What is the structure of ISAN?
ISAN has been designed to be read by humans and processed in information systems, as a 24-bit hexadecimal number or as a 96-bit binary number. The structure of ISAN has been designed to meet the diverse needs of the entire audiovisual supply chain. The ISAN, a 96-bit number is 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 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, different audio or subtitle tracks) can have different versions. When the 96-bit ISAN is represented in hexadecimal form it has 24 digits (made up of the numbers 0-9 and the letters A-F): 00000000D07A009000000000 However, a printed ISAN designed for human reading always begins wi
