Pierre-Marie François Pincemaille (8 December 1956 – 12 January 2018) was a French organist, improviser, and pedagogue. He was known for his organ improvisations, both in concert and on CD and for his
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 0x08140c452c5e4104e0b07ac9d96461826a17306c7b38a38177b4c90b69f7d06d. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be72564a-089e-49c1-84c7-e9dbe7ec4f30.json and https://artists.proofprofile.net/proofs/artist/be72564a-089e-49c1-84c7-e9dbe7ec4f30.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pincemaille : Improvisations sur des thèmes de Noël
Improvisations on European National Anthems, Vol. 1 (Great Stahlhuth-Jann-Orgel, Saint-Martin, Dudelange, Luxemburg)