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 0xab3715091e3d9e29cc711ae144bf265c4cfcff5e5611c4dd7d2ae750cdbe618f. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95ca5833-32f0-4d8d-9efd-dbd7f9aa4d1b.json and https://artists.proofprofile.net/proofs/artist/95ca5833-32f0-4d8d-9efd-dbd7f9aa4d1b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beyond the Notes Orchestrations Volume 1