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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c245a81d8e0fa9c133b8c225a7867db7d30e2669fd87c183f1e1654adfb151. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8088f1b9-ec0c-44d2-a044-e209a64cf765.json and https://artists.proofprofile.net/proofs/artist/8088f1b9-ec0c-44d2-a044-e209a64cf765.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
String Quartet No. 40 in F Major, Op. 50, No. 5, Hob.III:48, "Ein Traum" (The Dream): I. Allegro moderato
String Quartet No. 40 in F Major, Op. 50, No. 5, Hob.III:48, "Ein Traum" (The Dream): II. Poco adagio
String Quartet No. 40 in F Major, Op. 50, No. 5, Hob.III:48, "Ein Traum" (The Dream): III. Menuetto: Allegretto
String Quartet No. 40 in F Major, Op. 50, No. 5, Hob.III:48, "Ein Traum" (The Dream): IV. Finale: Vivace
5 Movements, Op. 5: V. In zarter Bewegung
String Quartet No. 59 in G Minor, Op. 74, No. 3, Hob.III:74, "The Rider": I. Allegro
String Quartet No. 59 in G Minor, Op. 74, No. 3, Hob.III:74, "The Rider": II. Largo assai
String Quartet No. 59 in G Minor, Op. 74, No. 3, Hob.III:74, "The Rider": III. Menuetto: [Allegretto]
String Quartet No. 59 in G Minor, Op. 74, No. 3, Hob.III:74, "The Rider": IV. Finale: Allegro con brio
String Quartet No. 40 in F Major, Op. 50, No. 5, Hob. III:48, "Ein Traum" (the Dream): I. Allegro moderato
String Quartet No. 40 in F Major, Op. 50, No. 5, Hob. III:48, "Ein Traum" (the Dream): II. Poco adagio
String Quartet No. 40 in F Major, Op. 50, No. 5, Hob. III:48, "Ein Traum" (the Dream): III. Menuetto. Allegretto
String Quartet No. 40 in F Major, Op. 50, No. 5, Hob. III:48, "Ein Traum" (the Dream): IV. Finale. Vivace
String Quartet No. 59 in G Minor, Op. 74, No. 3, Hob. III:74, "the Rider": I. Allegro
String Quartet No. 59 in G Minor, Op. 74, No. 3, Hob. III:74, "the Rider": II. Largo assai
String Quartet No. 59 in G Minor, Op. 74, No. 3, Hob. III:74, "the Rider": III. Menuetto. (Allegretto)
String Quartet No. 59 in G Minor, Op. 74, No. 3, Hob. III:74, "the Rider": IV. Finale. Allegro con brio
String Quartet, Op. 3: II. Massige Viertel
String Quartet No. 14 in C-sharp Minor, Op. 131: I. Adagio, ma non troppo e molto espressivo -
String Quartet No. 14 in C-sharp Minor, Op. 131: II. Allegro molto vivace -
String Quartet No. 14 in C-sharp Minor, Op. 131: III. Allegro moderato - Adagio -
String Quartet No. 14 in C-sharp Minor, Op. 131: IV. Andante, ma non troppo e molto cantabile
String Quartet No. 14 in C-sharp Minor, Op. 131: V. Presto - Molto poco adagio -
String Quartet No. 14 in C-sharp Minor, Op. 131: VI. Adagio quasi un poco andante -
String Quartet No. 14 in C-sharp Minor, Op. 131: VII. Allegro
String Quartet No. 14 in C-Sharp Minor, Op. 131: I. Adagio, ma non troppo e molto espressivo -
String Quartet No. 14 in C-Sharp Minor, Op. 131: II. Allegro molto vivace -
String Quartet No. 14 in C-Sharp Minor, Op. 131: III. Allegro moderato - Adagio -
String Quartet No. 14 in C-Sharp Minor, Op. 131: IV. Andante, ma non troppo e molto cantabile
String Quartet No. 14 in C-Sharp Minor, Op. 131: V. Presto - Molto poco adagio -
String Quartet No. 14 in C-Sharp Minor, Op. 131: VI. Adagio quasi un poco andante -
String Quartet No. 14 in C-Sharp Minor, Op. 131: VII. Allegro
String Quartet in A Minor, Op. 41 No. 1: I. Introduction. Andante espressivo - Allegro
String Quartet in A Minor, Op. 41 No. 1: II. Scherzo. Presto
