Ensemble Instrumental Jean-Walter Audoli
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 0xdc39e5f0d7b4b9572ab7eef8e8ef2f01cae2d21c0371c44b55be0fa4f96c90e4. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44391714-73d7-4925-b59b-67c50f2ceeec.json and https://artists.proofprofile.net/proofs/artist/44391714-73d7-4925-b59b-67c50f2ceeec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sauguet : L'Oiseau a vu tout cela, Garden concerto, Sonate d'église
Paul Tortelier : Concertos pour violoncelle
Villa-Lobos: Concerto pour guitare et petit orchestre et Suite brésielienne
Suite populaire brésilienne, W020: I. Mazurka
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 0x230aee77005a547526c30173a931232e1ddfaa2d93a0a9e63b0147d0d96e6357. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR10S1739528.
Suite populaire brésilienne, W020: V. Chôrinho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb785bf9e71076fe63e52375324ddc609bd804182648d83748a9dd2e43822f8cc. 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/FR10S1739532.
Concerto pour guitare et petit orchestre, W501: I. Allegro preciso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d7df3040bee0004c4c1cd01ee6ede90ad96090fe751549a46eae8c6d3f81b7. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/FR10S1739523.
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
Concerto pour guitare et petit orchestre, W501: II. Andantino e andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3b5111f21874af47f4ca78ef4539176efef102148881379fd13a72b66c6cdd. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/FR10S1739524.
Concerto pour guitare et petit orchestre, W501: III. Cadence
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9be393b934b3147ec286602da99ef603afb030458a9c53e6545faed8ccca865. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/FR10S1739525.
Ibert : Symphonie concertante pour hautbois, Capriccio, Le jardinier de Samos, La suite symphonique "Paris"
Cantate des Béatitudes "Heureux vous les pauvres"
Felix Mendelssohn : Trois Grands Psaumes pour soli, chœur et orchestre
Benjamin Britten : Les Illuminations, Phaedra & Simple Symphony