1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x8ba23ef803e0d2eff42aa5840eb05ba491acaf430b714405db60fa60453ae567. 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/20419a64-8988-4d41-92a0-b94be7169395.json and https://artists.proofprofile.net/proofs/artist/20419a64-8988-4d41-92a0-b94be7169395.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mendelssohn: Symphonies Nos. 3, "Scottish" and 4, "Italian"
Frédéric Chopin: Piano Concerto No. 2, Op. 21
Green Edition - Chopin: Mazurkas Op. 24, 30 & Piano Concerto No. 2, Op. 21
Green Edition - Chopin: Piano Concerto No. 2, Op. 21 & Mazurkas Op. 6, 7, 17
101 Classics - The Best Loved Classical Melodies
An der schonen, blauen Donau (The Beautiful Blue Danube), Op. 314
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Piano Concerto No. 1 in B-Flat Minor, Op. 23: I. Allegro non troppo e molto maestoso (Opening)
Polish National Radio Symphony Orchestra
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Emperor Waltz, Op. 437: Kaiser Walzer (Emperor Waltz), Op. 437
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The Danube Waves: Valurile Dunarii (The Danube Waves)
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Serenade for Strings in C Major, Op. 48: II. Walzer
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Les Patineurs, Op. 183, "The Skater's Waltz"
Slovak State Philharmonic Orchestra, Kosice
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The Nutcracker Suite, Op. 71a: VIII. Waltz of the Flowers
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Lakmé: Blumenduett (Lara Croft Tomb Raider): Lakme, Act I: Dome epais, "Flower Duet"
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Symphony No. 5 in C-Sharp Minor: IV. Adagietto: Sehr langsam
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Die Zauberflote (The Magic Flute), K. 620, Act II: Der Holle Rache… (Queen of the Night)
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Peer Gynt Suite No. 1, Op. 46: IV. In the Hall of the Mountain King
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Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
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The 4 Seasons: Violin Concerto in E Major, Op. 8, No. 1, RV 269, "La primavera" (Spring): The Four Seasons: Violin Concerto in E Major, Op. 8, No. 1, RV 269, "Spring": I. Allegro
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Swan Lake, Op. 20, Act II No. 10: Scene, "Swan Theme"
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Violin Partita No. 3 in E Major, BWV 1006: I. Preludio
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Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
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Liebesträume, S. 541: 3 Liebestraume, S541/R211: No. 3: Nocturne in A-Flat Major
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Bagatelle in A Minor, WoO 59, "Fur Elise"
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Brandenburg Concerto No. 3 in G Major, BWV 1048: III. Allegro
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Mandolin Concerto in C Major, RV 425: I. Allegro
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Die Walkure, Act III: Ride of the Valkyries
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Toccata and Fugue in D Minor, BWV 565: Toccata
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1812 Festival Overture, Op. 49: 1812 Overture, Op. 49
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Nocturne No. 2 in E-Flat Major, Op. 9, No. 2
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The Planets, Op. 32: IV. Jupiter, the Bringer of Jollity
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Music for the Royal Fireworks, HWV 351: IV. Le rejouissance
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3 Gymnopedies: No. 1. Lent et douloureux
Orchestre Symphonique et Lyrique de Nancy
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Piano Concerto in A Minor, Op. 16: I. Allegro moderato