String Quartet in A Minor, Op. 41 No. 1: III. Adagio
String Quartet in A Minor, Op. 41 No. 1: IV. Presto
Officium breve in memoriam Andreae Szervánszky, Op. 28: I. Largo
Officium breve in memoriam Andreae Szervánszky, Op. 28: II. Più andante
Officium breve in memoriam Andreae Szervánszky, Op. 28: III. Sostenuto, quasi giusto
Officium breve in memoriam Andreae Szervánszky, Op. 28: IV. Grave, molto sostenuto
Officium breve in memoriam Andreae Szervánszky, Op. 28: V. Fantasie über die Harmonien des Webern-Kanons. Presto
Officium breve in memoriam Andreae Szervánszky, Op. 28: VI. Canon à 4
Officium breve in memoriam Andreae Szervánszky, Op. 28: VII. Canon à 2
Officium breve in memoriam Andreae Szervánszky, Op. 28: VIII. Lento
Officium breve in memoriam Andreae Szervánszky, Op. 28: IX. Largo
Officium breve in memoriam Andreae Szervánszky, Op. 28: X. Sehr fliessend
Officium breve in memoriam Andreae Szervánszky, Op. 28: XI. Sostenuto
Officium breve in memoriam Andreae Szervánszky, Op. 28: XII. Sostenuto, quasi giusto
Officium breve in memoriam Andreae Szervánszky, Op. 28: XIII. Sostenuto, con slancio
Officium breve in memoriam Andreae Szervánszky, Op. 28: XIV. Disperato, vivo
Officium breve in memoriam Andreae Szervánszky, Op. 28: XV. Arioso interrotto. Larghetto
String Quartet in A Major, Op. 41 No. 3: I. Andante espressivo - Allegro molto moderato
String Quartet in A Major, Op. 41 No. 3: II. Assai agitato
String Quartet in A Major, Op. 41 No. 3: III. Adagio molto
String Quartet in A Major, Op. 41 No. 3: IV. Finale. Allegro molto vivace
String Quartet No. 1 in A Minor, Op. 41, No. 1: I. Introduction: Andante espressivo - Allegro
String Quartet No. 1 in A Minor, Op. 41, No. 1: II. Scherzo: Presto - Intermezzo
String Quartet No. 1 in A Minor, Op. 41, No. 1: III. Adagio
String Quartet No. 1 in A Minor, Op. 41, No. 1: IV. Presto
Officium breve in memoriam Andreae Szervanszky, Op. 28: I. Largo
Officium breve in memoriam Andreae Szervanszky, Op. 28: II. Piu andante
Officium breve in memoriam Andreae Szervanszky, Op. 28: III. Sostenuto, quasi giusto
Officium breve in memoriam Andreae Szervanszky, Op. 28: IV. Grave, molto sostenuto
Officium breve in memoriam Andreae Szervanszky, Op. 28: V. (Fantasie uber die Harmonien des Webern-Kanons): Presto
Officium breve in memoriam Andreae Szervanszky, Op. 28: VI. (Canon a 4): Molto agitato
Officium breve in memoriam Andreae Szervanszky, Op. 28: VII. Canon a 2 (frei, nach op. 31/VI von Webern): Sehr fliessend
Officium breve in memoriam Andreae Szervanszky, Op. 28: VIII. Lento
Officium breve in memoriam Andreae Szervanszky, Op. 28: IX. Largo
Officium breve in memoriam Andreae Szervanszky, Op. 28: X. Sehr fliessend (arr. of Webern: Cantata No. 2, Op. 31: VI. Canon a 4)
Officium breve in memoriam Andreae Szervanszky, Op. 28: XI. Sostenuto
Officium breve in memoriam Andreae Szervanszky, Op. 28: XII. Sostenuto, quasi giusto
Officium breve in memoriam Andreae Szervanszky, Op. 28: XIII. Sostenuto, con slancio
Officium breve in memoriam Andreae Szervanszky, Op. 28: XIV. Disperato, vivo
Officium breve in memoriam Andreae Szervanszky, Op. 28: XV. Arioso interrotto (di Endre Szervanszky): Larghetto
String Quartet No. 3 in A Major, Op. 41, No. 3: I. Andante espressivo - Allegro molto moderato
String Quartet No. 3 in A Major, Op. 41, No. 3: II. Assai agitato - Un poco adagio - Tempo risoluto
String Quartet No. 3 in A Major, Op. 41, No. 3: III. Adagio molto
