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 0x9e5a8594e6b79158ac2f2890387d0b9d4413dc2e9dd581236915533acd5c61f4. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/daea9c7d-de9d-410a-a746-b7307f13db99.json and https://artists.proofprofile.net/proofs/artist/daea9c7d-de9d-410a-a746-b7307f13db99.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Duos for 2 Cellos, Op. 19 No. 1: I. Allegro Moderato
Duos for 2 Cellos, Op. 19 No. 1: II. Allegretto
Duos for 2 Cellos, Op. 19 No. 2: I. Allegro Maestoso
Duos for 2 Cellos, Op. 19 No. 2: II. Andantino
Duos for 2 Cellos, Op. 19 No. 2: III. Minuetto
Duos for 2 Cellos, Op. 19 No. 3: I. Largo attacca tema con variazioni I, II & III
Duos for 2 Cellos, Op. 19 No. 3: II. Allegretto
Duos for 2 Cellos, Op. 21 No. 1: I. Allegro
Duos for 2 Cellos, Op. 21 No. 1: II. Adagio Religioso
Duos for 2 Cellos, Op. 21 No. 1: III. Allegretto
Duos for 2 Cellos, Op. 21 No. 2: I. Allegro Maestoso
Duos for 2 Cellos, Op. 21 No. 2: II. Cantabile
Duos for 2 Cellos, Op. 21 No. 2: III. Rondò Allegretto
Duos for 2 Cellos, Op. 21 No. 3: I. Adagio e variazioni I, II, III andante & IV Allegro
Duos for 2 Cellos, Op. 21 No. 3: II. Scherzo
Duos for 2 Cellos, Op. 20 No. 1: I. Allegro
Duos for 2 Cellos, Op. 20 No. 1: II. Andantino
Duos for 2 Cellos, Op. 20 No. 1: III. Rondò, Allegretto
Duos for 2 Cellos, Op. 20 No. 2: I. Rondò, allegro non Troppo
Duos for 2 Cellos, Op. 20 No. 2: II. Lento
Duos for 2 Cellos, Op. 20 No. 2: III. Rondò, Allegretto
Duos for 2 Cellos, Op. 20 No. 3: I. Allegro Maestoso
Duos for 2 Cellos, Op. 20 No. 3: II. Minuetto
Duos for 2 Cellos, Op. 52 No. 1: I. Allegro
Duos for 2 Cellos, Op. 52 No. 1: II. Adagio
Duos for 2 Cellos, Op. 52 No. 1: III. Rondò, Allegretto
Duos for 2 Cellos, Op. 52 No. 2: I. Allegro Maestoso
Duos for 2 Cellos, Op. 52 No. 2: II. Andante
Duos for 2 Cellos, Op. 52 No. 2: III. Scherzo
Duos for 2 Cellos, Op. 52 No. 3: I. Tempo di marcia con variazioni I & II
Duos for 2 Cellos, Op. 52 No. 3: II. Adagio
Duos for 2 Cellos, Op. 52 No. 3: III. Movimento di Valse
Duos for 2 Cellos, Op. 34 No. 1: I. Allegro Moderato
Duos for 2 Cellos, Op. 34 No. 1: II. Andante
Duos for 2 Cellos, Op. 34 No. 1: III. Allegretto non Troppo
Duos for 2 Cellos, Op. 34 No. 2: I. Allegro
Duos for 2 Cellos, Op. 34 No. 3: I. Allegro Moderato
Duos for 2 Cellos, Op. 34 No. 3: II. Andante Attacca
Duos for 2 Cellos, Op. 34 No. 3: III. Scherzo, allegro Vivace
Duos for 2 Cellos, Op. 49 No. 1: I. Allegro Moderato
Duos for 2 Cellos, Op. 49 No. 1: II. Andante
Duos for 2 Cellos, Op. 49 No. 1: III. Rondò, Allegretto
Duos for 2 Cellos, Op. 49 No. 2: I. Allegro
Duos for 2 Cellos, Op. 49 No. 2: II. Rondò, Allegretto
Duos for 2 Cellos, Op. 49 No. 3: I. Allegro Moderato
Duos for 2 Cellos, Op. 49 No. 3: II. Adagio
Duos for 2 Cellos, Op. 49 No. 3: III. Allegretto
Duos for 2 Cellos, Op. 49 No. 4: I. Allegro
Duos for 2 Cellos, Op. 49 No. 4: II. Rondò, Allegretto
Duos for 2 Cellos, Op. 49 No. 5: I. Allegro non Troppo
Sammartini: Trio I, III, IV, V & Sonata III
Trio No. 5 in G Minor: II. Tempo di minuetto
