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 0x5c365480589364e75960df4e898578919d690e0565e726b18563f4ea3125c1d2. 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/2faa1ae8-dab4-4793-8845-355ceb97273d.json and https://artists.proofprofile.net/proofs/artist/2faa1ae8-dab4-4793-8845-355ceb97273d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Debussy: Images Books 1 & 2/Arabesques/Rêverie etc.
Deux Arabesques L. 66: No. 1 Andante con moto
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1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffb71ca2b7d3d0ef95eae3e7064f9c9c140c00da9260a5b17a57633e0de0f32. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5eRfljNo9nICHm8i77T1rA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5eRfljNo9nICHm8i77T1rA.
Beethoven: Clarinet Trio / Brahms: Clarinet Trio
Piano Trio No. 4 in B-Flat Major, Op. 11 "Gassenhauer": I. Allegro con brio
Piano Trio No. 4 in B-Flat Major, Op. 11 "Gassenhauer": II. Adagio
Piano Trio No. 4 in B-Flat Major, Op. 11 "Gassenhauer": III. Thema: Pria ch'io l'impegno (Allegretto) mit Variationen
Trio in A Minor, Op. 114: III. Andantino grazioso
For Children, Vol. 1, Sz. 42 (Excerpts): No. 16, Almost Innocent - No. 17, The Young Bride
8 Piano Pieces, Op. 3: No. 1, Inesorabile
For Children, Vol. 4, Sz. 42 (Excerpts): No. 28, The Shepherd's Pipe - No. 29, A Jest
Cello Sonata, L. 135: I. Prologue (Live)
Piano Sonata No. 14 in C Minor, K. 457: I. Allegro
Cello Sonata, L. 135: II. Sérénade - III. Finale (Live)
Piano Sonata No. 14 in C Minor, K. 457: II. Adagio
8 Piano Pieces, Op. 3: No. 4, Scorrevole
Piano Sonata No. 14 in C Minor, K. 457: III. Molto allegro
8 Piano Pieces, Op. 3: No. 5, Prestissimo possibile
Piano Quintet in A Major, D. 667 "The Trout": IV. Tema con variazioni
Piano Concerto No. 7 in F Major, K. 242 “Lodron”: I. Allegro
Piano Concerto No. 7 in F Major, K. 242 “Lodron”: II. Adagio
Rhapsody No. 1 for Cello & Piano, Sz. 88: I. Moderato
Piano Concerto No. 7 in F Major, K. 242 “Lodron”: III. Rondeau. Tempo di minuetto
4 Dances (What So Proudly We Hail) [Excerpts]: No. 1, —
Rhapsody No. 1 for Cello & Piano, Sz. 88: II. Allegretto moderato
4 Dances (What So Proudly We Hail) [Excerpts]: No. 3, —
Sonata for 2 Pianos & Percussion, Sz. 110: I. Assai lento - Allegro molto (Live)
Sonata for 2 Pianos & Percussion, Sz. 110: II. Lento, ma non troppo (Live)
Kossuth, Sz. 21: II. Why Are You So Grieved, My Dear Husband?
Sonata for 2 Pianos & Percussion, Sz. 110: III. Allegro non troppo (Live)
Kossuth, Sz. 21: III. The Fatherland Is in Danger!
Kossuth, Sz. 21: IV. Formerly We Had a Better Life...
Kossuth, Sz. 21: V. Then Our Fate Changed for the Worse...
Kossuth, Sz. 21: VII. Come, Come! You Splendid Lads You Valiant Hungarian Warriors!
Kossuth, Sz. 21: X. Everything Is Quiet, Very Quiet...
Violin Concerto No. 1, Sz. 36: I. Andante sostenuto
Violin Concerto No. 1, Sz. 36: II. Allegro giocoso
Divertimento for String Orchestra, Sz. 113: I. Allegro non troppo
Divertimento for String Orchestra, Sz. 113: II. Molto adagio
Divertimento for String Orchestra, Sz. 113: III. Allegro assai
Bach: Keyboard Concertos, Bwv 1052, Bwv 1053, Bwv 1060 and Bwv 1061
Piano Concerto No. 1 in D Minor, BWV 1052: I. Allegro
Piano Concerto No. 1 in D Minor, BWV 1052: II. Adagio
Piano Concerto No. 1 in D Minor, BWV 1052: III. Allegro
Harpsichord Concerto in E Major, BWV 1053: I. Allegro
Harpsichord Concerto in E Major, BWV 1053: II. Siciliano
Harpsichord Concerto in E Major, BWV 1053: III. Allegro
Concerto for 2 Keyboards in C Major, BWV 1061: I. Allegro
Concerto for 2 Keyboards in C Major, BWV 1061: II. Adagio
Concerto for 2 Keyboards in C Major, BWV 1061: III. Fuga
Concerto for 2 Keyboards in C Minor, Bwv 1060: I. Allegro
Concerto for 2 Keyboards in C Minor, Bwv 1060: II. Adagio
Concerto for 2 Keyboards in C Minor, Bwv 1060: III. Allegro
6 Roumanian Folk Dances, BB 68, Sz. 56: 3. In One Spot
Debussy / Bartok / Faure / Kodaly: Music for Cello and Piano
Classical Brain Power - Over 7 Hours of Music for Concentration, Productive Learning, Studying and Working
Classical Music for Learning: Great Masterpieces to Improve Studying and Mental Focus
The 101 Most Essential Classical Music Pieces Ever
Suite bergamasque, CD 82: III. Clair de lune
Sleep: 111 Klassische Werke Zum Einschlafen
14 Songs, Op. 34: No. 14. Vocalise (arr. Z. Kocsis)
3 Chorale Preludes (arr. Z. Kodaly): Ach, was ist doch unser Leben, BWV 743
3 Chorale Preludes (arr. Z. Kodaly): Vater unser im Himmelreich, BWV 762
3 Chorale Preludes (arr. Z. Kodaly): Christus, der uns selig macht, BWV 747