1.9 KiB
NIP-XX
External Content IDs
draft optional
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.
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.
Supported IDs
Books:
- Book ISBN:
["i", "isbn:9780765382030"]- https://isbnsearch.org/isbn/9780765382030
Book ISBNs MUST be referenced without hyphens as many book search APIs return the ISBNs without hyphens. Removing hypens from ISBNs is trivial, whereas adding the hyphens back in is non-trivial requiring a library.
Podcasts:
- Podcast RSS Feed GUID:
["i", "podcast:guid:c90e609a-df1e-596a-bd5e-57bcc8aad6cc"]- https://podcastindex.org/podcast/c90e609a-df1e-596a-bd5e-57bcc8aad6cc - Podcast RSS Item GUID:
["i", "podcast:item:guid:d98d189b-dc7b-45b1-8720-d4b98690f31f"]
Movies:
- Movie ISAN:
["i", "isan:0000-0000-401A-0000-7"]- https://web.isan.org/public/en/isan/0000-0000-401A-0000-7
Movie ISANs SHOULD be referenced without the version part as the versions / edits of movies are not relevant. More info on ISAN parts here - https://support.isan.org/hc/en-us/articles/360002783131-Records-relations-and-hierarchies-in-the-ISAN-Registry
Optional URL Hints
Each i tag MAY have a url hint as the second argument to redirect people to a website if the client isn't opinionated about how to interpret the id:
["i", "podcast:item:guid:d98d189b-dc7b-45b1-8720-d4b98690f31f", https://fountain.fm/episode/z1y9TMQRuqXl2awyrQxg]
["i", "isan:0000-0000-401A-0000-7", https://www.imdb.com/title/tt0120737]