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35
01.md
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@ -14,7 +14,7 @@ Each user has a keypair. Signatures, public key, and encodings are done accordin
The only object type that exists is the `event`, which has the following format on the wire: The only object type that exists is the `event`, which has the following format on the wire:
```json ```jsonc
{ {
"id": <32-bytes lowercase hex-encoded sha256 of the serialized event data>, "id": <32-bytes lowercase hex-encoded sha256 of the serialized event data>,
"pubkey": <32-bytes lowercase hex-encoded public key of the event creator>, "pubkey": <32-bytes lowercase hex-encoded public key of the event creator>,
@ -22,14 +22,14 @@ The only object type that exists is the `event`, which has the following format
"kind": <integer between 0 and 65535>, "kind": <integer between 0 and 65535>,
"tags": [ "tags": [
[<arbitrary string>...], [<arbitrary string>...],
... // ...
], ],
"content": <arbitrary string>, "content": <arbitrary string>,
"sig": <64-bytes lowercase hex of the signature of the sha256 hash of the serialized event data, which is the same as the "id" field> "sig": <64-bytes lowercase hex of the signature of the sha256 hash of the serialized event data, which is the same as the "id" field>
} }
``` ```
To obtain the `event.id`, we `sha256` the serialized event. The serialization is done over the UTF-8 JSON-serialized string (with no white space or line breaks between the fields) of the following structure: To obtain the `event.id`, we `sha256` the serialized event. The serialization is done over the UTF-8 JSON-serialized string (which is described below) of the following structure:
``` ```
[ [
@ -42,21 +42,32 @@ To obtain the `event.id`, we `sha256` the serialized event. The serialization is
] ]
``` ```
To prevent implementation differences from creating a different event ID for the same event, the following rules MUST be followed while serializing:
- No whitespace, line breaks or other unnecessary formatting should be included in the output JSON.
- No characters except the following should be escaped, and instead should be included verbatim:
- A line break, `0x0A`, as `\n`
- A double quote, `0x22`, as `\"`
- A backslash, `0x5C`, as `\\`
- A carriage return, `0x0D`, as `\r`
- A tab character, `0x09`, as `\t`
- A backspace, `0x08`, as `\b`
- A form feed, `0x0C`, as `\f`
- UTF-8 should be used for encoding.
### Tags ### Tags
Each tag is an array of strings of arbitrary size, with some conventions around them. Take a look at the example below: Each tag is an array of strings of arbitrary size, with some conventions around them. Take a look at the example below:
```json ```jsonc
{ {
...,
"tags": [ "tags": [
["e", "5c83da77af1dec6d7289834998ad7aafbd9e2191396d75ec3cc27f5a77226f36", "wss://nostr.example.com"], ["e", "5c83da77af1dec6d7289834998ad7aafbd9e2191396d75ec3cc27f5a77226f36", "wss://nostr.example.com"],
["p", "f7234bd4c1394dda46d09f35bd384dd30cc552ad5541990f98844fb06676e9ca"], ["p", "f7234bd4c1394dda46d09f35bd384dd30cc552ad5541990f98844fb06676e9ca"],
["a", "30023:f7234bd4c1394dda46d09f35bd384dd30cc552ad5541990f98844fb06676e9ca:abcd", "wss://nostr.example.com"], ["a", "30023:f7234bd4c1394dda46d09f35bd384dd30cc552ad5541990f98844fb06676e9ca:abcd", "wss://nostr.example.com"],
["alt", "reply"], ["alt", "reply"],
... // ...
], ],
... // ...
} }
``` ```
@ -101,19 +112,19 @@ Relays expose a websocket endpoint to which clients can connect. Clients SHOULD
Clients can send 3 types of messages, which must be JSON arrays, according to the following patterns: Clients can send 3 types of messages, which must be JSON arrays, according to the following patterns:
* `["EVENT", <event JSON as defined above>]`, used to publish events. * `["EVENT", <event JSON as defined above>]`, used to publish events.
* `["REQ", <subscription_id>, <filters JSON>...]`, used to request events and subscribe to new updates. * `["REQ", <subscription_id>, <filters1>, <filters2>, ...]`, used to request events and subscribe to new updates.
* `["CLOSE", <subscription_id>]`, used to stop previous subscriptions. * `["CLOSE", <subscription_id>]`, used to stop previous subscriptions.
`<subscription_id>` is an arbitrary, non-empty string of max length 64 chars, that should be used to represent a subscription. Relays should manage `<subscription_id>`s independently for each WebSocket connection; even if `<subscription_id>`s are the same string, they should be treated as different subscriptions for different connections. `<subscription_id>` is an arbitrary, non-empty string of max length 64 chars. It represents a subscription per connection. Relays MUST manage `<subscription_id>`s independently for each WebSocket connection. `<subscription_id>`s are not guaranteed to be globally unique.
`<filters>` is a JSON object that determines what events will be sent in that subscription, it can have the following attributes: `<filtersX>` is a JSON object that determines what events will be sent in that subscription, it can have the following attributes:
```json ```json
{ {
"ids": <a list of event ids>, "ids": <a list of event ids>,
"authors": <a list of lowercase pubkeys, the pubkey of an event must be one of these>, "authors": <a list of lowercase pubkeys, the pubkey of an event must be one of these>,
"kinds": <a list of a kind numbers>, "kinds": <a list of a kind numbers>,
"#<single-letter (a-zA-Z)>": <a list of tag values, for #e — a list of event ids, for #p — a list of event pubkeys etc>, "#<single-letter (a-zA-Z)>": <a list of tag values, for #e — a list of event ids, for #p — a list of pubkeys, etc.>,
"since": <an integer unix timestamp in seconds, events must be newer than this to pass>, "since": <an integer unix timestamp in seconds, events must be newer than this to pass>,
"until": <an integer unix timestamp in seconds, events must be older than this to pass>, "until": <an integer unix timestamp in seconds, events must be older than this to pass>,
"limit": <maximum number of events relays SHOULD return in the initial query> "limit": <maximum number of events relays SHOULD return in the initial query>
@ -136,7 +147,7 @@ The `limit` property of a filter is only valid for the initial query and MUST be
### From relay to client: sending events and notices ### From relay to client: sending events and notices
Relays can send 4 types of messages, which must also be JSON arrays, according to the following patterns: Relays can send 5 types of messages, which must also be JSON arrays, according to the following patterns:
* `["EVENT", <subscription_id>, <event JSON as defined above>]`, used to send events requested by clients. * `["EVENT", <subscription_id>, <event JSON as defined above>]`, used to send events requested by clients.
* `["OK", <event_id>, <true|false>, <message>]`, used to indicate acceptance or denial of an `EVENT` message. * `["OK", <event_id>, <true|false>, <message>]`, used to indicate acceptance or denial of an `EVENT` message.

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@ -1,12 +1,12 @@
NIP-02 NIP-02
====== ======
Contact List and Petnames Follow List
------------------------- -----------
`final` `optional` `final` `optional`
A special event with kind `3`, meaning "contact list" is defined as having a list of `p` tags, one for each of the followed/known profiles one is following. A special event with kind `3`, meaning "follow list" is defined as having a list of `p` tags, one for each of the followed/known profiles one is following.
Each tag entry should contain the key for the profile, a relay URL where events from that key can be found (can be set to an empty string if not needed), and a local name (or "petname") for that profile (can also be set to an empty string or not provided), i.e., `["p", <32-bytes hex key>, <main relay URL>, <petname>]`. The `content` can be anything and should be ignored. Each tag entry should contain the key for the profile, a relay URL where events from that key can be found (can be set to an empty string if not needed), and a local name (or "petname") for that profile (can also be set to an empty string or not provided), i.e., `["p", <32-bytes hex key>, <main relay URL>, <petname>]`. The `content` can be anything and should be ignored.
@ -25,27 +25,29 @@ For example:
} }
``` ```
Every new contact list that gets published overwrites the past ones, so it should contain all entries. Relays and clients SHOULD delete past contact lists as soon as they receive a new one. Every new following list that gets published overwrites the past ones, so it should contain all entries. Relays and clients SHOULD delete past following lists as soon as they receive a new one.
Whenever new follows are added to an existing list, clients SHOULD append them to the end of the list, so they are stored in chronological order.
## Uses ## Uses
### Contact list backup ### Follow list backup
If one believes a relay will store their events for sufficient time, they can use this kind-3 event to backup their following list and recover on a different device. If one believes a relay will store their events for sufficient time, they can use this kind-3 event to backup their following list and recover on a different device.
### Profile discovery and context augmentation ### Profile discovery and context augmentation
A client may rely on the kind-3 event to display a list of followed people by profiles one is browsing; make lists of suggestions on who to follow based on the contact lists of other people one might be following or browsing; or show the data in other contexts. A client may rely on the kind-3 event to display a list of followed people by profiles one is browsing; make lists of suggestions on who to follow based on the follow lists of other people one might be following or browsing; or show the data in other contexts.
### Relay sharing ### Relay sharing
A client may publish a full list of contacts with good relays for each of their contacts so other clients may use these to update their internal relay lists if needed, increasing censorship-resistance. A client may publish a follow list with good relays for each of their follows so other clients may use these to update their internal relay lists if needed, increasing censorship-resistance.
### Petname scheme ### Petname scheme
The data from these contact lists can be used by clients to construct local ["petname"](http://www.skyhunter.com/marcs/petnames/IntroPetNames.html) tables derived from other people's contact lists. This alleviates the need for global human-readable names. For example: The data from these follow lists can be used by clients to construct local ["petname"](http://www.skyhunter.com/marcs/petnames/IntroPetNames.html) tables derived from other people's follow lists. This alleviates the need for global human-readable names. For example:
A user has an internal contact list that says A user has an internal follow list that says
```json ```json
[ [
@ -53,7 +55,7 @@ A user has an internal contact list that says
] ]
``` ```
And receives two contact lists, one from `21df6d143fb96c2ec9d63726bf9edc71` that says And receives two follow lists, one from `21df6d143fb96c2ec9d63726bf9edc71` that says
```json ```json
[ [

4
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@ -1,10 +1,12 @@
> __Warning__ `unrecommended`: deprecated in favor of [NIP-44](44.md)
NIP-04 NIP-04
====== ======
Encrypted Direct Message Encrypted Direct Message
------------------------ ------------------------
`final` `optional` `final` `unrecommended` `optional`
A special event with kind `4`, meaning "encrypted direct message". It is supposed to have the following attributes: A special event with kind `4`, meaning "encrypted direct message". It is supposed to have the following attributes:

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@ -18,22 +18,12 @@ async window.nostr.signEvent(event: { created_at: number, kind: number, tags: st
Aside from these two basic above, the following functions can also be implemented optionally: Aside from these two basic above, the following functions can also be implemented optionally:
``` ```
async window.nostr.getRelays(): { [url: string]: {read: boolean, write: boolean} } // returns a basic map of relay urls to relay policies async window.nostr.getRelays(): { [url: string]: {read: boolean, write: boolean} } // returns a basic map of relay urls to relay policies
async window.nostr.nip04.encrypt(pubkey, plaintext): string // returns ciphertext and iv as specified in nip-04 async window.nostr.nip04.encrypt(pubkey, plaintext): string // returns ciphertext and iv as specified in nip-04 (deprecated)
async window.nostr.nip04.decrypt(pubkey, ciphertext): string // takes ciphertext and iv as specified in nip-04 async window.nostr.nip04.decrypt(pubkey, ciphertext): string // takes ciphertext and iv as specified in nip-04 (deprecated)
async window.nostr.nip44.encrypt(pubkey, plaintext): string // returns ciphertext as specified in nip-44
async window.nostr.nip44.decrypt(pubkey, ciphertext): string // takes ciphertext as specified in nip-44
``` ```
### Implementation ### Implementation
- [horse](https://github.com/fiatjaf/horse) (Chrome and derivatives) See https://github.com/aljazceru/awesome-nostr#nip-07-browser-extensions.
- [nos2x](https://github.com/fiatjaf/nos2x) (Chrome and derivatives)
- [Alby](https://getalby.com) (Chrome and derivatives, Firefox)
- [Blockcore](https://www.blockcore.net/wallet) (Chrome and derivatives)
- [nos2x-fox](https://diegogurpegui.com/nos2x-fox/) (Firefox)
- [Flamingo](https://www.getflamingo.org/) (Chrome and derivatives)
- [AKA Profiles](https://github.com/neilck/aka-extension) (Chrome, stores multiple keys)
- [TokenPocket](https://www.tokenpocket.pro/) (Android, IOS, Chrome and derivatives)
- [Nostrmo](https://github.com/haorendashu/nostrmo_faq#download) (Android, IOS)
- [Spring Browser](https://spring.site) (Android)
- [nodestr](https://github.com/lightning-digital-entertainment/nodestr) (NodeJS polyfill)
- [Nostore](https://apps.apple.com/us/app/nostore/id1666553677) (Safari on iOS/MacOS)
- [OneKey](https://onekey.so/) (Android, IOS, Chrome and derivatives)

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@ -56,7 +56,7 @@ A merchant can publish these events:
"id": <string, id of the shipping zone, generated by the merchant>, "id": <string, id of the shipping zone, generated by the merchant>,
"name": <string (optional), zone name>, "name": <string (optional), zone name>,
"cost": <float, base cost for shipping. The currency is defined at the stall level>, "cost": <float, base cost for shipping. The currency is defined at the stall level>,
"regions": [<string, regions included in this zone>], "regions": [<string, regions included in this zone>]
} }
] ]
} }
@ -101,7 +101,7 @@ Fields that are not self-explanatory:
"shipping": [ "shipping": [
{ {
"id": <string, id of the shipping zone (must match one of the zones defined for the stall)>, "id": <string, id of the shipping zone (must match one of the zones defined for the stall)>,
"cost": <float, extra cost for shipping. The currency is defined at the stall level>, "cost": <float, extra cost for shipping. The currency is defined at the stall level>
} }
] ]
} }
@ -139,7 +139,7 @@ Fields that are not self-explanatory:
## Checkout events ## Checkout events
All checkout events are sent as JSON strings using ([NIP04](https://github.com/nostr-protocol/nips/blob/master/04.md)). All checkout events are sent as JSON strings using ([NIP-04](https://github.com/nostr-protocol/nips/blob/master/04.md)).
The `merchant` and the `customer` can exchange JSON messages that represent different actions. Each `JSON` message `MUST` have a `type` field indicating the what the JSON represents. Possible types: The `merchant` and the `customer` can exchange JSON messages that represent different actions. Each `JSON` message `MUST` have a `type` field indicating the what the JSON represents. Possible types:
@ -149,21 +149,20 @@ The `merchant` and the `customer` can exchange JSON messages that represent diff
| 1 | Merchant | Payment Request | | 1 | Merchant | Payment Request |
| 2 | Merchant | Order Status Update | | 2 | Merchant | Order Status Update |
### Step 1: `customer` order (event) ### Step 1: `customer` order (event)
The below json goes in content of [NIP04](https://github.com/nostr-protocol/nips/blob/master/04.md). The below JSON goes in content of [NIP-04](https://github.com/nostr-protocol/nips/blob/master/04.md).
```json ```json
{ {
"id": <string, id generated by the customer>, "id": <string, id generated by the customer>,
"type": 0, "type": 0,
"name": <string (optional), ???>, "name": <string (optional), ???>,
"address": <string (optional), for physical goods an address should be provided> "address": <string (optional), for physical goods an address should be provided>,
"message": "<string (optional), message for merchant>, "message": "<string (optional), message for merchant>,
"contact": { "contact": {
"nostr": <32-bytes hex of a pubkey>, "nostr": <32-bytes hex of a pubkey>,
"phone": <string (optional), if the customer wants to be contacted by phone>, "phone": <string (optional), if the customer wants to be contacted by phone>,
"email": <string (optional), if the customer wants to be contacted by email>, "email": <string (optional), if the customer wants to be contacted by email>
}, },
"items": [ "items": [
{ {
@ -183,7 +182,7 @@ _Open_: is `contact.nostr` required?
Sent back from the merchant for payment. Any payment option is valid that the merchant can check. Sent back from the merchant for payment. Any payment option is valid that the merchant can check.
The below json goes in `content` of [NIP04](https://github.com/nostr-protocol/nips/blob/master/04.md). The below JSON goes in `content` of [NIP-04](https://github.com/nostr-protocol/nips/blob/master/04.md).
`payment_options`/`type` include: `payment_options`/`type` include:
@ -218,7 +217,7 @@ The below json goes in `content` of [NIP04](https://github.com/nostr-protocol/ni
Once payment has been received and processed. Once payment has been received and processed.
The below json goes in `content` of [NIP04](https://github.com/nostr-protocol/nips/blob/master/04.md). The below JSON goes in `content` of [NIP-04](https://github.com/nostr-protocol/nips/blob/master/04.md).
```json ```json
{ {
@ -229,7 +228,9 @@ The below json goes in `content` of [NIP04](https://github.com/nostr-protocol/ni
"shipped": <bool: has been shipped>, "shipped": <bool: has been shipped>,
} }
``` ```
## Customize Marketplace ## Customize Marketplace
Create a customized user experience using the `naddr` from [NIP-19](https://github.com/nostr-protocol/nips/blob/master/19.md#shareable-identifiers-with-extra-metadata). The use of `naddr` enables easy sharing of marketplace events while incorporating a rich set of metadata. This metadata can include relays, merchant profiles, and more. Subsequently, it allows merchants to be grouped into a market, empowering the market creator to configure the marketplace's user interface and user experience, and share that marketplace. This customization can encompass elements such as market name, description, logo, banner, themes, and even color schemes, offering a tailored and unique marketplace experience. Create a customized user experience using the `naddr` from [NIP-19](https://github.com/nostr-protocol/nips/blob/master/19.md#shareable-identifiers-with-extra-metadata). The use of `naddr` enables easy sharing of marketplace events while incorporating a rich set of metadata. This metadata can include relays, merchant profiles, and more. Subsequently, it allows merchants to be grouped into a market, empowering the market creator to configure the marketplace's user interface and user experience, and share that marketplace. This customization can encompass elements such as market name, description, logo, banner, themes, and even color schemes, offering a tailored and unique marketplace experience.
### Event `30019`: Create or update marketplace UI/UX ### Event `30019`: Create or update marketplace UI/UX
@ -253,6 +254,81 @@ Create a customized user experience using the `naddr` from [NIP-19](https://gith
This event leverages naddr to enable comprehensive customization and sharing of marketplace configurations, fostering a unique and engaging marketplace environment. This event leverages naddr to enable comprehensive customization and sharing of marketplace configurations, fostering a unique and engaging marketplace environment.
## Auctions
### Event `30020`: Create or update a product sold as an auction
**Event Content**:
```json
{
"id": <String, UUID generated by the merchant. Sequential IDs (`0`, `1`, `2`...) are discouraged>,
"stall_id": <String, UUID of the stall to which this product belong to>,
"name": <String, product name>,
"description": <String (optional), product description>,
"images": <[String], array of image URLs, optional>,
"starting_bid": <int>,
"start_date": <int (optional) UNIX timestamp, date the auction started / will start>,
"duration": <int, number of seconds the auction will run for, excluding eventual time extensions that might happen>,
"specs": [
[<String, spec key>, <String, spec value>]
],
"shipping": [
{
"id": <String, UUID of the shipping zone. Must match one of the zones defined for the stall>,
"cost": <float, extra cost for shipping. The currency is defined at the stall level>
}
]
}
```
> [!NOTE]
> Items sold as an auction are very similar in structure to fixed-price items, with some important differences worth noting.
* The `start_date` can be set to a date in the future if the auction is scheduled to start on that date, or can be omitted if the start date is unknown/hidden. If the start date is not specified, the auction will have to be edited later to set an actual date.
* The auction runs for an initial number of seconds after the `start_date`, specified by `duration`.
### Event `1021`: Bid
```json
{
"content": <int, amount of sats>,
"tags": [["e", <event ID of the auction to bid on>]],
}
```
Bids are simply events of kind `1021` with a `content` field specifying the amount, in the currency of the auction. Bids must reference an auction.
> [!NOTE]
> Auctions can be edited as many times as desired (they are "parameterized replaceable events") by the author - even after the start_date, but they cannot be edited after they have received the first bid! This is enforced by the fact that bids reference the event ID of the auction (rather than the product UUID), which changes with every new version of the auctioned product. So a bid is always attached to one "version". Editing the auction after a bid would result in the new product losing the bid!
### Event `1022`: Bid confirmation
**Event Content**:
```json
{
"status": <String, "accepted" | "rejected" | "pending" | "winner">,
"message": <String (optional)>,
"duration_extended": <int (optional), number of seconds>
}
```
**Event Tags**:
```json
"tags": [["e" <event ID of the bid being confirmed>], ["e", <event ID of the auction>]],
```
Bids should be confirmed by the merchant before being considered as valid by other clients. So clients should subscribe to *bid confirmation* events (kind `1022`) for every auction that they follow, in addition to the actual bids and should check that the pubkey of the bid confirmation matches the pubkey of the merchant (in addition to checking the signature).
The `content` field is a JSON which includes *at least* a `status`. `winner` is how the *winning bid* is replied to after the auction ends and the winning bid is picked by the merchant.
The reasons for which a bid can be marked as `rejected` or `pending` are up to the merchant's implementation and configuration - they could be anything from basic validation errors (amount too low) to the bidder being blacklisted or to the bidder lacking sufficient *trust*, which could lead to the bid being marked as `pending` until sufficient verification is performed. The difference between the two is that `pending` bids *might* get approved after additional steps are taken by the bidder, whereas `rejected` bids can not be later approved.
An additional `message` field can appear in the `content` JSON to give further context as of why a bid is `rejected` or `pending`.
Another thing that can happen is - if bids happen very close to the end date of the auction - for the merchant to decide to extend the auction duration for a few more minutes. This is done by passing a `duration_extended` field as part of a bid confirmation, which would contain a number of seconds by which the initial duration is extended. So the actual end date of an auction is always `start_date + duration + (SUM(c.duration_extended) FOR c in all confirmations`.
## Customer support events ## Customer support events
Customer support is handled over whatever communication method was specified. If communicating via nostr, NIP-04 is used https://github.com/nostr-protocol/nips/blob/master/04.md. Customer support is handled over whatever communication method was specified. If communicating via nostr, NIP-04 is used https://github.com/nostr-protocol/nips/blob/master/04.md.

