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 0xd66bb1b9e8aabedc521547d82789e61f9d0adfef9be346e1a91697198b103238. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0a05685-bb42-45c8-a047-37d07e1cab55.json and https://artists.proofprofile.net/proofs/artist/f0a05685-bb42-45c8-a047-37d07e1cab55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Schumann, C.: Piano Trio, Op. 17 / Schumann, R.: Piano Trio No. 3 / Rihm, W.: Fremde Szenen
Piano Trio in G Minor, Op. 17: I. Allegro moderato
Piano Trio in G Minor, Op. 17: II. Scherzo: Tempo di menuetto
Piano Trio in G Minor, Op. 17: III. Andante
Piano Trio in G Minor, Op. 17: IV. Allegretto
Piano Trio No. 3 in G Minor, Op. 110: I. Bewegt, doch nicht zu rasch
Piano Trio No. 3 in G Minor, Op. 110: II. Ziemlich langsam
Piano Trio No. 3 in G Minor, Op. 110: III. Rasch
Piano Trio No. 3 in G Minor, Op. 110: IV. Kraftig, mit Humor
Piano Trio in G Minor, Op. 17: II. Scherzo. Tempo di menuetto
Piano Trio No. 2 in E Minor, Op. 92: I. Allegro non troppo
Piano Trio No. 2 in E Minor, Op. 92: II. Allegretto
Piano Trio No. 2 in E Minor, Op. 92: III. Andante con moto
Piano Trio No. 2 in E Minor, Op. 92: IV. Grazioso, poco allegro
Piano Trio No. 2 in E Minor, Op. 92: V. Allegro
Piano Trio in D Minor, Op. 120: I. Allegro ma non troppo
Piano Trio in D Minor, Op. 120: II. Andantino
Piano Trio in D Minor, Op. 120: III. Allegro vivo
Piano Trio No. 3 in C Minor, Op. 101: I. Allegro energico
Piano Trio No. 3 in C Minor, Op. 101: II. Presto non assai
Piano Trio No. 3 in C Minor, Op. 101: III. Andante grazioso
Piano Trio No. 3 in C Minor, Op. 101: IV. Allegro molto
Tristia, Vallée d'Obermann, S723: Tristia, Vallee d'Obermann, S723
Verklarte Nacht, Op. 4 (arr. E. Steuermann for piano trio) [Transfigured Night]
Verklarte Nacht (Transfigured Night), Op. 4 (arr. E. Steuermann for piano trio)
Episodi e canto perpetuo: II. Misterioso
Episodi e canto perpetuo: IV. Burlesca I: Allegro assai
Episodi e canto perpetuo: V. Monologhi: Espressivo
Episodi e canto perpetuo: VI. Burlesca II
Episodi e canto perpetuo: VII. Canto perpetuo: Dolcissimo ma molto espressivo
Episodi e canto perpetuo: VIII. Apogeo e Coda
Piano Trio No. 2 in E Minor, Op. 67: I. Andante - Moderato
Piano Trio No. 2 in E Minor, Op. 67: II. Allegro con brio
Piano Trio No. 2 in E Minor, Op. 67: III. Largo
Piano Trio No. 2 in E Minor, Op. 67: IV. Allegretto
Piano Concerto No. 26 in D Major, K. 537, "Coronation": I. Allegro
Piano Concerto No. 26 in D Major, K. 537, "Coronation": II. Larghetto
Piano Concerto No. 26 in D Major, K. 537, "Coronation": III. Allegretto
Don Giovanni, K. 527: Serenade (Arr. W. Backhaus)
6 Lieder, Op. 17, TrV 149: No. 2, Standchen (Arr. W. Bachhaus)
2 Lunaires, Op. 33: No. 2, La danza di Olaf
Piano Concerto No. 1 in E Minor, Op. 11: II. Romance (Arr. W. Backhaus)
3 Old Viennese Dances: Kreisler - Liebesleid
3 Concert Études, S. 144: 3 Etudes de concert, S. 144/R. 5: No. 2 in F Minor, "La Leggierezza"
Mendelssohn - A Midsummer Night's Dream: Wedding March and Dance of the Fairies, S. 410/R. 219
28 Variations on a Theme by Paganini, Op. 35: Book 1: Variations 1, 3, 7, 12-13 - Book 2: Variations 3-8, 10-11, 14
Morceaux de fantaisie, Op. 3: No. 2, Prelude in C-Sharp Minor
3 Nocturnes, B. 56: No. 2, Andante quieto
D'un matin de printemps (Arr. for Piano Trio)
Soir, Matin, Op. 76: Soir for Violin, Cello and Piano Op. 76, No. 1
Soir, Matin, Op. 76: Matin for Violin, Cello and Piano, Op. 76, No. 2
Three Nocturnes for Piano Trio: I. Andante
Three Nocturnes for Piano Trio: II. Andante quieto
Three Nocturnes for Piano Trio: III. Tempestoso
