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 0x92b5def73fd7f6c48db4f4e93bda229fd027f73f6b7f110debeb93bebf022d8d. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/71cefec5-87a1-47b8-9848-9cbe4ad8b3dc.json and https://artists.proofprofile.net/proofs/artist/71cefec5-87a1-47b8-9848-9cbe4ad8b3dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Estives musicales sur l'orgue de Louvie-Juzon
Works for organ and keybords: Ballet du grand duc
Works for organ and Keybords: Chaconne P.43
Messe pour les paroisses: Cromorne en taille
Orgelbüchlein: Christ lag in Todesbanden BWV 718
Orgelbüchlein: Choral Ich ruf zu dir BWV 639
Organ works: Toccata et fugue D-Moll BWV 565