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The Well-Tempered Clavier, Book I: Well-Tempered Clavier, Book I: Prelude and Fugue No. 1 in C Major, BWV 846
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The 4 Seasons: Violin Concerto in F Minor, Op. 8, No. 4, RV 297, "L'inverno" (Winter): II. Largo
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Rinaldo, HWV 7a: Lascia ch'io pianga (Let me lament)
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27, No. 2, "Moonlight": I. Adagio sostenuto
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Suite bergamasque: III. Clair de lune (orch. A. Caplet)
Rheinland-Pfalz State Philharmonic Orchestra
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Gianni Schicchi: O mio babbino caro (Lauretta)
Belgian Radio and Television Philharmonic Orchestra
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Serse (Xerxes), HWV 40, Act I: Ombra mai fu: Largo (Serse)
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Nabucco, Act III: Va, pensiero, "Chorus of Hebrew Slaves"
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Prélude à l'après-midi d'un faune, L. 86: Prelude a l'apres-midi d'un faune
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Le nozze di Figaro, K. 492, Act I: Overture
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La crème de la crème: La musique classique
Celebrate Beethoven: Rarities & World Premieres
Takako Nishizaki Plays Suzuki Evergreens, Vol. 3
Violin Concerto No. 2 in G Major, Op. 13: I. Allegro non troppo
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Violin Concerto No. 2 in G Major, Op. 13: II. Adagio
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Violin Concerto No. 2 in G Major, Op. 13: III. Allegro moderato
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Violin Concerto No. 5, Op. 22 (arr. for violin and piano): I. Allegro moderato
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Violin Concerto No. 5, Op. 22 (arr. for violin and piano): II. Andante cantabile
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Violin Concerto No. 5, Op. 22 (arr. for violin and piano): III. Rondo
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Wiegenlied (Lullaby), Op. 98, No. 2, D. 498 (arr. for violin and piano)
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5 Lieder, Op. 49: No. 4. Wiegenlied (Lullaby) (arr. for violin and piano)
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Violin Concerto in A Minor, Op. 3, No. 6, RV 356: I. Allegro (arr. for violin and piano)
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Violin Concerto in A Minor, Op. 3, No. 6, RV 356: I. Allegro
New Zealand National Youth Orchestra, strings
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Violin Concerto in A Minor, Op. 3, No. 6, RV 356: III. Presto (arr. for violin and piano)
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Violin Concerto in A Minor, Op. 3, No. 6, RV 356: III. Presto
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Concerto for Two Violins in D Minor, BWV 1043: I. Vivace (arr. for violin and piano, Violin II only)
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Concerto for 2 Violins in D Minor, BWV 1043: I. Vivace
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The 4 Seasons: Violin Concerto in G Minor, Op. 8, No. 2, RV 315, "L'estate" (Summer): III. Presto
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Skona Grona Dagar (Beautiful Green Days)
Concerto for 2 Violins in D Minor, BWV 1043: II. Largo ma non tanto
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Canon and Gigue in D Major: Canon in D Major
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24 Caprices, Op. 1: Caprice No. 24 in A Minor, Op. 1, No. 24
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The A to Z of Classical Music (3rd Expanded Edition, 2009)
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Vivaldi: 4 Seasons (The) / Wind Concertos
Bach to Work: Classical Music for Work or Study
Night Driving? Opera will keep you Awake!