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@ -20,9 +20,10 @@ reposted.
## Quote Reposts ## Quote Reposts
Quote reposts are `kind 1` events with an embedded `e` tag Quote reposts are `kind 1` events with an embedded `q` tag of the note being
(see [NIP-08](08.md) and [NIP-27](27.md)). Because a quote repost includes quote reposted. The `q` tag ensures quote reposts are not pulled and included
an `e` tag, it may show up along replies to the reposted note. as replies in threads. It also allows you to easily pull and count all of the
quotes for a post.
## Generic Reposts ## Generic Reposts

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@ -39,3 +39,4 @@ tags
These tags may be present in multiple event kinds. Whenever a different meaning is not specified by some more specific NIP, they have the following meanings: These tags may be present in multiple event kinds. Whenever a different meaning is not specified by some more specific NIP, they have the following meanings:
- `r`: a web URL the event is referring to in some way - `r`: a web URL the event is referring to in some way
- `title`: title of the event

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@ -0,0 +1,197 @@
NIP-29
======
Relay-based Groups
------------------
`draft` `optional`
This NIP defines a standard for groups that are only writable by a closed set of users. They can be public for reading by external users or not.
Groups are identified by a random string of any length that serves as an _id_.
There is no way to create a group, what happens is just that relays (most likely when asked by users) will create rules around some specific ids so these ids can serve as an actual group, henceforth messages sent to that group will be subject to these rules.
Normally a group will originally belong to one specific relay, but the community may choose to move the group to other relays or even fork the group so it exists in different forms -- still using the same _id_ -- across different relays.
## Relay-generated events
Relays are supposed to generate the events that describe group metadata and group admins. These are parameterized replaceable events signed by the relay keypair directly, with the group _id_ as the `d` tag.
## Group identifier
A group may be identified by a string in the format `<host>'<group-id>`. For example, a group with _id_ `abcdef` hosted at the relay `wss://groups.nostr.com` would be identified by the string `groups.nostr.com'abcdef`.
## The `h` tag
Events sent by users to groups (chat messages, text notes, moderation events etc) must have an `h` tag with the value set to the group _id_.
## Timeline references
In order to not be used out of context, events sent to these groups may contain references to previous events seen from the same relay in the `previous` tag. The choice of which previous events to pick belongs to the clients. The references are to be made using the first 8 characters (4 bytes) of any event in the last 50 events seen by the user in the relay, excluding events by themselves. There can be any number of references (including zero), but it's recommended that clients include at least 3 and that relays enforce this.
This is a hack to prevent messages from being broadcasted to external relays that have forks of one group out of context. Relays are expected to reject any events that contain timeline references to events not found in their own database. Clients should also check these to keep relays honest about them.
## Late publication
Relays should prevent late publication (messages published now with a timestamp from days or even hours ago) unless they are open to receive a group forked or moved from another relay.
## Event definitions
- *text root note* (`kind:11`)
This is the basic unit of a "microblog" root text note sent to a group.
```js
"kind": 11,
"content": "hello my friends lovers of pizza",
"tags": [
["h", "<group-id>"],
["previous", "<event-id-first-chars>", "<event-id-first-chars>", ...]
]
...
```
- *threaded text reply* (`kind:12`)
This is the basic unit of a "microblog" reply note sent to a group. It's the same as `kind:11`, except for the fact that it must be used whenever it's in reply to some other note (either in reply to a `kind:11` or a `kind:12`). `kind:12` events SHOULD use NIP-10 markers, leaving an empty relay url:
* `["e", "<kind-11-root-id>", "", "root"]`
* `["e", "<kind-12-event-id>", "", "reply"]`
- *chat message* (`kind:9`)
This is the basic unit of a _chat message_ sent to a group.
```js
"kind": 9,
"content": "hello my friends lovers of pizza",
"tags": [
["h", "<group-id>"],
["previous", "<event-id-first-chars>", "<event-id-first-chars>", ...]
]
...
```
- *chat message threaded reply* (`kind:10`)
Similar to `kind:12`, this is the basic unit of a chat message sent to a group. This is intended for in-chat threads that may be hidden by default. Not all in-chat replies MUST use `kind:10`, only when the intention is to create a hidden thread that isn't part of the normal flow of the chat (although clients are free to display those by default too).
`kind:10` SHOULD use NIP-10 markers, just like `kind:12`.
- *join request* (`kind:9021`)
Any user can send one of these events to the relay in order to be automatically or manually added to the group. If the group is `open` the relay will automatically issue a `kind:9000` in response adding this user. Otherwise group admins may choose to query for these requests and act upon them.
```js
{
"kind": 9021,
"content": "optional reason",
"tags": [
["h", "<group-id>"]
]
}
```
- *moderation events* (`kinds:9000-9020`) (optional)
Clients can send these events to a relay in order to accomplish a moderation action. Relays must check if the pubkey sending the event is capable of performing the given action. The relay may discard the event after taking action or keep it as a moderation log.
```js
{
"kind": 90xx,
"content": "optional reason",
"tags": [
["h", "<group-id>"],
["previous", ...]
]
}
```
Each moderation action uses a different kind and requires different arguments, which are given as tags. These are defined in the following table:
| kind | name | tags |
| --- | --- | --- |
| 9000 | `add-user` | `p` (pubkey hex) |
| 9001 | `remove-user` | `p` (pubkey hex) |
| 9002 | `edit-metadata` | `name`, `about`, `picture` (string) |
| 9003 | `add-permission` | `p` (pubkey), `permission` (name) |
| 9004 | `remove-permission` | `p` (pubkey), `permission` (name) |
| 9005 | `delete-event` | `e` (id hex) |
| 9006 | `edit-group-status` | `public` or `private`, `open` or `closed` |
- *group metadata* (`kind:39000`) (optional)
This event defines the metadata for the group -- basically how clients should display it. It must be generated and signed by the relay in which is found. Relays shouldn't accept these events if they're signed by anyone else.
If the group is forked and hosted in multiple relays, there will be multiple versions of this event in each different relay and so on.
```js
{
"kind": 39000,
"content": "",
"tags": [
["d", "<group-id>"],
["name", "Pizza Lovers"],
["picture", "https://pizza.com/pizza.png"],
["about", "a group for people who love pizza"],
["public"], // or ["private"]
["open"] // or ["closed"]
]
...
}
```
`name`, `picture` and `about` are basic metadata for the group for display purposes. `public` signals the group can be _read_ by anyone, while `private` signals that only AUTHed users can read. `open` signals that anyone can request to join and the request will be automatically granted, while `closed` signals that members must be pre-approved or that requests to join will be manually handled.
- *group admins* (`kind:39001`) (optional)
Similar to the group metadata, this event is supposed to be generated by relays that host the group.
Each admin gets a label that is only used for display purposes, and a list of permissions it has are listed afterwards. These permissions can inform client building UI, but ultimately are evaluated by the relay in order to become effective.
The list of capabilities, as defined by this NIP, for now, is the following:
- `add-user`
- `edit-metadata`
- `delete-event`
- `remove-user`
- `add-permission`
- `remove-permission`
- `edit-group-status`
```js
{
"kind": 39001,
"content": "list of admins for the pizza lovers group",
"tags": [
["d", "<group-id>"],
["p", "<pubkey1-as-hex>", "ceo", "add-user", "edit-metadata", "delete-event", "remove-user"],
["p", "<pubkey2-as-hex>", "secretary", "add-user", "delete-event"]
]
...
}
```
- *group members* (`kind:39002`) (optional)
Similar to *group admins*, this event is supposed to be generated by relays that host the group.
It's a NIP-51-like list of pubkeys that are members of the group. Relays might choose to not to publish this information or to restrict what pubkeys can fetch it.
```json
{
"kind": 39002,
"content": "list of members for the pizza lovers group",
"tags": [
["d", "<group-id>"],
["p", "<admin1>"],
["p", "<member-pubkey1>"],
["p", "<member-pubkey2>"],
]
}
```
## Storing the list of groups a user belongs to
A definition for kind `10009` was included in [NIP-51](51.md) that allows clients to store the list of groups a user wants to remember being in.

