What ISSN (Serial Standard) requires
International Standard Serial Number (ISSN) compliance mandates stringent data integrity and structural validation for all applicable serial publications. A designated 'issn' field must be present and conform to the canonical 'NNNN-NNNC' format, where the final character is a digit or an uppercase 'X'. The unhyphenated string must possess a length of exactly 8 characters, comprising seven initial digits and a final valid check character. Correctness is further enforced through a 'Modulo 11' checksum calculation, which algorithmically validates the eighth digit based upon the preceding seven. An ISSN is required for asset types classified as 'serial', 'journal', 'magazine', 'newsletter', or 'periodical'. Procedurally, the existence of an ISSN implies the mandatory presence of a corresponding, non-null publication title. Uniqueness is paramount; the system prohibits duplicate ISSN assignment across distinct publication titles. For external verification, each ISSN must be confirmed as officially registered and active through an API lookup against the ISSN International Centre's portal. Finally, if a single publication title has more than one format-specific identifier, the designation of a linking ISSN-L becomes a requirement to ensure cohesive resource identification. This comprehensive rule set ensures all managed serials adhere to global cataloging and identification standards.
Pillar: Creative, Content & Media IP · Authority: International ISSN Centre · Version: 1.1.0 · Last updated:
Primary source: https://www.issn.org/
SHA-256 integrity: 7102c40dcfbf5c5ce2d899b00d6c0a80a8fe9dca91f9e68c7ecda8ebadd06fe1
Primary Citations — 6 traced to source
- {"citation_id":"ISO-3297-2020","jurisdiction":"Global","title":"ISO 3297:2020: Information and documentation - International standard serial number (ISSN)","description":"The foundational international standard that defines the structure, assignment, and use of the 8-digit ISSN for the unique identification of serials and other continuing resources.","url":"https://www.iso.org/standard/73333.html"}
- {"citation_id":"NISO-Z39.9","jurisdiction":"USA","title":"ANSI/NISO Z39.9-1992 (R2001): International Standard Serial Numbering (ISSN)","description":"The U.S. National Standard that adopts ISO 3297, providing the basis for ISSN assignment and usage within the United States, managed by the U.S. ISSN Center at the Library of Congress.","url":"https://www.niso.org/publications/z399-1992-r2001"}
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Access
- Discovery (free): /api/v1/nodes/issn-serial-standard.json — 6-field metadata
- Vault (full node): /api/v1/vault/nodes/issn-serial-standard.json — full 13-key payload, $0.01 USDC (L402/Skyfire/Direct Base)
- Canonical URL: https://bidda.com/intelligence/issn-serial-standard
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