ISO 24138:2024
(Main)Information and documentation — International Standard Content Code (ISCC)
Information and documentation — International Standard Content Code (ISCC)
This document specifies the syntax and structure of the International Standard Content Code (ISCC), as an identification system for digital assets (including encodings of text, images, audio, video or other content across all media sectors). It also describes ISCC metadata and the use of ISCC in conjunction with other schemes, such as DOI, ISAN, ISBN, ISRC, ISSN and ISWC. An ISCC applies to a specific digital asset and is a data-descriptor deterministically constructed from multiple hash digests using the algorithms and rules in this document. This document does not provide information on registration of ISCCs.
Information et documentation — Code international normalisé de contenu (ISCC)
Informatika in dokumentacija - Mednarodna standardna koda digitalne vsebine (ISCC)
General Information
Standards Content (Sample)
International
Standard
ISO 24138
First edition
Information and documentation —
2024-05
International Standard Content
Code (ISCC)
Information et documentation — Code international normalisé
de contenu (ISCC)
Reference number
© ISO 2024
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Published in Switzerland
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Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Structure and format of the ISCC . 4
4.1 General structure .4
4.2 ISCC-HEADER . .5
4.2.1 General .5
4.2.2 MainTypes .6
4.2.3 SubTypes .7
4.2.4 Version .7
4.2.5 Length .7
4.3 ISCC-BODY.8
4.4 Encoding .8
4.4.1 Canonical form .8
4.4.2 URI encoding .9
4.4.3 Multiformats encoding.9
4.4.4 Readable encoding .9
5 ISCC-UNITs .10
5.1 Meta-Code .10
5.1.1 General .10
5.1.2 Purpose .10
5.1.3 Format.10
5.1.4 Inputs .10
5.1.5 Outputs . 12
5.1.6 Seed metadata processing . 12
5.1.7 Metadata embedding . 13
5.1.8 Metadata extraction . 13
5.2 Content-Codes .14
5.2.1 General .14
5.2.2 Purpose .14
5.3 Content-Code Subtype Text .14
5.3.1 General .14
5.3.2 Format.14
5.3.3 Inputs . 15
5.3.4 Outputs . 15
5.3.5 Processing . 15
5.3.6 Conformance . 15
5.4 Content-Code Subtype Image .16
5.4.1 General .16
5.4.2 Format.16
5.4.3 Inputs .16
5.4.4 Outputs .16
5.4.5 Processing .16
5.4.6 Conformance .17
5.5 Content-Code Subtype Audio .17
5.5.1 General .17
5.5.2 Format.17
5.5.3 Inputs .17
5.5.4 Outputs .18
5.5.5 Processing .18
5.5.6 Conformance .18
iii
5.6 Content-Code Subtype Video.18
5.6.1 General .18
5.6.2 Format.18
5.6.3 Inputs .19
5.6.4 Outputs .19
5.6.5 Processing .19
5.6.6 Conformance .19
5.7 Content-Code Subtype Mixed .19
5.7.1 General .19
5.7.2 Format. 20
5.7.3 Inputs . 20
5.7.4 Outputs . 20
5.7.5 Processing .
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