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 0x2c25dc746d0e06d7aa4a9e4af4edb6ca6ad883348e7ed496e567fe46435f6c93. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4bea5e1b-6331-467a-9323-e9a2c4a2dfa5.json and https://artists.proofprofile.net/proofs/artist/4bea5e1b-6331-467a-9323-e9a2c4a2dfa5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Les Enfants Rouges (Original Soundtrack)