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 0x83e32407017dd5306815c97058f4b2451d9b5af49a1156c46561c0a13035f760. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/267dc9c3-c2a0-4d7c-86cf-e631c4f289a3.json and https://artists.proofprofile.net/proofs/artist/267dc9c3-c2a0-4d7c-86cf-e631c4f289a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
T5Jazz Records presents: Jazzy Christmas / Peaceful 2