This NIP defined a new `kind 2003` which is Torrent.
`kind 2003` is a simple torrent index where there is enough information to search for content and construct the magnet link. No torrent files exist on nostr.
## Tags
-`btih`: V1 BitTorrent Info Hash, as seen in the [magnet link](https://www.bittorrent.org/beps/bep_0053.html) `magnet:?xt=urn:btih:HASH`
-`file`: A file entry inside the torrent, including the full path ie. `info/example.txt`
In order to make torrents searchable by general category, you SHOULD include a few tags like `movie`, `tv`, `HD`, `UHD` etc.
## Tag prefixes
Tag prefixes are used to label the content with references, ie. `["t", "imdb:1234"]`
-`tcat`: A comma separated text category path, ie. `["t", "tcat:video,movie,4k"]`, this should also match the `newznab` category in a best effort approach.
-`newznab`: The category ID from [newznab](https://github.com/Prowlarr/Prowlarr/blob/develop/src/NzbDrone.Core/Indexers/NewznabStandardCategory.cs)
-`tmdb`: [The movie database](https://www.themoviedb.org/) id.
A second level prefix should be included where the database supports multiple media types.
-`tmdb:movie:693134` maps to `themoviedb.org/movie/693134`
-`ttvdb:movie:290272` maps to `thetvdb.com/movies/dune-part-two`
-`mal:anime:9253` maps to `myanimelist.net/anime/9253`
-`mal:manga:17517` maps to `myanimelist.net/manga/17517`
In some cases the url mapping isnt direct, mapping the url in general is out of scope for this NIP, the section above is only a guide so that implementers have enough information to succsesfully map the url if they wish.
