1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6beb91ad2a8e661303c74f5791191d11e5d2198ec56cd3b5c0c6f2ec6bfda6. 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/4bcbbd3a-b7d6-49d0-98c7-321eaa9c6d75.json and https://artists.proofprofile.net/proofs/artist/4bcbbd3a-b7d6-49d0-98c7-321eaa9c6d75.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kammermusik No. 1, Op. 24 No. 1: I. Sehr schnell und wild
Kammermusik No. 1, Op. 24 No. 1: II. Mässig schnelle Halbe
Kammermusik No. 1, Op. 24 No. 1: III. Quartett. Sehr langsam und mit Ausdruck
Kammermusik No. 1, Op. 24 No. 1: IV. Finale 1921. Lebhaft
Kammermusik No. 2, Op. 36 No. 1: I. Sehr lebhafte Achtel
Kammermusik No. 2, Op. 36 No. 1: II. Sehr langsame Achtel
Kammermusik No. 2, Op. 36 No. 1: III. Kleines Potpourri. Sehr lebhafte Viertel
Kammermusik No. 2, Op. 36 No. 1: IV. Finale. Schnelle Viertel
Kammermusik No. 3, Op. 36 No. 2: I. Majestätisch und stark. Mäßig schnelle Achtel
Kammermusik No. 3, Op. 36 No. 2: II. Lebhaft und lustig
Kammermusik No. 3, Op. 36 No. 2: III. Sehr ruhig und gemessen schreitende Viertel
Kammermusik No. 3, Op. 36 No. 2: IV. Mässig bewegte Halbe. Munter, aber immer gemächlich
Kleine Kammermusik No. 2, Op. 24 No. 2: I. Lustig. Mässig schnelle Viertel
Kleine Kammermusik No. 2, Op. 24 No. 2: II. Walzer. Durchweg sehr leise
Kleine Kammermusik No. 2, Op. 24 No. 2: III. Ruhig und einfach. Achtel
Kleine Kammermusik No. 2, Op. 24 No. 2: IV. Schnelle Viertel
Kleine Kammermusik No. 2, Op. 24 No. 2: V. Sehr lebhaft
Viola Concerto: I. Pizzicato, Molto rubato - Più mosso
Symphonieorchester des Bayerischen Rundfunks
Viola Concerto: II. Sehr langsam - Calmo
24 Duets: No. 16. Petit ballet mécanique (Pas de deux)
24 Duets: No. 6. Scherzando (un poco sostenuto)
Farnace, RV 711: Air "Gelido in ogni vena"
Juditha triumphans, RV 644: Air "Armatae face et anguibus"
Bassoon Concerto in G Minor, RV 495: I. Presto
Bassoon Concerto in G Minor, RV 495: II. Largo
Bassoon Concerto in G Minor, RV 495: III. Allegro
Juditha triumphans, RV 644: Air "Veni, veni me sequere fida"
Cello Concerto in G Minor, RV 416: I. Allegro
Cello Concerto in G Minor, RV 416: II. Adagio
Cello Concerto in G Minor, RV 416: III. Allegro
Giustino, RV 717: Air 'Vedrò con mio diletto'
Lute Concerto in D Major, RV 93: I. Allegro
Lute Concerto in D Major, RV 93: II. Largo
Lute Concerto in D Major, RV 93: III. Allegro
L'olimpiade, RV 725: Air "Mentre dormi, Amor fomenti"
Griselda, RV 718: Air "Agitata da due venti"
Saint-Saëns: Cello Concerto No. 1 - Franck, Fauré & Poulenc (Bonus Track Version)
Violin Sonata in A Major, FWV 8 (Arr. for Cello and Piano by Jules Delsart): I. Allegretto ben moderato
Violin Sonata in A Major, FWV 8 (Arr. for Cello and Piano by Jules Delsart): II. Allegro
