thumb| Georges Delvallée (born 15 March 1937 at Fourmies, Nord is a French organist. A student of Alfred Cortot, Delvallée prepared his licence for concert at the École normale de musique de Paris.
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 0x6d189b9c7567d52a5afbcc1200f6d7e89b9c4c540d718053fc73c7e031357820. Chain 2 (Bitcoin): anchored in block 953896 (2026-06-16T06:05:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10e9d2a5-959a-414f-8a41-f816ac95037c.json and https://artists.proofprofile.net/proofs/artist/10e9d2a5-959a-414f-8a41-f816ac95037c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tournemire-Symphonies pour orgue-Delvallee
L'orgue mystique, Cycle après la pentecôte, Op. 57: Office du 15ème dimanche après la pentecôte (No. 41) offertoire
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759e1527db3cf0e7e32e3e971bad2a47a3505bd049d14c4b68c381070e7cf0bc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ177000090.
Tournemire: L'orgue mystique (Aux grandes orgues de la cathédrale d'Orléans)
Tournemire: L'orgue mystique, Cycle de Noël, Op. 55: Office No. 4 "De Dominica infra Octavam Nativitatis": I. Prélude à l'introït
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22aa037e53800d4441cc088f0088d44986e2682e215ad7e07bcc62d66056088d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ201902199.
Tournemire: L'orgue mystique, Cycle de Noël, Op. 55: Office No. 4 "De Dominica infra Octavam Nativitatis": III. Élévation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecaf228c8eb1221355f48576e16561456a94e0a83fdc1f0a503d99e2dfa79e2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ201902201.
Les orgues de Masevaux - Musiques pour deux orgues
Sonates pour violon et orgue au XVIIIème siècle
Saqueboute, trombone et orgue en Italie aux XVIIe et XVIIIe siècles
Vierne : Intégrale de l'oeuvre pour piano