From 65a827dab317181760f6d1812b0cc17020b8c97b Mon Sep 17 00:00:00 2001 From: Vitor Pamplona Date: Thu, 18 Dec 2025 21:30:04 -0500 Subject: [PATCH] Public Messages (#1988) --- A4.md | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 A4.md diff --git a/A4.md b/A4.md new file mode 100644 index 00000000..36751c14 --- /dev/null +++ b/A4.md @@ -0,0 +1,56 @@ +NIP-A4 +====== + +Public Messages +--------------- + +`draft` `optional` + +This NIP defines kind `24` as a simple plaintext message to one or more Nostr users. + +The `.content` contains the message. `p` tags identify one or more receivers. + +```jsonc +{ + "pubkey": "", + "kind": 24, + "tags": [ + ["p", "", ""], + ], + "content": "", +} +``` + +Messages MUST be sent to the [NIP-65](65.md) inbox relays of each receiver and the outbox relay of the sender. + +Kind `24` is designed to be shown and replied to from notification screens. The goal is to allow clients to +support this feature without having to worry about chat history. There are no message chains. The concept of a +"thread", a "thread root", or a "chatroom" does not exist in this system, as messages can start and continue +without any syntactic connection to each other. `e` tags must not be used. + +This kind is not designed to be displayed on feeds, but anyone can see and reply to messages that may not be for them. + +## Advanced Support + +[NIP-40](40.md) `expiration` tags are recommended. Since there is no concept of a chatroom, it is unlikely that these messages will +make sense as time goes on. + +[NIP-18](18.md) quote repost `q` tags MAY be used when citing events in the `.content` with [NIP-21](21.md). + +```json +["q", " or ", "", ""] +``` + +[NIP-25](25.md) reactions MUST add a `k` tag to `24`. + +[NIP-57](57.md) zaps MUST include the `k` tag to `24` + +[NIP-21](21.md) links that use [NIP-19](19.md)'s `nevent1` MUST include a `kind` of `24`. Links that are not `kind:24` are not expected to be rendered natively by the client. + +[NIP-92](92.md) `imeta` tags SHOULD be added for image and video links. + +## Warnings + +There MUST be no expectation of privacy in this kind. It is just a public reply, but without a root note. + +Avoid confusing this kind with Kind `14` rumors in [NIP-17](17.md) DMs. This kind is signed and designed for public consumption.