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 0x20475023a92e731495535208b8a57511fb49949063bb7643481862e9a1c6bf2e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02426ac3-fb99-43a0-93b4-b3053665f44a.json and https://artists.proofprofile.net/proofs/artist/02426ac3-fb99-43a0-93b4-b3053665f44a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vocalise No.2 The Dance of Day and Night