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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51602fbeb2cae238c62ebffd49684992f0b393a0d12d20dfbc5ce57c3e81d6bf. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aca3816b-d0e3-4fc4-9cff-d569f9e46e43.json and https://artists.proofprofile.net/proofs/artist/aca3816b-d0e3-4fc4-9cff-d569f9e46e43.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wasps Changing Gear as They Make Their Way Uphill
Canto de la Golondrina Nocturna - Live in Barcelona