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 0x9aa8fb5de1a46e206138f35ce396ae3238ad79965dde64d5f7fe19be4b57110a. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f37dd0ad-bdcb-4729-aaa8-014a3f107370.json and https://artists.proofprofile.net/proofs/artist/f37dd0ad-bdcb-4729-aaa8-014a3f107370.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Les vingt plus belles chansons de La Réunion (Ile de La Réunion)
C'est fou de passion (Ile de La Réunion)