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 0x61efb5b039805a8cda90fc3d6626c316836e4ec7265b92c0666600c12d045d9d. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c4f2a32-5058-439a-a80e-8bb4ff86f1e2.json and https://artists.proofprofile.net/proofs/artist/1c4f2a32-5058-439a-a80e-8bb4ff86f1e2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tweakin Off X (Chapter 4) Alone in Hollywood