1.2 KiB
NIP-63
Signed Filters
draft
optional
Event kind 33012
is used to represent one or more Nostr filters.
The d
tag represents the subscription id and the filter
tag contains the JSON-stringified NIP-01 filter.
{
"kind": 33012,
"tags": [
["d", "<subscription_id>"],
["relay", "<relay>"],
["filter", "<filter1>"],
["filter", "<filter2>"],
["expiration", "<unix timestamp>"],
],
"content": "",
// ...other fields
}
They are submitted to supporting relays via SREQ
command, with the following format:
["SREQ", <signed kind-33012>]
Supporting relays interpret the filter
tags in the same way they do with REQ
while automatically authenticating the signer.
Relays MAY reject these filters based on created_at
.
An expiration tag MAY be used to limit the reuse of the filter.
Motivation
The goal is to be able to support AUTH
from multiple users in the same connection. As a side effect, this approach removes the AUTH
round trip.
Trusted proxies can use these event types to query relays on behalf of the user.
Push Notification systems can use these events to download events from private relays and push them down to mobile phones.