Tiny notes (210 max chars)

B1.md

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+NIP-B1
+======
+
+Tiny Notes
+----------
+
+`draft` `optional`
+
+This NIP defines `kind:25` as a simple plaintext note that is limited to 210 **visible** characters.
+
+The `.content` property contains some human-readable text. 
+
+Clients MUST force outgoing `.content` to be less or equal to 210 characters and crop all incoming events to the same amount. 
+
+Relays MUST not accept `.content` with over 210 chars, considering the rules below.
+
+Markup languages such as markdown MUST NOT be used.
+
+Replies to `kind:25` MUST use [NIP-22](22.md) comments while applying the same `.content` rules as defined here.
+
+Reactions MUST use [NIP-25](25.md) with a `k` tag to `25`. Clients MUST only download and display reactions that include the `k=25` tag for its notifications.
+
+Zap Events MUST also include the `k` tag of the source event. Clients MUST only render zaps that include the `k=25` tag in notifications.
+
+## Cached Information
+
+Tiny notes strongly rely on in-event caches to speed up the rendering process and calculate the 210-char limit. 
+
+User citations MUST use a variation of [NIP-19](NIP-19)'s `nostr:nprofile` urls with a `4`th TLV type that receives the current display name of the user. The user's display name MUST be used to match the 210 limit. `p` tags SHOULD only be added if the logged-in user wants to notify the tagged user.
+
+Quoted notes that are `kind:25` MUST use [NIP-19](NIP-19)'s `nostr:nevent` with a `4`th TLV type including the quoted text. The quoted text MUST be used to match the 210 limit. The `q` tag MUST be added to all quoted events. 
+
+Quoted notes that are not `kind:25` MUST not be previewed or rendered by the client. Instead, the Client must render the quoted text from the TLV with a link. The link should open a separate app that can render those events using [NIP-89](https://github.com/nostr-protocol/nips/blob/master/89.md). The `q` tag MUST be used.
+
+Links to images MUST include [NIP-92](92.md) `imeta` tags with required fields: `url`, `m`, `blurhash`, `dim`, and `x` and should be previewed in full-width mode. If the `imeta` tags are not present, images MUST not be previewed and stay as a link. If the `x` hash doesn't match the file hash, the image should not be previewed and stay as a link.
+
+Links to websites MUST include [PR1674](https://github.com/nostr-protocol/nips/pull/1674) open graph tags and should be previewed in full-width mode. If the open graph tags are not present, url MUST not be previewed and stay as a link.