Pierre Eugène Charles Cochereau (9 July 1924 – 6 March 1984) was a French organist, improviser, composer, and pedagogue. Cochereau was titular organist of the cathedral of Notre-Dame de Paris from 19
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 0xd671483b96c92405dc4a95bc0b3b31cc8c091e5a43ffeb515a99a1fb1e9d72c5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d75ba579-60a6-4ae8-82f0-f6854c1fea01.json and https://artists.proofprofile.net/proofs/artist/d75ba579-60a6-4ae8-82f0-f6854c1fea01.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Récital d'orgue (Aux grandes orgues de la cathédrale Notre-Dame de Paris) (Mono Version)
Poulenc: Concerto for Organ, Strings and Timpani & Cochereau: Organ Improvisations
Cochereau: 2 Improvisations in Concert at Notre-Dame in Paris
Cochereau: Improvisations for Organ on Easter Themes
Cochereau: Improvisations for Organ on Christmas Themes
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f056179799729ef8491eb453e283e46a2358e3141f451f0ea72544704886cc2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FRY837305310.
Cochereau: The organist of Notre-Dame in Paris
Great Hours of Liturgy at Notre-Dame in Paris
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Prose of Easter (Victimae Paschali Laudes)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0527b1201ab4fc26c221fd3c1196073fb08c21cccb79fc11ea7f2a4df92fc2a3. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:55:08Z), 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/FRY837310270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd415a732d5d3617b30930eba52d158c018f17f8badf56a373283984ad0414aae. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FRY837710980.
Prose of the Consecration (Jerusalem et Sion Filiae)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69721bb6e684926639569772775bb47fe31e3951f15b7c7fee0f449739b2a2c4. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:01:23Z), 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/FRY837310290.
Cochereau: 2 Improvised Symphonies for Organ
Purcell, Bach, Delerue, Cochereau: Works for Organ/Organ & Trumpet
Pierre Cochereau aux grandes orgues de Notre-Dame de Paris
Cochereau: Improvisations In Concert At Notre-Dame-in Paris
J.S. Bach - Toccata And Fugue in D Minor bwv 565
Cochereau in Concert at Notre-Dame in Paris
Cochereau: Two Improvisations In Form Of Suites
Vierne: Symphony No. 2 in E Minor & Dupré: Symphonie-Passion, Op. 23
De Saint-Martin, Mouret, Vierne, Messiaen, Cochereau: Organ Works
Liszt, Cochereau: Organ Works at Notre-Dame in Paris
Cochereau: An Organ Recital at Notre-Dame in Paris
Grandes Orgues De Notre-Dame De Paris, Vol. 1
Grandes orgues de notre-dame de Paris, vol. 2
Grandes Orgues De Notre-Dame De Paris, Vol. 3
Grandes orgues de notre-dame de Paris, vol. 4
Symphony No. 3 in C Minor, Op. 78 "Organ Symphony": Ia. Adagio – Allegro moderato –
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Symphony No. 3 in C Minor, Op. 78 "Organ Symphony": IIa. Allegro moderato – Presto –
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Boléro sur un thème de charles racquet pour grand
Trois siècles d'orgue à Notre Dame de Paris
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Symphony No. 3 in C Minor, Op. 78 "Organ Symphony": Ib. Poco adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0b8aaa9a0f8469f7ce354332c69a65a29474fbc8c0c87e980b15523bfc3393. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEF058100972.
Symphony No. 3 in C Minor, Op. 78 "Organ Symphony": IIb. Maestoso – Allegro
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