Violin Sonata in A Major, FWV 8 (Arr. for Cello and Piano by Jules Delsart): III. Recitativo-Fantasia. Ben moderato - Molto lento
Violin Sonata in A Major, FWV 8 (Arr. for Cello and Piano by Jules Delsart): IV. Allegretto poco mosso
Cello Concerto No. 1 in A Minor, Op. 33: I. Allegro non troppo - Live
Cello Concerto No. 1 in A Minor, Op. 33: II. Allegretto con moto - Live
Cello Concerto No. 1 in A Minor, Op. 33: III. Molto allegro - Live
Cello Sonata, FP 143: I. Allegro - Tempo di Marcia
3 Songs, Op. 7: No. 1, Après un rêve (Arr. for Cello and Piano by Pablo Casals)
Le Carnaval des Animaux, R. 125: XIII. Le Cygne (Version for Cello and Piano) - Bonus Track
Cello Suite No. 1 in G Major, BWV 1007: I. Prélude
Cello Suite No. 4 in E-Flat Major, BWV 1010: I. Prelude
Cello Suite No. 1 in G Major, BWV 1007: II. Allemande
Cello Suite No. 4 in E-Flat Major, BWV 1010: II. Allemande
Cello Suite No. 1 in G Major, BWV 1007: III. Courante
Cello Suite No. 4 in E-Flat Major, BWV 1010: III. Courante
Cello Suite No. 1 in G Major, BWV 1007: IV. Sarabande
Cello Suite No. 4 in E-Flat Major, BWV 1010: IV. Sarabande
Cello Suite No. 1 in G Major, BWV 1007: V. Minuets I & II
Cello Suite No. 4 in E-Flat Major, BWV 1010: V. Bourrées I & II
Cello Suite No. 1 in G Major, BWV 1007: VI. Gigue
Cello Suite No. 4 in E-Flat Major, BWV 1010: VI. Gigue
Cello Suite No. 3 in C Major, BWV 1009: I. Prélude
Cello Suite No. 5 in C Minor, BWV 1011: I. Prelude
Cello Suite No. 2 in D Minor, BWV 1008: II. Allemande
Cello Suite No. 5 in C Minor, BWV 1011: II. Allemande
Cello Suite No. 2 in D Minor, BWV 1008: III. Courante
Cello Suite No. 5 in C Minor, BWV 1011: III. Courante
Cello Suite No. 2 in D Minor, BWV 1008: IV. Sarabande
Cello Suite No. 5 in C Minor, BWV 1011: IV. Sarabande
Cello Suite No. 2 in D Minor, BWV 1008: V. Minuets I & II
Cello Suite No. 5 in C Minor, BWV 1011: V. Gavottes I & II
Cello Suite No. 2 in D Minor, BWV 1008: VI. Gigue
Cello Suite No. 5 in C Minor, BWV 1011: VI. Gigue
Cello Suite No. 3 in C Major, BWV 1009: I. Prelude
Cello Suite No. 6 in D Major, BWV 1012: I. Prélude
Cello Suite No. 3 in C Major, BWV 1009: II. Allemande
Cello Suite No. 6 in D Major, BWV 1012: II. Allemande
Cello Suite No. 3 in C Major, BWV 1009: III. Courante
Cello Suite No. 6 in D Major, BWV 1012: III. Courante
Cello Suite No. 3 in C Major, BWV 1009: IV. Sarabande
Cello Suite No. 6 in D Major, BWV 1012: IV. Sarabande
Cello Suite No. 3 in C Major, BWV 1009: V. Bourrées I & II
Cello Suite No. 6 in D Major, BWV 1012: V. Gavottes I & II
Cello Suite No. 3 in C Major, BWV 1009: VI. Gigue
Cello Suite No. 6 in D Major, BWV 1012: VI. Gigue
Sinfonia Concertante in E Minor, Op. 125: I. Andante
Sinfonia Concertante in E Minor, Op. 125: II. Allegro giusto
Sinfonia Concertante in E Minor, Op. 125: III. Andante con moto - Allegretto (poco meno mosso)
