nips/63.md

NIP-63

Signed Filters

draft optional

This NIP declares the use of event kind 33012 to represent one or more Nostr filters.

The d tag represents the subscription id and the filter tag contains the JSON-stringified (NIP-01)[01.md] filter.

Supporting relays interpret the tags of this event as if they were submitted in the REQ scheme while automatically authenticating the signer. The relay MUST delete these events after the connection closes.

They are submitted to the relay via EVENT messages instead of the usual REQ message.

The goal is to be able to support AUTH from multiple users in the same connection while removing the usual AUTH round trip.

{
  "kind": 33012,
  "tags": [
    ["d", "<subscription_id>"],
    ["filter", "<filters1>"],
    ["filter", "<filters2>"],
  ],
  "content": "",
  ...other fields
}