Orchestre de Chambre National de Toulouse
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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 0xbb5f6c6c8e2aeb0710b86c1a9039a9a610f80472f3155875d10de8c7d6d72cde. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26dbce5c-d778-4afa-9edc-7dccc8f49af7.json and https://artists.proofprofile.net/proofs/artist/26dbce5c-d778-4afa-9edc-7dccc8f49af7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Thierry Caens : Portrait d'un trompettiste
Françaix : Symphonie d'archets - Portraits d'enfants
Brandenburg Concerto No. 1 in F Major, BWV 1046: I. —
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 0xdd69afc3cadb8a6bc1d69fd15ef42ddbcb9c4ec5741f5dbbb481d408443c4398. 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/FRX290500171.
Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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Herz und Mund und Tat und Leben, BWV 147: X. Jesus bleibet meine Freude - Arr. for Choir
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Komm süsser Tod, BWV 478 - Arr. for Choir by Knut Nystedt
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Matthäuspassion, BWV 244: Kommt, ihr Töchter, helf mir klagen
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Le messie, HWV 56: Alleluia - Arr. by Wolfgang Amadeus Mozart
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3060d411ed9ea417c87e0b00e626863d2f609ff318999458d5aa5f3fc9d75189. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR10S1703073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe870d867b9f8b7f16275c8a3ef3aa8dd68569ea167dfe704e90f20acc5c5703. 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/FR10S1703080.
Haydn : Concertos pour trompette, cor et trombone
Concerto en mi bémol majeur pour trompette, Hob. 7e:1: Finale - Allegro
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Concerto n°1 en ré majeur pour cor, Hob. 7d:3: Allegro
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Concerto n°1 en ré majeur pour cor, Hob. 7d:3: Adagio
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Concerto n°2 en ré majeur pour cor, Hob. 7d:1: Allegro
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Concertino ré majeur pour cor, trombone & alto: Allegro molto
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Concerto en mi bémol majeur pour trompette, Hob. 7e:1: Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf63975cffea7d209414d6fe54d4a27ba42af87a6c4c252e541145bcf6fcf53. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/FRZ299437010.
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 en mi bémol majeur pour trompette, Hob. 7e:1: Andante cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b222608d8b45abc739a388ea45cb4e4f3ae6d06c7cd737a294051c902d1e02. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/FRZ299437020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bd972ebe6d86c7d66fb82fa88b02ac47ee155db11b9c9815a2781030b2beed. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FRZ299437060.
Concerto n°2 en ré majeur pour cor, Hob. 7d:1: Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a9c7de43cb5b17c98c349f8fa2391a0e61a08eab2479b2f546571e9270ea19. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FRZ299437070.
Concerto n°2 en ré majeur pour cor, Hob. 7d:1: Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5e20891cd873eb4349533a8681584e4a671eae1417080f5be63d34b2316ae3. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/FRZ299437080.
Concertino ré majeur pour cor, trombone & alto: Adagio
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Cantabile pour violon et orchestre à cordes in D Major
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a98373ce79108b9617bb24f3184530ad2fe57682e2fcdd847fa68e00d28161. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRZ179602620.
Cançoneta pour violon et orchestre à cordes
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Guitarre pour violon et orchestre à cordes
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ea112454fe9e57efc3435cecaebb323b7b415b19955411829df7bb1d17d95c. 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/FRZ179602660.
Liebesleid pour violon et orchestre à cordes
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Liebesfreud pour violon et orchestre à cordes
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Suite No. 3 pour violon et orchestre à cordes in D Major, BWV 1068: Aria
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Zigeunerweisen pour violon et orchestre à cordes (Airs bohémiens), Op. 20
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29ea85c3860d1ba43dfa589a821cf1884e03be8ca0a812dd5c67e1a4d1f3568. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/FRZ179602630.
Concerto en do majeur pour violoncelle: Adagio
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Concerto en do majeur pour violoncelle: Allegro molto
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Concerto en ré majeur pour violoncelle: Adagio
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Concerto en do majeur pour violoncelle: Moderato
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Concerto en ré majeur pour violoncelle: Allegro moderato
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Concerto en ré majeur pour violoncelle: Rondo
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Eric Aubier - Classical Trumpet Concertos
Landowski, Lesur, Chaynes : Les cordes françaises au 20ème siècle
Tchaïkovski - Glazounov : Sérénades russes
Danses pour harpe et orchestre: Danse profane
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Introduction et Allegro pour harpe, flûte, clarinette et quatuor à cordes en Sol Mineur
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Britten: Variations on a Theme of Franck Bridge
Les quatre saisons, Le printemps: Allegro
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Les quatre saisons, Le printemps: Largo e pianissimo sempe
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Les quatre saisons, Le printemps: Danza pastorale allegro
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Les quatre saisons, L'été: Allegro con molto
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Les quatre saisons, L'automne: Adagio molto
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Les quatre saisons, L'hiver: Allegro non molto
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Concerto en ré majeur pour luth & cordes, Rv 93: Allegro giusto
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Concerto en ré majeur pour luth & cordes, Rv 93: Largo
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Concerto en ré majeur pour luth & cordes, Rv 93: Allegro
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Concerto en do majeur pour mandoline & cordes, Rv 425: Allegro
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Concerto en do majeur pour mandoline & cordes, Rv 425: Largo
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Mozart W.A & L. - Symphonie des Jouets - Plaisanteries Musicales
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Menuets pour 2 violons & basse, Kv 65a (61b): n°3
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Menuets pour 2 violons & basse, Kv 65a (61b): n°4
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Menuets pour 2 violons & basse, Kv 65a (61b): n°7
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Plaisanterie Musicale, K. 522: Adagio cantabile
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Menuets pour 2 violons & basse, Kv 65a (61b): n°2
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Menuets pour 2 violons & basse, Kv 65a (61b): n°5
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Concerto pour violon No. 1 in A Minor, BWV 1041: I. Allegro
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Concerto pour violon No. 1 in A Minor, BWV 1041: II. Andante
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Concerto pour violon No. 1 in A Minor, BWV 1041: III. Allegro assaï
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Concerto pour violon No. 2 in E Major, BWV 1042: I. Allegro
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Concerto pour violon No. 2 in E Major, BWV 1042: II. Adagio
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Concerto pour 2 violons in D Minor, BWV 1043: I. Vivace
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Concerto pour 2 violons in D Minor, BWV 1043: II. Largo ma non tanto
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Concerto pour violon et hautbois in D Minor, BWV 1060: II. Adagio
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Concerto pour violon No. 2 in E Major, BWV 1042: III. Allegro assaï
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Concerto pour 2 violons in D Minor, BWV 1043: III. Allegro
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Concerto pour violon et hautbois in D Minor, BWV 1060: I. Allegro
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Concerto pour violon et hautbois in D Minor, BWV 1060: III. Allegro
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