Sonata for cello and piano in C Major, Op. 119: I. Andante grave - Moderato animato
Sonata for cello and piano in C Major, Op. 119: II. Moderato - Andante dolce
Sonata for cello and piano in C Major, Op. 119: III. Allegro, ma non troppo - Meno mosso
Rachmaninov & Myaskovsky: Sonatas for cello and piano
Cello Sonata No. 1 in D Major, Op. 12: I. Adagio - Andante
Cello Sonata No. 1 in D Major, Op. 12: II. Allegro passionato
2 Pieces, Op. 2: I. Prélude in F Major. Commodo
2 Pieces, Op. 2: II. Danse orientale in A Minor. Andante cantabile
5 Morceaux de fantaisie, Op. 3: II. Prélude in C-Sharp Minor. Lento
Cello Sonata in G Minor, Op. 19: I. Lento - Allegro moderato
Cello Sonata in G Minor, Op. 19: II. Allegro scherzando
Cello Sonata in G Minor, Op. 19: III. Andante
Cello Sonata in G Minor, Op. 19: IV. Allegro mosso
Bruno Philippe & Tanguy de Williencourt - harmonia nova #5
Violin Sonata No. 9 in A Major, Op. 47 "Kreutzer" (Arr. Carl Czerny): I. Adagio sostenuto - Presto
Violin Sonata No. 9 in A Major, Op. 47 "Kreutzer" (Arr. Carl Czerny): II. Andante con variazioni
Violin Sonata No. 9 in A Major, Op. 47 "Kreutzer" (Arr. Carl Czerny): III. Finale - Presto
Arpeggione Sonata in A Minor, D. 821: I. Allegro moderato
Arpeggione Sonata in A Minor, D. 821: II. Adagio
Arpeggione Sonata in A Minor, D. 821: III. Allegretto
Brahms & Schumann: Works for Cello and Piano
Sonata for Cello and Piano No. 1 in E Minor, Op. 38: I. Allegro non troppo
Sonata for Cello and Piano No. 1 in E Minor, Op. 38: II. Allegro quasi menuetto
Sonata for Cello and Piano No. 1 in E Minor, Op. 38: III. Allegro
Fantasiestücke for Cello and Piano, Op. 73: I. Zart und mit Ausdruck
Fantasiestücke for Cello and Piano, Op. 73: II. Lebhaft, leicht
Fantasiestücke for Cello and Piano, Op. 73: III. Rasch und mit Feuer
Sonata for Cello and Piano No. 2 in F Major, Op. 99: I. Allegro vivace
Sonata for Cello and Piano No. 2 in F Major, Op. 99: II. Adagio affetuoso in F-Sharp Major
Sonata for Cello and Piano No. 2 in F Major, Op. 99: III. Allegro passionato in F Minor
Sonata for Cello and Piano No. 2 in F Major, Op. 99: IV. Allegro molto
Bach, Offenbach, Popper (Le maître et l'élève: Raphaël Pidoux)
Suite pour violoncelle No. 5 in C Minor, BWV 1011: I. Prélude
Suite pour violoncelle No. 5 in C Minor, BWV 1011: II. Allemande
Suite pour violoncelle No. 5 in C Minor, BWV 1011: III. Courante
Suite pour violoncelle No. 5 in C Minor, BWV 1011: IV. Sarabande
Suite pour violoncelle No. 5 in C Minor, BWV 1011: V. Gavottes 1 & 2
Suite pour violoncelle No. 5 in C Minor, BWV 1011: VII. Gigue
Duos for 2 Cellos in G Minor, Op. 53: No. 1, Allegro non troppo
Duos for 2 Cellos, Op. 53: No. 2 in G Minor, Adagio religioso
Duos for 2 Cellos, Op. 53: No. 3 in G Minor, Rondo allegretto
3 Pieces for Cello and Piano, Op. 64: No. 1, Once in Fairer Days
