1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31291deb985b3c03228326e81b4985e3ace0245a8a0db5ea0835f79a51684d41. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f1a1a2c-c3b8-48d5-b03a-4ccb9523d415.json and https://artists.proofprofile.net/proofs/artist/9f1a1a2c-c3b8-48d5-b03a-4ccb9523d415.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chants de Noël (feat. Edmée Pache) [Mono Version]
Combats et victoires du chrétien (Mono Version)
7 chants pour les petits (feat. Edmée De Meyer) [Mono version]
5 cantiques de consécration (feat. Edmée Pache) [Mono Version]
Dix chants spirituels (feat. Edmée Pache) [Mono Version]
Chants spirituels (feat. Roger Fasnacht) [Mono Version]
Dix chants spirituels (feat. R. Fasnacht, J. P. Fasnacht, C. De Meyer, J. Tièche) [Mono version]