Mozart-Adagio for Violin, Cello and Piano
Elegy in D-Flat Major for Piano Trio, Op. 23
Adagio in E-Flat Major for Piano Trio, D 897
Soir for Violin, Cello and Piano Op. 76 No. 1
Matin for Violin, Cello and Piano, Op. 76 No. 2
Elegy in D-Flat Major for Piano Trio Op. 23
Piano Trio, Op. 50, TH 117: I. Pezzo elegiaco. Moderato assai - Allegro giusto
Piano Trio, Op. 50, TH 117: II. Tema con variazioni
Quincy Jones: Main Title from the Color Purple
Teach Me! (The Students of Nadia Boulanger)
Trio pour violon, violoncelle et piano (1986): I. -
Trio pour violon, violoncelle et piano (1986): II. Scherzando
Trio pour violon, violoncelle et piano (1986): III. Andante
Trio pour violon, violoncelle et piano (1986): IV. Allegrissimo
West Side Story: Maria. Slowly and freely - Moderato con Anima
Las Cuatro Estaciones Porteñas: Primavera Porteña
Las Cuatro Estaciones Porteñas: Verano Porteño
Las Cuatro Estaciones Porteñas: Otoño Porteño
Las Cuatro Estaciones Porteñas: Invierno Porteño
Lyric Pieces, Op. 43: To Spring - Arr. For Piano Trio
Piano Trio No. 4, "Dumky": I. Lento maestoso — Allegro quasi doppio movement
Piano Trio No. 4, "Dumky": II. Poco Adagio — Vivace non troppo
Piano Trio No. 4, "Dumky": III. Andante — Vivace non troppo
Piano Trio No. 4, "Dumky": IV. Andante moderato — Allegretto scherzando
Piano Trio No. 4, "Dumky": V. Allegro — Meno mosso
Piano Trio No. 4, "Dumky": Vi. Lento maestoso — Vivace
7 Canciones Populares Españolas: No. 1, el Paño Moruno - Arr. for Piano Trio
7 Canciones Populares Españolas: No. 3, Asturiana - Arr. for Piano Trio
7 Canciones Populares Españolas: No. 4, Jota - Arr. for Piano Trio
7 Canciones Populares Españolas: No. 5, Nana - Arr. for Piano Trio
7 Canciones Populares Españolas: No. 7, Polo - Arr. for Piano Trio
Ungarische Tänze, WoO 1: No. 4, Poco sostenuto - Arr. for Piano Trio
Ungarische Tänze, WoO 1: No. 5, Allegro - Arr. for Piano Trio
Ungarische Tänze, WoO 1: No. 17, Andantino - Arr. for Piano Trio
Lyric Pieces, Op. 54: Notturno - Arr. for Piano Trio
Trio sur des mélodies populaires irlandaises: I. Allegro moderato
Trio sur des mélodies populaires irlandaises: II. Adagio
Trio sur des mélodies populaires irlandaises: III. Gigue. Allegro
Trio No. 2 in G Minor: II. Andante con Espressione
Trio No. 2 in G Minor: I. Allegro agitato
Trio No. 2 in G Minor: III. Finale. Rondo. Allegro risoluto
Trio in D Minor, Op. 11: I. Allegro molto vivace
Trio in D Minor, Op. 11: II. Andante espressivo
Trio in D Minor, Op. 11: III. Lied: Allegretto
Trio in D Minor, Op. 11: IV. Allegretto moderato
Clairières dans le ciel: No. 3, Parfois, je suis triste
Clairières dans le ciel: No. 9, Les lilas qui avaient fleuri
Clairières dans le ciel: No. 11, Par ce que j'ai souffert
Beethoven: In questa tomba oscura, Adelaide, An die ferne Geliebte, Scottish & Irisch Songs
Scottish Songs, Op. 108: No. 3. O Sweet Were the Hours
Scottish Songs, Op. 108: No. 5. The Sweetest Lad Was Jamie
Scottish Songs, Op. 108: No. 16. Could This Ill World Have Been Contriv'd
Scottish Songs, Op. 108: No. 20. Faithfu' Johnie
Scottish Songs, Op. 108: No. 13. Come Fill, Fill, My Good Fellow
Irish Songs, WoO 152: No. 9, The Soldier's Dream
Irish Songs, WoO 152: No. 10, The Deserter
Irish Songs, WoO 152: No. 5, Ton the Massacre of Gelncoe
Irish Songs, WoO 152: No. 15, The brainspinnings Swans
Irish Songs, WoO 156: No. 12, Polly Stewart
Irish Songs, WoO 154: No. 4, The Pulse of an Irishman Ever Beats Quicker
Irish Songs, WOO 153: No. 4, Since Greybeards Inform Us That Youth Will Decay
Irish Songs, WoO 152: No. 21, Morning a Cruel Turmoiler Is