Number Format
The ISAN is a 96-bit number comprising three segments: a 40-bit root, a 16-bit episode or part, and a 32-bit version.
A root is assigned to a core work by ISAN. Subsequent film parts or television episodes (usually the studio production number) that relate to the root work can have the same root, but a different 'episode or part' component (if a core work does not have associated parts or episodes, then the episode segment is filled with zeros). Works (and their episodes or parts) that have been modified in some way — for example, dubbing, 24/30/25 frame conversions and subtitling the work into other languages — can have different versions. When the 96-bit ISAN is represented in hexadecimal form it has 24 digits, for example: 000000018947000000000000.
However, a printed ISAN designed for human reading always begins with the ISAN label, appears with hyphens to separate the number into more manageable groups of digits, and adds two check characters (alphanumeric) to help identify transcription errors. The resulting number appears as: ISAN 0000-0001-8947-0000-8-0000-0000-D
ISAN-IA has also developed a recommended practice for encoding the ISAN in a two-dimensional barcode 96 pixels square.
An ISAN is a centrally registered and permanently assigned reference number. The work or content it references is identified by a metadata set registered with ISAN-IA. Appointed Registration Agencies and ISAN-IA work together to prevent duplicate assignments of ISANs with the same metadata set. The ISAN metadata set includes the title (original and alternative), cast (director, actors, producer, screenwriter, etc...), type of works (movie, documentary, TV series or entertainment show, sport events, video games, etc...), duration, year of production and dozens of other fields related to the work. This metadata applies to all type of audiovisual works, including their related versions of trailers, excerpts, videos and broadcasts.
The Microsoft High Capacity Color Barcode will be used too.
Read more about this topic: International Standard Audiovisual Number
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