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doc: describe event content

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@ -18,25 +18,33 @@ Any client can ask its peers to re-publish messages on its behalf. The simplifie
- `Alice` wants to chat with `Bob`. She builds the `kind:4` nostr event but does NOT sent it to the relay(s).
- instead `Alice` creates a `kind:4` event for `Carol` where the content is the event for `Bob`. `Alice` publishes this event to the relay(s).
- `Carol` receives the event, unwrapps it and publishes to the relay(s) the event for `Bob`.
- the relay(s) see the event as comming from `Carol` instead of `Alice`
- the relay(s) see the event as coming from `Carol` instead of `Alice`
People can easily run very lightweight republish services for free and provide anonymity for everybody else.
## Implementation
Define a new very generic `republish` event with `kind:20001` (ephemeral) in the form:
Define a new [NIP-16](https://github.com/nostr-protocol/nips/blob/master/16.md) `republish` event with `kind:20001` (ephemeral) in the form:
```json
{
...
"kind": 20001,
"content": <encrypted JSON of the event that is to be republished>,
"content": <encrypted JSON of the event(s) that is to be republished>,
"tags": [
["p", <pubkey of the person that is chosen to republish this>],
["relays", "wss://relay.com", "wss://otherrelay.com", "and so on, there could be many of these"]
["relays", "wss://somerelay.com", "wss://otherrelay.com", "and so on, there could be many of these"]
]
}
```
Then whenever the chosen republisher sees a note like that they automatically decrypt it using NIP-04 method and publish it to the chosen relays.
Whenever the chosen `re-publisher` sees a note like that, they automatically decrypt it using [NIP-04](https://github.com/nostr-protocol/nips/blob/master/04.md) method and publish it to the chosen relays.
- the chosen relays could (and probably should) be different from the relay used to broadcast the republish event.
- there could be many republish events with the same underlying encrypted event.
- there could be multiple nested levels of republish events.
The JSON content (before encription) of the `kind:20001` event is of this form (other fields might later be added):
```json
{
"events": [<list of nostr events to be re-published>],
"padding": <string (optional), random data used to obfuscate the real size of re-publised event(s)>
}
```