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 0xe04c2603ff976b36f51cbc7e09b8a1627b6f9d71991c9509079103a920b60b7a. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c836f1ee-d84f-4ccd-8d0e-baa395e8a00c.json and https://artists.proofprofile.net/proofs/artist/c836f1ee-d84f-4ccd-8d0e-baa395e8a00c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
T R I A L S _&_ T R I B U L A T I O N S_ pt. 2