About kind 2004, I have no idea and don't even know who proposed it. The description says:
"This event works exactly like a kind 1 and should follow NIP-10 for tagging."
Only explanation I can come up with is that you can filter torrent comments: if your client doesn't support viewing 2003s seeing comments on that event would be odd. But then again I'm sure that's the case with other kinds already.
npub13s…2gns9
2026-08-23 05:43:31 UTC
in reply to nevent1q…akr0
Author Public Key
npub13syp5l9kqd8g5ptdl4mdf6c0tnwarpv8k5fld35pl0vfgrlgxqpqz2gns9Published at
2026-08-23 05:43:31 UTCEvent JSON
{
"id": "f0d9324b24534d06561c04a3c4c1312795104fac8f4722a2affb867d403486ba",
"pubkey": "8c081a7cb6034e8a056dfd76d4eb0f5cddd18587b513f6c681fbd8940fe83002",
"created_at": 1787463811,
"kind": 1,
"tags": [
[
"e",
"5ec4424bdff69bdd70c967af86083ddd5ad0795c54fad009ff69d33192bdc092",
"wss://relay.damus.io/",
"root",
"8c081a7cb6034e8a056dfd76d4eb0f5cddd18587b513f6c681fbd8940fe83002"
],
[
"e",
"319d547eb6324d623b4497eb5063c3dfc1a1d60bb4bce245ad49eea7f5024fc6",
"wss://relay.damus.io/",
"reply",
"8125b911ed0e94dbe3008a0be48cfe5cd0c0b05923cfff917ae7e87da8400883"
],
[
"p",
"8125b911ed0e94dbe3008a0be48cfe5cd0c0b05923cfff917ae7e87da8400883"
],
[
"client",
"jumble"
]
],
"content": "About kind 2004, I have no idea and don't even know who proposed it. The description says:\n\n\"This event works exactly like a kind 1 and should follow NIP-10 for tagging.\"\n\nOnly explanation I can come up with is that you can filter torrent comments: if your client doesn't support viewing 2003s seeing comments on that event would be odd. But then again I'm sure that's the case with other kinds already.",
"sig": "fee5bd78ad2126297aabb4bd22a267f37df75ef58bf56333b907d407ecc0b34e66ee8cceeb1076ff53f8f475e241e66e48b572f5a2f199888bab27997c36638d"
}