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 0x3103265900628b0064a5ab6faf99868a7ca3f55407ae6eb4d44a95f74c928e91. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/134f97fa-9902-40f1-8230-f9f8465f909f.json and https://artists.proofprofile.net/proofs/artist/134f97fa-9902-40f1-8230-f9f8465f909f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jerome Richardson. Complete 1958-1962 Recordings. Midnight Oil / Roamin' with Richardson / Meeting in Studio (Sastanak U Studiju) / Going to the Movies