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 0x06ea335ff30b68dfa4da991c97f8f29c925bf2e073b27a73e68dd836598cb78b. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f1a8e4d8-50a7-4a0d-aad5-e54edaad89ff.json and https://artists.proofprofile.net/proofs/artist/f1a8e4d8-50a7-4a0d-aad5-e54edaad89ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ten Etudes - Etude #1 in C Major, Moderato
Ten Etudes - Etude #2 in A minor, Andante con moto
Ten Etudes - Etude #3 in A major, Allegretto con moto
Ten Etudes - Etude #4 in E major, Adagio cantabile
Ten Etudes - Etude #5 in A major, Allegretto
Ten Etudes - Etude #6 in D minor, Andante
Ten Etudes - Etude #7 in D major, Allegretto
Ten Etudes - Etude #8 in G major, Allegretto con moto
Ten Etudes - Etude #9 in E major, Larghetto
Ten Etudes - Etude #10 in A major, Allegretto moderato
Morceau de Concert, Op. 12 "Les oiseaux"
10 Etudes: No. 2 in A Minor. Andante con moto
10 Etudes: No. 3 in A Major. Allegretto con moto
10 Etudes: No. 4 in E Major. Adagio cantabile
10 Etudes: No. 8 in G Major. Allegretto con moto
10 Etudes: No. 10 in A Major. Allegretto moderato
Serenade for Concertina & Piano in A Major: I. Andante con moto
Serenade for Concertina & Piano in A Major: II. Allegretto scherzoso
10 Études: No. 2 in A Minor. Andante con moto
10 Études: No. 3 in A Major. Allegretto con moto
10 Études: No. 4 in E Major. Adagio cantabile
10 Études: No. 8 in G Major. Allegretto con moto
10 Études: No. 10 in A Major. Allegretto moderato
Leisure Moments (Excerpts): II. Andante - Larghetto
Leisure Moments (Excerpts): III. Andantino
Leisure Moments (Excerpts): IV. Allegretto
Leisure Moments (Excerpts): V. Andante cantabile - Allegretto
Leisure Moments (Excerpts): VII. Allegretto - Larghetto
Leisure Moments (Excerpts): VIII. Allegretto giocoso
Regondi: 10 Etudes / Introduction and Caprice, Op. 23
Introduction and Caprice, Op. 23: I. Adagio. Allegretto scherzando
10 Etudes: II. Etude No. 2: Andante con moto
10 Etudes: III. Etude No. 3: Allegro con moto
10 Etudes: IV. Etude No. 4: Adagio cantabile
10 Etudes: VIII. Etude No. 8: Allegretto con moto ben marcato la melodia
10 Etudes: X. Etude No. 10: Allegro moderato
Fete villageoise Op. 20: Fete Villageoise (Rondo Caprice), Op. 20
F'ete Villageoise - Rondo Caprice in D Major, Op. 20
Introduction et Caprice in E Major, Op. 23
Fantaisie souvenir D'amitie in A Major, Op. 46
Remembrance, Solo for the Baritone Concertina
A Set of Three Waltzes for the Concertina Solo: I. Waltz 1
A Set of Three Waltzes for the Concertina Solo: II. Waltz 2
A Set of Three Waltzes for the Concertina Solo: III. Waltz 3
Hexámeron du concertiste, Six études de concert pour le concertina: I. Première étude de concert
Hexámeron du concertiste, Six études de concert pour le concertina: II. Deuxième étude de concert
Hexámeron du concertiste, Six études de concert pour le concertina: III. Troisième étude de concert
Hexámeron du concertiste, Six études de concert pour le concertina: IV. Quatrième étude de concert
Hexámeron du concertiste, Six études de concert pour le concertina: V. Cinquième étude de concert
