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 0xaa9e065c06e725ae9e9b3db057e4095d45f44f7f11ff5d7a4310d73abfa87a1a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90e53b4e-40b1-4240-9a8b-d76d80000b8a.json and https://artists.proofprofile.net/proofs/artist/90e53b4e-40b1-4240-9a8b-d76d80000b8a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Violin Concerto No. 2 in E Major, BWV 1042: 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f370f4f30ec9a08d7a132d6b9d20befd185ad52343e6f7c7c62922899d4de4. 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/GBF071301611.
Violin Concerto No. 2 in E Major, BWV 1042: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcb17e84f2b696d5d4f97f74fb4c71aba5aacf70e22f5b86a1290a50928d437. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBF071301612.
Violin Concerto No. 2 in E Major, BWV 1042: III. Allegro assai
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Violin Concerto No. 1 in A Minor, BWV 1041: I. [Allegro moderato]
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Violin Concerto No. 1 in A Minor, BWV 1041: II. Andante
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Violin Concerto No. 1 in A Minor, BWV 1041: III. Allegro assai
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Concerto for Violin and Oboe in C Minor, BWV 1060R: I. Allegro
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Concerto for Violin and Oboe in C Minor, BWV 1060R: II. Adagio
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Concerto for Violin and Oboe in C Minor, BWV 1060R: III. Allegro
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Violin Sonata No. 3 in E Major, BWV 1016: I. Adagio
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Violin Sonata No. 3 in E Major, BWV 1016: II. Allegro
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Violin Sonata No. 3 in E Major, BWV 1016: III. Adagio ma non tanto
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Violin Sonata No. 3 in E Major, BWV 1016: IV. Allegro
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Violin Sonata No. 4 in C Minor, BWV 1017: I. Largo
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Violin Sonata No. 4 in C Minor, BWV 1017: II. Allegro
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Violin Sonata No. 4 in C Minor, BWV 1017: III. Adagio
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Violin Sonata No. 4 in C Minor, BWV 1017: IV. Allegro
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Sacra Partitura for Bassoon, Violin and Basso Continuo: Sonata sopra la Monica
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Three Arias from 'Il barbiere di Siviglia': Largo al factotum - Arr. for Two Bassoons by Bodo Koenigsbeck and Bram van Sambeek
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Sonata for Bassoon and Piano, Op. 168: I. Allegro moderato
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l'Histoire du Tango: Café 1930, for Bassoon and Guitar
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Harlem Nocturne for Bassoon, Double Bass, Hammond Organ and Drums (arr. Marijn van Prooijen)
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Concerto for Harpsichord, Strings and Continuo No. 1 in D minor, BWV 1052: 1. Allegro
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Grande Allegro di Concerto "alla Mendelssohn" (Arr. for Double Bass and String Quintet by Wijnand van Klaveren)
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Capriccio di Bravura in A Major (Arr. for Double Bass and String Quintet by Wijnand van Klaveren)
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Passione amorosa (Arr. B. Furtok for 2 Double Basses & Chamber Ensemble): II. Andante
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Giustino, RV 717: Vedrò con mio diletto (Arr. M. Prooijen for Double Bass & Chamber Ensemble)
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Élégie par Ernst (Arr. G. Bottesini & M. Prooijen for Chamber Ensemble)
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Concerto for Cello & Bassoon in E Minor, RV 409 (Arr. M. Prooijen for Double Bass, Bassoon & Chamber Ensemble): II. Allegro
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Duetto for Clarinet & Double Bass (Arr. M. Prooijen for Double Bass, Bassoon & Chamber Ensemble): I. Allegro
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J.S. Bach: J.S. Bach: Violin Concerto No.1 in A minor, BWV 1041: 1. (Allegro moderato)
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J.S. Bach: Orchestral Suite No. 2 in B Minor, BWV 1067: 7. Badinerie (Performed on Recorder)
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J.S. Bach: J.S. Bach: Cello Suite No.1 In G Major, BWV 1007: 1. Prélude
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J.S. Bach: J.S. Bach: Herz und Mund und Tat und Leben, Cantata BWV 147: 10. Jesu, Joy Of Man's Desiring (Arr. by Guillermo Figueroa)
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J.S. Bach: J.S. Bach: St. Matthew Passion, BWV 244 / Part Two: "Wir setzen uns mit Tränen nieder"
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J.S. Bach: J.S. Bach: Aria mit 30 Veränderungen, BWV 988 "Goldberg Variations": Aria
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J.S. Bach: J.S. Bach: The Well-Tempered Clavier: Book 1, BWV 846-869: Prelude and Fugue in C Major, BWV 846
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J.S. Bach: Organ Sonata No. 4, BWV 528: II. Andante [Adagio] (Transcr. by August Stradal)
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J.S. Bach: J.S. Bach: Was mir behagt, ist nur die muntre Jagd, Cantata BWV 208: 9. Sheep May Safely Graze
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J.S. Bach: J.S. Bach: Orchestral Suite No. 3 in D Major, BWV 1068: 2. Air
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J.S. Bach: J.S. Bach: Concerto in C Minor for Violin & Oboe, BWV 1060R: 2. Adagio