Concert-Etudes, Op. 55: No. 2, Jagdstück
Dances espagnoles pour violoncelle et piano, Op. 54: No. 2, Sérénade
Pièces de virtuosité pour violoncelle et accordéon, Op. 50: No. 2, Danse des Gnomes
Concert-Etudes, Op. 55: No. 1, Spinnlied
Fantaisie sur des petites chansons russes, Op. 43
Franck: Violin Sonata in A Major, FWV 8: I. Allegretto ben moderato (Arr. for Cello and Piano by Jules Delsart)
Saint-Saëns: Le Carnaval des animaux, R. 125: XIII. Le Cygne
Le Carnaval des Animaux, R. 125: XIII. Le Cygne (Version for Cello and Piano)
Saint-Saëns: Cello Concerto No. 1 in A Minor, Op. 33: I. Allegro non troppo
J.S. Bach: Cello Suite No. 5 in C Minor, BWV 1011: I. Prelude
J.S. Bach: Cello Suite No. 1 in G Major, BWV 1007: IV. Sarabande
Pastorale pour hautbois, basson et orchestre
La Machine de Trurl: I. Le grand constructeur
La Machine de Trurl: II. Fabrication de nacre
La Machine de Trurl: III. Essai de natrium
La Machine de Trurl: IV. La nébuleuse blanche
La Machine de Trurl: V. Le constructeur de Clapaucius
La Machine de Trurl: IX. Les étoiles minuscules
La Machine de Trurl: X. Le ciel vide et noir
Ich will den Kreuzstab gerne tragen, BWV 56: V. Komm, o Tod, du Schlafes Bruder
Sonata for two violins and basso continuo, DürG 13: II. Alla breve
Il Trionfo del Tempo e del Disinganno, HWV 46a: Lascia la spina, cogli la rosa
Violin Concerto in E Minor, Op. 64: III. Allegro molto vivace
Requiem, K. 626: Confutatis - Lachrimosa
Violin Sonata No. 6 in E Major, Op. 27: I. Allegro giusto vivo non troppo
Officium breve in memoriam Andreæ Szervánszky, Op. 28: XI. Sostenuto
Tannhäuser, WWV 70, Act III, Scene 2: Wie Todesahnung - O du mein holder Abendstern (Wolfram)
La Descente d'Orphée aux Enfers, H. 488, Premier Acte, Scène 2: Ah ! Bergers, c'en est fait
Selva morale e spirituale, SV 252–288: Crucifixus - Et resurrexit - Ed iterum
Ein feste Burg ist unser Gott, BWV 80: IV. Aria "Komm in mein Herzenshaus" (soprano)
Ein deutsches Requiem, Op. 45: I. Sie gehen hin und weinen (choir) [excerpt]
Swedish Radio Symphony Orchestra and Chorus
El Sombrero de tres picos: Danza final (Jota) [excerpt]
Goyescas, Cuadro segundo: [Final del Fandango] - ¡Qué cosas dice a veces un pie! (Majos, Majas)
Aria "No, che non sei capace!", K. 419 (Clorinda) - L'oca del Cairo: Sestetto e coro "Corpo di Satanasso!" (excerpt)
Symphonie fantastique: Songe d'une nuit de sabbat (excerpt)
Piano Concerto in G Major, M. 83: III. Presto
Leonore, Op. 72a, Scène III, Act 3: Nr. 16. Quartett „Er sterbe!" - Dial. 17 „Folge mir Rocco!" (Pizarro, Florestan, Leonore, Rocco) (1805 version)
Oboe Concerto in B-Flat Major, H. 466, Wq. 164: III. Allegro moderato
Sonata for viola da gamba and harpsichord in G Major, BWV 1027: III. Andante (viola version)
Piano Sonata No. 9 in C Major, Op. 103: II. Andante strepitoso
