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 0xabcf09534e204fe7ad89a9be65e8816e761b30bf6a95070383bf1aabc17da592. 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/a74a82ff-a8ff-44be-9844-ce4d57f057ca.json and https://artists.proofprofile.net/proofs/artist/a74a82ff-a8ff-44be-9844-ce4d57f057ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La retraite - Flavien Berger - Emo fantasy remix
La retraite - Ultramoderne - Chiptune remix
La retraite - Stophe - Glitchy bassline remix