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 0xd9052149d3df7fca5bd53ab905dc5ea65912190365ca8413e13ca774042320db. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/84fd371e-76b2-4424-8c12-e218ca71247d.json and https://artists.proofprofile.net/proofs/artist/84fd371e-76b2-4424-8c12-e218ca71247d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Teenage Mutant Ninja Turtles (Out The Trap)