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 0xab66349fdf5d4720937618c0bb6d84111b61af18728679ed2bdb1dfac73111d5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f880fdeb-57a1-4eac-b8e1-5fe69fc376de.json and https://artists.proofprofile.net/proofs/artist/f880fdeb-57a1-4eac-b8e1-5fe69fc376de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nocturne No. 20 in C-Sharp Minor, B.49, Op. posth. - 1980 recording
Prélude in G-Sharp Minor, Op. 32, No. 12
Fantasie in C Major, Op. 17: III. Langsam, getragen
Images, 1ère série CD 105/L.110: I. Reflets dans l'eau
Paraphrase über einen Walzer von Robert Stolz
Mazurkas, Op. 17: No. 4 in A-Flat Minor: Lento ma non troppo
Partita for Violin No. 2 in D Minor, BWV1004: V. Chaconne (Arr. for Piano)
Nocturne No. 20 in C-Sharp Minor, B.49, Op. posth. - 1948 recording
Sonata for Violin and Piano No. 5 in F major, Op. 24: Allegro
Quintet for Piano and String Quartet in E flat major, Op. 44: Allegro brillante
Quintet for Piano and String Quartet in E flat major, Op. 44: In modo d'una marcia
Sonata for Violin and Piano No. 5 in F major, Op. 24: Adagio molto espressivo
Sonata for Violin and Piano No. 5 in F major, Op. 24: Scherzo: Allegro molto
Quintet for Piano and String Quartet in E flat major, Op. 44: Scherzo: Molto vivace
Sonata for Violin and Piano No. 5 in F major, Op. 24: Rondo: Allegro ma non troppo
Quintet for Piano and String Quartet in E flat major, Op. 44: Finale: Allegro ma non troppo
Prélude No. 8 "La fille aux cheveux de lin"
Sonata for Violin and Piano No. 3 in C minor, Op. 45: Allegro molto ed appassionato
Quintet for Piano and String Quartet in G minor, Op. 34: Allegro
Sonata for Violin and Piano No. 3 in C minor, Op. 45: Allegretto espressivo alla Romanza
Quintet for Piano and String Quartet in G minor, Op. 34: Adagio
Sonata for Violin and Piano No. 3 in C minor, Op. 45: Allegro animato
Quintet for Piano and String Quartet in G minor, Op. 34: Scherzo
Rondo (Adaption for Violin & Piano of 3rd movement from Piano Sonata, Op. 53)
Quintet for Piano and String Quartet in G minor, Op. 34: Finale
Piano Sonata No. 7 in B flat major, Op. 83: Allegro inquieto. Andantino
Piano Sonata No. 7 in B flat major, Op. 83: Andante caloroso
Piano Sonata No. 7 in B flat major, Op. 83: Precipitato
The Life Of The Machines, Suite for Piano: Toccatina (3rd movement)
Piano Quintet in G Minor, Op. 34: 1. Allegro
Piano Quintet in G Minor, Op. 34: 2. Adagio
Piano Quintet in G Minor, Op. 34: 3. Scherzo - Presto
Piano Quintet in G Minor, Op. 34: 4. Finale - Presto
Piano Concerto No. 1 in E Minor, Op. 11: 1. Allegro maestoso
Piano Concerto No. 1 in E Minor, Op. 11: 2. Romanze – Larghetto
Piano Concerto No. 1 in E Minor, Op. 11: 3. Rondo – Vivace
The Pianist (Original Motion Picture Soundtrack)