Les Sacqueboutiers, formerly Les Saqueboutiers de Toulouse, are French early music wind and brass ensemble founded in 1976 by Jean-Pierre Canihac and Jean-Pierre Mathieu at Toulouse. They play the cor
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 0xda63569ec25944ab3a100e066ad07782779ee35b7fac8e5f61e6d753caaa4f30. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/590b1122-5a8b-48f5-9a59-5ddc7591f116.json and https://artists.proofprofile.net/proofs/artist/590b1122-5a8b-48f5-9a59-5ddc7591f116.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x6551b9d532b8a279a40a18376c5be7b87746a042997d5ed5d096e07488081060. 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/FRZ139700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d55b4bb660a8c1acbeead53c41b8e72a8b538ebd048620224f6a2abac8635ef. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRZ139700051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42f4d654e12a1512b0a3c4b646f715d4c8a11b6474c7b9ac1a41e67dd449691. 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/FRZ130100302.
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Missa l'homme armé sexti toni: IV. Sanctus
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Missa l'homme armé sexti toni: V. Agnus Dei
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Missa Gaudeamus: VI. Timete Dominum omnes sancti ejus
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Missa l'homme armé sexti toni: VI. Sanctorum meritis "Hymne des martyrs"
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Missa Hercules Dux Ferrariae: VIII. Miserere, mei deus
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Recordare, Virgo Mater: I. Recordare, Virgo Mater
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Missa Philippus Rex Hispaniae: I. Introduction instrumentale
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L'Orfeo, Act II Scenes 2 and 6: Recitativo, "Tristi auguri alle nozze? O rimedio e squisito!" - Aria, "Amanti, amanti se bramate" (Vecchia)
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Vergnügte Ruh, beliebte Seelenlust, BWV 170: I. Aria "Vergnügte Ruh, beliebte Seelenlust"
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Gradual of Eleanor of Brittany: Kyrie: Orbis factor
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Missa solemnis in D Major, Op. 123: Agnus Dei
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Cain overo Il primo omicidio, IAS 40, Parte Prima: Duetto "La fraterna amica pace" (Abel, Caino)
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Stabat Mater, RV 621: VIII. Fac ut ardeat
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Stabat Mater, P. 77: V. Quis est homo, qui non fleret
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Magnificat in D Major, BWV 243: I. Magnificat anima mea Dominum
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Air: Das Beste des Barock - Bach, Händel, Vivaldi und weitere
Brade, G. Gabrieli & Scheidt: Tuba mirum
Giovanni Paolo Cima: Concerti Ecclesiastici
30th anniversary Les Arts Florissants compilation
Monteverdi: Vespro della Beata Vergine, SV 206: Invitatorium. "Deus, in adjutorium meum intende"
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Purcell: Dido and Aeneas, Z. 626, Act III: Song. "When I Am Laid in Earth" (Dido)
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Gandrille: Magnificat, Op. 50: III. Quia respéxit
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Gandrille: Magnificat, Op. 50: X. Sicut locutus est
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Gandrille: Magnificat, Op. 50: XI. Gloria Patri
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Gautier de Coincy: Hui matin a l'ajournée
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Anonymous: Occidentem illustrat oriens (Responsory for the Office of the Crown of Thorns)
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The Italian Masters - A Complete Selection
Requiem: Musiques pour les funérailles royales Espagnoles
Voyage musical en Nouvelle-Espagne sur les traces de Hernán Cortés
Reis Gloriòs: L'influence de la musique arabe dans la mythologie occitane
Venise sur Garonne: Canzonas & Sonatas by Giovanni Gabrieli
Le jazz et la pavane: L'improvisation à travers les siècles
Rabelais: Fay ce que vouldras - Plaisirs de gorge et joyeux instruments
Clair obscur dans le sillage du Caravage (Ombres et lumières dans la musique italienne du XVIIe siècle)
Monteverdi: Il Combattimento di Tancredi e Clorinda
Vespro della Beata Vergine, SV 206: VI. Laetatus sum
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La sacqueboute: Works by Castello, Ortiz, Falconieri, Morales, Schein, Scheidt, Schütz & Merula
Giovanni Martino Cesare: Musicali melodie per voci et instrumenti
The History of Classical Music: The Best of the Baroque Period
Bach, JS: Violin Concerto No. 2 in E Major, BWV 1042: I. Allegro
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Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": I. Allegro
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Bach, JS: Concerto for 2 Violins in D Minor, BWV 1043: II. Largo ma non tanto
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The Four Seasons, Violin Concerto No. 1 in E Major, RV. 269, Op. 8 No. 1 'La primavera/ Spring': III. Allegro
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Bach, JS: Brandenburg Concerto No. 1 in F Major, BWV 1046: III. Allegro
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Bach, JS: Partita for Solo Violin No. 2 in D Minor, BWV 1004: V. Chaconne
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The Four Seasons, Violin Concerto No. 2 in G Minor, RV. 315, Op. 8 No. 2 'L'estate/ Summer': III. Presto
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The Four Seasons, Violin Concerto No. 3 in F Major, RV. 293, Op. 8 No. 3 'L'autunno/ Autumn': I. Allegro
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Bach, JS: Brandenburg Concerto No. 3 in G Major, BWV 1048: I. —
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The Four Seasons, Violin Concerto No. 3 in F Major, RV. 293, Op. 8 No. 3 'L'autunno/ Autumn': III. Allegro
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The Four Seasons, Violin Concerto No. 4 in F Minor, RV. 297, Op. 8 No. 4 'L'inverno/ Winter': I. Allegro non molto
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Gounod: Ave Maria, CG 89a (After Bach's Prelude, BWV 846) [Arr. for Trumpet and Organ]
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Magnificat in G Minor, RV. 611: Magnificat
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Purcell: Dido and Aeneas, Z. 626, Act 3: Song. "When I Am Laid in Earth" (Dido)
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The Planets, Op. 32: IV. Jupiter, the Bringer of Jollity (Allegro giocoso)
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Toccata and Fugue in D Minor, BWV 565: I. Toccata
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