Cello Sonata in G Major: I. Allegro non troppo
Cello Sonata in G Major: II. Grave con espressione
Trio No. 3 in A Major: II. Tempo di minuetto
Duet for Cello & Double Bass in D Major: I. Allegro
Duet for Cello & Double Bass in D Major: II. Andante molto
Duet for Cello & Double Bass in D Major: III. Allegro
Péchés de vieillesse, Vol. 9 (Excerpts): No. 10, Une larme
Les soirées musicales (Excerpts): No. 7, La gita in gondola [Arr. E. Albini for Cello & Piano]
Les soirées musicales (Excerpts): No. 8, La danza [Tarantella] [Arr. for Cello & Piano]
Mosè in Egitto: Ballet (Excerpts Arr. E. Albini for Cello & Piano)
Péchés de vieillesse, Vol. 9 (Excerpts): No. 4, Un mot à Paganini [Arr. for Cello & Piano]
Variations on a Theme of Rossini, H. 290
Il barbiere di Siviglia: Largo al factotum (Arr. M. Tedesco for Cello & Piano)
Angel's Serenade (Légende Valaque) [Version for Cello & Piano]
Piatti: Music for Cello and Piano, 2 Songs
Fantasia sopra alcuni motivi della Gemma di Vergy in D Major
Capriccio over a Theme from "Niobe" in D Major, Op. 22
3 Ritornelli, M.S.113: I. Allegro in A Major
3 Ritornelli, M.S.113: II. Allegro in C Minor
3 Ritornelli, M.S.113: III. Allegro assai in C Major
Sonata concertata in A Major, Op. 61, M.S.2: I. Allegro spiritoso
Sonata concertata in A Major, Op. 61, M.S.2: II. Adagio assai espressivo
Sonata concertata in A Major, Op. 61, M.S.2: III. Rondeau, allegretto con brio. Scherzando
Violin Sonata No. 10 in E Major, Gavotte: I. Grave (Arr. A. Piatti)
Violin Sonata No. 10 in E Major, Gavotte: II. Allegro (Arr. A. Piatti)
Violin Sonata No. 10 in E Major, Gavotte: III. Allegro, tempo di gavotta (Arr. A. Piatti)
Violin Sonata No. 10 in E Major, Gavotte: IV. Largo (Arr. A. Piatti)
Violin Sonata No. 10 in E Major, Gavotte: V. Allegro (Arr. A. Piatti)
Cello Sonata in A Major, G. 4: I. Adagio
Cello Sonata in A Major, G. 4: II. Allegro
Cello Sonata in A Major, G. 4: III. Affettuoso
Cello Sonata in G Major: I. Allegro non troppo (Arr. K. Fuessl and L. Rose for Cello and Piano)
Cello Sonata in G Major: II. Grave con espressione (Arr. K. Fuessl and L. Rose for Cello and Piano)
Cello Sonata in G Major: III. Allegro (Arr. K. Fuessl and L. Rose for Cello and Piano)
Cello Sonata in G Minor, Op. 1, No. 4: I. Adagio (Arr. A. Moffat for Cello and Piano)
Cello Sonata in G Minor, Op. 1, No. 4: II. Allegro (Arr. A. Moffat for Cello and Piano)
Cello Sonata in G Minor, Op. 1, No. 4: III. Largo (Arr. A. Moffat for Cello and Piano)
Cello Sonata in G Minor, Op. 1, No. 4: IV. Allegro (Arr. A. Moffat for Cello and Piano)
Flute Sonata in D Major, Op. 2, No. 2: I. Allegro (Arr. A. Piatti for Cello and Piano)
Flute Sonata in D Major, Op. 2, No. 2: II. Adagio (Arr. A. Piatti for Cello and Piano)
Flute Sonata in D Major, Op. 2, No. 2: III. Minuetto (Arr. A. Piatti for Cello and Piano)
Sonata for Violin and Guitar in E Minor, Op. 3, No. 6, MS 27 (arr. for cello and piano)
Keyboard Suite No. 7 in G Minor, HWV 432: VI. Passacaille (arr. for cello)
La Fileuse in A Minor, Op. 15 (arr. for cello and piano)