2
30.md
View File

@ -6,7 +6,7 @@ Custom Emoji
`draft` `optional` `draft` `optional`
Custom emoji may be added to **kind 0** and **kind 1** events by including one or more `"emoji"` tags, in the form: Custom emoji may be added to **kind 0**, **kind 1**, **kind 7** ([NIP-25](25.md)) and **kind 30315** ([NIP-38](38.md)) events by including one or more `"emoji"` tags, in the form:
``` ```
["emoji", <shortcode>, <image-url>] ["emoji", <shortcode>, <image-url>]

6
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@ -20,19 +20,19 @@ A relay may want to require clients to authenticate to access restricted resourc
### New client-relay protocol messages ### New client-relay protocol messages
This NIP defines a new message, `AUTH`, which relays can send when they support authentication and clients can send to relays when they want to authenticate. When sent by relays, the message is of the following form: This NIP defines a new message, `AUTH`, which relays CAN send when they support authentication and clients can send to relays when they want to authenticate. When sent by relays the message has the following form:
```json ```json
["AUTH", <challenge-string>] ["AUTH", <challenge-string>]
``` ```
And, when sent by clients, of the following form: And, when sent by clients, the following form:
```json ```json
["AUTH", <signed-event-json>] ["AUTH", <signed-event-json>]
``` ```
`AUTH` messages sent by clients should be answered with an `OK` message, like any `EVENT` message. `AUTH` messages sent by clients MUST be answered with an `OK` message, like any `EVENT` message.
### Canonical authentication event ### Canonical authentication event

436
44.md
View File

@ -1,203 +1,295 @@
NIP-44 Places NIP-44
====== =====
`draft` `optional` Encrypted Payloads (Versioned)
------------------------------
A kind `37515` Place event represents a place on Earth. `optional`
Rationale The NIP introduces a new data format for keypair-based encryption. This NIP is versioned
----- to allow multiple algorithm choices to exist simultaneously. This format may be used for
many things, but MUST be used in the context of a signed event as described in NIP 01.
This NIP provides a decentralized mechanism for people to publish places that matter to them on a map without any governing intermediaries such as Google Maps or OpenStreetMaps. *Note*: this format DOES NOT define any `kind`s related to a new direct messaging standard,
only the encryption required to define one. It SHOULD NOT be used as a drop-in replacement
for NIP 04 payloads.
A Place event is cryptographically owned by its creator who has the sole ability to edit it. ## Versions
Places can be zapped, reviewed, labeled, commented on, or shared like any other nostr event. Currently defined encryption algorithms:
High quality places can be found by following pubkeys who publish them, reviews, [NIP-51 lists](/51.md), or even attached [NIP-13 proof-of-work](/13.md). - `0x00` - Reserved
- `0x01` - Deprecated and undefined
- `0x02` - secp256k1 ECDH, HKDF, padding, ChaCha20, HMAC-SHA256, base64
Properties of a Place may be defined by its creator, but may also be crowdsourced as discussed below, enabling a balance between ownership and open-source contribution. ## Limitations
> [!TIP] Every nostr user has their own public key, which solves key distribution problems present
> The 7515 in 37515 is alphanumeric code for GEO in other solutions. However, nostr's relay-based architecture makes it difficult to implement
more robust private messaging protocols with things like metadata hiding, forward secrecy,
and post compromise secrecy.
### Good Use Cases The goal of this NIP is to have a _simple_ way to encrypt payloads used in the context of a signed
event. When applying this NIP to any use case, it's important to keep in mind your users' threat
model and this NIP's limitations. For high-risk situations, users should chat in specialized E2EE
messaging software and limit use of nostr to exchanging contacts.
- If you own a business, you can truly own your place on the map by publishing a Place. On its own, messages sent using this scheme have a number of important shortcomings:
- Large facilities and campuses with many points of interest can group and share their Places by using a NIP-51 list called a [World](/51.md). Clients can use World lists to filter the Places on the map for focused experiences.
- Publish temporary points of interest like a speed trap or meetup location.
- Create a Place for each of your favorite camping spots or hiking paths.
- Create a list of your favorite bars for a pub crawl to share with others.
- Copy useful geo data from other sources to make it available on nostr.
### Bad Use Cases - No deniability: it is possible to prove an event was signed by a particular key
- No forward secrecy: when a key is compromised, it is possible to decrypt all previous conversations
- No post-compromise security: when a key is compromised, it is possible to decrypt all future conversations
- No post-quantum security: a powerful quantum computer would be able to decrypt the messages
- IP address leak: user IP may be seen by relays and all intermediaries between user and relay
- Date leak: `created_at` is public, since it is a part of NIP 01 event
- Limited message size leak: padding only partially obscures true message length
- No attachments: they are not supported
- Replicating OpenStreetMaps data for every tree, river, road and municipality. This is background noise and should be handled in your client by tile services like Mapbox or OpenMapTiles. Lack of forward secrecy may be partially mitigated by only sending messages to trusted relays, and asking
- Publicizing your house. Don't publish places that put anyone's privacy at risk. relays to delete stored messages after a certain duration has elapsed.
Place Event Structure ## Version 2
-----
A Place is comprised of two main parts: GeoJSON defines the geospatial structure of the Place in a standard format that can be displayed on a map, and `prop` tags enable the definition of properties for the Place that adhere to existing mapping standards while also enabling crowdsourcing of properties. NIP-44 version 2 has the following design characteristics:
```javascript - Payloads are authenticated using a MAC before signing rather than afterwards because events are assumed
{ to be signed as specified in NIP-01. The outer signature serves to authenticate the full payload, and MUST
kind: 37515, be validated before decrypting.
content: '{"type":"FeatureCollection","features":[{"type":"Feature","properties":{},"geometry":{"coordinates":[-63.704031143965054,27.04213619251243],"type":"Point"}}]}' // stringified JSON. Use https://geojson.io to easily create GeoJSON objects for testing. - ChaCha is used instead of AES because it's faster and has
tags: [ [better security against multi-key attacks](https://datatracker.ietf.org/doc/draft-irtf-cfrg-aead-limits/).
["d", "something unique"], // unique identifier for replaceable event - ChaCha is used instead of XChaCha because XChaCha has not been standardized. Also, xChaCha's improved collision
["L", "osm"], // specify usage of OpenStreetMaps namespace resistance of nonces isn't necessary since every message has a new (key, nonce) pair.
["prop", "name", "Jitter's Coffee Shop", "osm"], - HMAC-SHA256 is used instead of Poly1305 because polynomial MACs are much easier to forge.
["prop", "opening_hours", "Mo-Fr_6:00-20:00,Sa-Su_6:00-17:00", "osm"], - SHA256 is used instead of SHA3 or BLAKE because it is already used in nostr. Also BLAKE's speed advantage
["L", "schema/Place"], // specify usage of schema.org/Place namespace is smaller in non-parallel environments.
["prop", "logo", "https://nostr.build/logo.png", "schema/Place"], - A custom padding scheme is used instead of padmé because it provides better leakage reduction for small messages.
["L", "schema/PostalAddress"], // specify usage of schema.org/PostalAddress namespace, even though this is technically also underneath schema/Place's `address` property: - Base64 encoding is used instead of another compression algorithm because it is widely available, and is already used in nostr.
["prop", "addressCountry", "USA", "schema/PostalAddress"],
["admin", "5c83da77af1dec6d7289834998ad7aafbd9e2191396d75ec3cc27f5a77226f36"] ### Encryption
["admin", "f7234bd4c1394dda46d09f35bd384dd30cc552ad5541990f98844fb06676e9ca"]
["g", "dtee7"], // geohash of place; should be as accurate as possible 1. Calculate a conversation key
["g", "dtee"], // all less-precise geohashes must be defined to allow for searching -- see https://github.com/nostr-protocol/nips/pull/136#issuecomment-1788549584 - Execute ECDH (scalar multiplication) of public key B by private key A
["g", "dte"], Output `shared_x` must be unhashed, 32-byte encoded x coordinate of the shared point
["g", "dt"], - Use HKDF-extract with sha256, `IKM=shared_x` and `salt=utf8_encode('nip44-v2')`
["g", "d"], - HKDF output will be a `conversation_key` between two users.
], - It is always the same, when key roles are swapped: `conv(a, B) == conv(b, A)`
pubkey: ... 2. Generate a random 32-byte nonce
created_at: ... - Always use [CSPRNG](https://en.wikipedia.org/wiki/Cryptographically_secure_pseudorandom_number_generator)
} - Don't generate a nonce from message content
- Don't re-use the same nonce between messages: doing so would make them decryptable,
but won't leak the long-term key
3. Calculate message keys
- The keys are generated from `conversation_key` and `nonce`. Validate that both are 32 bytes long
- Use HKDF-expand, with sha256, `PRK=conversation_key`, `info=nonce` and `L=76`
- Slice 76-byte HKDF output into: `chacha_key` (bytes 0..32), `chacha_nonce` (bytes 32..44), `hmac_key` (bytes 44..76)
4. Add padding
- Content must be encoded from UTF-8 into byte array
- Validate plaintext length. Minimum is 1 byte, maximum is 65535 bytes
- Padding format is: `[plaintext_length: u16][plaintext][zero_bytes]`
- Padding algorithm is related to powers-of-two, with min padded msg size of 32
- Plaintext length is encoded in big-endian as first 2 bytes of the padded blob
5. Encrypt padded content
- Use ChaCha20, with key and nonce from step 3
6. Calculate MAC (message authentication code)
- AAD (additional authenticated data) is used - instead of calculating MAC on ciphertext,
it's calculated over a concatenation of `nonce` and `ciphertext`
- Validate that AAD (nonce) is 32 bytes
7. Base64-encode (with padding) params using `concat(version, nonce, ciphertext, mac)`
Encrypted payloads MUST be included in an event's payload, hashed, and signed as defined in NIP 01, using schnorr
signature scheme over secp256k1.
### Decryption
Before decryption, the event's pubkey and signature MUST be validated as defined in NIP 01. The public key MUST be
a valid non-zero secp256k1 curve point, and the signature must be valid secp256k1 schnorr signature. For exact
validation rules, refer to BIP-340.
1. Check if first payload's character is `#`
- `#` is an optional future-proof flag that means non-base64 encoding is used
- The `#` is not present in base64 alphabet, but, instead of throwing `base64 is invalid`,
implementations MUST indicate that the encryption version is not yet supported
2. Decode base64
- Base64 is decoded into `version, nonce, ciphertext, mac`
- If the version is unknown, implementations must indicate that the encryption version is not supported
- Validate length of base64 message to prevent DoS on base64 decoder: it can be in range from 132 to 87472 chars
- Validate length of decoded message to verify output of the decoder: it can be in range from 99 to 65603 bytes
3. Calculate conversation key
- See step 1 of [encryption](#Encryption)
4. Calculate message keys
- See step 3 of [encryption](#Encryption)
5. Calculate MAC (message authentication code) with AAD and compare
- Stop and throw an error if MAC doesn't match the decoded one from step 2
- Use constant-time comparison algorithm
6. Decrypt ciphertext
- Use ChaCha20 with key and nonce from step 3
7. Remove padding
- Read the first two BE bytes of plaintext that correspond to plaintext length
- Verify that the length of sliced plaintext matches the value of the two BE bytes
- Verify that calculated padding from step 3 of the [encryption](#Encryption) process matches the actual padding
### Details
- Cryptographic methods
- `secure_random_bytes(length)` fetches randomness from CSPRNG.
- `hkdf(IKM, salt, info, L)` represents HKDF [(RFC 5869)](https://datatracker.ietf.org/doc/html/rfc5869)
with SHA256 hash function comprised of methods `hkdf_extract(IKM, salt)` and `hkdf_expand(OKM, info, L)`.
- `chacha20(key, nonce, data)` is ChaCha20 [(RFC 8439)](https://datatracker.ietf.org/doc/html/rfc8439) with
starting counter set to 0.
- `hmac_sha256(key, message)` is HMAC [(RFC 2104)](https://datatracker.ietf.org/doc/html/rfc2104).
- `secp256k1_ecdh(priv_a, pub_b)` is multiplication of point B by scalar a (`a ⋅ B`), defined in
[BIP340](https://github.com/bitcoin/bips/blob/e918b50731397872ad2922a1b08a5a4cd1d6d546/bip-0340.mediawiki).
The operation produces a shared point, and we encode the shared point's 32-byte x coordinate, using method
`bytes(P)` from BIP340. Private and public keys must be validated as per BIP340: pubkey must be a valid,
on-curve point, and private key must be a scalar in range `[1, secp256k1_order - 1]`.
- Operators
- `x[i:j]`, where `x` is a byte array and `i, j <= 0` returns a `(j - i)`-byte array with a copy of the
`i`-th byte (inclusive) to the `j`-th byte (exclusive) of `x`.
- Constants `c`:
- `min_plaintext_size` is 1. 1b msg is padded to 32b.
- `max_plaintext_size` is 65535 (64kb - 1). It is padded to 65536.
- Functions
- `base64_encode(string)` and `base64_decode(bytes)` are Base64 ([RFC 4648](https://datatracker.ietf.org/doc/html/rfc4648), with padding)
- `concat` refers to byte array concatenation
- `is_equal_ct(a, b)` is constant-time equality check of 2 byte arrays
- `utf8_encode(string)` and `utf8_decode(bytes)` transform string to byte array and back
- `write_u8(number)` restricts number to values 0..255 and encodes into Big-Endian uint8 byte array
- `write_u16_be(number)` restricts number to values 0..65535 and encodes into Big-Endian uint16 byte array
- `zeros(length)` creates byte array of length `length >= 0`, filled with zeros
- `floor(number)` and `log2(number)` are well-known mathematical methods
### Implementation pseudocode
The following is a collection of python-like pseudocode functions which implement the above primitives,
intended to guide implementers. A collection of implementations in different languages is available at https://github.com/paulmillr/nip44.
```py
# Calculates length of the padded byte array.
def calc_padded_len(unpadded_len):
next_power = 1 << (floor(log2(unpadded_len - 1))) + 1
if next_power <= 256:
chunk = 32
else:
chunk = next_power / 8
if unpadded_len <= 32:
return 32
else:
return chunk * (floor((len - 1) / chunk) + 1)
# Converts unpadded plaintext to padded bytearray
def pad(plaintext):
unpadded = utf8_encode(plaintext)
unpadded_len = len(plaintext)
if (unpadded_len < c.min_plaintext_size or
unpadded_len > c.max_plaintext_size): raise Exception('invalid plaintext length')
prefix = write_u16_be(unpadded_len)
suffix = zeros(calc_padded_len(unpadded_len) - unpadded_len)
return concat(prefix, unpadded, suffix)
# Converts padded bytearray to unpadded plaintext
def unpad(padded):
unpadded_len = read_uint16_be(padded[0:2])
unpadded = padded[2:2+unpadded_len]
if (unpadded_len == 0 or
len(unpadded) != unpadded_len or
len(padded) != 2 + calc_padded_len(unpadded_len)): raise Exception('invalid padding')
return utf8_decode(unpadded)
# metadata: always 65b (version: 1b, nonce: 32b, max: 32b)
# plaintext: 1b to 0xffff
# padded plaintext: 32b to 0xffff
# ciphertext: 32b+2 to 0xffff+2
# raw payload: 99 (65+32+2) to 65603 (65+0xffff+2)
# compressed payload (base64): 132b to 87472b
def decode_payload(payload):
plen = len(payload)
if plen == 0 or payload[0] == '#': raise Exception('unknown version')
if plen < 132 or plen > 87472: raise Exception('invalid payload size')
data = base64_decode(payload)
dlen = len(d)
if dlen < 99 or dlen > 65603: raise Exception('invalid data size');
vers = data[0]
if vers != 2: raise Exception('unknown version ' + vers)
nonce = data[1:33]
ciphertext = data[33:dlen - 32]
mac = data[dlen - 32:dlen]
return (nonce, ciphertext, mac)
def hmac_aad(key, message, aad):
if len(aad) != 32: raise Exception('AAD associated data must be 32 bytes');
return hmac(sha256, key, concat(aad, message));
# Calculates long-term key between users A and B: `get_key(Apriv, Bpub) == get_key(Bpriv, Apub)`
def get_conversation_key(private_key_a, public_key_b):
shared_x = secp256k1_ecdh(private_key_a, public_key_b)
return hkdf_extract(IKM=shared_x, salt=utf8_encode('nip44-v2'))
# Calculates unique per-message key
def get_message_keys(conversation_key, nonce):
if len(conversation_key) != 32: raise Exception('invalid conversation_key length')
if len(nonce) != 32: raise Exception('invalid nonce length')
keys = hkdf_expand(OKM=conversation_key, info=nonce, L=76)
chacha_key = keys[0:32]
chacha_nonce = keys[32:44]
hmac_key = keys[44:76]
return (chacha_key, chacha_nonce, hmac_key)
def encrypt(plaintext, conversation_key, nonce):
(chacha_key, chacha_nonce, hmac_key) = get_message_keys(conversation_key, nonce)
padded = pad(plaintext)
ciphertext = chacha20(key=chacha_key, nonce=chacha_nonce, data=padded)
mac = hmac_aad(key=hmac_key, message=ciphertext, aad=nonce)
return base64_encode(concat(write_u8(2), nonce, ciphertext, mac))
def decrypt(payload, conversation_key):
(nonce, ciphertext, mac) = decode_payload(payload)
(chacha_key, chacha_nonce, hmac_key) = get_message_keys(conversation_key, nonce)
calculated_mac = hmac_aad(key=hmac_key, message=ciphertext, aad=nonce)
if not is_equal_ct(calculated_mac, mac): raise Exception('invalid MAC')
padded_plaintext = chacha20(key=chacha_key, nonce=chacha_nonce, data=ciphertext)
return unpad(padded_plaintext)
# Usage:
# conversation_key = get_conversation_key(sender_privkey, recipient_pubkey)
# nonce = secure_random_bytes(32)
# payload = encrypt('hello world', conversation_key, nonce)
# 'hello world' == decrypt(payload, conversation_key)
``` ```
### Content ### Audit
GeoJSON is used to define the Place's geospatial structure. This GeoJSON is stringified and stored in the `content` field of the event. The v2 of the standard was audited by [Cure53](https://cure53.de) in December 2023.
Check out [audit-2023.12.pdf](https://github.com/paulmillr/nip44/blob/ce63c2eaf345e9f7f93b48f829e6bdeb7e7d7964/audit-2023.12.pdf)
and [auditor's website](https://cure53.de/audit-report_nip44-implementations.pdf).
[geojson.io](https://geojson.io) is a great tool to play around with GeoJSON data structures on a map. It also validates them. ### Tests and code
The `coordinates` property of the GeoJSON object will provide the [longitude, latitude] coordinate(s) to position the Place on a map. A collection of implementations in different languages is available at https://github.com/paulmillr/nip44.
> [!IMPORTANT] We publish extensive test vectors. Instead of having it in the document directly, a sha256 checksum of vectors is provided:
> GeoJSON can contain multiple features, which means your Place may be a feature collection made up of multiple points or lines or polygons. Each feature can have its own `properties` object which may not be empty if the data is copied from somewhere else. However, the `properties` of a feature don't necessarily apply to the overall Place. Therefore, clients SHOULD NOT use the `properties` object as properties for the Place. See below for how to define properties that apply to the Place.
> If you have multiple features rich in properties, consider splitting them into separate Places.
### Prop Tags 269ed0f69e4c192512cc779e78c555090cebc7c785b609e338a62afc3ce25040 nip44.vectors.json
A Place creator can describe the properties of their Place using `prop` tags which represent `key = value` pairs. Prop tags take the following form: Example of a test vector from the file:
```json
"tags": [
["L", <namespace>]
["prop", <key>, <value>, <namespace>]
]
```
The `osm` [(Open Street Maps)](https://taginfo.openstreetmap.org/) and `schema/Place` [(schema.org/Place)](https://schema.org/Place) namespaces both provide extensive property lists that can be utilized in the prop tag for a Place. Other namespaces may be used as well. Clients can choose which keys/namespaces they support and provide auto-complete or property selection when creating a Place; they may also use the namespace as contextual information for how to interpret/display the prop.
#### Requirements
- The `"L"` tag MUST be present as specified in [NIP-32](https://github.com/nostr-protocol/nips/blob/master/32.md).
- The `key` and `value` SHOULD be defined in the referenced namespace.
- The last element in the prop tag MUST be a `namespace` defined in the `"L"` tag.
- Multiple `"prop"` tags MAY be used in a single event.
- Multiple `"L"` tags MAY be used in a single event, but each namespace MUST be referenced by at least 1 prop tag.
- `key` MUST not be empty.
- If `value` is empty, it denotes the complete removal of the property from the Place. This is NOT the same as using something like `false` as the value.
#### Using Props
Prop tags are __not__ indexed by relays. Props can be used for client-side filtering and interpretation of Places after they are queried from the relays; the `g` tag is the preferred method to query for Places in an area.
#### How to Translate Props from Various Namespaces
Some namespaces are hierarchical (including Schema) where a property may contain another collection of properties instead of a simple text value. An example of this is the `address` property of `schema/Place` which may be either text or a `schema/PostalAddress` object. If you wanted to specify individual properties of `PostalAddress`, you would do so like this:
```javascript
"tags": [
["L", "schema/PostalAddress"],
["prop", "addressCountry", "USA", "schema/PostalAddress"],
["prop", "postalCode", "90743", "schema/PostalAddress"]
]
```
As you can see, these properties don't actually belong to `schema/Place`, even though `addressCountry` and `postalCode` can technically be considered a subproperty of the `address` property of `schema/Place`. Essentially, by specifying the _specific_ namespace, all properties can be represented in a flat key=value structure. This prevents the need to store anything but strict key=value strings in a `"prop"` tag.
If a namespace has multiple levels of keys and you want to specify a lower one, you can do so like this.
Imagine a fictional namespace called `kitchen`:
> - kitchen
> - blender - brand name of blender
> - fridge
> - status - true for on, false for off
> - freezer
> - __temperature - in degrees F__
> - spaceAvailable - as a percentage of space left unused
> - toaster
> - status - true for on, false for off
> - cookTime - how long to cook in seconds
>
This is how we would specify a prop for the __temperature__ of the freezer:
> ```javascript
> "tags": [
> ["L", "kitchen/fridge/freezer"],
> ["prop", "temperature", "34", "kitchen/fridge/freezer"]
> ]
> ```
Because the `kitchen` namespace is not flat, we can traverse it with a `/` so that our prop only contains a simple key=value pair.
### Admin Tags
The Place creator can designate other pubkeys via `admin` tags. If these `admin` pubkeys publish kind `1754` events to apply properties to the Place, clients SHOULD give their props higher consideration than props applied by non-admin pubkeys.
### Other Tags
- `"d"` tag is necessary for a replaceable event if you desire to make more than one of them.
- `"g"` tag MUST be present and as accurate to the GeoJSON geometry as possible. This allows for indexed relay queries to retrieve Places in an area. Retrieving Places based on the geohash closest to the screen's viewport will be the primary method of retrieving Places from relays.
- `"expiration"` may be used for temporary Places such as marking a speed trap.
Prop Application Kind 1754
--------
A kind `1754` event MAY be used to apply props to other Places. This enables crowdsourcing of useful Place information, but clients ultimately decide how this information is used.
If a pubkey is listed in a Place's `"admin"` tag, clients SHOULD consider its `1754` events authoritative, but still subordinate to the Place's own prop tags.
### Content
The `content` field MAY include a human-readable explanation or note for the event.
### Prop Target
The prop event MUST include one or more `"a"` tags indicating
the target Places the props should be applied to.
### Examples
Crowdsourcing a prop for wheelchair accessibility to an existing Place using an OpenStreetMap (`osm`) tag:
```json ```json
{ {
"kind": 1754, "sec1": "0000000000000000000000000000000000000000000000000000000000000001",
"content": "Adding local observations regarding wheelchair accessibility at Jitter's Coffee Shop.", "sec2": "0000000000000000000000000000000000000000000000000000000000000002",
"tags": [ "conversation_key": "c41c775356fd92eadc63ff5a0dc1da211b268cbea22316767095b2871ea1412d",
["L", "osm"], "nonce": "0000000000000000000000000000000000000000000000000000000000000001",
["prop", "access:wheelchair", "yes", "osm"] "plaintext": "a",
["a", "37515:0af3b...:something unique"] "payload": "AgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABee0G5VSK0/9YypIObAtDKfYEAjD35uVkHyB0F4DwrcNaCXlCWZKaArsGrY6M9wnuTMxWfp1RTN9Xga8no+kF5Vsb"
],
} }
``` ```
Implementations The file also contains intermediate values. A quick guidance with regards to its usage:
--------
- https://go.yondar.me (work in progress) - `valid.get_conversation_key`: calculate conversation_key from secret key sec1 and public key pub2
- `valid.get_message_keys`: calculate chacha_key, chacha_nonce, hmac_key from conversation_key and nonce
Resources - `valid.calc_padded_len`: take unpadded length (first value), calculate padded length (second value)
--------- - `valid.encrypt_decrypt`: emulate real conversation. Calculate pub2 from sec2, verify conversation_key from (sec1, pub2), encrypt, verify payload, then calculate pub1 from sec1, verify conversation_key from (sec2, pub1), decrypt, verify plaintext.
- `valid.encrypt_decrypt_long_msg`: same as previous step, but instead of a full plaintext and payload, their checksum is provided.
- https://geojson.io - useful playground for creating GeoJSON - `invalid.encrypt_msg_lengths`
- https://taginfo.openstreetmap.org - find Place props used in OpenStreetMaps - `invalid.get_conversation_key`: calculating conversation_key must throw an error
- https://schema.org/Place - find Place props defined in Schema - `invalid.decrypt`: decrypting message content must throw an error
References
---------
- [NIP-32](/32.md)
- [NIP-51](/51.md)
- "NIP-85" https://github.com/nostr-protocol/nips/pull/879

