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 0x139fe7b6c5b712e72ebdff9221826164ecdd58072038f42beb37dc7fc2928d4c. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8156f4ed-e5d5-44f0-89f2-cc113c418fa1.json and https://artists.proofprofile.net/proofs/artist/8156f4ed-e5d5-44f0-89f2-cc113c418fa1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Schumann, R.: Humoreske, Op. 20 / Reger: Variations and Fugue, Op. 81
Variations and Fugue on a Theme of J. S. Bach in B Minor, Op. 81
J.S. Bach: Partitas Nos. 3-5, BWV 827-829
Partita No. 3 In A Minor, BWV 827 : I. Fantasia
Partita No. 3 In A Minor, BWV 827 : II. Allemande
Partita No. 3 In A Minor, BWV 827 : III. Corrente
Partita No. 3 In A Minor, BWV 827 : IV. Sarabande
Partita No. 3 In A Minor, BWV 827 : V. Burlesca
Partita No. 3 In A Minor, BWV 827 : VI. Scherzo
Partita No. 3 In A Minor, BWV 827 : VII. Gigue
Partita No. 4 In D Major, BWV 828 : I. Overture
Partita No. 4 In D Major, BWV 828 : II. Allemande
Partita No. 4 In D Major, BWV 828 : III. Courante
Partita No. 4 In D Major, BWV 828 : IV. Aria
Partita No. 4 In D Major, BWV 828 : V. Sarabande
Partita No. 4 In D Major, BWV 828 : VI. Menuet
Partita No. 4 In D Major, BWV 828 : VII. Gigue
Partita No. 5 In G Major, BWV 829 : I. Praeambulum
Partita No. 5 In G Major, BWV 829 : II. Allemande
Partita No. 5 In G Major, BWV 829 : III. Corrente
Partita No. 5 In G Major, BWV 829 : IV. Sarabande
Partita No. 5 In G Major, BWV 829 : V. Tempo di Minuetta
Partita No. 5 In G Major, BWV 829 : VI. Passepied
Partita No. 5 In G Major, BWV 829 : VII. Gigue
Schumann, R.: Humoreske, Op. 20 / Reger: Variations and Fugue On A Theme of J.S. Bach
Variations and Fugue on a Theme of J.S. Bach, Op. 81
Fantasia, adagio e fuga (After J.S. Bach): Fantasia. Allegro ritenuto
Fantasia, adagio e fuga (After J.S. Bach): Adagio
Fantasia, adagio e fuga (After J.S. Bach): Fuga. Allegro sostenuto e espressivo
Piano Concerto No. 9 in E-Flat Major, K. 271 "Jeunehomme": II. Andantino (Transc. F. Busoni for Piano)
Klavierübung, Pt. 4, 8 Études After Cramer: No. 1 in C Minor
Klavierübung, Pt. 4, 8 Études After Cramer: No. 2 in B-Flat Major
Klavierübung, Pt. 4, 8 Études After Cramer: No. 3 in D Major "En Carillon"
Klavierübung, Pt. 4, 8 Études After Cramer: No. 4 in D Major "Allegro di bravura"
Klavierübung, Pt. 4, 8 Études After Cramer: No. 5 in C Major "Répétition"
Klavierübung, Pt. 4, 8 Études After Cramer: No. 6 in A Major
Klavierübung, Pt. 4, 8 Études After Cramer: No. 7 in G Major "Scherzando"
Klavierübung, Pt. 4, 8 Études After Cramer: No. 8 in A-Flat Major "Finale"
11 Chorale Preludes, Op. 122 (Excerpts Arr. F. Busoni for Piano): No. 4, Herzlich tut mich erfreuen
11 Chorale Preludes, Op. 122 (Excerpts Arr. F. Busoni for Piano): No. 5, Schmücke dich, o liebe Seele
11 Chorale Preludes, Op. 122 (Excerpts Arr. F. Busoni for Piano): No. 8, Es ist ein Ros' entsprungen
11 Chorale Preludes, Op. 122 (Excerpts Arr. F. Busoni for Piano): No. 9, Herzlich tut mich verlangen
11 Chorale Preludes, Op. 122 (Excerpts Arr. F. Busoni for Piano): No. 10, Herzlich tut mich verlangen
11 Chorale Preludes, Op. 122 (Excerpts Arr. F. Busoni for Piano): No. 11, O Welt, ich muß dich lassen
Der Tanz in der Dorfschenke, S. 110 "Mephisto Waltz No. 1" (Arr. F. Busoni for Piano)
Preludio e fuga in C Minor Op. 21, BV 85 in C Minor
Capriccio in B-Flat Major, BWV 992 "On the Departure of the Beloved Brother" (Arr. for Piano by Ferruccio Busoni): I. Arioso. Adagio
Capriccio in B-Flat Major, BWV 992 "On the Departure of the Beloved Brother" (Arr. for Piano by Ferruccio Busoni): II. —
Capriccio in B-Flat Major, BWV 992 "On the Departure of the Beloved Brother" (Arr. for Piano by Ferruccio Busoni): III. Adagiosissimo
