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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb669a4681e43e92e6f936fad7b924d90e22f71dff94dd7b31b1170af8817012. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d7af83d-304f-4788-a365-cf10fe0d9e3c.json and https://artists.proofprofile.net/proofs/artist/9d7af83d-304f-4788-a365-cf10fe0d9e3c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Benny Benassi ft. Gary Go - Cinema (CaZzinsk Bootleg)