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J.S. Bach: J.S. Bach: Brandenburg Concerto No.3 In G Major, BWV 1048: 1. (Allegro)
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J.S. Bach: J.S. Bach: Concerto for Harpsichord, Strings, and Continuo No.7 in G minor, BWV 1058: 2. Andante
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J.S. Bach: J.S. Bach: Brandenburg Concerto No. 4 in G Major, BWV 1049: 1. Allegro
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J.S. Bach: J.S. Bach: Concerto for 2 Violins, Strings, and Continuo in D minor, BWV 1043: 2. Largo ma non tanto
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J.S. Bach: J.S. Bach: Violin Concerto No.2 In E, BWV 1042: 1. Allegro
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Das Wohltemperierte Klavier: Book 1, BWV 846-869: Prelude in E major BWV 854
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Sonata For Viola Da Gamba And Harpsichord No. 2 In D, BWV 1028: 1. Adagio
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Arioso (Adagio in G) from Cantata BWV 156 (Arr. by Lloyd Webber)
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Brandenburg Concerto No. 4 in G Major, BWV 1049: II. Andante
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Cello Suite No. 1 in G Major, BWV 1007: I. Prélude
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Invention No. 14 in B-Flat Major, BWV 785
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Suite No. 2 in B minor, BWV 1067: 6. Menuet
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Goldberg Variations, BWV 988: Var. 5 a 1 ovvero 2 Clav.
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Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante
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French Suite No. 2 in C Minor, BWV 813: I. Allemande
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Herz und Mund und Tat und Leben, BWV 147: Jesu, Joy of Man's Desiring (Arr. Figueroa for Chamber Orchestra)
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The Well-Tempered Clavier, Book 1: Prelude & Fugue No. 1 in C Major, BWV 846
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Partita No. 1 for Solo Violin in B Minor, BWV 1002: V. Sarabande
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Orchestral Suite No. 3 in D, BWV 1068: 2. Air
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Wachet auf, ruft uns die Stimme, BWV 645 ('Sleepers, awake') - Arr. Sir Granville Bantock (1868-1946): Sleepers Awake
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Cello Suite No. 1 in G Major, BWV 1007: I. Prelude
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Suite No. 3 In D Major, BWV 1068: 2. Air
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Das Wohltemperierte Klavier: Book 1, BWV 846-869: Prelude in C Major, BWV 846
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Concerto For Cor Anglais (From BWV 54): 1. Larghetto
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Ich ruf zu dir, Herr Jesu Christ, BWV 639 (Arr. Busoni for Piano)
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Cantata No. 156, BWV 156 "Ich steh mit einem Fuß im Grabe": Sinfonia
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Brandenburg Concerto No. 5 in D Major, BWV 1050: II. Affettuoso
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Prelude and Fugue in E (WTK, Book I, No. 9), BWV 854: Prelude
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Prelude and Fugue in A flat (WTK, Book I, No. 17), BWV 862: Prelude
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Concerto for Keyboard, Strings, and Basso continuo No. 5 in F minor, BWV 1056: 2. Largo
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Weihnachts-Oratorium, BWV 248, Pt. 2: No. 10, Sinfonia pastorale
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Cantata No. 196, BWV 196 "Der Herr denket an uns": Sinfonia
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Suite in E for Lute, BWV 1006a/1000 - Arr. Guitar: 3. Gavotte (Arr. for Guitar)
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Concerto for Oboe (from BWV 105, 170 & 49): 2. Andante
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Sinfonia (3-Part Invention) No. 5 in E-Flat Major, BWV 791
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Piano Concerto No. 2 in E, Bwv 1053: 2. Siciliano
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Partita No. 4 in D Major, BWV 828: II. Allemande
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Partita No. 1 for Solo Violin in B Minor, BWV 1002: V. Sarabande – VI. Double
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Was mir behagt, ist nur die muntre Jagd, Cantata BWV 208: 9. Sheep May Safely Graze
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Orchestral Suite No. 2 in B Minor, BWV 1067: 7. Badinerie (Performed on Recorder)
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North Sea - Nature Untamed (Feature Film & TV Series Soundtrack)
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Pleuronectiformes Variation - Bonus Track
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Orchestral Suite No. 2 In B Minor, BWV 1067: 7. Badinerie
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Prelude for Lute in C Minor, BWV 999 (Transcr. for Guitar in D Minor)
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Ink-Wash on Paper: II. Looking at Paintings
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Septet in E-Flat Major, Op. 20: I. Adagio - Allegro con brio
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Septet in E-Flat Major, Op. 20: III. Tempo di minuetto
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Recomposed By Max Richter: Vivaldi, The Four Seasons: Spring 1 - 2012
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