thumb|401x401px|Catholic Church of Zym Zym (in Albanian) or Zjum (in Serbian; Зјум) is a village in the Prizren Municipality of southwestern Kosovo. Geography The settlement lies in the eastern part
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce24bdbe9165b3c3b91f431fb397e0841271556a975f3884361339f72987864d. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9df890db-c431-40a0-a058-49e9628ffa06.json and https://artists.proofprofile.net/proofs/artist/9df890db-c431-40a0-a058-49e9628ffa06.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).