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31 lines
783 B
Markdown
31 lines
783 B
Markdown
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NIP-XX
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======
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External Content IDs
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-------------------------
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`draft` `optional`
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There are certain established global content identifiers that would be useful to reference in nostr events so that clients can query all events assosiated with these ids.
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- Book [ISBNs](https://en.wikipedia.org/wiki/ISBN)
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- Podcast [GUIDs](https://podcastnamespace.org/tag/guid)
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- Movie [EIDRs](https://www.eidr.org)
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Since the `i` tag is already used for similar references in kind-0 metadata events it makes sense to use it for these content ids as well.
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## Supported IDs
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### Books:
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- Book ISBN: `["i", "book:isbn:123"]`
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### Podcasts:
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- Podcast Feed GUID: `["i", "podcast:guid:123"]`
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- Podcast Item GUID: `["i", "podcast:item:guid:123"]`
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### Movies:
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- Movie EIDR: `["i", "movie:eidr:123"]`
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