276
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@ -1,162 +1,222 @@
NIP-46 # NIP-46 - Nostr Remote Signing
======
Nostr Connect
------------------------
`draft` `optional`
## Rationale ## Rationale
Private keys should be exposed to as few systems - apps, operating systems, devices - as possible as each system adds to the attack surface. Private keys should be exposed to as few systems - apps, operating systems, devices - as possible as each system adds to the attack surface.
Entering private keys can also be annoying and requires exposing them to even more systems such as the operating system's clipboard that might be monitored by malicious apps. This NIP describes a method for 2-way communication between a remote signer and a Nostr client. The remote signer could be, for example, a hardware device dedicated to signing Nostr events, while the client is a normal Nostr client.
## Terminology
## Terms - **Local keypair**: A local public and private key-pair used to encrypt content and communicate with the remote signer. Usually created by the client application.
- **Remote user pubkey**: The public key that the user wants to sign as. The remote signer has control of the private key that matches this public key.
- **Remote signer pubkey**: This is the public key of the remote signer itself. This is needed in both `create_account` command because you don't yet have a remote user pubkey.
* **App**: Nostr app on any platform that *requires* to act on behalf of a nostr account. All pubkeys specified in this NIP are in hex format.
* **Signer**: Nostr app that holds the private key of a nostr account and *can sign* on its behalf.
## Initiating a connection
## `TL;DR` To initiate a connection between a client and a remote signer there are a few different options.
### Direct connection initiated by remote signer
**App** and **Signer** sends ephemeral encrypted messages to each other using kind `24133`, using a relay of choice. This is most common in a situation where you have your own nsecbunker or other type of remote signer and want to connect through a client that supports remote signing.
App prompts the Signer to do things such as fetching the public key or signing events. The remote signer would provide a connection token in the form:
The `content` field must be an encrypted JSONRPC-ish **request** or **response**. ```
bunker://<remote-pubkey>?relay=<wss://relay-to-connect-on>&relay=<wss://another-relay-to-connect-on>&secret=<optional-secret-value>
```
## Signer Protocol This token is pasted into the client by the user and the client then uses the details to connect to the remote signer via the specified relay(s).
### Messages ### Direct connection initiated by the client
#### Request In this case, basically the opposite direction of the first case, the client provides a connection token (or encodes the token in a QR code) and the signer initiates a connection to the client via the specified relay(s).
```
nostrconnect://<local-keypair-pubkey>?relay=<wss://relay-to-connect-on>&metadata=<json metadata in the form: {"name":"...", "url": "...", "description": "..."}>
```
## The flow
1. Client creates a local keypair. This keypair doesn't need to be communicated to the user since it's largely disposable (i.e. the user doesn't need to see this pubkey). Clients might choose to store it locally and they should delete it when the user logs out.
2. Client gets the remote user pubkey (either via a `bunker://` connection string or a NIP-05 login-flow; shown below)
3. Clients use the local keypair to send requests to the remote signer by `p`-tagging and encrypting to the remote user pubkey.
4. The remote signer responds to the client by `p`-tagging and encrypting to the local keypair pubkey.
### Example flow for signing an event
- Remote user pubkey (e.g. signing as) `fa984bd7dbb282f07e16e7ae87b26a2a7b9b90b7246a44771f0cf5ae58018f52`
- Local pubkey is `eff37350d839ce3707332348af4549a96051bd695d3223af4aabce4993531d86`
#### Signature request
```json ```json
{ {
"id": <random_string>, "kind": 24133,
"method": <one_of_the_methods>, "pubkey": "eff37350d839ce3707332348af4549a96051bd695d3223af4aabce4993531d86",
"params": [<anything>, <else>] "content": nip04({
"id": <random_string>,
"method": "sign_event",
"params": [json_stringified(<{
content: "Hello, I'm signing remotely",
pubkey: "fa984bd7dbb282f07e16e7ae87b26a2a7b9b90b7246a44771f0cf5ae58018f52",
// ...the rest of the event data
}>)]
}),
"tags": [["p", "fa984bd7dbb282f07e16e7ae87b26a2a7b9b90b7246a44771f0cf5ae58018f52"]], // p-tags the remote user pubkey
} }
``` ```
#### Response #### Response event
```json ```json
{ {
"id": <request_id>, "kind": 24133,
"result": <anything>, "pubkey": "fa984bd7dbb282f07e16e7ae87b26a2a7b9b90b7246a44771f0cf5ae58018f52",
"error": <reason> "content": nip04({
"id": <random_string>,
"result": json_stringified(<signed-event>)
}),
"tags": [["p", "eff37350d839ce3707332348af4549a96051bd695d3223af4aabce4993531d86"]], // p-tags the local keypair pubkey
} }
``` ```
### Methods #### Diagram
![signing-example](https://i.nostr.build/P3gW.png)
#### Mandatory ## Request Events `kind: 24133`
These are mandatory methods the remote signer app MUST implement: ```json
{
- **describe** "id": <id>,
- params [] "kind": 24133,
- result `["describe", "get_public_key", "sign_event", "connect", "disconnect", "delegate", ...]` "pubkey": <local_keypair_pubkey>,
- **get_public_key** "content": <nip04(<request>)>,
- params [] "tags": [["p", <remote_user_pubkey>]], // NB: in the `create_account` event, the remote signer pubkey should be `p` tagged.
- result `pubkey` "created_at": <unix timestamp in seconds>
- **sign_event** }
- params [`event`]
- result `event_with_signature`
#### optional
- **connect**
- params [`pubkey`]
- **disconnect**
- params []
- **delegate**
- params [`delegatee`, `{ kind: number, since: number, until: number }`]
- result `{ from: string, to: string, cond: string, sig: string }`
- **get_relays**
- params []
- result `{ [url: string]: {read: boolean, write: boolean} }`
- **nip04_encrypt**
- params [`pubkey`, `plaintext`]
- result `nip4 ciphertext`
- **nip04_decrypt**
- params [`pubkey`, `nip4 ciphertext`]
- result [`plaintext`]
NOTICE: `pubkey` and `signature` are hex-encoded strings.
### Nostr Connect URI
**Signer** discovers **App** by scanning a QR code, clicking on a deep link or copy-pasting an URI.
The **App** generates a special URI with prefix `nostrconnect://` and base path the hex-encoded `pubkey` with the following querystring parameters **URL encoded**
- `relay` URL of the relay of choice where the **App** is connected and the **Signer** must send and listen for messages.
- `metadata` metadata JSON of the **App**
- `name` human-readable name of the **App**
- `url` (optional) URL of the website requesting the connection
- `description` (optional) description of the **App**
- `icons` (optional) array of URLs for icons of the **App**.
#### JavaScript
```js
const uri = `nostrconnect://<pubkey>?relay=${encodeURIComponent("wss://relay.damus.io")}&metadata=${encodeURIComponent(JSON.stringify({"name": "Example"}))}`
``` ```
#### Example The `content` field is a JSON-RPC-like message that is [NIP-04](https://github.com/nostr-protocol/nips/blob/master/04.md) encrypted and has the following structure:
```sh
nostrconnect://b889ff5b1513b641e2a139f661a661364979c5beee91842f8f0ef42ab558e9d4?relay=wss%3A%2F%2Frelay.damus.io&metadata=%7B%22name%22%3A%22Example%22%7D ```json
{
"id": <random_string>,
"method": <method_name>,
"params": [array_of_strings]
}
``` ```
- `id` is a random string that is a request ID. This same ID will be sent back in the response payload.
- `method` is the name of the method/command (detailed below).
- `params` is a positional array of string parameters.
### Methods/Commands
## Flows Each of the following are methods that the client sends to the remote signer.
The `content` field contains encrypted message as specified by [NIP04](https://github.com/nostr-protocol/nips/blob/master/04.md). The `kind` chosen is `24133`. | Command | Params | Result |
| ------------------------ | ------------------------------------------------- | ---------------------------------------------------------------------- |
| `connect` | `[<remote_user_pubkey>, <optional_secret>]` | "ack" |
| `sign_event` | `[<json_stringified_event_to_sign>]` | `json_stringified(<signed_event>)` |
| `ping` | `[]` | "pong" |
| `get_relays` | `[]` | `json_stringified({<relay_url>: {read: <boolean>, write: <boolean>}})` |
| `get_public_key` | `[]` | `<hex-pubkey>` |
| `nip04_encrypt` | `[<third_party_pubkey>, <plaintext_to_encrypt>]` | `<nip04_ciphertext>` |
| `nip04_decrypt` | `[<third_party_pubkey>, <nip04_ciphertext_to_decrypt>]` | `<plaintext>` |
| `nip44_encrypt` | `[<third_party_pubkey>, <plaintext_to_encrypt>]` | `<nip44_ciphertext>` |
| `nip44_decrypt` | `[<third_party_pubkey>, <nip44_ciphertext_to_decrypt>]` | `<plaintext>` |
### Connect ## Response Events `kind:24133`
1. User clicks on **"Connect"** button on a website or scan it with a QR code ```json
2. It will show an URI to open a "nostr connect" enabled **Signer** {
3. In the URI there is a pubkey of the **App** ie. `nostrconnect://<pubkey>&relay=<relay>&metadata=<metadata>` "id": <id>,
4. The **Signer** will send a message to ACK the `connect` request, along with his public key "kind": 24133,
"pubkey": <remote_signer_pubkey>,
"content": <nip04(<response>)>,
"tags": [["p", <local_keypair_pubkey>]],
"created_at": <unix timestamp in seconds>
}
```
### Disconnect (from App) The `content` field is a JSON-RPC-like message that is [NIP-04](https://github.com/nostr-protocol/nips/blob/master/04.md) encrypted and has the following structure:
1. User clicks on **"Disconnect"** button on the **App** ```json
2. The **App** will send a message to the **Signer** with a `disconnect` request {
3. The **Signer** will send a message to ACK the `disconnect` request "id": <request_id>,
"result": <results_string>,
"error": <error_string>
}
```
### Disconnect (from Signer) - `id` is the request ID that this response is for.
- `results` is a string of the result of the call (this can be either a string or a JSON stringified object)
- `error` is an error in string form.
1. User clicks on **"Disconnect"** button on the **Signer** ### Auth Challenges
2. The **Signer** will send a message to the **App** with a `disconnect` request
An Auth Challenge is a response that a remote signer can send back when it needs the user to authenticate via other means. This is currently used in the OAuth-like flow enabled by signers like [Nsecbunker](https://github.com/kind-0/nsecbunkerd/). The response `content` object will take the following form:
### Get Public Key ```json
{
"id": <request_id>,
"result": "auth_url",
"error": <URL_to_display_to_end_user>
}
```
1. The **App** will send a message to the **Signer** with a `get_public_key` request Clients should display (in a popup or new tab) the URL from the `error` field and then subscribe/listen for another response from the remote signer (reusing the same request ID). This event will be sent once the user authenticates in the other window (or will never arrive if the user doesn't authenticate). It's also possible to add a `redirect_uri` url parameter to the auth_url, which is helpful in situations when a client cannot open a new window or tab to display the auth challenge.
3. The **Signer** will send back a message with the public key as a response to the `get_public_key` request
### Sign Event #### Example event signing request with auth challenge
1. The **App** will send a message to the **Signer** with a `sign_event` request along with the **event** to be signed ![signing-example-with-auth-challenge](https://i.nostr.build/W3aj.png)
2. The **Signer** will show a popup to the user to inspect the event and sign it
3. The **Signer** will send back a message with the event including the `id` and the schnorr `signature` as a response to the `sign_event` request
### Delegate ## Remote Signer Commands
1. The **App** will send a message with metadata to the **Signer** with a `delegate` request along with the **conditions** query string and the **pubkey** of the **App** to be delegated. Remote signers might support additional commands when communicating directly with it. These commands follow the same flow as noted above, the only difference is that when the client sends a request event, the `p`-tag is the pubkey of the remote signer itself and the `content` payload is encrypted to the same remote signer pubkey.
2. The **Signer** will show a popup to the user to delegate the **App** to sign on his behalf
3. The **Signer** will send back a message with the signed [NIP-26 delegation token](https://github.com/nostr-protocol/nips/blob/master/26.md) or reject it
### Methods/Commands
Each of the following are methods that the client sends to the remote signer.
| Command | Params | Result |
| ---------------- | ------------------------------------------ | ------------------------------------ |
| `create_account` | `[<username>, <domain>, <optional_email>]` | `<newly_created_remote_user_pubkey>` |
## Appendix
### NIP-05 Login Flow
Clients might choose to present a more familiar login flow, so users can type a NIP-05 address instead of a `bunker://` string.
When the user types a NIP-05 the client:
- Queries the `/.well-known/nostr.json` file from the domain for the NIP-05 address provided to get the user's pubkey (this is the **remote user pubkey**)
- In the same `/.well-known/nostr.json` file, queries for the `nip46` key to get the relays that the remote signer will be listening on.
- Now the client has enough information to send commands to the remote signer on behalf of the user.
### OAuth-like Flow
#### Remote signer discovery via NIP-89
In this last case, most often used to fascilitate an OAuth-like signin flow, the client first looks for remote signers that have announced themselves via NIP-89 application handler events.
First the client will query for `kind: 31990` events that have a `k` tag of `24133`.
These are generally shown to a user, and once the user selects which remote signer to use and provides the remote user pubkey they want to use (via npub, pubkey, or nip-05 value), the client can initiate a connection. Note that it's on the user to select the remote signer that is actually managing the remote key that they would like to use in this case. If the remote user pubkey is managed on another remote signer, the connection will fail.
In addition, it's important that clients validate that the pubkey of the announced remote signer matches the pubkey of the `_` entry in the `/.well-known/nostr.json` file of the remote signer's announced domain.
Clients that allow users to create new accounts should also consider validating the availability of a given username in the namespace of remote signer's domain by checking the `/.well-known/nostr.json` file for existing usernames. Clients can then show users feedback in the UI before sending a `create_account` event to the remote signer and receiving an error in return. Ideally, remote signers would also respond with understandable error messages if a client tries to create an account with an existing username.
#### Example Oauth-like flow to create a new user account with Nsecbunker
Coming soon...
## References
- [NIP-04 - Encryption](https://github.com/nostr-protocol/nips/blob/master/04.md)

280
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@ -17,7 +17,7 @@ This NIP describes a way for clients to access a remote Lightning wallet through
* **wallet service**: Nostr app that typically runs on an always-on computer (eg. in the cloud or on a Raspberry Pi). This app has access to the APIs of the wallets it serves. * **wallet service**: Nostr app that typically runs on an always-on computer (eg. in the cloud or on a Raspberry Pi). This app has access to the APIs of the wallets it serves.
## Theory of Operation ## Theory of Operation
1. **Users** who which to use this NIP to send lightning payments to other nostr users must first acquire a special "connection" URI from their NIP-47 compliant wallet application. The wallet application may provide this URI using a QR screen, or a pasteable string, or some other means. 1. **Users** who wish to use this NIP to send lightning payments to other nostr users must first acquire a special "connection" URI from their NIP-47 compliant wallet application. The wallet application may provide this URI using a QR screen, or a pasteable string, or some other means.
2. The **user** should then copy this URI into their **client(s)** by pasting, or scanning the QR, etc. The **client(s)** should save this URI and use it later whenever the **user** makes a payment. The **client** should then request an `info` (13194) event from the relay(s) specified in the URI. The **wallet service** will have sent that event to those relays earlier, and the relays will hold it as a replaceable event. 2. The **user** should then copy this URI into their **client(s)** by pasting, or scanning the QR, etc. The **client(s)** should save this URI and use it later whenever the **user** makes a payment. The **client** should then request an `info` (13194) event from the relay(s) specified in the URI. The **wallet service** will have sent that event to those relays earlier, and the relays will hold it as a replaceable event.
@ -36,6 +36,7 @@ The info event should be a replaceable event that is published by the **wallet s
a plaintext string with the supported commands, space-separated, eg. `pay_invoice get_balance`. Only the `pay_invoice` command is described in this NIP, but other commands might be defined in different NIPs. a plaintext string with the supported commands, space-separated, eg. `pay_invoice get_balance`. Only the `pay_invoice` command is described in this NIP, but other commands might be defined in different NIPs.
Both the request and response events SHOULD contain one `p` tag, containing the public key of the **wallet service** if this is a request, and the public key of the **user** if this is a response. The response event SHOULD contain an `e` tag with the id of the request event it is responding to. Both the request and response events SHOULD contain one `p` tag, containing the public key of the **wallet service** if this is a request, and the public key of the **user** if this is a response. The response event SHOULD contain an `e` tag with the id of the request event it is responding to.
Optionally, a request can have an `expiration` tag that has a unix timestamp in seconds. If the request is received after this timestamp, it should be ignored.
The content of requests and responses is encrypted with [NIP04](https://github.com/nostr-protocol/nips/blob/master/04.md), and is a JSON-RPCish object with a semi-fixed structure: The content of requests and responses is encrypted with [NIP04](https://github.com/nostr-protocol/nips/blob/master/04.md), and is a JSON-RPCish object with a semi-fixed structure:
@ -108,7 +109,8 @@ Request:
{ {
"method": "pay_invoice", "method": "pay_invoice",
"params": { "params": {
"invoice": "lnbc50n1..." // bolt11 invoice "invoice": "lnbc50n1...", // bolt11 invoice
"amount": 123, // invoice amount in msats, optional
} }
} }
``` ```
@ -117,7 +119,7 @@ Response:
```jsonc ```jsonc
{ {
"result_type": "pay_invoice", "result_type": "pay_invoice",
"result": { "result": {
"preimage": "0123456789abcdef..." // preimage of the payment "preimage": "0123456789abcdef..." // preimage of the payment
} }
} }
@ -126,6 +128,278 @@ Response:
Errors: Errors:
- `PAYMENT_FAILED`: The payment failed. This may be due to a timeout, exhausting all routes, insufficient capacity or similar. - `PAYMENT_FAILED`: The payment failed. This may be due to a timeout, exhausting all routes, insufficient capacity or similar.
### `multi_pay_invoice`
Description: Requests payment of multiple invoices.
Request:
```jsonc
{
"method": "multi_pay_invoice",
"params": {
"invoices": [
{"id":"4da52c32a1", "invoice": "lnbc1...", "amount": 123}, // bolt11 invoice and amount in msats, amount is optional
{"id":"3da52c32a1", "invoice": "lnbc50n1..."},
],
}
}
```
Response:
For every invoice in the request, a separate response event is sent. To differentiate between the responses, each
response event contains an `d` tag with the id of the invoice it is responding to, if no id was given, then the
payment hash of the invoice should be used.
```jsonc
{
"result_type": "multi_pay_invoice",
"result": {
"preimage": "0123456789abcdef..." // preimage of the payment
}
}
```
Errors:
- `PAYMENT_FAILED`: The payment failed. This may be due to a timeout, exhausting all routes, insufficient capacity or similar.
### `pay_keysend`
Request:
```jsonc
{
"method": "pay_keysend",
"params": {
"amount": 123, // invoice amount in msats, required
"pubkey": "03...", // payee pubkey, required
"preimage": "0123456789abcdef...", // preimage of the payment, optional
"tlv_records: [ // tlv records, optional
{
"type": 5482373484, // tlv type
"value": "0123456789abcdef" // hex encoded tlv value
}
]
}
}
```
Response:
```jsonc
{
"result_type": "pay_keysend",
"result": {
"preimage": "0123456789abcdef...", // preimage of the payment
}
}
```
Errors:
- `PAYMENT_FAILED`: The payment failed. This may be due to a timeout, exhausting all routes, insufficient capacity or similar.
### `multi_pay_keysend`
Description: Requests multiple keysend payments.
Has an array of keysends, these follow the same semantics as `pay_keysend`, just done in a batch
Request:
```jsonc
{
"method": "multi_pay_keysend",
"params": {
"keysends": [
{"id": "4c5b24a351", pubkey": "03...", "amount": 123},
{"id": "3da52c32a1", "pubkey": "02...", "amount": 567, "preimage": "abc123..", "tlv_records": [{"type": 696969, "value": "77616c5f6872444873305242454d353736"}]},
],
}
}
```
Response:
For every keysend in the request, a separate response event is sent. To differentiate between the responses, each
response event contains an `d` tag with the id of the keysend it is responding to, if no id was given, then the
pubkey should be used.
```jsonc
{
"result_type": "multi_pay_keysend",
"result": {
"preimage": "0123456789abcdef..." // preimage of the payment
}
}
```
Errors:
- `PAYMENT_FAILED`: The payment failed. This may be due to a timeout, exhausting all routes, insufficient capacity or similar.
### `make_invoice`
Request:
```jsonc
{
"method": "make_invoice",
"params": {
"amount": 123, // value in msats
"description": "string", // invoice's description, optional
"description_hash": "string", // invoice's description hash, optional
"expiry": 213 // expiry in seconds from time invoice is created, optional
}
}
```
Response:
```jsonc
{
"result_type": "make_invoice",
"result": {
"type": "incoming", // "incoming" for invoices, "outgoing" for payments
"invoice": "string", // encoded invoice, optional
"description": "string", // invoice's description, optional
"description_hash": "string", // invoice's description hash, optional
"preimage": "string", // payment's preimage, optional if unpaid
"payment_hash": "string", // Payment hash for the payment
"amount": 123, // value in msats
"fees_paid": 123, // value in msats
"created_at": unixtimestamp, // invoice/payment creation time
"expires_at": unixtimestamp, // invoice expiration time, optional if not applicable
"metadata": {} // generic metadata that can be used to add things like zap/boostagram details for a payer name/comment/etc.
}
}
```
### `lookup_invoice`
Request:
```jsonc
{
"method": "lookup_invoice",
"params": {
"payment_hash": "31afdf1..", // payment hash of the invoice, one of payment_hash or invoice is required
"invoice": "lnbc50n1..." // invoice to lookup
}
}
```
Response:
```jsonc
{
"result_type": "lookup_invoice",
"result": {
"type": "incoming", // "incoming" for invoices, "outgoing" for payments
"invoice": "string", // encoded invoice, optional
"description": "string", // invoice's description, optional
"description_hash": "string", // invoice's description hash, optional
"preimage": "string", // payment's preimage, optional if unpaid
"payment_hash": "string", // Payment hash for the payment
"amount": 123, // value in msats
"fees_paid": 123, // value in msats
"created_at": unixtimestamp, // invoice/payment creation time
"expires_at": unixtimestamp, // invoice expiration time, optional if not applicable
"settled_at": unixtimestamp, // invoice/payment settlement time, optional if unpaid
"metadata": {} // generic metadata that can be used to add things like zap/boostagram details for a payer name/comment/etc.
}
}
```
Errors:
- `NOT_FOUND`: The invoice could not be found by the given parameters.
### `list_transactions`
Lists invoices and payments. If `type` is not specified, both invoices and payments are returned.
The `from` and `until` parameters are timestamps in seconds since epoch. If `from` is not specified, it defaults to 0.
If `until` is not specified, it defaults to the current time. Transactions are returned in descending order of creation
time.
Request:
```jsonc
{
"method": "list_transactions",
"params": {
"from": 1693876973, // starting timestamp in seconds since epoch (inclusive), optional
"until": 1703225078, // ending timestamp in seconds since epoch (inclusive), optional
"limit": 10, // maximum number of invoices to return, optional
"offset": 0, // offset of the first invoice to return, optional
"unpaid": true, // include unpaid invoices, optional, default false
"type": "incoming", // "incoming" for invoices, "outgoing" for payments, undefined for both
}
}
```
Response:
```jsonc
{
"result_type": "list_transactions",
"result": {
"transactions": [
{
"type": "incoming", // "incoming" for invoices, "outgoing" for payments
"invoice": "string", // encoded invoice, optional
"description": "string", // invoice's description, optional
"description_hash": "string", // invoice's description hash, optional
"preimage": "string", // payment's preimage, optional if unpaid
"payment_hash": "string", // Payment hash for the payment
"amount": 123, // value in msats
"fees_paid": 123, // value in msats
"created_at": unixtimestamp, // invoice/payment creation time
"expires_at": unixtimestamp, // invoice expiration time, optional if not applicable
"settled_at": unixtimestamp, // invoice/payment settlement time, optional if unpaid
"metadata": {} // generic metadata that can be used to add things like zap/boostagram details for a payer name/comment/etc.
}
],
},
}
```
### `get_balance`
Request:
```jsonc
{
"method": "get_balance",
"params": {
}
}
```
Response:
```jsonc
{
"result_type": "get_balance",
"result": {
"balance": 10000, // user's balance in msats
}
}
```
### `get_info`
Request:
```jsonc
{
"method": "get_info",
"params": {
}
}
```
Response:
```jsonc
{
"result_type": "get_info",
"result": {
"alias": "string",
"color": "hex string",
"pubkey": "hex string",
"network": "string", // mainnet, testnet, signet, or regtest
"block_height": 1,
"block_hash": "hex string",
"methods": ["pay_invoice", "get_balance", "make_invoice", "lookup_invoice", "list_transactions", "get_info"], // list of supported methods for this connection
}
}
```
## Example pay invoice flow ## Example pay invoice flow
0. The user scans the QR code generated by the **wallet service** with their **client** application, they follow a `nostr+walletconnect:` deeplink or configure the connection details manually. 0. The user scans the QR code generated by the **wallet service** with their **client** application, they follow a `nostr+walletconnect:` deeplink or configure the connection details manually.

