Roland Pidoux (29 October 1946 – 21 September 2025) was a French cellist and academic teacher. He was principal cellist of the Orchestre national de France from 1978 to 1987 and professor at the Conse
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcfb61605707eff2f1351d46d56a453aeb53875ea7ad3af6c651b6e44ecb3e14. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/130ab18e-86cd-4ec7-80c8-1b526e5161e7.json and https://artists.proofprofile.net/proofs/artist/130ab18e-86cd-4ec7-80c8-1b526e5161e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Trio pour piano, violon et violoncelle en Mi bémol majeur, Op. 100, D.929.: I. Allegro
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48ca14dabffcd68953f0701e0a8e1ec336e03b1c624ea8fc1c280f2537d502e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRZ148005010.
Trio pour piano, violon et violoncelle en Mi bémol majeur, Op. 100, D.929.: II. Andante con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7331ad045a7d540750a217245c4cace9848617af0fa53ab8f222b6bc301c58. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRZ148005020.
Trio pour piano, violon et violoncelle en Mi bémol majeur, Op. 100, D.929.: III. Scherzando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe771dfb064f149e31dc303654eb22011b0739aa304ae701f3f41dd9ba062cc2b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRZ148005030.
Trio pour piano, violon et violoncelle en Mi bémol majeur, Op. 100, D.929.: III. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa967e60ae3e48c6010d1bc5f11e3ca00333097c1df3bf0251f216e6dfa921f79. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/FRZ148005040.
Beethoven: L'oeuvre pour violoncelle et piano
Brahms: Clarinet Trio in A Minor, Op. 114 - Schoenberg: 3 Klavierstücke, Op. 11