François Fernandez (born 22 February 1960) is a French classical violinist who specializes in historically informed performance. Career Born in Rouen in a family of musicians, Fernandez began learn
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 0x5ab160287f8a24db50dce71d69b4dee5175a7f7f0370dd58a77d50965f7f8443. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5cb379e-6f90-43ce-a4b5-0d71e41f8cf8.json and https://artists.proofprofile.net/proofs/artist/f5cb379e-6f90-43ce-a4b5-0d71e41f8cf8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bach: Musikalisches Opfer (The Musical Offering)
Musical Offering, BWV 1079, Regis issu cantio et reliqua canonica arte: II. Ricercar à 6
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 0x2111aeeec76974b91cd9a76df2783e408ace486d050a2529c250897af378a4ef. 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/FRU621223701.
Musical Offering, BWV 1079, Ricercar: Canon perpetuus super Thema Regium
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Musical Offering, BWV 1079, Sonata sopr'il Soggetto Reale à Traversa, Violino e Continuo: II. Allegro
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Musical Offering, BWV 1079, Canones diversi super Thema Regium: Canon 1 a 2
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Musical Offering, BWV 1079, Canones diversi super Thema Regium: Canon 4 a 2 per Augmentationem, contrario Motu
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Musical Offering, BWV 1079, Canones diversi super Thema Regium: Fuga canonica in Epidiapente
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Musical Offering, BWV 1079, Sonata sopr'il Soggetto Reale à Traversa, Violino e Continuo: I. Largo
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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
Musical Offering, BWV 1079, Sonata sopr'il Soggetto Reale à Traversa, Violino e Continuo: III. Andante
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Musical Offering, BWV 1079, Sonata sopr'il Soggetto Reale à Traversa, Violino e Continuo: IV. Allegro
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Musical Offering, BWV 1079, Sonata sopr'il Soggetto Reale à Traversa. Violino e Continuo.: VI. Canon perpetuus
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Musical Offering, BWV 1079, Canones diversi super Thema Regium: Canon 2 a 2 Violin : in Unisono
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Musical Offering, BWV 1079, Canones diversi super Thema Regium: Canon 3 a 2 per Motum contrarium
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Musical Offering, BWV 1079, Canones diversi super Thema Regium: Canon 5 a 2
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Musical Offering, BWV 1079, Canones diversi super Thema Regium: Ricercar a 6
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Musical Offering, BWV 1079, Quaerendo invenieti: Canon a 2
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Musical Offering, BWV 1079, Quaerendo invenieti: Canon a 4
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0be3fce25b85039331f2426bd6f8a9e1378c1e212acb84d081de56d6d618797. 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/FRU620704106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa238ceaee642f8779a0d5c73fa61a6ad9aabf522621fc128b2a1deef5d5b9ace. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FRU620704101.
Couperin: La Sultanne, Préludes & Concerts royaux
Sonderlich auff Violen: Musiques des XVIIe et XVIIIe siècles pour les violes de gambe
A Guided Tour of the Baroque Era, Vol. 2
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Monteverdi: Vespro della Beata Vergine, SV 206
Monteverdi: Vespro della Beata Vergine, SV 206: Invitatorium. "Deus, in adjutorium meum intende"
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Monteverdi: Vespro della Beata Vergine, SV 206: Psalmus. "Dixit Dominum"
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The Four Seasons, Violin Concerto in G Minor, RV 315 "L'estate": II. Adagio e piano – Presto e forte
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Monteverdi, Brevi, Cazzati, Bassani & Marcello: Motetti ed arie a basso solo
Jean-Philippe Rameau: Pygmalion, Ouverture (Live)
Sei Suonate À Violino Solo & Cembalo Concertato, Vol. 2
Sei Suonate À Violino Solo & Cembalo Concertato, Vol. 1
Corelli: Violin Sonatas Nos. 7-12, Op. 5
Violin Sonata No. 7 in D Minor, Op. 5, No. 7: III. Sarabanda: Largo
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Sonata in E Minor, No. 8: IV. Giga: Allegro
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Sonata in A Major, No. 9: II. Giga: Allegro
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Sonata in A Major, No. 9: IV. Tempo di Gavotta: Allegro
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Sonata in F Major, No. 10: I. Preludio: Adagio