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@ -0,0 +1,126 @@
NIP-49
======
Private Key Encryption
----------------------
`draft` `optional`
This NIP defines a method by which clients can encrypt (and decrypt) a user's private key with a password.
Symmetric Encryption Key derivation
-----------------------------------
PASSWORD = Read from the user. The password should be unicode normalized to NFKC format to ensure that the password can be entered identically on other computers/clients.
LOG\_N = Let the user or implementer choose one byte representing a power of 2 (e.g. 18 represents 262,144) which is used as the number of rounds for scrypt. Larger numbers take more time and more memory, and offer better protection:
| LOG_N | MEMORY REQUIRED | APPROX TIME ON FAST COMPUTER |
|-------|-----------------|----------------------------- |
| 16 | 64 MiB | 100 ms |
| 18 | 256 MiB | |
| 20 | 1 GiB | 2 seconds |
| 21 | 2 GiB | |
| 22 | 4 GiB | |
SALT = 16 random bytes
SYMMETRIC_KEY = scrypt(password=PASSWORD, salt=SALT, log\_n=LOG\_N, r=8, p=1)
The symmetric key should be 32 bytes long.
This symmetric encryption key is temporary and should be zeroed and discarded after use and not stored or reused for any other purpose.
Encrypting a private key
------------------------
The private key encryption process is as follows:
PRIVATE\_KEY = User's private (secret) secp256k1 key as 32 raw bytes (not hex or bech32 encoded!)
KEY\_SECURITY\_BYTE = one of:
* 0x00 - if the key has been known to have been handled insecurely (stored unencrypted, cut and paste unencrypted, etc)
* 0x01 - if the key has NOT been known to have been handled insecurely (stored unencrypted, cut and paste unencrypted, etc)
* 0x02 - if the client does not track this data
ASSOCIATED\_DATA = KEY\_SECURITY\_BYTE
NONCE = 24 byte random nonce
CIPHERTEXT = XChaCha20-Poly1305(
plaintext=PRIVATE\_KEY,
associated_data=ASSOCIATED\_DATA,
nonce=NONCE,
key=SYMMETRIC\_KEY
)
VERSION\_NUMBER = 0x02
CIPHERTEXT_CONCATENATION = concat(
VERSION\_NUMBER,
LOG\_N,
SALT,
NONCE,
ASSOCIATED\_DATA,
CIPHERTEXT
)
ENCRYPTED\_PRIVATE\_KEY = bech32_encode('ncryptsec', CIPHERTEXT\_CONCATENATION)
The output prior to bech32 encoding should be 91 bytes long.
The decryption process operates in the reverse.
Test Data
---------
## Password Unicode Normalization
The following password input: "ÅΩẛ̣"
- Unicode Codepoints: U+212B U+2126 U+1E9B U+0323
- UTF-8 bytes: [0xE2, 0x84, 0xAB, 0xE2, 0x84, 0xA6, 0xE1, 0xBA, 0x9B, 0xCC, 0xA3]
Should be converted into the unicode normalized NFKC format prior to use in scrypt: "ÅΩẛ̣"
- Unicode Codepoints: U+00C5 U+03A9 U+1E69
- UTF-8 bytes: [0xC3, 0x85, 0xCE, 0xA9, 0xE1, 0xB9, 0xA9]
## Encryption
The encryption process is non-deterministic due to the random nonce.
## Decryption
The following encrypted private key:
`ncryptsec1qgg9947rlpvqu76pj5ecreduf9jxhselq2nae2kghhvd5g7dgjtcxfqtd67p9m0w57lspw8gsq6yphnm8623nsl8xn9j4jdzz84zm3frztj3z7s35vpzmqf6ksu8r89qk5z2zxfmu5gv8th8wclt0h4p`
When decrypted with password='nostr' and log_n=16 yields the following hex-encoded private key:
`3501454135014541350145413501453fefb02227e449e57cf4d3a3ce05378683`
Discussion
----------
### On Key Derivation
Passwords make poor cryptographic keys. Prior to use as a cryptographic key, two things need to happen:
1. An encryption key needs to be deterministically created from the password such that is has a uniform functionally random distribution of bits, such that the symmetric encryption algorithm's assumptions are valid, and
2. A slow irreversible algorithm should be injected into the process, so that brute-force attempts to decrypt by trying many passwords are severely hampered.
These are achieved using a password-based key derivation function. We use scrypt, which has been proven to be maximally memory hard and which several cryptographers have indicated to the author is better than argon2 even though argon2 won a competition in 2015.
### On the symmetric encryption algorithm
XChaCha20-Poly1305 is typically favored by cryptographers over AES and is less associated with the U.S. government. It (or it's earlier variant without the 'X') is gaining wide usage, is used in TLS and OpenSSH, and is available in most modern crypto libraries.
Recommendations
---------
It is not recommended that users publish these encrypted private keys to nostr, as cracking a key may become easier when an attacker can amass many encrypted private keys.
It is recommended that clients zero out the memory of passwords and private keys before freeing that memory.

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@ -41,7 +41,7 @@ implementation details between relays.
Clients MAY verify that events returned by a relay match the specified query in a way that suits the Clients MAY verify that events returned by a relay match the specified query in a way that suits the
client's use case, and MAY stop querying relays that have low precision. client's use case, and MAY stop querying relays that have low precision.
Relays SHOULD exclude spam from search results by default if they supports some form of spam filtering. Relays SHOULD exclude spam from search results by default if they support some form of spam filtering.
## Extensions ## Extensions

41
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@ -10,24 +10,27 @@ This NIP defines lists of things that users can create. Lists can contain refere
Public items in a list are specified in the event `tags` array, while private items are specified in a JSON array that mimics the structure of the event `tags` array, but stringified and encrypted using the same scheme from [NIP-04](04.md) (the shared key is computed using the author's public and private key) and stored in the `.content`. Public items in a list are specified in the event `tags` array, while private items are specified in a JSON array that mimics the structure of the event `tags` array, but stringified and encrypted using the same scheme from [NIP-04](04.md) (the shared key is computed using the author's public and private key) and stored in the `.content`.
When new items are added to an existing list, clients SHOULD append them to the end of the list, so they are stored in chronological order.
## Types of lists ## Types of lists
## Standard lists ## Standard lists
Standard lists use non-parameterized replaceable events, meaning users may only have a single list of each kind. They have special meaning and clients may rely on them to augment a user's profile or browsing experience. Standard lists use non-parameterized replaceable events, meaning users may only have a single list of each kind. They have special meaning and clients may rely on them to augment a user's profile or browsing experience.
For example, _mute lists_ can contain the public keys of spammers and bad actors users don't want to see in their feeds or receive annoying notifications from. For example, _mute list_ can contain the public keys of spammers and bad actors users don't want to see in their feeds or receive annoying notifications from.
| name | kind | description | expected tag items | | name | kind | description | expected tag items |
| --- | --- | --- | --- | | --- | --- | --- | --- |
| Mute list | 10000 | things the user doesn't want to see in their feeds | `"p"` (pubkeys), `"t"` (hashtags), `"word"` (lowercase string), `"e"` (threads) | | Mute list | 10000 | things the user doesn't want to see in their feeds | `"p"` (pubkeys), `"t"` (hashtags), `"word"` (lowercase string), `"e"` (threads) |
| Pinned notes | 10001 | events the user intends to showcase in their profile page | `"e"` (kind:1 notes) | | Pinned notes | 10001 | events the user intends to showcase in their profile page | `"e"` (kind:1 notes) |
| Bookmarks | 10003 | uncategorized, "global" list of things a user wants to save | `"e"` (kind:1 notes), `"a"` (kind:30023 articles), `"t"` (hashtags), `"r" (URLs)` | | Bookmarks | 10003 | uncategorized, "global" list of things a user wants to save | `"e"` (kind:1 notes), `"a"` (kind:30023 articles), `"t"` (hashtags), `"r"` (URLs) |
| Communities | 10004 | [NIP-72](72.md) communities the user belongs to | `"a"` (kind:34550 community definitions) | | Communities | 10004 | [NIP-72](72.md) communities the user belongs to | `"a"` (kind:34550 community definitions) |
| Public chats | 10005 | [NIP-28](28.md) chat channels the user is in | `"e"` (kind:40 channel definitions) | | Public chats | 10005 | [NIP-28](28.md) chat channels the user is in | `"e"` (kind:40 channel definitions) |
| Blocked relays | 10006 | relays clients should never connect to | `"relay"` (relay URLs) | | Blocked relays | 10006 | relays clients should never connect to | `"relay"` (relay URLs) |
| Search relays | 10007 | relays clients should use when performing search queries | `"relay"` (relay URLs) | | Search relays | 10007 | relays clients should use when performing search queries | `"relay"` (relay URLs) |
| Interests | 10015 | topics a user may be interested in and pointers | `"t"` (hashtags) and `"a" (kind:30015 interest set)` | | Simple groups | 10009 | [NIP-29](29.md) groups the user is in | `"group"` ([NIP-29](29.md) group ids + mandatory relay URL) |
| Interests | 10015 | topics a user may be interested in and pointers | `"t"` (hashtags) and `"a"` (kind:30015 interest set) |
| Emojis | 10030 | user preferred emojis and pointers to emoji sets | `"emoji"` (see [NIP-30](30.md)) and `"a"` (kind:30030 emoji set) | | Emojis | 10030 | user preferred emojis and pointers to emoji sets | `"emoji"` (see [NIP-30](30.md)) and `"a"` (kind:30030 emoji set) |
## Sets ## Sets
@ -42,11 +45,13 @@ Aside from their main identifier, the `"d"` tag, sets can optionally have a `"ti
| --- | --- | --- | --- | | --- | --- | --- | --- |
| Follow sets | 30000 | categorized groups of users a client may choose to check out in different circumstances | `"p"` (pubkeys) | | Follow sets | 30000 | categorized groups of users a client may choose to check out in different circumstances | `"p"` (pubkeys) |
| Relay sets | 30002 | user-defined relay groups the user can easily pick and choose from during various operations | `"relay"` (relay URLs) | | Relay sets | 30002 | user-defined relay groups the user can easily pick and choose from during various operations | `"relay"` (relay URLs) |
| Bookmark sets | 30003 | user-defined bookmarks categories , for when bookmarks must be in labeled separate groups | `"e"` (kind:1 notes), `"a"` (kind:30023 articles), `"t"` (hashtags), `"r" (URLs)` | | Bookmark sets | 30003 | user-defined bookmarks categories , for when bookmarks must be in labeled separate groups | `"e"` (kind:1 notes), `"a"` (kind:30023 articles), `"t"` (hashtags), `"r"` (URLs) |
| Curation sets | 30004 | groups of articles picked by users as interesting and/or belonging to the same category | `"a"` (kind:30023 articles), `"e"` (kind:1 notes) | | Curation sets | 30004 | groups of articles picked by users as interesting and/or belonging to the same category | `"a"` (kind:30023 articles), `"e"` (kind:1 notes) |
| Curation sets | 30005 | groups of videos picked by users as interesting and/or belonging to the same category | `"a"` (kind:34235 videos) |
| Worlds | 30007 | groups of Places | `"a"` (kind:37515 Places) | | Worlds | 30007 | groups of Places | `"a"` (kind:37515 Places) |
| Interest sets | 30015 | interest topics represented by a bunch of "hashtags" | `"t"` (hashtags) | | Interest sets | 30015 | interest topics represented by a bunch of "hashtags" | `"t"` (hashtags) |
| Emoji sets | 30030 | categorized emoji groups | `"emoji"` (see [NIP-30](30.md)) | | Emoji sets | 30030 | categorized emoji groups | `"emoji"` (see [NIP-30](30.md)) |
| Release artifact sets | 30063 | groups of files of a software release | `"e"` (kind:1063 [file metadata](94.md) events), `"i"` (application identifier, typically reverse domain notation), `"version"` |
## Deprecated standard lists ## Deprecated standard lists
@ -80,7 +85,7 @@ Some clients have used these lists in the past, but they should work on transiti
### A _curation set_ of articles and notes about yaks ### A _curation set_ of articles and notes about yaks
``` ```json
{ {
"id": "567b41fc9060c758c4216fe5f8d3df7c57daad7ae757fa4606f0c39d4dd220ef", "id": "567b41fc9060c758c4216fe5f8d3df7c57daad7ae757fa4606f0c39d4dd220ef",
"pubkey": "d6dc95542e18b8b7aec2f14610f55c335abebec76f3db9e58c254661d0593a0c", "pubkey": "d6dc95542e18b8b7aec2f14610f55c335abebec76f3db9e58c254661d0593a0c",
@ -101,6 +106,30 @@ Some clients have used these lists in the past, but they should work on transiti
} }
``` ```
### A _release artifact set_ of an Example App
```json
{
"id": "567b41fc9060c758c4216fe5f8d3df7c57daad7ae757fa4606f0c39d4dd220ef",
"pubkey": "d6dc95542e18b8b7aec2f14610f55c335abebec76f3db9e58c254661d0593a0c",
"created_at": 1695327657,
"kind": 30063,
"tags": [
["d", "ak8dy3v7"],
["i", "com.example.app"],
["version", "0.0.1"],
["title", "Example App"],
["image", "http://cdn.site/p/com.example.app/icon.png"],
["e", "d78ba0d5dce22bfff9db0a9e996c9ef27e2c91051de0c4e1da340e0326b4941e"], // Windows exe
["e", "f27e2c91051de0c4e1da0d5dce22bfff9db0a9340e0326b4941ed78bae996c9e"], // MacOS dmg
["e", "9d24ddfab95ba3ff7c03fbd07ad011fff245abea431fb4d3787c2d04aad02332"], // Linux AppImage
["e", "340e0326b340e0326b4941ed78ba340e0326b4941ed78ba340e0326b49ed78ba"] // PWA
],
"content": "Example App is a decentralized marketplace for apps",
"sig": "a9a4e2192eede77e6c9d24ddfab95ba3ff7c03fbd07ad011fff245abea431fb4d3787c2d04aad001cb039cb8de91d83ce30e9a94f82ac3c5a2372aa1294a96bd"
}
```
## Encryption process pseudocode ## Encryption process pseudocode
```scala ```scala

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@ -22,20 +22,23 @@ This kind of calendar event starts on a date and ends before a different date in
The format uses a parameterized replaceable event kind `31922`. The format uses a parameterized replaceable event kind `31922`.
The `.content` of these events is optional and should be a detailed description of the calendar event. The `.content` of these events should be a detailed description of the calendar event. It is required but can be an empty string.
The list of tags are as follows: The list of tags are as follows:
* `d` (required) universally unique identifier (UUID). Generated by the client creating the calendar event. * `d` (required) universally unique identifier (UUID). Generated by the client creating the calendar event.
* `name` (required) name of the calendar event * `title` (required) title of the calendar event
* `start` (required) inclusive start date in ISO 8601 format (YYYY-MM-DD). Must be less than `end`, if it exists. * `start` (required) inclusive start date in ISO 8601 format (YYYY-MM-DD). Must be less than `end`, if it exists.
* `end` (optional) exclusive end date in ISO 8601 format (YYYY-MM-DD). If omitted, the calendar event ends on the same date as `start`. * `end` (optional) exclusive end date in ISO 8601 format (YYYY-MM-DD). If omitted, the calendar event ends on the same date as `start`.
* `location` (optional) location of the calendar event. e.g. address, GPS coordinates, meeting room name, link to video call * `location` (optional, repeated) location of the calendar event. e.g. address, GPS coordinates, meeting room name, link to video call
* `g` (optional) [geohash](https://en.wikipedia.org/wiki/Geohash) to associate calendar event with a searchable physical location * `g` (optional) [geohash](https://en.wikipedia.org/wiki/Geohash) to associate calendar event with a searchable physical location
* `p` (optional, repeated) 32-bytes hex pubkey of a participant, optional recommended relay URL, and participant's role in the meeting * `p` (optional, repeated) 32-bytes hex pubkey of a participant, optional recommended relay URL, and participant's role in the meeting
* `t` (optional, repeated) hashtag to categorize calendar event * `t` (optional, repeated) hashtag to categorize calendar event
* `r` (optional, repeated) references / links to web pages, documents, video calls, recorded videos, etc. * `r` (optional, repeated) references / links to web pages, documents, video calls, recorded videos, etc.
```json The following tags are deprecated:
* `name` name of the calendar event. Use only if `title` is not available.
```jsonc
{ {
"id": <32-bytes lowercase hex-encoded SHA-256 of the the serialized event data>, "id": <32-bytes lowercase hex-encoded SHA-256 of the the serialized event data>,
"pubkey": <32-bytes lowercase hex-encoded public key of the event creator>, "pubkey": <32-bytes lowercase hex-encoded public key of the event creator>,
@ -45,7 +48,7 @@ The list of tags are as follows:
"tags": [ "tags": [
["d", "<UUID>"], ["d", "<UUID>"],
["name", "<name of calendar event>"], ["title", "<title of calendar event>"],
// Dates // Dates
["start", "<YYYY-MM-DD>"], ["start", "<YYYY-MM-DD>"],
@ -78,22 +81,25 @@ This kind of calendar event spans between a start time and end time.
The format uses a parameterized replaceable event kind `31923`. The format uses a parameterized replaceable event kind `31923`.
The `.content` of these events is optional and should be a detailed description of the calendar event. The `.content` of these events should be a detailed description of the calendar event. It is required but can be an empty string.
The list of tags are as follows: The list of tags are as follows:
* `d` (required) universally unique identifier (UUID). Generated by the client creating the calendar event. * `d` (required) universally unique identifier (UUID). Generated by the client creating the calendar event.
* `name` (required) name of the calendar event * `title` (required) title of the calendar event
* `start` (required) inclusive start Unix timestamp in seconds. Must be less than `end`, if it exists. * `start` (required) inclusive start Unix timestamp in seconds. Must be less than `end`, if it exists.
* `end` (optional) exclusive end Unix timestamp in seconds. If omitted, the calendar event ends instantaneously. * `end` (optional) exclusive end Unix timestamp in seconds. If omitted, the calendar event ends instantaneously.
* `start_tzid` (optional) time zone of the start timestamp, as defined by the IANA Time Zone Database. e.g., `America/Costa_Rica` * `start_tzid` (optional) time zone of the start timestamp, as defined by the IANA Time Zone Database. e.g., `America/Costa_Rica`
* `end_tzid` (optional) time zone of the end timestamp, as defined by the IANA Time Zone Database. e.g., `America/Costa_Rica`. If omitted and `start_tzid` is provided, the time zone of the end timestamp is the same as the start timestamp. * `end_tzid` (optional) time zone of the end timestamp, as defined by the IANA Time Zone Database. e.g., `America/Costa_Rica`. If omitted and `start_tzid` is provided, the time zone of the end timestamp is the same as the start timestamp.
* `location` (optional) location of the calendar event. e.g. address, GPS coordinates, meeting room name, link to video call * `location` (optional, repeated) location of the calendar event. e.g. address, GPS coordinates, meeting room name, link to video call
* `g` (optional) [geohash](https://en.wikipedia.org/wiki/Geohash) to associate calendar event with a searchable physical location * `g` (optional) [geohash](https://en.wikipedia.org/wiki/Geohash) to associate calendar event with a searchable physical location
* `p` (optional, repeated) 32-bytes hex pubkey of a participant, optional recommended relay URL, and participant's role in the meeting * `p` (optional, repeated) 32-bytes hex pubkey of a participant, optional recommended relay URL, and participant's role in the meeting
* `t` (optional, repeated) hashtag to categorize calendar event * `t` (optional, repeated) hashtag to categorize calendar event
* `r` (optional, repeated) references / links to web pages, documents, video calls, recorded videos, etc. * `r` (optional, repeated) references / links to web pages, documents, video calls, recorded videos, etc.
```json The following tags are deprecated:
* `name` name of the calendar event. Use only if `title` is not available.
```jsonc
{ {
"id": <32-bytes lowercase hex-encoded SHA-256 of the the serialized event data>, "id": <32-bytes lowercase hex-encoded SHA-256 of the the serialized event data>,
"pubkey": <32-bytes lowercase hex-encoded public key of the event creator>, "pubkey": <32-bytes lowercase hex-encoded public key of the event creator>,
@ -103,7 +109,7 @@ The list of tags are as follows:
"tags": [ "tags": [
["d", "<UUID>"], ["d", "<UUID>"],
["name", "<name of calendar event>"], ["title", "<title of calendar event>"],
// Timestamps // Timestamps
["start", "<Unix timestamp in seconds>"], ["start", "<Unix timestamp in seconds>"],
@ -137,15 +143,23 @@ A calendar is a collection of calendar events, represented as a custom replaceab
### Format ### Format
The `.content` of these events should be a detailed description of the calendar. It is required but can be an empty string.
The format uses a custom replaceable list of kind `31924` with a list of tags as described below: The format uses a custom replaceable list of kind `31924` with a list of tags as described below:
* `d` (required) calendar name * `d` (required) universally unique identifier. Generated by the client creating the calendar.
* `title` (required) calendar title
* `a` (repeated) reference tag to kind `31922` or `31923` calendar event being responded to * `a` (repeated) reference tag to kind `31922` or `31923` calendar event being responded to
```json ```json
{ {
"id": <32-bytes lowercase hex-encoded SHA-256 of the the serialized event data>,
"pubkey": <32-bytes lowercase hex-encoded public key of the event creator>,
"created_at": <Unix timestamp in seconds>,
"kind": 31924, "kind": 31924,
"content": "<description of calendar>",
"tags": [ "tags": [
["d", "<calendar name>"], ["d", "<UUID>"],
["title", "<calendar title>"],
["a", "<31922 or 31923>:<calendar event author pubkey>:<d-identifier of calendar event>", "<optional relay url>"], ["a", "<31922 or 31923>:<calendar event author pubkey>:<d-identifier of calendar event>", "<optional relay url>"],
["a", "<31922 or 31923>:<calendar event author pubkey>:<d-identifier of calendar event>", "<optional relay url>"] ["a", "<31922 or 31923>:<calendar event author pubkey>:<d-identifier of calendar event>", "<optional relay url>"]
] ]
@ -173,10 +187,8 @@ The `.content` of these events is optional and should be a free-form note that a
The list of tags are as follows: The list of tags are as follows:
* `a` (required) reference tag to kind `31922` or `31923` calendar event being responded to. * `a` (required) reference tag to kind `31922` or `31923` calendar event being responded to.
* `d` (required) universally unique identifier. Generated by the client creating the calendar event RSVP. * `d` (required) universally unique identifier. Generated by the client creating the calendar event RSVP.
* `L` (required) label namespace of `status` per [NIP-32](32.md) * `status` (required) `accepted`, `declined`, or `tentative`. Determines attendance status to the referenced calendar event.
* `l` (required) label of `accepted`, `declined`, or `tentative` under the label namespace of `status` per [NIP-32](32.md). Determines attendance status to the referenced calendar event. * `fb` (optional) `free` or `busy`. Determines if the user would be free or busy for the duration of the calendar event. This tag must be omitted or ignored if the `status` label is set to `declined`.
* `L` (optional) label namespace of `freebusy` per [NIP-32](32.md). Exists if and only if corresponding `l` tag under the same label namespace exists.
* `l` (optional) label of `free` or `busy` under the label namespace of `freebusy` per [NIP-32](32.md). Determines if the user would be free or busy for the duration of the calendar event. This tag must be omitted or ignored if the `status` label is set to `declined`. Exists if and only if corresponding `l` tag under the same label namespace exists.
```json ```json
{ {
@ -188,10 +200,8 @@ The list of tags are as follows:
"tags": [ "tags": [
["a", "<31922 or 31923>:<calendar event author pubkey>:<d-identifier of calendar event>", "<optional relay url>"], ["a", "<31922 or 31923>:<calendar event author pubkey>:<d-identifier of calendar event>", "<optional relay url>"],
["d", "<UUID>"], ["d", "<UUID>"],
["L", "status"], ["status", "<accepted/declined/tentative>"],
["l", "<accepted/declined/tentative>", "status"], ["fb", "<free/busy>"],
["L", "freebusy"],
["l", "<free/busy>", "freebusy"]
] ]
} }
``` ```