14 Songs, Op. 34: No. 14. Vocalise (arr. for cello and piano)
Hora staccato (arr. for cello and piano)
Carnival of the Animals: XII. Le Cygne (The Swan) (version for cello and piano)
Tale of Tsar Saltan, Op. 57: Flight of the Bumblebee (arr. for cello and piano)
Adagio and Rondo, J. 115 (arr. for cello and piano)
Introduction and Variations on Dal tuo stellato soglio from Rossini's Mose in Egitto, Op. 24, MS 23, "Mose-Fantasia" (arr. for cello and piano)
Piatti: Capricci, Op. 22 & Op. 25 per Violoncello solo - Dallapiccola: Ciaccona, Intermezzo & Adagio
Capriccio sopra un tema della Niobe di Pacini (Caprice on a Theme from Pacini's Niobe), Op. 22
12 Caprices, Op. 25: No. 1. Allegro quasi presto
12 Caprices, Op. 25: No. 2. Andante religioso
12 Caprices, Op. 25: No. 5. Allegro comodo
12 Caprices, Op. 25: No. 6. Adagio largamente
12 Caprices, Op. 25: No. 8. Moderato ma energico
12 Caprices, Op. 25: No. 10. Allegro deciso
12 Caprices, Op. 25: No. 11. Adagio - Allegro
12 Caprices, Op. 25: No. 12. Allegretto capriccioso
Ciaccona, intermezzo e adagio: Intermezzo
Bossi: Opera completa per violoncello e pianoforte - Opera completa per violino e pianoforte, Vol. 1
Feuillets d'album, Op. 111: I. Benediction Nuptiale
Feuillets d'album, Op. 111: II. Menuet - Musette
Feuillets d'album, Op. 111: III. Reverie
Santa Caterina da Siena: I. Introduzione
Santa Caterina da Siena: II. I Primi Fervori
Santa Caterina da Siena: III. Le Stimmate
Santa Caterina da Siena: IV. Le Tribolazioni
Santa Caterina da Siena: V. L' Estasi Mistica
Santa Caterina da Siena: VII. L' Assunzione
Duos for Two Cellos, Op. 49 No. 1 in C Major: I. Allegro moderato
Duos for Two Cellos, Op. 49 No. 1 in C Major: II. Andante
Duos for Two Cellos, Op. 49 No. 1 in C Major: III. Rondo. Allegretto
Duos for Two Cellos, Op. 49 No. 2 in G Major: I. Allegro
Duos for Two Cellos, Op. 49 No. 2 in G Major: II. Rondo. Allegretto
Duos for Two Cellos, Op. 49 No. 3 in A Minor: I. Allegro moderato
Duos for Two Cellos, Op. 49 No. 3 in A Minor: II. Adagio
Duos for Two Cellos, Op. 49 No. 3 in A Minor: III. Allegretto
Duos for Two Cellos, Op. 49 No. 4 in G Major: I. Allegro
Duos for Two Cellos, Op. 49 No. 4 in G Major: II. Rondo. Allegretto
Duos for Two Cellos, Op. 49 No. 5 in F Major: I. Allegro non troppo
Duos for Two Cellos, Op. 49 No. 5 in F Major: II. Adagio –
Duos for Two Cellos, Op. 49 No. 5 in F Major: III. Tempo di menuetto
Duos for Two Cellos, Op. 49 No. 6 in D Major: I. Allegro maestoso
Duos for Two Cellos, Op. 49 No. 6 in D Major: II. Andantino
Duos for Two Cellos, Op. 49 No. 6 in D Major: III. Rondo. Allegro
Duos for Two Cellos, Op. 51 No. 1 in A Major: I. Allegro
Duos for Two Cellos, Op. 51 No. 1 in A Major: II. Andante
Duos for Two Cellos, Op. 51 No. 1 in A Major: III. Allegretto
Duos for Two Cellos, Op. 51 No. 2 in B Minor: I. Allegro non troppo
Duos for Two Cellos, Op. 51 No. 2 in B Minor: II. Cantabile
Duos for Two Cellos, Op. 51 No. 2 in B Minor: III. Allegretto
Duos for Two Cellos, Op. 51 No. 3 in C Major: I. Allegro
Duos for Two Cellos, Op. 51 No. 3 in C Major: II. Andante