Sinfonia Concertante in E Minor, op. 125: III. Andante con moto (excerpt)
Missa Beata Dei genitrix Maria: Gloria (excerpt)
L'incoronazione di Poppea, Atto III, finale: "Pur ti miro" (Poppea) - "Pur ti godo" (Nerone)
Aldo Ciccolini: Archives du Festival de Nohant (Grand Interprète et Jeunes Talents)
Scènes d'enfants, Op. 15: I, Des Pays Mystérieux
Andante spianato et Grande polonaise brillante in E-Flat Major, Op. 22
Études pour le piano, Op. 11 "Pour les arpèges composés"
Scènes d'enfants, Op. 15: II, Curieuse Histoire
Sonate pour violoncelle et piano, Op. 19: III. Andante
Scènes d'enfants, Op. 15: III, Colin-Maillard
Sonate pour piano No. 2 in G Minor, Op. 22: I. So rasch wie möglich
Scènes d'enfants, Op. 15: IV, L'Enfant Prie
Sonate pour piano No. 2 in G Minor, Op. 22: II. Andantino
Scènes d'enfants, Op. 15: V, Bonheur Parfait
Sonate pour piano No. 2 in G Minor, Op. 22: III. Scherzo: Sehr rasch und marquiert
Scènes d'enfants, Op. 15: VI, Un Important Evènement
Sonate pour piano No. 2 in G Minor, Op. 22: IV. Presto: Rondo
Scènes d'enfants, Op. 15: IX, Sur Un Cheval De Bois
Scènes d'enfants, Op. 15: X, Peut-Être Trop Sérieux
Scènes d'enfants, Op. 15: XI, Faire Peur
Scènes d'enfants, Op. 15: XII, L'Enfant S'endort
Scènes d'enfants, Op. 15: XIII, Le Poète Parle
Sonate pour piano in E Minor, Op. 7: I. Allegro moderato.
Sonate pour piano in E Minor, Op. 7: II. Andante molto
Scènes d'enfants, Op. 15: VIII, Au coin de feu
Sonate pour piano in E Minor, Op. 7: III. Alla minuetto ma poco più lento
Sonate pour piano in E Minor, Op. 7: IV. Finale - Molto allegro
Sonate No. 21 in B-Flat Major, D. 960: I. Molto moderato
Sonate No. 21 in B-Flat Major, D. 960: II. Andante sostenuto
Scènes d'enfants, Op. 15: XII, L'Enfant s'endort
Sonate No. 21 in B-Flat Major, D. 960: III. Scherzo - Allegro vivace con delicatezza
Scènes d'enfants, Op. 15: XIII, Le Poéte parle ugit, quidips aperferum ut libus
Sonate No. 21 in B-Flat Major, D. 960: IV. Allegro ma non troppo
Six Mélodies nocturnes originales: VI. Les Regrets
Gulnare ou L'esclave persanne: Rien, tendre amour, ne résite à tes armes
L'Opéra comique: Ah ! pour l'amant le plus discret
Fleurs des Landes, Op. 13, H. 124: Le Jeune Pâtre breton, H. 65C
Six Mélodies nocturnes originales: Le Désir. Variation
L'Opéra comique: Que d'établissements nouveaux
La Damnation de Faust, Op. 24, H. 111: Danse des Sylphes, LW. A205 (transcribed for piano by Franz Liszt)
Neuf mélodies irlandaises, Op. 2, H. 38: Élégie en prose H. 47
Nina ou La Folle par amour: Romance de Nina: "Quand le bien-aimé reviendra" (transcribed for voice, guitar and harp by Thibaut Roussel and Caroline Lieby)
Harold en Italie, Op. 16, H. 68: Marche des Pèlerins, LW. A29 (transcribed for piano by Franz Liszt)
Queen Elisabeth Competition - Cello 2017 (Live)
Cello Concerto No. 1 in E-Flat Major, Op. 107: I. Allegretto - Live