2
53.md
View File

@ -94,7 +94,7 @@ Common use cases include meeting rooms/workshops, watch-together activities, or
["title", "Adult Swim Metalocalypse"], ["title", "Adult Swim Metalocalypse"],
["summary", "Live stream from IPTV-ORG collection"], ["summary", "Live stream from IPTV-ORG collection"],
["streaming", "https://adultswim-vodlive.cdn.turner.com/live/metalocalypse/stream.m3u8"], ["streaming", "https://adultswim-vodlive.cdn.turner.com/live/metalocalypse/stream.m3u8"],
["starts", "1687182672"] ["starts", "1687182672"],
["status", "live"], ["status", "live"],
["t", "animation"], ["t", "animation"],
["t", "iptv"], ["t", "iptv"],

7
57.md
View File

@ -111,6 +111,7 @@ When a client sends a `zap request` event to a server's lnurl-pay callback URL,
5. There should be a `relays` tag with the relays to send the `zap receipt` to. 5. There should be a `relays` tag with the relays to send the `zap receipt` to.
6. If there is an `amount` tag, it MUST be equal to the `amount` query parameter. 6. If there is an `amount` tag, it MUST be equal to the `amount` query parameter.
7. If there is an `a` tag, it MUST be a valid event coordinate 7. If there is an `a` tag, it MUST be a valid event coordinate
8. There MUST be 0 or 1 `P` tags. If there is one, it MUST be equal to the `zap receipt`'s `pubkey`.
The event MUST then be stored for use later, when the invoice is paid. The event MUST then be stored for use later, when the invoice is paid.
@ -128,7 +129,7 @@ The following should be true of the `zap receipt` event:
- The `content` SHOULD be empty. - The `content` SHOULD be empty.
- The `created_at` date SHOULD be set to the invoice `paid_at` date for idempotency. - The `created_at` date SHOULD be set to the invoice `paid_at` date for idempotency.
- `tags` MUST include the `p` tag AND optional `e` tag from the `zap request` AND optional `a` tag from the `zap request`. - `tags` MUST include the `p` tag (zap recipient) AND optional `e` tag from the `zap request` AND optional `a` tag from the `zap request` AND optional `P` tag from the pubkey of the zap request (zap sender).
- The `zap receipt` MUST have a `bolt11` tag containing the description hash bolt11 invoice. - The `zap receipt` MUST have a `bolt11` tag containing the description hash bolt11 invoice.
- The `zap receipt` MUST contain a `description` tag which is the JSON-encoded invoice description. - The `zap receipt` MUST contain a `description` tag which is the JSON-encoded invoice description.
- `SHA256(description)` MUST match the description hash in the bolt11 invoice. - `SHA256(description)` MUST match the description hash in the bolt11 invoice.
@ -148,13 +149,13 @@ Example `zap receipt`:
"kind": 9735, "kind": 9735,
"tags": [ "tags": [
["p", "32e1827635450ebb3c5a7d12c1f8e7b2b514439ac10a67eef3d9fd9c5c68e245"], ["p", "32e1827635450ebb3c5a7d12c1f8e7b2b514439ac10a67eef3d9fd9c5c68e245"],
["P", "97c70a44366a6535c145b333f973ea86dfdc2d7a99da618c40c64705ad98e322"],
["e", "3624762a1274dd9636e0c552b53086d70bc88c165bc4dc0f9e836a1eaf86c3b8"], ["e", "3624762a1274dd9636e0c552b53086d70bc88c165bc4dc0f9e836a1eaf86c3b8"],
["bolt11", "lnbc10u1p3unwfusp5t9r3yymhpfqculx78u027lxspgxcr2n2987mx2j55nnfs95nxnzqpp5jmrh92pfld78spqs78v9euf2385t83uvpwk9ldrlvf6ch7tpascqhp5zvkrmemgth3tufcvflmzjzfvjt023nazlhljz2n9hattj4f8jq8qxqyjw5qcqpjrzjqtc4fc44feggv7065fqe5m4ytjarg3repr5j9el35xhmtfexc42yczarjuqqfzqqqqqqqqlgqqqqqqgq9q9qxpqysgq079nkq507a5tw7xgttmj4u990j7wfggtrasah5gd4ywfr2pjcn29383tphp4t48gquelz9z78p4cq7ml3nrrphw5w6eckhjwmhezhnqpy6gyf0"], ["bolt11", "lnbc10u1p3unwfusp5t9r3yymhpfqculx78u027lxspgxcr2n2987mx2j55nnfs95nxnzqpp5jmrh92pfld78spqs78v9euf2385t83uvpwk9ldrlvf6ch7tpascqhp5zvkrmemgth3tufcvflmzjzfvjt023nazlhljz2n9hattj4f8jq8qxqyjw5qcqpjrzjqtc4fc44feggv7065fqe5m4ytjarg3repr5j9el35xhmtfexc42yczarjuqqfzqqqqqqqqlgqqqqqqgq9q9qxpqysgq079nkq507a5tw7xgttmj4u990j7wfggtrasah5gd4ywfr2pjcn29383tphp4t48gquelz9z78p4cq7ml3nrrphw5w6eckhjwmhezhnqpy6gyf0"],
["description", "{\"pubkey\":\"32e1827635450ebb3c5a7d12c1f8e7b2b514439ac10a67eef3d9fd9c5c68e245\",\"content\":\"\",\"id\":\"d9cc14d50fcb8c27539aacf776882942c1a11ea4472f8cdec1dea82fab66279d\",\"created_at\":1674164539,\"sig\":\"77127f636577e9029276be060332ea565deaf89ff215a494ccff16ae3f757065e2bc59b2e8c113dd407917a010b3abd36c8d7ad84c0e3ab7dab3a0b0caa9835d\",\"kind\":9734,\"tags\":[[\"e\",\"3624762a1274dd9636e0c552b53086d70bc88c165bc4dc0f9e836a1eaf86c3b8\"],[\"p\",\"32e1827635450ebb3c5a7d12c1f8e7b2b514439ac10a67eef3d9fd9c5c68e245\"],[\"relays\",\"wss://relay.damus.io\",\"wss://nostr-relay.wlvs.space\",\"wss://nostr.fmt.wiz.biz\",\"wss://relay.nostr.bg\",\"wss://nostr.oxtr.dev\",\"wss://nostr.v0l.io\",\"wss://brb.io\",\"wss://nostr.bitcoiner.social\",\"ws://monad.jb55.com:8080\",\"wss://relay.snort.social\"]]}"], ["description", "{\"pubkey\":\"97c70a44366a6535c145b333f973ea86dfdc2d7a99da618c40c64705ad98e322\",\"content\":\"\",\"id\":\"d9cc14d50fcb8c27539aacf776882942c1a11ea4472f8cdec1dea82fab66279d\",\"created_at\":1674164539,\"sig\":\"77127f636577e9029276be060332ea565deaf89ff215a494ccff16ae3f757065e2bc59b2e8c113dd407917a010b3abd36c8d7ad84c0e3ab7dab3a0b0caa9835d\",\"kind\":9734,\"tags\":[[\"e\",\"3624762a1274dd9636e0c552b53086d70bc88c165bc4dc0f9e836a1eaf86c3b8\"],[\"p\",\"32e1827635450ebb3c5a7d12c1f8e7b2b514439ac10a67eef3d9fd9c5c68e245\"],[\"relays\",\"wss://relay.damus.io\",\"wss://nostr-relay.wlvs.space\",\"wss://nostr.fmt.wiz.biz\",\"wss://relay.nostr.bg\",\"wss://nostr.oxtr.dev\",\"wss://nostr.v0l.io\",\"wss://brb.io\",\"wss://nostr.bitcoiner.social\",\"ws://monad.jb55.com:8080\",\"wss://relay.snort.social\"]]}"],
["preimage", "5d006d2cf1e73c7148e7519a4c68adc81642ce0e25a432b2434c99f97344c15f"] ["preimage", "5d006d2cf1e73c7148e7519a4c68adc81642ce0e25a432b2434c99f97344c15f"]
], ],
"content": "", "content": "",
"sig": "b0a3c5c984ceb777ac455b2f659505df51585d5fd97a0ec1fdb5f3347d392080d4b420240434a3afd909207195dac1e2f7e3df26ba862a45afd8bfe101c2b1cc"
} }
``` ```

2
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@ -28,7 +28,7 @@ The following tags MAY be present:
- A `name` tag with a short name for the badge. - A `name` tag with a short name for the badge.
- `image` tag whose value is the URL of a high-resolution image representing the badge. The second value optionally specifies the dimensions of the image as `width`x`height` in pixels. Badge recommended dimensions is 1024x1024 pixels. - `image` tag whose value is the URL of a high-resolution image representing the badge. The second value optionally specifies the dimensions of the image as `width`x`height` in pixels. Badge recommended dimensions is 1024x1024 pixels.
- A `description` tag whose value MAY contain a textual representation of the - A `description` tag whose value MAY contain a textual representation of the
image, the meaning behind the badge, or the reason of it's issuance. image, the meaning behind the badge, or the reason of its issuance.
- One or more `thumb` tags whose first value is an URL pointing to a thumbnail version of the image referenced in the `image` tag. The second value optionally specifies the dimensions of the thumbnail as `width`x`height` in pixels. - One or more `thumb` tags whose first value is an URL pointing to a thumbnail version of the image referenced in the `image` tag. The second value optionally specifies the dimensions of the thumbnail as `width`x`height` in pixels.
### Badge Award event ### Badge Award event

252
59.md Normal file
View File

@ -0,0 +1,252 @@
NIP-59
======
Gift Wrap
---------
`optional`
This NIP defines a protocol for encapsulating any nostr event. This makes it possible to obscure most metadata
for a given event, perform collaborative signing, and more.
This NIP *does not* define any messaging protocol. Applications of this NIP should be defined separately.
This NIP relies on [NIP-44](./44.md)'s versioned encryption algorithms.
# Overview
This protocol uses three main concepts to protect the transmission of a target event: `rumor`s, `seal`s, and `gift wrap`s.
- A `rumor` is a regular nostr event, but is **not signed**. This means that if it is leaked, it cannot be verified.
- A `rumor` is serialized to JSON, encrypted, and placed in the `content` field of a `seal`. The `seal` is then
signed by the author of the note. The only information publicly available on a `seal` is who signed it, but not what was said.
- A `seal` is serialized to JSON, encrypted, and placed in the `content` field of a `gift wrap`.
This allows the isolation of concerns across layers:
- A rumor carries the content but is unsigned, which means if leaked it will be rejected by relays and clients,
and can't be authenticated. This provides a measure of deniability.
- A seal identifies the author without revealing the content or the recipient.
- A gift wrap can add metadata (recipient, tags, a different author) without revealing the true author.
# Protocol Description
## 1. The Rumor Event Kind
A `rumor` is the same thing as an unsigned event. Any event kind can be made a `rumor` by removing the signature.
## 2. The Seal Event Kind
A `seal` is a `kind:13` event that wraps a `rumor` with the sender's regular key. The `seal` is **always** encrypted
to a receiver's pubkey but there is no `p` tag pointing to the receiver. There is no way to know who the rumor is for
without the receiver's or the sender's private key. The only public information in this event is who is signing it.
```js
{
"id": "<id>",
"pubkey": "<real author's pubkey>",
"content": "<encrypted rumor>",
"kind": 13,
"created_at": 1686840217,
"tags": [],
"sig": "<real author's pubkey signature>"
}
```
Tags MUST must always be empty in a `kind:13`. The inner event MUST always be unsigned.
## 3. Gift Wrap Event Kind
A `gift wrap` event is a `kind:1059` event that wraps any other event. `tags` SHOULD include any information
needed to route the event to its intended recipient, including the recipient's `p` tag or [NIP-13](13.md) proof of work.
```js
{
"id": "<id>",
"pubkey": "<random, one-time-use pubkey>",
"content": "<encrypted kind 13>",
"kind": 1059,
"created_at": 1686840217,
"tags": [["p", "<recipient pubkey>"]],
"sig": "<random, one-time-use pubkey signature>"
}
```
# Encrypting Payloads
Encryption is done following [NIP-44](44.md) on the JSON-encoded event. Place the encryption payload in the `.content`
of the wrapper event (either a `seal` or a `gift wrap`).
# Other Considerations
If a `rumor` is intended for more than one party, or if the author wants to retain an encrypted copy, a single
`rumor` may be wrapped and addressed for each recipient individually.
The canonical `created_at` time belongs to the `rumor`. All other timestamps SHOULD be tweaked to thwart
time-analysis attacks. Note that some relays don't serve events dated in the future, so all timestamps
SHOULD be in the past.
Relays may choose not to store gift wrapped events due to them not being publicly useful. Clients MAY choose
to attach a certain amount of proof-of-work to the wrapper event per [NIP-13](13.md) in a bid to demonstrate that
the event is not spam or a denial-of-service attack.
To protect recipient metadata, relays SHOULD guard access to `kind 1059` events based on user AUTH. When
possible, clients should only send wrapped events to relays that offer this protection.
To protect recipient metadata, relays SHOULD only serve `kind 1059` events intended for the marked recipient.
When possible, clients should only send wrapped events to `read` relays for the recipient that implement
AUTH, and refuse to serve wrapped events to non-recipients.
# An Example
Let's send a wrapped `kind 1` message between two parties asking "Are you going to the party tonight?"
- Author private key: `0beebd062ec8735f4243466049d7747ef5d6594ee838de147f8aab842b15e273`
- Recipient private key: `e108399bd8424357a710b606ae0c13166d853d327e47a6e5e038197346bdbf45`
- Ephemeral wrapper key: `4f02eac59266002db5801adc5270700ca69d5b8f761d8732fab2fbf233c90cbd`
Note that this messaging protocol should not be used in practice, this is just an example. Refer to other
NIPs for concrete messaging protocols that depend on gift wraps.
## 1. Create an event
Create a `kind 1` event with the message, the receivers, and any other tags you want, signed by the author.
Do not sign the event.
```json
{
"created_at": 1691518405,
"content": "Are you going to the party tonight?",
"tags": [],
"kind": 1,
"pubkey": "611df01bfcf85c26ae65453b772d8f1dfd25c264621c0277e1fc1518686faef9",
"id": "9dd003c6d3b73b74a85a9ab099469ce251653a7af76f523671ab828acd2a0ef9"
}
```
## 2. Seal the rumor
Encrypt the JSON-encoded `rumor` with a conversation key derived using the author's private key and
the recipient's public key. Place the result in the `content` field of a `kind 13` `seal` event. Sign
it with the author's key.
```json
{
"content": "AqBCdwoS7/tPK+QGkPCadJTn8FxGkd24iApo3BR9/M0uw6n4RFAFSPAKKMgkzVMoRyR3ZS/aqATDFvoZJOkE9cPG/TAzmyZvr/WUIS8kLmuI1dCA+itFF6+ULZqbkWS0YcVU0j6UDvMBvVlGTzHz+UHzWYJLUq2LnlynJtFap5k8560+tBGtxi9Gx2NIycKgbOUv0gEqhfVzAwvg1IhTltfSwOeZXvDvd40rozONRxwq8hjKy+4DbfrO0iRtlT7G/eVEO9aJJnqagomFSkqCscttf/o6VeT2+A9JhcSxLmjcKFG3FEK3Try/WkarJa1jM3lMRQqVOZrzHAaLFW/5sXano6DqqC5ERD6CcVVsrny0tYN4iHHB8BHJ9zvjff0NjLGG/v5Wsy31+BwZA8cUlfAZ0f5EYRo9/vKSd8TV0wRb9DQ=",
"kind": 13,
"created_at": 1703015180,
"pubkey": "611df01bfcf85c26ae65453b772d8f1dfd25c264621c0277e1fc1518686faef9",
"tags": [],
"id": "28a87d7c074d94a58e9e89bb3e9e4e813e2189f285d797b1c56069d36f59eaa7",
"sig": "02fc3facf6621196c32912b1ef53bac8f8bfe9db51c0e7102c073103586b0d29c3f39bdaa1e62856c20e90b6c7cc5dc34ca8bb6a528872cf6e65e6284519ad73"
}
```
## 3. Wrap the seal
Encrypt the JSON-encoded `kind 13` event with your ephemeral, single-use random key. Place the result
in the `content` field of a `kind 1059`. Add a single `p` tag containing the recipient's public key.
Sign the `gift wrap` using the random key generated in the previous step.
```json
{
"content": "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",
"kind": 1059,
"created_at": 1703021488,
"pubkey": "18b1a75918f1f2c90c23da616bce317d36e348bcf5f7ba55e75949319210c87c",
"id": "5c005f3ccf01950aa8d131203248544fb1e41a0d698e846bd419cec3890903ac",
"sig": "35fabdae4634eb630880a1896a886e40fd6ea8a60958e30b89b33a93e6235df750097b04f9e13053764251b8bc5dd7e8e0794a3426a90b6bcc7e5ff660f54259"
"tags": [["p", "166bf3765ebd1fc55decfe395beff2ea3b2a4e0a8946e7eb578512b555737c99"]],
}
```
## 4. Broadcast Selectively
Broadcast the `kind 1059` event to the recipient's relays only. Delete all the other events.
# Code Samples
## JavaScript
```javascript
import {bytesToHex} from "@noble/hashes/utils"
import type {EventTemplate, UnsignedEvent, Event} from "nostr-tools"
import {getPublicKey, getEventHash, nip19, nip44, finalizeEvent, generateSecretKey} from "nostr-tools"
type Rumor = UnsignedEvent & {id: string}
const TWO_DAYS = 2 * 24 * 60 * 60
const now = () => Math.round(Date.now() / 1000)
const randomNow = () => Math.round(now() - (Math.random() * TWO_DAYS))
const nip44ConversationKey = (privateKey: Uint8Array, publicKey: string) =>
nip44.v2.utils.getConversationKey(bytesToHex(privateKey), publicKey)
const nip44Encrypt = (data: EventTemplate, privateKey: Uint8Array, publicKey: string) =>
nip44.v2.encrypt(JSON.stringify(data), nip44ConversationKey(privateKey, publicKey))
const nip44Decrypt = (data: Event, privateKey: Uint8Array) =>
JSON.parse(nip44.v2.decrypt(data.content, nip44ConversationKey(privateKey, data.pubkey)))
const createRumor = (event: Partial<UnsignedEvent>, privateKey: Uint8Array) => {
const rumor = {
created_at: now(),
content: "",
tags: [],
...event,
pubkey: getPublicKey(privateKey),
} as any
rumor.id = getEventHash(rumor)
return rumor as Rumor
}
const createSeal = (rumor: Rumor, privateKey: Uint8Array, recipientPublicKey: string) => {
return finalizeEvent(
{
kind: 13,
content: nip44Encrypt(rumor, privateKey, recipientPublicKey),
created_at: randomNow(),
tags: [],
},
privateKey
) as Event
}
const createWrap = (event: Event, recipientPublicKey: string) => {
const randomKey = generateSecretKey()
return finalizeEvent(
{
kind: 1059,
content: nip44Encrypt(event, randomKey, recipientPublicKey),
created_at: randomNow(),
tags: [["p", recipientPublicKey]],
},
randomKey
) as Event
}
// Test case using the above example
const senderPrivateKey = nip19.decode(`nsec1p0ht6p3wepe47sjrgesyn4m50m6avk2waqudu9rl324cg2c4ufesyp6rdg`).data
const recipientPrivateKey = nip19.decode(`nsec1uyyrnx7cgfp40fcskcr2urqnzekc20fj0er6de0q8qvhx34ahazsvs9p36`).data
const recipientPublicKey = getPublicKey(recipientPrivateKey)
const rumor = createRumor(
{
kind: 1,
content: "Are you going to the party tonight?",
},
senderPrivateKey
)
const seal = createSeal(rumor, senderPrivateKey, recipientPublicKey)
const wrap = createWrap(seal, recipientPublicKey)
// Recipient unwraps with his/her private key.
const unwrappedSeal = nip44Decrypt(wrap, recipientPrivateKey)
const unsealedRumor = nip44Decrypt(unwrappedSeal, recipientPrivateKey)
```

2
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@ -19,7 +19,7 @@ The `.content` is not used.
["r", "wss://alicerelay.example.com"], ["r", "wss://alicerelay.example.com"],
["r", "wss://brando-relay.com"], ["r", "wss://brando-relay.com"],
["r", "wss://expensive-relay.example2.com", "write"], ["r", "wss://expensive-relay.example2.com", "write"],
["r", "wss://nostr-relay.example.com", "read"], ["r", "wss://nostr-relay.example.com", "read"]
], ],
"content": "", "content": "",
...other fields ...other fields

10
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@ -12,7 +12,7 @@ The goal of this NIP is to create moderator-approved public communities around a
`kind:34550` SHOULD include any field that helps define the community and the set of moderators. `relay` tags MAY be used to describe the preferred relay to download requests and approvals. `kind:34550` SHOULD include any field that helps define the community and the set of moderators. `relay` tags MAY be used to describe the preferred relay to download requests and approvals.
```json ```jsonc
{ {
"created_at": <Unix timestamp in seconds>, "created_at": <Unix timestamp in seconds>,
"kind": 34550, "kind": 34550,
@ -42,14 +42,14 @@ The goal of this NIP is to create moderator-approved public communities around a
Any Nostr event can be submitted to a community by anyone for approval. Clients MUST add the community's `a` tag to the new post event in order to be presented for the moderator's approval. Any Nostr event can be submitted to a community by anyone for approval. Clients MUST add the community's `a` tag to the new post event in order to be presented for the moderator's approval.
```json ```jsonc
{ {
"kind": 1, "kind": 1,
"tags": [ "tags": [
["a", "34550:<community event author pubkey>:<community-d-identifier>", "<optional-relay-url>"], ["a", "34550:<community event author pubkey>:<community-d-identifier>", "<optional-relay-url>"],
], ],
"content": "hello world", "content": "hello world",
... // ...
} }
``` ```
@ -59,7 +59,7 @@ Community management clients MAY filter all mentions to a given `kind:34550` eve
The post-approval event MUST include `a` tags of the communities the moderator is posting into (one or more), the `e` tag of the post and `p` tag of the author of the post (for approval notifications). The event SHOULD also include the stringified `post request` event inside the `.content` ([NIP-18-style](18.md)) and a `k` tag with the original post's event kind to allow filtering of approved posts by kind. The post-approval event MUST include `a` tags of the communities the moderator is posting into (one or more), the `e` tag of the post and `p` tag of the author of the post (for approval notifications). The event SHOULD also include the stringified `post request` event inside the `.content` ([NIP-18-style](18.md)) and a `k` tag with the original post's event kind to allow filtering of approved posts by kind.
```json ```jsonc
{ {
"pubkey": "<32-bytes lowercase hex-encoded public key of the event creator>", "pubkey": "<32-bytes lowercase hex-encoded public key of the event creator>",
"kind": 4550, "kind": 4550,
@ -70,7 +70,7 @@ The post-approval event MUST include `a` tags of the communities the moderator i
["k", "<post-request-kind>"] ["k", "<post-request-kind>"]
], ],
"content": "<the full approved event, JSON-encoded>", "content": "<the full approved event, JSON-encoded>",
... // ...
} }
``` ```