Duos for Two Cellos, Op. 51 No. 3 in C Major: III. Allegro non troppo
Duos for Two Cellos, Op. 54 No. 1 in G Minor: I. Allegro non troppo
Duos for Two Cellos, Op. 54 No. 1 in G Minor: II. Adagio
Duos for Two Cellos, Op. 54 No. 1 in G Minor: III. Rondo. Allegretto
Duos for Two Cellos, Op. 54 No. 2 in E Major: I. Allegro
Duos for Two Cellos, Op. 54 No. 2 in E Major: II. Andante
Duos for Two Cellos, Op. 54 No. 2 in E Major: III. Polonaise
Duos for Two Cellos, Op. 54 No. 3 in E Major: I. Adagio –
Duos for Two Cellos, Op. 54 No. 3 in E Major: II. Allegro maestoso
Duos for Two Cellos, Op. 54 No. 3 in E Major: III. Allegro vivo
Schumann, C.: Piano Concerto in A Minor / Piano Trio in G Minor
Piano Concerto in A Minor, Op. 7: Allegro maestoso
Piano Concerto in A Minor, Op. 7: Romanze. Andante non troppo con grazia
Piano Concerto in A Minor, Op. 7: Finale. Allegro non troppo - Allegro molto
Piano Trio in G Minor, Op. 17: Allegro moderato
Piano Trio in G Minor, Op. 17: Scherzo. Tempo di Menuetto
Piano Trio in G Minor, Op. 17: III. Andante
Piano Trio in G Minor, Op. 17: Allegretto
Cello Concerto in E Minor, Op. 85: I. Adagio - Moderato
Cello Suite No. 1 in G Major, BWV 1007: I. Prelude
Cello Suite No. 1, Op. 72: III. Serenata: Allegretto: pizzicato
Carnival of the Animals: XIII. Le Cygne (The Swan) (arr. P. Vidal for cello and orchestra)
Cello Concerto No. 1 in C Major, Hob.VIIb:1: II. Adagio
Preludes, Book 1: No. 8. La fille aux cheveux de lin (The Girl with the Flaxen Hair) (arr. L.R. Feuillard for cello and piano)
Cello Concerto in B Minor, Op. 104, B. 191: II. Adagio ma non troppo
Cello Sonata in G Minor, Op. 65: III. Largo
Im Walde, Op. 50: I. Eintritt (Entrance) (arr. P. Breiner for orchestra)
14 Songs, Op. 34: No. 14. Vocalise in E Minor
4 Pieces, Op. 78: No. 2. Romance (version for cello and piano)
Cello Sonata No. 1 in E Minor, Op. 38: I. Allegro non troppo
Suite italienne: V. Minuetto e Finale (version for cello and piano)
Martucci, G.: Orchestral Music (Complete), Vol. 1 - Symphony No. 1 / Nocturne / Andante / Canzonetta / Giga
Symphony No. 1 in D Minor, Op. 75: I. Allegro
Symphony No. 1 in D Minor, Op. 75: II. Andante
Symphony No. 1 in D Minor, Op. 75: III. Allegretto
Symphony No. 1 in D Minor, Op. 75: IV. Mosso - Allegro risoluto
Giga, Op. 61, No. 3 (Arr. For orchestra)
Canzonetta, Op. 65, No. 2 (Arr. For orchestra)
Andante, Op. 69, No. 2 (Arr. For cello and orchestra)
Nocturne, Op. 70, No. 1 (Arr. For orchestra)
The 19th Century Salon Music (World Premiere Recordings)
Nocturno from "Sommernachtstraum" - For Violin, Cello, Piano and Harmonium
Symphony No. 8 in B Minor, D. 759: I. Allegro moderato - For Violin, Cello, Piano and Harmonium
Rondo in A Major, Op. 107 - For Violin, Cello, Piano and Harmonium
Don Giovanni, K. 527: "Ouverture" - For Violin, Cello, Piano and Harmonium
Don Giovanni, K. 527: Duetto Là ci darem la mano - For Violin, Cello, Piano and Harmonium
Don Giovanni, K. 527: Sérénade - For Violin, Cello, Piano and Harmonium
Intermezzo Sinfonico from "Cavalleria Rusticana" - For Cello, Piano and Harmonium
