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 0xcbe624a764beb8d29550427b8ec22314b7eceb2e6a3c472e8293aec63321ebb7. 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/a09fd498-d3b3-42ba-8740-090d3d86af51.json and https://artists.proofprofile.net/proofs/artist/a09fd498-d3b3-42ba-8740-090d3d86af51.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Joy To The World (Not Your Grandmas Version)