1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xe4d363a1ad6f6eb99bf0cf7753cadccaeedb368d2aacd0181f9a2af24f077f94. Chain 2 (Bitcoin): anchored in block 954055 (2026-06-17T05:51:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42eeff8f-104a-462d-bbf2-329299145b4b.json and https://artists.proofprofile.net/proofs/artist/42eeff8f-104a-462d-bbf2-329299145b4b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hoffmanova pesem iz prologa opere Hoffmanove pripovedke
Peer Gynt, OP. 23: NO. 19. Solveig's Song