Prière de Moïse, Op. 120 - For Violin, Cello, Piano and Harmonium
2 Préludes de la "Traviata", Op. 118: No. 1 - For Violin, Cello, Piano and Harmonium
2 Préludes de la "Traviata", Op. 118: No. 2 - For Violin, Cello, Piano and Harmonium
Polka sur "La Traviata" - For Harmonino and Piano
Quatuor de "Rigoletto", Op. 106 No. 1 - For Violin, Piano and Harmonium
Quintetto et Hymne de "Un Ballo in Maschera" - For Violin, Cello, Piano and Harmonium
Nutcracker Suite, Op. 71a: II. Danse de la Fée-Dragée, Op. 71a - For Orgue à Célesta
Te Deum Laudamus in E Major, Op. 28 - For Violin, Viola, Cello, Double-Bass and Harmonium
Dolce soffrir (Version for Cello & Piano)
Romanze, Op. 89 (Arr. for Double Bass & Piano)
4 Pieces in the Form of a Suite, Op. 99: No. 1, Romanza
4 Pieces in the Form of a Suite, Op. 99: No. 2, Auf dem Rasen
4 Pieces in the Form of a Suite, Op. 99: No. 3, Wiegenlied
4 Pieces in the Form of a Suite, Op. 99: No. 4, Bacchische Scene
Intermezzi goldoniani, Op. 127: V. Serenatina (Arr. for Violin & Piano)
Feuillets d'album, Op. 111: I. Benediction nuptiale (Version for Viola & Piano)
Siciliana e giga, Op. 73 (Version for Flute & Piano)
Feuillets d'album, Op. 111: II. Menuet - Musette (Version for Bassoon & Piano)
Paganini: Trios for Strings and Guitar (Complete)
Serenata in C Major, Op. 69, MS 17: I. Allegretto spiritoso
Serenata in C Major, Op. 69, MS 17: II. Minuetto: (Andantino - Amorosamente)
Serenata in C Major, Op. 69, MS 17: III. Adagio non tanto: (Unione con anima)
Serenata in C Major, Op. 69, MS 17: IV. Rondo con maestria e grazia (Canzonetta genovese)
Serenata in C Major, Op. 69, MS 17: V. Andantino alla polacca
Terzetto concertante in D Major, Op. 68, MS 114: I. Allegro
Terzetto concertante in D Major, Op. 68, MS 114: II. Minuetto
Terzetto concertante in D Major, Op. 68, MS 114: III. Adagio cantabile
Terzetto concertante in D Major, Op. 68, MS 114: IV. Waltz a rondo: (Allegretto con energia)
Terzetto in D Major, Op. 66, MS 69: I. Allegro con brio
Terzetto in D Major, Op. 66, MS 69: II. Minuetto: (Allegro vivace)
Terzetto in D Major, Op. 66, MS 69: III. Andante - Larghetto (Cavate)
Terzetto in D Major, Op. 66, MS 69: IV. Rondo: (Allegretto)
Terzetto in A Minor, Op. 67, MS 116: I. Andante sostenuto
Terzetto in A Minor, Op. 67, MS 116: II. Tempo di minuetto
Terzetto in A Minor, Op. 67, MS 116: III. Andantino - Allegro
Serenata in F Major: I. Introduzione: Largo
Serenata in F Major: II. Tempo di minuetto - Amoroso
Serenata in F Major: III. Andantino scherzando
Casella: Notte di maggio - Cello Concerto - Scarlattiana
Cello Concerto, Op. 58: I. Allegro molto vivace
Cello Concerto, Op. 58: II. Largo - Grave
Cello Concerto, Op. 58: III. Presto vivacissimo
Scarlattiana, Op. 44: I. Sinfonia: Lento grave, allegro molto vivace
Scarlattiana, Op. 44: II. Minuetto: Allegretto ben moderato e grazioso
Scarlattiana, Op. 44: III. Capriccio: Allegro vivacissimo e impetuoso
Scarlattiana, Op. 44: IV. Pastorale: Andantino dolcemente mosso
Scarlattiana, Op. 44: V. Finale: Lento molto e grave