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 0x860c2381b0aa10066c254793befaf839537182476930c3b78af72312b9c1b3dc. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7a071e8-d7bb-43be-87d8-3a67482cd288.json and https://artists.proofprofile.net/proofs/artist/b7a071e8-d7bb-43be-87d8-3a67482cd288.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Loin dans les terres (Live at Theater Gütersloh) [European Jazz Legends Vol. 11]
Avant la marche - Live at Theater Gütersloh
Des bruits à tisser - Live at Theater Gütersloh
Loin dans les terres - Live at Theater Gütersloh