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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89654da85ac677d65760ce1a523e9ce2de9ea3eaf8818112dfd973802a2b3c54. 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/8880939a-5d44-4f29-8c56-98d3132418f1.json and https://artists.proofprofile.net/proofs/artist/8880939a-5d44-4f29-8c56-98d3132418f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
10 Chorale Preludes, BV B 27 (Excerpts): No. 2, Wachet auf, ruft uns die Stimme [After J.S. Bach's BWV 645]
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ae42b725f9f69db4cb44045a05c8d4e38159be02ff8328b0974a192c0739f5. 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/JPP592100002.
Rhapsody on a Theme of Paganini (Arr. F. Kreisler for violin and piano)
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Carnival of the Animals, R. 125: XIII. The Swan (Arr. P. Vidal for Cello & Orchestra)
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Consolations, S. 172 "6 Pensées poétiques": No. 3, Lento placido
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Pavane, Op. 50 (Arr. H. Busser for Piano Trio)
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Suite bergamasque, L. 75: III. Clair de lune (Featured in "Man on Fire")
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Cello Suite No. 1 in G Major, BWV 1007: I. Prelude
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6 Klavierstücke, Op. 118: No. 2, Intermezzo in A Major. Andante teneramente
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III. Nicht schnell (Re-Orchestrated by G. Mahler)
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Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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3 Visions: No. 2, Summerland (Version for Violin & Orchestra)
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Sicilienne in E-Flat Major (Arr. T. Miteva for Cello & Chamber Orchestra)
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Suite Veneziana in A Minor, Op. 18: II. Barcarola
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For Children, Vol. 1, Sz. 42 (Excerpts): No. 26, Dance with Me. Andante [Transcr. F. Ránki] [1945 Radio Version]
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Prelude in D-Flat Major, VL 253 (Arr. J. Daunytė for Harp)
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Partita No. 7 in C Major (Arr. G. Buscemi for Guitar): II. Andante
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Harp Quintet in C Minor, AV 24: II. Adagio
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Piano Trio in F Major, Hob. XV:39 "Sonata IV": II. Andante
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Violin Sonata in G Minor, H. 542.5 (Attrib. J.S. Bach's BWV 1020) [Arr. T. Hoppstock for Flute & Guitar]: II. Adagio
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Keyboard Sonata in E-Flat Major, Op. 1 No. 1: II. Tempo di minuetto
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Orchestral Suite No. 4, Op. 61, TH 34 "Mozartiana": III. Preghiera
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Bagatelle No. 25 in A Minor, WoO 59 "Für Elise"
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Chiquilín de Bachín (Arr. V. Coves for Guitar)
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Herz und Mund und Tat und Leben, BWV 147, Pt. 2: No. 10, Jesus bleibet meine Freude (Arr. M. Hess for Piano)
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5 Lieder, Op. 49: No. 4, Wiegenlied (Arr. K.H. Schütz for Flute & Piano)
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Silhouettes d'enfants, Op. 43: No. 4, Barcarolle
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Suite antique (Version for Guitar) [Excerpts]: I. Prélude
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Samson et Dalila, Op. 47, R. 288: Printemps qui commence (Version for Violin & Piano)
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Symphony in A Major, Op. 16 No. 2: II. Adagio
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La fiancée du roi de Garbe, S. 49 (Excerpts): Act III Mélodrame
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Flute Sonata in E-Flat Major, BWV 1031: II. Siciliano (Arr. D. Sosin for flute and harp)
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Scenes from Childhood, Op. 15: VII. Träumerei
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Symphony in G Major, Op. 11 No. 1: II. Andante
Joseph Boulogne Chevalier de Saint-Georges
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5 Lieder, Op. 105 (Excerpts Arr. K.H. Schütz for Flute & Piano): No. 1, Wie Melodien zieht es mir
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6 Bagatelles, Op. 126: No. 5 in G Major: Quasi allegretto
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Was mir behagt, ist nur die muntre Jagd, BWV 208 "Jagdkantate": No. 9, Schafe können sicher weiden (Arr. E. Patri for Piano)
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3 Songs, Op. 7, No. 1. Après un rêve: 3 Songs, Op. 7: No. 1, Après un rêve (Arr. For cello and piano)
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Spiegel im Spiegel (Version for Violin and Piano)