Hexámeron du concertiste, Six études de concert pour le concertina: VI. Sixième étude de concert
Souvenir d'amitié pour la Concertina-Baritone: I. Andante moderato
Souvenir d'amitié pour la Concertina-Baritone: II. Adagio
Souvenir d'amitié pour la Concertina-Baritone: III. Allegretto
Rêverie - Nocturne, Op. 19 (Larghetto – Più mosso)
Fête villageoise, Op. 20 (Rondo caprice. Allegretto giusto)
Premier air varié, Op. 21: I. Introduction (Larghetto) - II. Tema [Andante] - III. Var. 1 - IV. Var. 2 - V. Var. 3 - VI. Var. 4 [Risoluto]
Deuxième air varié, Op. 22: I. Introduction (Andante) - II. Tema [Andante] - III. Var. 1 - IV. Var. 2 - V. Var. 3 [Leggiero] - VI. Var. 4 [Larghetto] - VII. Var. 5 [Brillante]
Introduction et caprice, Op. 23 (Adagio – Allegretto scherzando)
Air varié de l'opéra de Bellini I Capuleti e i Montecchi: I. Andante con moto - II. Tema - III. Var. 1 - IV. Var. 2 - V. Var. 3 (Andante) - VI. Var. 4 [Allegretto vivace – Presto]
Solo on Don Giovanni: I. Larghetto con moto - II. Tema "Là ci darem la mano" - III. Var. 1 - IV. Var. 2 - V. Andante - VI. Finale
Etudes: Etude No. 1 in C Major (Moderato)
Etudes: Etude No. 2 in A Minor (Andante con moto)
Etudes: Etude No. 3 in A Major (Allegretto con moto)
Etudes: Etude No. 4 in E Major (Adagio cantabile)
Etudes: Etude No. 5 in A Major (Allegretto)
Etudes: Etude No. 6 in D Minor (Andante)
Etudes: Etude No. 7 in D Major (Allegretto)
Etudes: Etude No. 8 in G Major (Allegretto con moto)
Etudes: Etude No. 9 in E Major (Larghetto)
Etudes: Etude No. 10 in A Major (Allegretto moderato)
Giulio Regondi, Rêverie, Op. 19: Nocturne
Giulio Regondi: Complete Music for Solo Guitar
Solo on Don Giovanni - partly from Thalberg's piece
Air Varié de l'opera de Bellini "I Capuleti e i Montecchi": Andante con moto, Theme “L’amo, tanto, e m’è sì cara”, Var. 1, Var. 2, Var. 3, Var. 4, Presto
Concertina Etude in B-Flat Major (Arr. for Guitar by David Starobin)
Concertina Etude in D Major (Arr. for Guitar by David Starobin)
Concertina Etude in G Major (Arr. for Guitar by David Starobin)
Concertina Etude in C Minor (Arr. for Guitar by David Starobin)
Giulio Regondi: A 200th Birthday Bouquet
Concertina Etude in B-Flat Major (Transcr. D. Starobin)
Concertina Etude in D Major (Transcr. D. Starobin)
Concertina Etude in G Major (Transcr. D. Starobin)
Concertina Etude in A Minor (Transcr. D. Starobin)
Guitar Etude No. 10 in A Major (Transcr. D. Starobin)
Guitar Etude No. 2 in A Minor (Transcr. D. Starobin)
Music To My Ears, A Collection of Music for Children of All Ages - Fauré, Chopin, Saint-Saëns, Schumann, Borodin, Bach, etc
Anthology of Classical Guitar Music, Vol. 2
Rêverie - Nocturne, Op. 19: Larghetto - più mosso
Fête villageoise - Rondo caprice, Op. 20: Allegretto giusto
Air varié, Op. 21: Introduction (Larghetto) - Tema [Andante] - Var.1 - Var.2 - Var.3 - Var.4 [Risoluto]
Air varié, Op. 22: Introduction (Andante) - Tema [Andante] - Var.1 - Var.2 - Var.3 [Leggiero] - Var.4 [Larghetto] - Var.5 [Brillante]
Introduction et caprice, Op. 23: Adagio - Allegretto scherzando
Capricci - Musique italienne pour guitare