String Quartet No. 3 in A Major, Op. 41, No. 3: IV. Finale: Allegro molto vivace
String Quartet in G Minor, Op. 10, L. 85: I. Animé et très décidé
String Quartet in G Minor, Op. 10, L. 85: II. Assez vif et bien rythmé
String Quartet in G Minor, Op. 10, L. 85: III. Andantino, doucement expressif
String Quartet in G Minor, Op. 10, L. 85: IV. Très modéré. Très mouvementé et avec passion
String Quartet No. 1 "In diesem Augenblick": I. Verschwinden
String Quartet No. 1 "In diesem Augenblick": II. Erwachsen
String Quartet No. 1 "In diesem Augenblick": III. Vergessenheit
String Quartet No. 1 "In diesem Augenblick": IV. In diesem Augenblick
String Quartet in F Major, M. 35: I. Allegro moderato
String Quartet in F Major, M. 35: II. Assez vif, très rythmé
String Quartet in F Major, M. 35: III. Très lent
String Quartet in F Major, M. 35: IV. Vif et agité
String Quartet in G Minor, Op. 10, L. 85: I. Anime et tres decide
String Quartet in G Minor, Op. 10, L. 85: II. Assez vif et bien rythme
String Quartet in G Minor, Op. 10, L. 85: IV. Tres modere: Tres mouvemente et avec passion
String Quartet in F Major, M. 35: II. Assez vif, tres rythme
String Quartet in F Major, M. 35: III. Tres Lent
String Quartet in F Major, M. 35: IV. Vif et agite
String Quartet No. 17 in B-Flat Major, K. 458 "Hunt": I. Allegro vivace assai
String Quartet No. 2 in F-Sharp Minor, Op. 10: I. Massig
String Quartet No. 2 in F-Sharp Minor, Op. 10: II. Sehr rasch
String Quartet No. 17 in B-Flat Major, K. 458 "Hunt": II. Menuetto (Moderato)
String Quartet No. 17 in B-Flat Major, K. 458 "Hunt": III. Adagio
String Quartet No. 2 in F-Sharp Minor, Op. 10: III. Litanei
String Quartet No. 17 in B-Flat Major, K. 458 "Hunt": IV. Allegro assai
String Quartet No. 2 in F-Sharp Minor, Op. 10: IV. Entruckung
String Quartet No. 19 in C Major, Op. 10 No. 6, K. 465 "Dissonance": I. Adagio - Allegro
String Quartet No. 19 in C Major, Op. 10 No. 6, K. 465 "Dissonance": II. Andante cantabile
String Quartet No. 19 in C Major, Op. 10 No. 6, K. 465 "Dissonance": III. Menuetto: Allegro
String Quartet No. 19 in C Major, Op. 10 No. 6, K. 465 "Dissonance": IV. Allegro molto
String Quartet No. 2 in F-Sharp Minor, Op. 10: I. Mäßig
String Quartet No. 17 in B-Flat Major, K. 458 "Hunt": II. Minuetto. Moderato - Trio
String Quartet No. 2 in F-Sharp Minor, Op. 10: III. Litanei. Langsam
String Quartet No. 2 in F-Sharp Minor, Op. 10: IV. Entrückung. Sehr langsam
String Quartet No. 19 in C Major, Op. 10 No. 6, K. 465 "Dissonance": III. Menuetto. Allegro - Trio
String Quartet No. 19 in C Major, Op. 10 No. 6, K. 465 "Dissonance": IV. Allegro
String Quartet in F Major, Op. 135: II. Vivace
String Quartet in D Major, Op. 18 No. 3: IV. Presto
String Quartet in D Major, Op. 18 No. 3: I. Allegro
String Quartet in D Major, Op. 18 No. 3: II. Andante con Moto
String Quartet in D Major, Op. 18 No. 3: III. Allegro
String Quartet No. 6: III. Mesto. Burletta
String Quartet in F Major, Op. 135: I. Allegretto
String Quartet in F Major, Op. 135: III. Assai lento, cantate e Tranquillo
String Quartet in F Major, Op. 135: IV. Grave, ma non troppo tratto - Allegro
Piano Quintet in F Minor, Op. 34: I. Allegro non troppo
Piano Quintet in F Minor, Op. 34: II. Andante, un poco adagio
Piano Quintet in F Minor, Op. 34: III. Scherzo. Allegro
Piano Quintet in F Minor, Op. 34: IV. Finale: Poco sostenuto. Allegro non troppo