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- International Standard Serial Number (category Checksum algorithms)namespaces are case-sensitive, and the ISSN namespace is all caps. If the checksum digit is "X" then it is always encoded in uppercase in a URN. The URNs...20 KB (2,225 words) - 12:38, 15 April 2023
- International Standard Music Number (category Checksum algorithms)ISMN 979-0-9016791-7-7. Given first 12 digits 979-0-9016791-7, the ISMN algorithm evaluates 1×9 + 3×7 + 1×9 + 3×0 + 1×9 + 3×0 + 1×1 + 3×1 + 1×6 + 3×7 +...5 KB (624 words) - 12:37, 15 April 2023
- International Standard Book Number (category Checksum algorithms)prepending "978" to the ISBN-10 and recalculating the final checksum digit using the ISBN-13 algorithm. The reverse process can also be performed, but not for...54 KB (6,204 words) - 12:31, 15 April 2023