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 0x2f57f1665e592111fc35c6f911e0606d0c2074a2dc24565bc9557eafd5feaccd. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e8494ff-ca1e-42ab-b158-2f6023b9c79d.json and https://artists.proofprofile.net/proofs/artist/1e8494ff-ca1e-42ab-b158-2f6023b9c79d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Like Father, Like Son / C.E.O. Freestyle