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NIP-0a
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======
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Audio Events
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---------------
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`draft` `optional`
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This NIP defines several new event kinds representing different types of audio track. These events
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are _parameterized replaceable_ as defined in [NIP-01](./01.md) and deletable per [NIP-09](09.md).
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Unlike a `kind 1` event with audio attached, audio events are intended to be surfaced in an audio-specific context
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rather than in a general micro-blogging context.
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The following kinds are defined by this NIP:
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- `31337` represents a music track
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- `31338` represents a podcast episode
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The following tags are required:
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- `d` is a unique identifier randomly generated by the client.
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- `media` is the url of the media. This SHOULD NOT be read, but is required for backwards compatibility reasons.
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- `imeta` is as described in [NIP 92](./92.md). Multiple `imeta` tags MAY be included to provide for different
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use cases (e.g. streaming vs download).
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- `title` is the title of the audio track
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- `subject` is the title of the audio track (deprecated, but required for compatibility)
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The following tags are optional:
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- `i` is an external GUID in the format defined [here](https://github.com/MerryOscar/nips/commit/280eb498e0ac56b8f9356c1b7a88cc8b31579801).
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- `c` is the track's value as defined by a given category.
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- `website` is an external url to a website related to the track.
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- `duration` is the duration of the audio track, in seconds.
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- `published_at` is a timestamp representing the track's original publish date.
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Expected categories may include (but are not limited to):
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- `genre`
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- `subgenre`
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- `artist`
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- `record_label`
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- `producer`
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- `composer`
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- `album`
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- `track_number`
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- `tracks`
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- `bpm`
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- `year`
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Note that artists, producers, SHOULD be referred to using both a plaintext `c` tag AND a conventional `p` tag when pubkey is available. When doing so, the `p` tag's petname MUST be the same as the `c` tag's value. In this way `c` tags can be used to indicate genre, as well as artist, producer, etc.
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If included, `genre` and `subgenre` SHOULD be based on [this list](https://github.com/wavlake/genre-list).
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`content` SHOULD be summary or description of the audio content.
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Example:
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```json
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{
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"id": <event_id>,
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"pubkey": <author_pubkey>,
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"created_at": <created_at>,
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"kind": 31337,
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"content": "Chill beats",
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"tags": [
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["d", "<id>"],
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["c", "Pop", "genre"],
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["c", "EDM", "subgenre"],
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["c", "Columbia Records", "record_label"],
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["c", "AC/DC", "artist"],
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["i", "podcast:item:guid:123", "https://fountain.fm/episode/30uEXC25615Ze2ELjY2p"],
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["p", "2a07724d42fd8004b5c97b62ba03b6baf3919f9e8211667039987866997e97ad", "wss://my-relay.com", "AC/DC"],
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["title", "Platinum Robots on the Moon"],
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["subject", "Platinum Robots on the Moon"],
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["published_at", "<published_at>"],
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["imeta", "url https://example.com/my-track.m3u8", "x <hash>", ...]
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]
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}
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```
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2
51.md
2
51.md
@ -54,6 +54,8 @@ Aside from their main identifier, the `"d"` tag, sets can optionally have a `"ti
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| Kind mute sets | 30007 | mute pubkeys by kinds<br>`"d"` tag MUST be the kind string | `"p"` (pubkeys) |
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| Interest sets | 30015 | interest topics represented by a bunch of "hashtags" | `"t"` (hashtags) |
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| Emoji sets | 30030 | categorized emoji groups | `"emoji"` (see [NIP-30](30.md)) |
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| Music Playlist | 30037 | a list of kind `31337` music tracks | `"a"` (kind:31337 music tracks) |
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| Podcast Playlist | 30038 | a list of kind `31338` podcast episodes | `"a"` (kind:31338 podcast episodes) |
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| Release artifact sets | 30063 | groups of files of a software release | `"e"` (kind:1063 [file metadata](94.md) events), `"i"` (application identifier, typically reverse domain notation), `"version"` |
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### Deprecated standard lists
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@ -31,6 +31,7 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
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- [NIP-07: `window.nostr` capability for web browsers](07.md)
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- [NIP-08: Handling Mentions](08.md) --- **unrecommended**: deprecated in favor of [NIP-27](27.md)
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- [NIP-09: Event Deletion Request](09.md)
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- [NIP-0a: Audio Tracks](0a.md)
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- [NIP-10: Conventions for clients' use of `e` and `p` tags in text events](10.md)
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- [NIP-11: Relay Information Document](11.md)
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- [NIP-13: Proof of Work](13.md)
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@ -213,6 +214,8 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
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| `30618` | Repository state announcements | [34](34.md) |
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| `30818` | Wiki article | [54](54.md) |
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| `30819` | Redirects | [54](54.md) |
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| `31337` | Music Track | [0a](0a.md) |
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| `31338` | Podcast Episode | [0a](0a.md) |
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| `31388` | Link Set | [Corny Chat][cornychat-linkset] |
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| `31890` | Feed | [NUD: Custom Feeds][NUD: Custom Feeds] |
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| `31922` | Date-Based Calendar Event | [52](52.md) |
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