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 0xd71987a080a4295c8d1fdcfe4016561a967a233951d84a43ae033c07251586c6. Chain 2 (Bitcoin): anchored in block 953638 (2026-06-14T13:10:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37746ee2-31f9-4275-bd61-2774cbbe3c1d.json and https://artists.proofprofile.net/proofs/artist/37746ee2-31f9-4275-bd61-2774cbbe3c1d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Why Don't You Like Me When You're Sober?