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@ -0,0 +1,45 @@
NIP-92
======
Media Attachments
-----------------
Media attachments (images, videos, and other files) may be added to events by including a URL in the event content, along with a matching `imeta` tag.
`imeta` ("inline metadata") tags add information about media URLs in the event's content. Each `imeta` tag SHOULD match a URL in the event content. Clients may replace imeta URLs with rich previews.
The `imeta` tag is variadic, and each entry is a space-delimited key/value pair.
Each `imeta` tag MUST have a `url`, and at least one other field. `imeta` may include
any field specified by [NIP 94](./94.md). There SHOULD be only one `imeta` tag per URL.
## Example
```json
{
"content": "More image metadata tests don’t mind me https://nostr.build/i/my-image.jpg",
"kind": 1,
"tags": [
[
"imeta",
"url https://nostr.build/i/my-image.jpg",
"m image/jpeg",
"blurhash eVF$^OI:${M{o#*0-nNFxakD-?xVM}WEWB%iNKxvR-oetmo#R-aen$",
"dim 3024x4032",
"alt A scenic photo overlooking the coast of Costa Rica",
"x <sha256 hash as specified in NIP 94>",
"fallback https://nostrcheck.me/alt1.jpg",
"fallback https://void.cat/alt1.jpg"
]
]
}
```
## Recommended client behavior
When uploading files during a new post, clients MAY include this metadata
after the file is uploaded and included in the post.
When pasting URLs during post composition, the client MAY download the file
and add this metadata before the post is sent.
The client MAY ignore `imeta` tags that do not match the URL in the event content.