Capriccio in B-Flat Major, BWV 992 "On the Departure of the Beloved Brother" (Arr. for Piano by Ferruccio Busoni): IV. —
Capriccio in B-Flat Major, BWV 992 "On the Departure of the Beloved Brother" (Arr. for Piano by Ferruccio Busoni): V. Aria di Postiglione. Allegro poco
Capriccio in B-Flat Major, BWV 992 "On the Departure of the Beloved Brother" (Arr. for Piano by Ferruccio Busoni): VI. Fuga all' imitazione die posta
6 Ecossaises, WoO 83 (Arr. for Piano by Ferruccio Busoni)
Klavierübung in 5 Teilen, BV A 3, Pt. 1: No. 1a, Tempo di valse
Klavierübung in 5 Teilen, BV A 3, Pt. 1: No. 1b, Allegro
Klavierübung in 5 Teilen, BV A 3, Pt. 1: No. 2, Allegro festivo
Klavierübung in 5 Teilen, BV A 3, Pt. 1: No. 3a, Andantino
Klavierübung in 5 Teilen, BV A 3, Pt. 1: No. 3b, Tempo di Valse, moderato
Klavierübung in 5 Teilen, BV A 3, Pt. 1: No. 4, Nach Auber-Liszt. Alla tarantella
Klavierübung in 5 Teilen, BV A 3, Pt. 1: No. 5, Allegro moderato
Klavierübung in 5 Teilen, BV A 3, Pt. 1: No. 6a "À trois mains", Alla tarantella
Klavierübung in 5 Teilen, BV A 3, Pt. 1: No. 6b "À trois mains", Nach Offenbach. Barcarole
Klavierübung in 5 Teilen, BV A 3, Pt. 1: No. 6c "À trois mains", Nach Beethoven
Klavierübung in 5 Teilen, BV A 3, Pt. 2: No. 7a, Moderato
Klavierübung in 5 Teilen, BV A 3, Pt. 2: No. 7b, Nach Bach
Klavierübung in 5 Teilen, BV A 3, Pt. 2: No. 7c, Moderato alla breve
Klavierübung in 5 Teilen, BV A 3, Pt. 2: No. 7d, Nach Gounod
Klavierübung in 5 Teilen, BV A 3, Pt. 2: No. 7e, Allegro
Klavierübung in 5 Teilen, BV A 3, Pt. 2: No. 7f, Nach Liszt
Klavierübung in 5 Teilen, BV A 3, Pt. 2: No. 8a, Nach Beethoven
Klavierübung in 5 Teilen, BV A 3, Pt. 2: No. 8b, Andantino tranquillo
Klavierübung in 5 Teilen, BV A 3, Pt. 2: No. 8c, Tempo di valse, elegantemente
Klavierübung in 5 Teilen, BV A 3, Pt. 2: No. 9a, Nach Schubert
Klavierübung in 5 Teilen, BV A 3, Pt. 2: No. 9b, Aus meinem Concerto
Klavierübung in 5 Teilen, BV A 3, Pt. 3 "Lo staccato": No. 6a, Nach Mendelssohn
Klavierübung in 5 Teilen, BV A 3, Pt. 5: Perpetuum mobile
Violin Sonata No. 26 in B-Flat Major, K. 378: II. Andantino sostenuto e cantabile
Zigeunermelodien (Gypsy Melodies), Op. 55, B. 104: No. 4. Als die alte Mutter (Songs My Mother Taught Me)
24 Preludes, Op. 37: No. 2 in A Minor: Andantino sostenuto
Piano Sonatina No. 5, BV 280 "Sonatina brevis in signo Joannis Sebastiani Magni"
Fantasia contrappuntistica, BV 256a (Edizione minore): Preludio al corale
Fantasia contrappuntistica, BV 256a (Edizione minore): Fuga I
Fantasia contrappuntistica, BV 256a (Edizione minore): Fuga II
Fantasia contrappuntistica, BV 256a (Edizione minore): Fuga III
Fantasia contrappuntistica, BV 256a (Edizione minore): Fuga IV
Prelude, Fugue & Allegro in E-Flat Major, BV B 36 (After J. S. Bach's BWV 998)
Das Orgel-Büchlein, BV B 27: No. 1, Komm, Gott Schöpfer (After J. S. Bach's BWV 667)
Das Orgel-Büchlein, BV B 27: No. 2, Wachet auf, ruft uns die Stimme (After J. S. Bach's BWV 645)
Das Orgel-Büchlein, BV B 27: No. 3, Nun komm' der Heiden Heiland (After J. S. Bach's BWV 659)
Das Orgel-Büchlein, BV B 27: No. 4, Nun freut euch, lieben Christen (After J. S. Bach's BWV 734)
Das Orgel-Büchlein, BV B 27: No. 5, Ich ruf zu dir, Herr (After J. S. Bach's BWV 639)
Das Orgel-Büchlein, BV B 27: No. 6, Herr Gott, nun schleuß den Himmel auf (After J. S. Bach's BWV 617)
Das Orgel-Büchlein, BV B 27: No. 7, Durch Adams Fall (After J. S. Bach's BWV 637)
Das Orgel-Büchlein, BV B 27: No. 8, Durch Adams Fall (After J. S. Bach's BWV 705)
Das Orgel-Büchlein, BV B 27: No. 9, In dir ist Freude (After J. S. Bach's BWV 615)