International Standard Audiovisual Number (ISAN) is a unique identifier for audiovisual works and related versions, similar to ISBN for books. It was developed within an ISO (International Organization for Standardization) TC46/SC9 working group. ISAN is managed and run by ISAN-IA. For the band called ISAN see Isan (band International Standard Audiovisual Number ( ISAN) is a unique identifier for audiovisual works and related
The ISAN standard (ISO standard 15706:2002 & ISO 15706-2) is recommended or required as the audiovisual identifier of choice for producers, studios, broadcasters, Internet media providers and video games publishers who need to encode, track, and distribute video in a variety of formats. The ISO 15706-2 is the ISO standard, an extension to the existing 2002 published standard ISO 157062002 It provides a unique, internationally recognized and permanent reference number for each audiovisual work and related versions registered in the ISAN system.
ISAN identifies works throughout their entire life cycle from conception, to production, to distribution and consumption. Its core strength lies in its universal benefits and long-term stability.
ISANs can be incorporated in both digital and physical media, such as theatrical release prints, DVDs, publications, advertising, marketing materials and packaging, as well as licensing contracts to uniquely identify works.
The ISAN identifier is incorporated in many draft and final standards such as AACS, DCI, MPEG, DVB, and ATSC. The Advanced Access Content System ( AACS) is a standard for Content distribution and Digital rights management, intended to restrict access The Moving Picture Experts Group, commonly referred to as simply MPEG, is a Working group of ISO / IEC charged with the development of video and 
The ISAN is a 96-bit number comprised of three segments: a root, an episode or part, and a version.
A root is assigned to a core work. Subsequent film parts or television episodes 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, 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. In Mathematics and Computer science, hexadecimal (also base -, hexa, or hex) is a Numeral system with a
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 (made up of the letters A–Z) 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. A bar code (also barcode) is an optical Machine-readable representation of data In Digital imaging, a pixel ( pict ure el ement is the smallest piece of information in an image
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. Metadata ( meta data, or sometimes metainformation) is "data about data" of any sort in any media 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.
ISAN-IA (ISAN International Agency) is a Geneva-based non-profit association, founded in 2003, by AGICOA, CISAC, and FIAPF to run the ISAN standard. Geneva (Genève is the second-most populous city in Switzerland (after Zürich) and is the most populous city of Romandy (the French -speaking The FIAPF ( Fedération International des Associations de Producteurs de Films; English International Federation of Film Producers Associations) based in
ISAN-IA is in charge of:
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