httppayai

UuidCheck402

Analyze a SET of identifier strings (UUIDs in any written form, plus ULIDs) in one call: per-ID form, version, variant and embedded timestamp where the format carries one, duplicate groups across case and format variants, a version census, and the k-sortability verdict (does lexical string order agree with embedded-time order?). POST a JSON body: ids (array of strings, 1-10000). Standards stated on the response: RFC 9562 / ULID spec. Invalid input is returned free (settlement is cancelled on failure).