7
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@ -6,7 +6,7 @@ File Metadata
`draft` `optional` `draft` `optional`
The purpose of this NIP is to allow an organization and classification of shared files. So that relays can filter and organize in any way that is of interest. With that, multiple types of filesharing clients can be created. NIP-94 support is not expected to be implemented by "social" clients that deal with kind:1 notes or by longform clients that deal with kind:30023 articles. The purpose of this NIP is to allow an organization and classification of shared files. So that relays can filter and organize in any way that is of interest. With that, multiple types of filesharing clients can be created. NIP-94 support is not expected to be implemented by "social" clients that deal with `kind:1` notes or by longform clients that deal with `kind:30023` articles.
## Event format ## Event format
@ -14,8 +14,8 @@ This NIP specifies the use of the `1063` event type, having in `content` a descr
* `url` the url to download the file * `url` the url to download the file
* `m` a string indicating the data type of the file. The [MIME types](https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types) format must be used, and they should be lowercase. * `m` a string indicating the data type of the file. The [MIME types](https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types) format must be used, and they should be lowercase.
* `"aes-256-gcm"` (optional) key and nonce for AES-GCM encryption with tagSize always 128bits
* `x` containing the SHA-256 hexencoded string of the file. * `x` containing the SHA-256 hexencoded string of the file.
* `ox` containing the SHA-256 hexencoded string of the original file, before any transformations done by the upload server
* `size` (optional) size of file in bytes * `size` (optional) size of file in bytes
* `dim` (optional) size of file in pixels in the form `<width>x<height>` * `dim` (optional) size of file in pixels in the form `<width>x<height>`
* `magnet` (optional) URI to magnet file * `magnet` (optional) URI to magnet file
@ -25,15 +25,16 @@ This NIP specifies the use of the `1063` event type, having in `content` a descr
* `image` (optional) url of preview image with same dimensions * `image` (optional) url of preview image with same dimensions
* `summary` (optional) text excerpt * `summary` (optional) text excerpt
* `alt` (optional) description for accessibility * `alt` (optional) description for accessibility
* `fallback` (optional) zero or more fallback file sources in case `url` fails
```json ```json
{ {
"kind": 1063, "kind": 1063,
"tags": [ "tags": [
["url",<string with URI of file>], ["url",<string with URI of file>],
["aes-256-gcm",<key>, <iv>],
["m", <MIME type>], ["m", <MIME type>],
["x",<Hash SHA-256>], ["x",<Hash SHA-256>],
["ox",<Hash SHA-256>],
["size", <size of file in bytes>], ["size", <size of file in bytes>],
["dim", <size of file in pixels>], ["dim", <size of file in pixels>],
["magnet",<magnet URI> ], ["magnet",<magnet URI> ],

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@ -0,0 +1,302 @@
NIP-96
======
HTTP File Storage Integration
-----------------------------
`draft` `optional`
## Introduction
This NIP defines a REST API for HTTP file storage servers intended to be used in conjunction with the nostr network.
The API will enable nostr users to upload files and later reference them by url on nostr notes.
The spec DOES NOT use regular nostr events through websockets for
storing, requesting nor retrieving data because, for simplicity, the server
will not have to learn anything about nostr relays.
## Server Adaptation
File storage servers wishing to be accessible by nostr users should opt-in by making available an https route at `/.well-known/nostr/nip96.json` with `api_url`:
```js
{
// Required
// File upload and deletion are served from this url
// Also downloads if "download_url" field is absent or empty string
"api_url": "https://your-file-server.example/custom-api-path",
// Optional
// If absent, downloads are served from the api_url
"download_url": "https://a-cdn.example/a-path",
// Optional
// Note: This field is not meant to be set by HTTP Servers.
// Use this if you are a nostr relay using your /.well-known/nostr/nip96.json
// just to redirect to someone else's http file storage server's /.well-known/nostr/nip96.json
// In this case, "api_url" field must be an empty string
"delegated_to_url": "https://your-file-server.example",
// Optional
"supported_nips": [60],
// Optional
"tos_url": "https://your-file-server.example/terms-of-service",
// Optional
"content_types": ["image/jpeg", "video/webm", "audio/*"],
// Optional
"plans": {
// "free" is the only standardized plan key and
// clients may use its presence to learn if server offers free storage
"free": {
"name": "Free Tier",
// Default is true
// All plans MUST support NIP-98 uploads
// but some plans may also allow uploads without it
"is_nip98_required": true,
"url": "https://...", // plan's landing page if there is one
"max_byte_size": 10485760,
// Range in days / 0 for no expiration
// [7, 0] means it may vary from 7 days to unlimited persistence,
// [0, 0] means it has no expiration
// early expiration may be due to low traffic or any other factor
"file_expiration": [14, 90],
"media_transformations": {
"image": [
'resizing'
]
}
}
}
}
```
### Relay Hints
Note: This section is not meant to be used by HTTP Servers.
A nostr relay MAY redirect to someone else's HTTP file storage server by
adding a `/.well-known/nostr/nip96.json` with "delegated_to_url" field
pointing to the url where the server hosts its own
`/.well-known/nostr/nip96.json`. In this case, the "api_url" field must
be an empty string and all other fields must be absent.
If the nostr relay is also an HTTP file storage server,
it must use the "api_url" field instead.
### List of Supporting File Storage Servers
| Name | Domain |
| ------------- | ------------------------- |
| nostrcheck.me | https://nostrcheck.me |
| nostrage | https://nostrage.com |
| sove | https://sove.rent |
| nostr.build | https://nostr.build |
| sovbit | https://files.sovbit.host |
| void.cat | https://void.cat |
## Upload
A file can be uploaded one at a time to `https://your-file-server.example/custom-api-path` (route from `https://your-file-server.example/.well-known/nostr/nip96.json` "api_url" field) as `multipart/form-data` content type using `POST` method with the file object set to the `file` form data field.
`Clients` must add an [NIP-98](98.md) `Authorization` header (**optionally** with the encoded `payload` tag set to the base64-encoded 256-bit SHA-256 hash of the file - not the hash of the whole request body).
If using an html form, use an `Authorization` form data field instead.
These following **optional** form data fields MAY be used by `servers` and SHOULD be sent by `clients`:
- `expiration`: string of the UNIX timestamp in seconds. Empty string if file should be stored forever. The server isn't required to honor this;
- `size`: string of the file byte size. This is just a value the server can use to reject early if the file size exceeds the server limits;
- `alt`: (recommended) strict description text for visibility-impaired users;
- `caption`: loose description;
- `media_type`: "avatar" or "banner". Informs the server if the file will be used as an avatar or banner. If absent, the server will interpret it as a normal upload, without special treatment;
- `content_type`: mime type such as "image/jpeg". This is just a value the server can use to reject early if the mime type isn't supported.
Others custom form data fields may be used depending on specific `server` support.
The `server` isn't required to store any metadata sent by `clients`.
Note for `clients`: if using an HTML form, it is important for the `file` form field to be the **last** one, or be re-ordered right before sending or be appended as the last field of XHR2's FormData object.
The `filename` embedded in the file may not be honored by the `server`, which could internally store just the SHA-256 hash value as the file name, ignoring extra metadata.
The hash is enough to uniquely identify a file, that's why it will be used on the "download" and "delete" routes.
The `server` MUST link the user's `pubkey` string (which is embedded in the decoded header value) as the owner of the file so to later allow them to delete the file.
Note that if a file with the same hash of a previously received file (so the same file) is uploaded by another user, the server doesn't need to store the new file.
It should just add the new user's `pubkey` to the list of the owners of the already stored file with said hash (if it wants to save space by keeping just one copy of the same file, because multiple uploads of the same file results in the same file hash).
The `server` MAY also store the `Authorization` header/field value (decoded or not) for accountability purpose as this proves that the user with the unique pubkey did ask for the upload of the file with a specific hash. However, storing the pubkey is sufficient to establish ownership.
The `server` MUST reject with 413 Payload Too Large if file size exceeds limits.
The `server` MUST reject with 400 Bad Request status if some fields are invalid.
The `server` MUST reply to the upload with 200 OK status if the `payload` tag value contains an already used SHA-256 hash (if file is already owned by the same pubkey) or reject the upload with 403 Forbidden status if it isn't the same of the received file.
The `server` MAY reject the upload with 402 Payment Required status if the user has a pending payment (Payment flow is not strictly required. Server owners decide if the storage is free or not. Monetization schemes may be added later to correlated NIPs.).
On successful uploads the `server` MUST reply with **201 Created** HTTP status code or **202 Accepted** if a `processing_url` field is added
to the response so that the `client` can follow the processing status (see [Delayed Processing](#delayed-processing) section).
The upload response is a json object as follows:
```js
{
// "success" if successful or "error" if not
status: "success",
// Free text success, failure or info message
message: "Upload successful.",
// Optional. See "Delayed Processing" section
processing_url: "...",
// This uses the NIP-94 event format but DO NOT need
// to fill some fields like "id", "pubkey", "created_at" and "sig"
//
// This holds the download url ("url"),
// the ORIGINAL file hash before server transformations ("ox")
// and, optionally, all file metadata the server wants to make available
//
// nip94_event field is absent if unsuccessful upload
nip94_event: {
// Required tags: "url" and "ox"
tags: [
// Can be same from /.well-known/nostr/nip96.json's "download_url" field
// (or "api_url" field if "download_url" is absent or empty) with appended
// original file hash.
//
// Note we appended .png file extension to the `ox` value
// (it is optional but extremely recommended to add the extension as it will help nostr clients
// with detecting the file type by using regular expression)
//
// Could also be any url to download the file
// (using or not using the /.well-known/nostr/nip96.json's "download_url" prefix),
// for load balancing purposes for example.
["url", "https://your-file-server.example/custom-api-path/719171db19525d9d08dd69cb716a18158a249b7b3b3ec4bbdec5698dca104b7b.png"],
// SHA-256 hash of the ORIGINAL file, before transformations.
// The server MUST store it even though it represents the ORIGINAL file because
// users may try to download/delete the transformed file using this value
["ox", "719171db19525d9d08dd69cb716a18158a249b7b3b3ec4bbdec5698dca104b7b"],
// Optional. SHA-256 hash of the saved file after any server transformations.
// The server can but does not need to store this value.
["x", "543244319525d9d08dd69cb716a18158a249b7b3b3ec4bbde5435543acb34443"],
// Optional. Recommended for helping clients to easily know file type before downloading it.
["m", "image/png"]
// Optional. Recommended for helping clients to reserve an adequate UI space to show the file before downloading it.
["dim", "800x600"]
// ... other optional NIP-94 tags
],
content: ""
},
// ... other custom fields (please consider adding them to this NIP or to NIP-94 tags)
}
```
Note that if the server didn't apply any transformation to the received file, both `nip94_event.tags.*.ox` and `nip94_event.tags.*.x` fields will have the same value. The server MUST link the saved file to the SHA-256 hash of the **original** file before any server transformations (the `nip94_event.tags.*.ox` tag value). The **original** file's SHA-256 hash will be used to identify the saved file when downloading or deleting it.
`Clients` may upload the same file to one or many `servers`.
After successful upload, the `client` may optionally generate and send to any set of nostr `relays` a [NIP-94](94.md) event by including the missing fields.
Alternatively, instead of using NIP-94, the `client` can share or embed on a nostr note just the above url.
### Delayed Processing
Sometimes the server may want to place the uploaded file in a processing queue for deferred file processing.
In that case, the server MUST serve the original file while the processing isn't done, then swap the original file for the processed one when the processing is over. The upload response is the same as usual but some optional metadata like `nip94_event.tags.*.x` and `nip94_event.tags.*.size` won't be available.
The expected resulting metadata that is known in advance should be returned on the response.
For example, if the file processing would change a file from "jpg" to "webp",
use ".webp" extension on the `nip94_event.tags.*.url` field value and set "image/webp" to the `nip94_event.tags.*.m` field.
If some metadata are unknown before processing ends, omit them from the response.
The upload response MAY include a `processing_url` field informing a temporary url that may be used by clients to check if
the file processing is done.
If the processing isn't done, the server should reply at the `processing_url` url with **200 OK** and the following JSON:
```
{
// It should be "processing". If "error" it would mean the processing failed.
status: "processing",
message: "Processing. Please check again later for updated status.",
percentage: 15 // Processing percentage. An integer between 0 and 100.
}
```
When the processing is over, the server replies at the `processing_url` url with **201 Created** status and a regular successful JSON response already mentioned before (now **without** a `processing_url` field), possibly including optional metadata at `nip94_event.tags.*` fields
that weren't available before processing.
### File compression
File compression and other transformations like metadata stripping can be applied by the server.
However, for all file actions, such as download and deletion, the **original** file SHA-256 hash is what identifies the file in the url string.
## Download
`Servers` must make available the route `https://your-file-server.example/custom-api-path/<sha256-file-hash>(.ext)` (route taken from `https://your-file-server.example/.well-known/nostr/nip96.json` "api_url" or "download_url" field) with `GET` method for file download.
The primary file download url informed at the upload's response field `nip94_event.tags.*.url`
can be that or not (it can be any non-standard url the server wants).
If not, the server still MUST also respond to downloads at the standard url
mentioned on the previous paragraph, to make it possible for a client
to try downloading a file on any NIP-96 compatible server by knowing just the SHA-256 file hash.
Note that the "\<sha256-file-hash\>" part is from the **original** file, **not** from the **transformed** file if the uploaded file went through any server transformation.
Supporting ".ext", meaning "file extension", is required for `servers`. It is optional, although recommended, for `clients` to append it to the path.
When present it may be used by `servers` to know which `Content-Type` header to send (e.g.: "Content-Type": "image/png" for ".png" extension).
The file extension may be absent because the hash is the only needed string to uniquely identify a file.
Example: `https://your-file-server.example/custom-api-path/719171db19525d9d08dd69cb716a18158a249b7b3b3ec4bbdec5698dca104b7b.png`
### Media Transformations
`Servers` may respond to some media transformation query parameters and ignore those they don't support by serving
the original media file without transformations.
#### Image Transformations
##### Resizing
Upon upload, `servers` may create resized image variants, such as thumbnails, respecting the original aspect ratio.
`Clients` may use the `w` query parameter to request an image version with the desired pixel width.
`Servers` can then serve the variant with the closest width to the parameter value
or an image variant generated on the fly.
Example: `https://your-file-server.example/custom-api-path/<sha256-file-hash>.png?w=32`
## Deletion
`Servers` must make available the route `https://deletion.domain/deletion-path/<sha256-file-hash>(.ext)` (route taken from `https://your-file-server.example/.well-known/nostr/nip96.json` "api_url" field) with `DELETE` method for file deletion.
Note that the "\<sha256-file-hash\>" part is from the **original** file, **not** from the **transformed** file if the uploaded file went through any server transformation.
The extension is optional as the file hash is the only needed file identification.
`Clients` should send a `DELETE` request to the server deletion route in the above format. It must include a NIP-98 `Authorization` header.
The `server` should reject deletes from users other than the original uploader. The `pubkey` encoded on the header value identifies the user.
It should be noted that more than one user may have uploaded the same file (with the same hash). In this case, a delete must not really delete the file but just remove the user's `pubkey` from the file owners list (considering the server keeps just one copy of the same file, because multiple uploads of the same file results
in the same file hash).
The successful response is a 200 OK one with just basic JSON fields:
```
{
status: "success",
message: "File deleted."
}
```
## Selecting a Server
Note: HTTP File Storage Server developers may skip this section. This is meant for client developers.
A File Server Preference event is a kind 10096 replaceable event meant to select one or more servers the user wants
to upload files to. Servers are listed as `server` tags:
```js
{
// ...
"kind": 10096,
"content": "",
"tags": [
["server", "https://file.server.one"],
["server", "https://file.server.two"]
]
}
```

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@ -40,6 +40,7 @@ The following tags, used for structured metadata, are standardized and SHOULD be
- `"<number>"` is the amount in numeric format (but included in the tag as a string) - `"<number>"` is the amount in numeric format (but included in the tag as a string)
- `"<currency>"` is the currency unit in 3-character ISO 4217 format or ISO 4217-like currency code (e.g. `"btc"`, `"eth"`). - `"<currency>"` is the currency unit in 3-character ISO 4217 format or ISO 4217-like currency code (e.g. `"btc"`, `"eth"`).
- `"<frequency>"` is optional and can be used to describe recurring payments. SHOULD be in noun format (hour, day, week, month, year, etc.) - `"<frequency>"` is optional and can be used to describe recurring payments. SHOULD be in noun format (hour, day, week, month, year, etc.)
- - `"status"` (optional), the status of the listing. SHOULD be either "active" or "sold".
#### `price` examples #### `price` examples

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@ -0,0 +1,45 @@
# Breaking Changes
This is a history of NIP changes that potentially break pre-existing implementations, in
reverse chronological order.
| Date | Commit | NIP | Change |
| ----------- | --------- | -------- | ------ |
| 2024-02-16 | [cbec02ab](https://github.com/nostr-protocol/nips/commit/cbec02ab) | [NIP-49](49.md) | Password first normalized to NFKC |
| 2024-02-15 | [afbb8dd0](https://github.com/nostr-protocol/nips/commit/afbb8dd0) | [NIP-39](39.md) | PGP identity was removed |
| 2024-02-07 | [d3dad114](https://github.com/nostr-protocol/nips/commit/d3dad114) | [NIP-46](46.md) | Connection token format was changed |
| 2024-01-30 | [1a2b21b6](https://github.com/nostr-protocol/nips/commit/1a2b21b6) | [NIP-59](59.md) | 'p' tag became optional |
| 2023-01-27 | [c2f34817](https://github.com/nostr-protocol/nips/commit/c2f34817) | [NIP-47](47.md) | optional expiration tag should be honored |
| 2024-01-10 | [3d8652ea](https://github.com/nostr-protocol/nips/commit/3d8652ea) | [NIP-02](02.md) | list entries should be chronological |
| 2024-01-10 | [3d8652ea](https://github.com/nostr-protocol/nips/commit/3d8652ea) | [NIP-51](51.md) | list entries should be chronological |
| 2023-12-30 | [29869821](https://github.com/nostr-protocol/nips/commit/29869821) | [NIP-52](52.md) | 'name' tag was removed (use 'title' tag instead) |
| 2023-12-27 | [17c67ef5](https://github.com/nostr-protocol/nips/commit/17c67ef5) | [NIP-94](94.md) | 'aes-256-gcm' tag was removed |
| 2023-12-03 | [0ba45895](https://github.com/nostr-protocol/nips/commit/0ba45895) | [NIP-01](01.md) | WebSocket status code `4000` was replaced by 'CLOSED' message |
| 2023-11-28 | [6de35f9e](https://github.com/nostr-protocol/nips/commit/6de35f9e) | [NIP-89](89.md) | 'client' tag value was changed |
| 2023-11-20 | [7822a8b1](https://github.com/nostr-protocol/nips/commit/7822a8b1) | [NIP-51](51.md) | `kind: 30000` and `kind: 30001` were deprecated |
| 2023-11-11 | [cbdca1e9](https://github.com/nostr-protocol/nips/commit/cbdca1e9) | [NIP-84](84.md) | 'range' tag was removed |
| 2023-11-07 | [108b7f16](https://github.com/nostr-protocol/nips/commit/108b7f16) | [NIP-01](01.md) | 'OK' message must have 4 items |
| 2023-10-17 | [cf672b76](https://github.com/nostr-protocol/nips/commit/cf672b76) | [NIP-03](03.md) | 'block' tag was removed |
| 2023-09-29 | [7dc6385f](https://github.com/nostr-protocol/nips/commit/7dc6385f) | [NIP-57](57.md) | optional 'a' tag was included in `zap receipt` |
| 2023-08-21 | [89915e02](https://github.com/nostr-protocol/nips/commit/89915e02) | [NIP-11](11.md) | 'min_prefix' was removed |
| 2023-08-20 | [37c4375e](https://github.com/nostr-protocol/nips/commit/37c4375e) | [NIP-01](01.md) | replaceable events with same timestamp should be retained event with lowest id |
| 2023-08-15 | [88ee873c](https://github.com/nostr-protocol/nips/commit/88ee873c) | [NIP-15](15.md) | 'countries' tag was renamed to 'regions' |
| 2023-08-14 | [72bb8a12](https://github.com/nostr-protocol/nips/commit/72bb8a12) | [NIP-12](12.md) | NIP-12, 16, 20 and 33 were merged into NIP-01 |
| 2023-08-14 | [72bb8a12](https://github.com/nostr-protocol/nips/commit/72bb8a12) | [NIP-16](16.md) | NIP-12, 16, 20 and 33 were merged into NIP-01 |
| 2023-08-14 | [72bb8a12](https://github.com/nostr-protocol/nips/commit/72bb8a12) | [NIP-20](20.md) | NIP-12, 16, 20 and 33 were merged into NIP-01 |
| 2023-08-14 | [72bb8a12](https://github.com/nostr-protocol/nips/commit/72bb8a12) | [NIP-33](33.md) | NIP-12, 16, 20 and 33 were merged into NIP-01 |
| 2023-08-11 | [d87f8617](https://github.com/nostr-protocol/nips/commit/d87f8617) | [NIP-25](25.md) | empty `content` should be considered as "+" |
| 2023-08-01 | [5d63b157](https://github.com/nostr-protocol/nips/commit/5d63b157) | [NIP-57](57.md) | 'zap' tag was changed |
| 2023-07-15 | [d1814405](https://github.com/nostr-protocol/nips/commit/d1814405) | [NIP-01](01.md) | `since` and `until` filters should be `since <= created_at <= until` |
| 2023-07-12 | [a1cd2bd8](https://github.com/nostr-protocol/nips/commit/a1cd2bd8) | [NIP-25](25.md) | custom emoji was supported |
| 2023-06-18 | [83cbd3e1](https://github.com/nostr-protocol/nips/commit/83cbd3e1) | [NIP-11](11.md) | 'image' was renamed to 'icon' |
| 2023-04-13 | [bf0a0da6](https://github.com/nostr-protocol/nips/commit/bf0a0da6) | [NIP-15](15.md) | different NIP was re-added as NIP-15 |
| 2023-04-09 | [fb5b7c73](https://github.com/nostr-protocol/nips/commit/fb5b7c73) | [NIP-15](15.md) | NIP-15 was merged into NIP-01 |
| 2023-03-15 | [e1004d3d](https://github.com/nostr-protocol/nips/commit/e1004d3d) | [NIP-19](19.md) | `1: relay` was changed to optionally |
Breaking changes prior to 2023-03-01 are not yet documented.
## NOTES
- If it isn't clear that a change is breaking or not, we list it.
- The date is the date it was merged, not necessarily the date of the commit.

47
README.md
View File

@ -15,6 +15,7 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
- [Criteria for acceptance of NIPs](#criteria-for-acceptance-of-nips) - [Criteria for acceptance of NIPs](#criteria-for-acceptance-of-nips)
- [Is this repository a centralizing factor?](#is-this-repository-a-centralizing-factor) - [Is this repository a centralizing factor?](#is-this-repository-a-centralizing-factor)
- [How this repository works](#how-this-repository-works) - [How this repository works](#how-this-repository-works)
- [Breaking Changes](#breaking-changes)
- [License](#license) - [License](#license)
--- ---
@ -22,9 +23,9 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
## List ## List
- [NIP-01: Basic protocol flow description](01.md) - [NIP-01: Basic protocol flow description](01.md)
- [NIP-02: Contact List and Petnames](02.md) - [NIP-02: Follow List](02.md)
- [NIP-03: OpenTimestamps Attestations for Events](03.md) - [NIP-03: OpenTimestamps Attestations for Events](03.md)
- [NIP-04: Encrypted Direct Message](04.md) - [NIP-04: Encrypted Direct Message](04.md) --- **unrecommended**: deprecated in favor of [NIP-44](44.md)
- [NIP-05: Mapping Nostr keys to DNS-based internet identifiers](05.md) - [NIP-05: Mapping Nostr keys to DNS-based internet identifiers](05.md)
- [NIP-06: Basic key derivation from mnemonic seed phrase](06.md) - [NIP-06: Basic key derivation from mnemonic seed phrase](06.md)
- [NIP-07: `window.nostr` capability for web browsers](07.md) - [NIP-07: `window.nostr` capability for web browsers](07.md)
@ -44,6 +45,7 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
- [NIP-26: Delegated Event Signing](26.md) - [NIP-26: Delegated Event Signing](26.md)
- [NIP-27: Text Note References](27.md) - [NIP-27: Text Note References](27.md)
- [NIP-28: Public Chat](28.md) - [NIP-28: Public Chat](28.md)
- [NIP-29: Relay-based Groups](29.md)
- [NIP-30: Custom Emoji](30.md) - [NIP-30: Custom Emoji](30.md)
- [NIP-31: Dealing with Unknown Events](31.md) - [NIP-31: Dealing with Unknown Events](31.md)
- [NIP-32: Labeling](32.md) - [NIP-32: Labeling](32.md)
@ -52,10 +54,12 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
- [NIP-39: External Identities in Profiles](39.md) - [NIP-39: External Identities in Profiles](39.md)
- [NIP-40: Expiration Timestamp](40.md) - [NIP-40: Expiration Timestamp](40.md)
- [NIP-42: Authentication of clients to relays](42.md) - [NIP-42: Authentication of clients to relays](42.md)
- [NIP-44: Versioned Encryption](44.md)
- [NIP-45: Counting results](45.md) - [NIP-45: Counting results](45.md)
- [NIP-46: Nostr Connect](46.md) - [NIP-46: Nostr Connect](46.md)
- [NIP-47: Wallet Connect](47.md) - [NIP-47: Wallet Connect](47.md)
- [NIP-48: Proxy Tags](48.md) - [NIP-48: Proxy Tags](48.md)
- [NIP-49: Private Key Encryption](49.md)
- [NIP-50: Search Capability](50.md) - [NIP-50: Search Capability](50.md)
- [NIP-51: Lists](51.md) - [NIP-51: Lists](51.md)
- [NIP-52: Calendar Events](52.md) - [NIP-52: Calendar Events](52.md)
@ -63,6 +67,7 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
- [NIP-56: Reporting](56.md) - [NIP-56: Reporting](56.md)
- [NIP-57: Lightning Zaps](57.md) - [NIP-57: Lightning Zaps](57.md)
- [NIP-58: Badges](58.md) - [NIP-58: Badges](58.md)
- [NIP-59: Gift Wrap](59.md)
- [NIP-65: Relay List Metadata](65.md) - [NIP-65: Relay List Metadata](65.md)
- [NIP-72: Moderated Communities](72.md) - [NIP-72: Moderated Communities](72.md)
- [NIP-75: Zap Goals](75.md) - [NIP-75: Zap Goals](75.md)
@ -70,29 +75,39 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
- [NIP-84: Highlights](84.md) - [NIP-84: Highlights](84.md)
- [NIP-89: Recommended Application Handlers](89.md) - [NIP-89: Recommended Application Handlers](89.md)
- [NIP-90: Data Vending Machines](90.md) - [NIP-90: Data Vending Machines](90.md)
- [NIP-92: Media Attachments](92.md)
- [NIP-94: File Metadata](94.md) - [NIP-94: File Metadata](94.md)
- [NIP-96: HTTP File Storage Integration](96.md)
- [NIP-98: HTTP Auth](98.md) - [NIP-98: HTTP Auth](98.md)
- [NIP-99: Classified Listings](99.md) - [NIP-99: Classified Listings](99.md)
## Event Kinds ## Event Kinds
| kind | description | NIP | | kind | description | NIP |
| ------------- | -------------------------- | ----------- | | ------------- | -------------------------- | ------------------------ |
| `0` | Metadata | [1](01.md) | | `0` | Metadata | [01](01.md) |
| `1` | Short Text Note | [1](01.md) | | `1` | Short Text Note | [01](01.md) |
| `2` | Recommend Relay | | | `2` | Recommend Relay | 01 (deprecated) |
| `3` | Contacts | [2](02.md) | | `3` | Follows | [02](02.md) |
| `4` | Encrypted Direct Messages | [4](04.md) | | `4` | Encrypted Direct Messages | [04](04.md) |
| `5` | Event Deletion | [9](09.md) | | `5` | Event Deletion | [09](09.md) |
| `6` | Repost | [18](18.md) | | `6` | Repost | [18](18.md) |
| `7` | Reaction | [25](25.md) | | `7` | Reaction | [25](25.md) |
| `8` | Badge Award | [58](58.md) | | `8` | Badge Award | [58](58.md) |
| `9` | Group Chat Message | [29](29.md) |
| `10` | Group Chat Threaded Reply | [29](29.md) |
| `11` | Group Thread | [29](29.md) |
| `12` | Group Thread Reply | [29](29.md) |
| `13` | Seal | [59](59.md) |
| `16` | Generic Repost | [18](18.md) | | `16` | Generic Repost | [18](18.md) |
| `40` | Channel Creation | [28](28.md) | | `40` | Channel Creation | [28](28.md) |
| `41` | Channel Metadata | [28](28.md) | | `41` | Channel Metadata | [28](28.md) |
| `42` | Channel Message | [28](28.md) | | `42` | Channel Message | [28](28.md) |
| `43` | Channel Hide Message | [28](28.md) | | `43` | Channel Hide Message | [28](28.md) |
| `44` | Channel Mute User | [28](28.md) | | `44` | Channel Mute User | [28](28.md) |
| `1021` | Bid | [15](15.md) |
| `1022` | Bid confirmation | [15](15.md) |
| `1040` | OpenTimestamps | [03](03.md) | | `1040` | OpenTimestamps | [03](03.md) |
| `1059` | Gift Wrap | [59](59.md) |
| `1063` | File Metadata | [94](94.md) | | `1063` | File Metadata | [94](94.md) |
| `1311` | Live Chat Message | [53](53.md) | | `1311` | Live Chat Message | [53](53.md) |
| `1754` | Prop Application | [44](/44.md) | | `1754` | Prop Application | [44](/44.md) |
@ -103,6 +118,7 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
| `5000`-`5999` | Job Request | [90](90.md) | | `5000`-`5999` | Job Request | [90](90.md) |
| `6000`-`6999` | Job Result | [90](90.md) | | `6000`-`6999` | Job Result | [90](90.md) |
| `7000` | Job Feedback | [90](90.md) | | `7000` | Job Feedback | [90](90.md) |
| `9000`-`9030` | Group Control Events | [29](29.md) |
| `9041` | Zap Goal | [75](75.md) | | `9041` | Zap Goal | [75](75.md) |
| `9734` | Zap Request | [57](57.md) | | `9734` | Zap Request | [57](57.md) |
| `9735` | Zap | [57](57.md) | | `9735` | Zap | [57](57.md) |
@ -115,8 +131,10 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
| `10005` | Public chats list | [51](51.md) | | `10005` | Public chats list | [51](51.md) |
| `10006` | Blocked relays list | [51](51.md) | | `10006` | Blocked relays list | [51](51.md) |
| `10007` | Search relays list | [51](51.md) | | `10007` | Search relays list | [51](51.md) |
| `10009` | User groups | [51](51.md), [29](29.md) |
| `10015` | Interests list | [51](51.md) | | `10015` | Interests list | [51](51.md) |
| `10030` | User emoji list | [51](51.md) | | `10030` | User emoji list | [51](51.md) |
| `10096` | File storage server list | [96](96.md) |
| `13194` | Wallet Info | [47](47.md) | | `13194` | Wallet Info | [47](47.md) |
| `21000` | Lightning Pub RPC | [Lightning.Pub][lnpub] | | `21000` | Lightning Pub RPC | [Lightning.Pub][lnpub] |
| `22242` | Client Authentication | [42](42.md) | | `22242` | Client Authentication | [42](42.md) |
@ -134,9 +152,12 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
| `30015` | Interest sets | [51](51.md) | | `30015` | Interest sets | [51](51.md) |
| `30017` | Create or update a stall | [15](15.md) | | `30017` | Create or update a stall | [15](15.md) |
| `30018` | Create or update a product | [15](15.md) | | `30018` | Create or update a product | [15](15.md) |
| `30019` | Marketplace UI/UX | [15](15.md) |
| `30020` | Product sold as an auction | [15](15.md) |
| `30023` | Long-form Content | [23](23.md) | | `30023` | Long-form Content | [23](23.md) |
| `30024` | Draft Long-form Content | [23](23.md) | | `30024` | Draft Long-form Content | [23](23.md) |
| `30030` | Emoji sets | [51](51.md) | | `30030` | Emoji sets | [51](51.md) |
| `30063` | Release artifact sets | [51](51.md) |
| `30078` | Application-specific Data | [78](78.md) | | `30078` | Application-specific Data | [78](78.md) |
| `30311` | Live Event | [53](53.md) | | `30311` | Live Event | [53](53.md) |
| `30315` | User Statuses | [38](38.md) | | `30315` | User Statuses | [38](38.md) |
@ -148,6 +169,7 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
| `31925` | Calendar Event RSVP | [52](52.md) | | `31925` | Calendar Event RSVP | [52](52.md) |
| `31989` | Handler recommendation | [89](89.md) | | `31989` | Handler recommendation | [89](89.md) |
| `31990` | Handler information | [89](89.md) | | `31990` | Handler information | [89](89.md) |
| `39000-9` | Group metadata events | [29](29.md) |
| `34550` | Community Definition | [72](72.md) | | `34550` | Community Definition | [72](72.md) |
| `37515` | Place | [44](44.md) | | `37515` | Place | [44](44.md) |
@ -194,6 +216,7 @@ Please update these lists when proposing NIPs introducing new event kinds.
| `l` | label, label namespace | annotations | [32](32.md) | | `l` | label, label namespace | annotations | [32](32.md) |
| `L` | label namespace | -- | [32](32.md) | | `L` | label namespace | -- | [32](32.md) |
| `m` | MIME type | -- | [94](94.md) | | `m` | MIME type | -- | [94](94.md) |
| `q` | event id (hex) | relay URL | [18](18.md) |
| `r` | a reference (URL, etc) | petname | | | `r` | a reference (URL, etc) | petname | |
| `r` | relay url | marker | [65](65.md) | | `r` | relay url | marker | [65](65.md) |
| `t` | hashtag | -- | | | `t` | hashtag | -- | |
@ -210,6 +233,7 @@ Please update these lists when proposing NIPs introducing new event kinds.
| `expiration` | unix timestamp (string) | -- | [40](40.md) | | `expiration` | unix timestamp (string) | -- | [40](40.md) |
| `goal` | event id (hex) | relay URL | [75](75.md) | | `goal` | event id (hex) | relay URL | [75](75.md) |
| `image` | image URL | dimensions in pixels | [23](23.md), [58](58.md) | | `image` | image URL | dimensions in pixels | [23](23.md), [58](58.md) |
| `imeta` | inline metadata | -- | [92](92.md) |
| `lnurl` | `bech32` encoded `lnurl` | -- | [57](57.md) | | `lnurl` | `bech32` encoded `lnurl` | -- | [57](57.md) |
| `location` | location string | -- | [52](52.md), [99](99.md) | | `location` | location string | -- | [52](52.md), [99](99.md) |
| `name` | badge name | -- | [58](58.md) | | `name` | badge name | -- | [58](58.md) |
@ -221,6 +245,7 @@ Please update these lists when proposing NIPs introducing new event kinds.
| `published_at` | unix timestamp (string) | -- | [23](23.md) | | `published_at` | unix timestamp (string) | -- | [23](23.md) |
| `relay` | relay url | -- | [42](42.md) | | `relay` | relay url | -- | [42](42.md) |
| `relays` | relay list | -- | [57](57.md) | | `relays` | relay list | -- | [57](57.md) |
| `server` | file storage server url | -- | [96](96.md) |
| `subject` | subject | -- | [14](14.md) | | `subject` | subject | -- | [14](14.md) |
| `summary` | article summary | -- | [23](23.md) | | `summary` | article summary | -- | [23](23.md) |
| `thumb` | badge thumbnail | dimensions in pixels | [58](58.md) | | `thumb` | badge thumbnail | dimensions in pixels | [58](58.md) |
@ -249,6 +274,10 @@ Standards may emerge in two ways: the first way is that someone starts doing som
These two ways of standardizing things are supported by this repository. Although the second is preferred, an effort will be made to codify standards emerged outside this repository into NIPs that can be later referenced and easily understood and implemented by others -- but obviously as in any human system discretion may be applied when standards are considered harmful. These two ways of standardizing things are supported by this repository. Although the second is preferred, an effort will be made to codify standards emerged outside this repository into NIPs that can be later referenced and easily understood and implemented by others -- but obviously as in any human system discretion may be applied when standards are considered harmful.
## Breaking Changes
[Breaking Changes](BREAKING.md)
## License ## License
All NIPs are public domain. All NIPs are public domain.