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Schwanengesang, S. 560: Schubert - Schwanengesang, S. 560/R. 245: No. 7, Standchen (Leise flehen meine Lieder) [After F. Schubert]
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La vida breve, G. 35, La vida breve, Act II: Danza
Orquesta Sinfónica del Principado de Asturias
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Fantasía para un gentilhombre: IV. Allegro con brio
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Valses poéticos: Melodico (Arr. J. McFadden)
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Libro de Música de Vihuela de Mano "El Maestro": Pavana No. 1
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El amor brujo, Scene I (1915 Version): No. 4, Danza del fin del día
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Suite española No. 1, Op. 47 (Arr. N. Kraft for Guitar): V. Asturias "Leyenda"
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Danzas fantasticas, Op. 22: Danzas fantasticas (Fantastic Dances), Op. 22: III. Orgia
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Palomo: Cantos del alma & Sinfonia a Granada
Moreno Torroba: Guitar Concertos, Vol. 2
Homenaje a la seguidilla: I. Andante - Allegretto
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Homenaje a la seguidilla: III. Allegretto - Andante - Sostenuto
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Concierto de Castilla: I. Adagio - Allegretto moderato
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Ghiribizzi, MS 43: No. 41 in C Major: Allegro
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Valses poeticos (arr. Peter Breiner): No. 3. Tempo de Vals lento
Polish National Radio Symphony Orchestra
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Lute Partita in C Minor, BWV 997: I. Prelude (arr. T. Hoppstock for guitar)
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Prelude, Fugue and Allegro in E-Flat Major, BWV 998: Allegro (arr. T. Hoppstock for guitar)
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Guitar Sonata, Op. 21, No. 3: III. Rondeau: Allegretto con poco moto
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Valses poeticos (arr. Peter Breiner): No. 6. Quasi ad libitum
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Chamber Concerto in D Major, RV 93: II. Largo (arr. G. Garcia for guitar and orchestra)
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Escenas Poeticas, Book 1 (arr. P. Breiner for guitar and orchestra): No. 1. Berceuse
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2 Arabesques: No. 1 in E Major (arr. for guitar and orchestra)
CSSR State Philharmonic Orchestra, Kosice
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6 Etudes (Escuela de guitarra): Leccion No. 15
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Trio Sonata in A Major, RV 82: III. Allegro
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Escenas Poeticas, Book 1 (arr. P. Breiner for guitar and orchestra): No. 2. Eva y Walter
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Trio Sonata in A Major, RV 82: I. Allegro non molto
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3 Piezas Espanolas (3 Spanish Pieces): No. 2. Fandango
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Julia Florida: Julia florida (Julia blooming)
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Escenas Poeticas, Book 1 (arr. P. Breiner for guitar and orchestra): No. 3. Danza de la rosa
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6 Etudes (Escuela de guitarra): Leccion No. 29
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Children's Corner: No. 1. Doctor Gradus ad Parnassum (arr. G. Garcia for guitar and orchestra)
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Guitar Sonata, Op. 21, No. 2: III. Allegretto
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Bardenklange, Op. 13: Variations mignonnes
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Valses poeticos (arr. Peter Breiner): No. 2. Poco piu moderato
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Bardenklange, Op. 13: Unruhe (Restlessness)
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Bardenklange, Op. 13: Elfenreigen (Dance of the Elves)
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25 Etudes, Op. 38: No. 6 in A Major: Andantino
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Valses poeticos (arr. Peter Breiner): No. 4. Allegro humoristico
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25 Etudes, Op. 38: No. 23 in A Major: Moderato
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Children's Corner: No. 6. Golliwog's Cake Walk (arr. G. Garcia for guitar and orchestra)
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25 Etudes, Op. 38: No. 19 in A Major: Allegretto
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Guitar Sonata: III. Allegro non troppo e piacevole
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36 Caprices, Op. 20: Capriccio No. 2. Allegro
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Guitar Sonata, Op. 21, No. 1: III. Rondeau: Allegretto
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