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 0x515df9eb2142690245a5c8fb3ba6ebb5b54cd2dbec1b3905f62d042d3a8cb0bb. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04b31fa9-8b00-4830-ac4e-44011df47703.json and https://artists.proofprofile.net/proofs/artist/04b31fa9-8b00-4830-ac4e-44011df47703.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Delmark Records - 45 Years Of Jazz And Blues
You Can't Love What You Never Had - Live
You Done Lost Your Good Thing - Alternate