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 0x0e59389718ab8bc2f29ce9fcb04c87f45ccb9c3b01b62a3d9e161b4b73deb175. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91f8fcdc-4a93-4c96-b8ed-a7c7d386302c.json and https://artists.proofprofile.net/proofs/artist/91f8fcdc-4a93-4c96-b8ed-a7c7d386302c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Death of the Self-Preservation Society
The Death of the Self Preservation Society