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 0x379b3b9fcdbe1af2fd9e0bdfd9457133056a06a735ce882462f522a81f254331. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ab61b46-dd2d-41dd-bd58-06a1a3230b85.json and https://artists.proofprofile.net/proofs/artist/9ab61b46-dd2d-41dd-bd58-06a1a3230b85.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Makina Remember (Los Grandes Exitos De La Música Mákina)