Cello Sonata No. 2 in F Major, Op. 99: I. Allegro vivace - Live
Cello Concerto No. 1 in C Major, Hob. VIIb:1: I. Moderato - Live
Cello Suite No. 4 in E-Flat Major, BWV 1010: Cello Suite No. 4 in E-Flat Major, BWV 1010: Prelude - Live
Cello Concerto No. 1 in E-Flat Major, Op. 107: II. Moderato - Live
Cello Sonata No. 2 in F Major, Op. 99: II. Adagio affettuoso - Live
Cello Concerto No. 1 in C Major, Hob. VIIb:1: II. Adagio - Live
Cello Concerto No. 2 in D Major, Hob. VIIb:2: I. Allegro moderato - Live
Cello Concerto No. 1 in E-Flat Major, Op. 107: III. Cadenza - Live
Cello Sonata No. 2 in F Major, Op. 99: III. Allegro passionato - Live
Cello Concerto No. 1 in C Major, Hob. VIIb:1: III. Allegro molto - Live
Cello Concerto No. 2 in D Major, Hob. VIIb:2: II. Adagio - Live
Cello Concerto No. 1 in E-Flat Major, Op. 107: IV. Allegro con moto - Live
Cello Sonata No. 2 in F Major, Op. 99: IV. Allegro - Live
Cello Sonata in C Major, G. 17: I. Allegro - Live
Cello Concerto No. 2 in D Major, Hob. VIIb:2: III. Allegro - Live
Cello Concerto No. 2 in B Minor, Op. 104, B. 191: I. Allegro - Live
Cello Sonata in C Major, Op. 119: I. Andante grave - Live
Cello Sonata in C Major, G. 17: II. Largo assai - Live
Rondo in G Minor, Op. 94 (Live): Rondo in G Minor, Op. 94
Cello Concerto No. 2 in B Minor, Op. 104, B. 191: II. Adagio ma non troppo - Live
Cello Sonata in C Major, Op. 119: II. Moderato - Live
Cello Sonata in C Major, G. 17: III. Rondo Allegro - Live
Fünf Stücke im Volkston, Op. 102: Fünf Stücke im Volkston, Op. 102: Stark und markiert - Live
Cello Concerto No. 2 in B Minor, Op. 104, B. 191: III. Allegro moderato - Live
Cello Sonata in C Major, Op. 119: III. Allegro ma non troppo - Live
Fünf Stücke im Volkston, Op. 102: Fünf Stücke im Volkston, Op. 102: Mit Humor - Live
Kol Nidrei, Op. 47 (Live): Kol Nidrei, Op. 47
Cello Sonata, FP 143: I. Allegro. Tempo di marcia - Live
Fünf Stücke im Volkston, Op. 102: Fünf Stücke im Volkston, Op. 102: Langsam - Live
Cello Sonata in A Minor, D. 821 "Arpeggione": Cello Sonata in A Minor, D. 821 "Arpeggione": Allegro moderato - Live
Cello Sonata, FP 143: II. Cavatine - Live
Chacun(e) sa chaconne (Live): Chacun(e) sa chaconne
Papillon, Op. 77 (Live): Papillon, Op. 77
Cello Sonata, FP 143: III. Ballabile - Live
Sonata for solo cello in C Minor, Op. 28: Sonata for Solo Cello in C Minor, Op. 28: Grave - Live
Elfentanz, Op. 39 (Live): Elfentanz, Op. 39
Violin Sonata No. 2 in D Major, Op. 94a (Arr. K. Kennan for Clarinet & Piano): I. Moderato
Violin Sonata No. 2 in D Major, Op. 94a (Arr. K. Kennan for Clarinet & Piano): II. Scherzo
Violin Sonata No. 2 in D Major, Op. 94a (Arr. K. Kennan for Clarinet & Piano): III. Andante
Violin Sonata No. 2 in D Major, Op. 94a (Arr. K. Kennan for Clarinet & Piano): IV. Allegro con brio