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Sonata in F Major, No. 10: II. Allemanda: Allegro
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Violin Sonata No. 7 in D Minor, Op. 5, No. 7: I. Preludio: Vivace
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Violin Sonata No. 7 in D Minor, Op. 5, No. 7: II. Corrente: Allegro
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Violin Sonata No. 7 in D Minor, Op. 5, No. 7: IV. Giga: Allegro
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Sonata in E Minor, No. 8: I. Preludio: Largo
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Sonata in E Minor, No. 8: II. Allemanda: Allegro
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Sonata in E Minor, No. 8: III. Sarabanda: Largo
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Violin Sonata No. 11 in E Major, Op. 5, No. 11: II. Allegro
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Violin Sonata No. 11 in E Major, Op. 5, No. 11: V. Gavotta: Allegro
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Leclair: Sonates pour violon et basse continue, Livre IV
Leclair: Sonates pour violon et basse continue, Livre I
G.P. Telemann: Oboe Concerto in E Minor, TWV 51:e1: I. Andante - II. Allegro - III. Largo - IV. Allegro (Live)
La Bande des violons du Ricercar Consort
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac221189f8979e08e5e6e754989c8ffa5ec1b536a7b2c8985c2c955c030d4777. 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/BER189420509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5cd4ba85e3ee2155c62249d1b27cb0081b5b7c39e7956faefee19e81fdded2. 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/BER189420511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8cb6ee6959ee10ceb3465dde94e5881b8e69f64dd616143c23dc74d2ada028. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:26:27Z), 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/BER189420512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddec57747cc481c79e9ad5fc553bfd1451e5ff36b3527c290bb5e08f3556683. 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/BER189420517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa011dc5391d69aca3202b11e9c1ba220d267822844c67a961b2805c1ae4b15d3. 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/BER189420520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab182ac4cf299d38867579c3631a2ebac749a368dcd7dce404ad454cd6156618. 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/BER189420525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729699bf31d2ef2c551ce64a5479dc01c731c8dfc0f57e21c7df26f8f0e474e2. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/BER189420531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e9d1a8bd10d10afd56dd708b96996f1dcdde933ee71ac9426bf07ff9a495b2. 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/BER189420532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd5226c5bfab183683cac4480dfe0618b2a0b8cdd6b10f016e068d3b6f79a53. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/BER189420501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59fee48265e2f48097d3b96c286d07bf9424301edbd5bc41366bab8b339f1d8. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/BER189420502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f89dc1ba5ca3fb42ab307a69370150c5157ed3b255cb3de7d72121d9790f102. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/BER189420503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7625dda05c1ca09aaf9b0b6f8f65f9c399a29ae0cd44220a9802805f1447fa92. 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/BER189420518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89dd04b59ba0b237a12785cc394ecdfc5c18a35e2d0c646bb0280f1f5da656e3. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/BER189420519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04321fc1ea203a2de9eda80a08ca9b831a1aa13a453505dd52dff0b8dab6fb82. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BER189420521.
Concerto in D minor BWV 1052: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbdef42cd1269d56500fafe4fbdfae3330e6a1a4520525288e78e160fc6bdaba. 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/FR47Q1201060.
Concerto in D minor BWV 1052: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddd9744c5796623639e78b13da0cca4ba2d403c439751db5a90dba5480ced21. 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/FR47Q1201070.
Takako Nishizaki Plays Suzuki Evergreens, Vol. 5
24 Pieces de clavecin, Op. 1, Suite No. 1, X. Allegro: Allegro (Arr. For violin and piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f1d58803267257df7f6a5fe65cf5f0fcf8e38e3cff381a4d6c7d8d9a01ba01. 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/HKI190923707.
Jean-Baptiste Lully: Armide, LWV 71: Passacaille (Live)
Du Mont: Motets à voix seule - Hayne: Requiem pour Marie de Médicis