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Libuše, JB 1:102, Act III: Libuše´s Prophecy, Picture VI, The Royal Castle in Prague Czech People Shall Never Perish (Libuše, kněžna česká)
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A Guided Tour of the Romantic Era, Vol. 8
Kozeluch: Piano Concertos Nos. 1, 4 and 5
Piano Concerto No. 1 in F Major: I. Allegro
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Piano Concerto No. 1 in F Major: II. Adagio
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40 of the Best: Classical Music to Drive With
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Takako Nishizaki Plays Suzuki Evergreens, Vol. 4
Cello Suite No. 6 in D Major, BWV 1012: V. Gavotte I and II (arr. for violin and piano)
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Cello Suite No. 6 in D Major, BWV 1012: V. Gavotte I and II
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Violin Concerto in A Minor, Op. 3, No. 6, RV 356: II. Largo (arr. for violin and piano)
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Violin Concerto in G Minor, Op. 12, No. 1, RV 317 (arr. for violin and piano): I. Allegro
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Violin Concerto in G Minor, Op. 12, No. 1, RV 317 (arr. for violin and piano): II. Adagio
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Violin Concerto in G Minor, Op. 12, No. 1, RV 317 (arr. for violin and piano): III. Allegro
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Violin Concerto in G Minor, Op. 12, No. 1, RV 317: I. Allegro
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Violin Concerto in G Minor, Op. 12, No. 1, RV 317: II. Largo - Adagio
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Violin Concerto in G Minor, Op. 12, No. 1, RV 317: III. Allegro
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Country Dance (arr. for violin and piano)
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German Dance (arr. for violin and piano)
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Violin Sonata in D Minor, Op. 2, No. 7: Gigue (arr. for violin and piano)
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Concerto for Two Violins in D Minor, BWV 1043: I. Vivace (arr. for violin and piano, Violin I only)
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Blue Edition - Chopin: Polonaise-Fantaisie & Piano Concerto No. 2, Op. 21
Blue Edition - Chopin: "Heroic Polonaise" & Piano Concerto No. 2, Op. 21
Polonaise in A-Flat Major, Op. 53 "Heroic Polonaise"
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Classical Selection - Chopin: Piano Concerto No. 2 & Sonata No. 3
Chopin - Concerto for Piano & Orchestra Nº 2
Los Grandes de la Musica Clasica - George Handel Vol. 1
Frédéric Chopin - Colección Completa de Valses
Mozart: Così fan tutte, K. 588 (Digitally Remastered)
Chopin: Concerto for Piano and Orchestra No. 2 in F Minor, Op. 21 (Digitally Remastered)
Takako Nishizaki Plays Suzuki Evergreens, Vol. 6
String Quartet No. 15 in D Minor, K. 421: III. Menuetto (arr. for violin and piano)
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Concerto Grosso in F Major, Op. 6, No. 9: III. Corrente (arr. for violin and piano)
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Concerto Grosso in F Major, Op. 6, No. 9: III. Corrente
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Violin Sonata No. 3 in A Major, Op. 1, No. 3, HWV 361: II. Allegro
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Violin Sonata No. 3 in A Major, Op. 1, No. 3, HWV 361: III. Adagio
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Violin Sonata No. 3 in A Major, Op. 1, No. 3, HWV 361: IV. Allegro
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Violin Concerto in A Minor, BWV 1041 (arr. for violin and piano): II. Andante
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Violin Concerto in A Minor, BWV 1041 (arr. for violin and piano): III. Allegro assai
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Violin Concerto in A Minor, BWV 1041: I. Allegro
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Cello Suite No. 1 in G Major, BWV 1007: VI. Gigue
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Cello Suite No. 1 in G Major, BWV 1007: III. Courante (arr. for violin and piano)
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Violin Sonata in D Major, Op. 5, No. 1: III. Allegro (arr. for violin and piano)
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Handel: Fireworks Music Suite - Water Music Suite Nos. 1 & 2
Music for the Royal Fireworks, HWV 351: IV. La Paix
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Water Music Suite No. 1 in F, HWV 348: I. Prelude
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Water Music Suite No. 1 in F, HWV 348: VI. Menuet 1
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Water Music Suite No. 2 in D, HWV 349: IV. Andante, Allegro
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Water Music Suite No. 1 in F, HWV 348: II. Menuet 1
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Concerto Grosso, Op. 6: No. 1 in G Major, HWV 319: IV. Allegro
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Concerto Grosso, Op. 6: No. 1 in G Major, HWV 319: V. Allegro
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Concerto Grosso, Op. 6: No. 2 in F Major, HWV 320: II. Allegro
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Concerto Grosso, Op. 6: No. 9 in F Major, HWV 327: II. Allegro
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Concerto Grosso, Op. 6: No. 3 in E Minor, HWV 321: III. Allegro
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Concerto Grosso, Op. 6: No. 5 in D Major, HWV 323: I. Larghetto e staccatto
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Don Giovanni Highlights - Overture and Arias
Bach: The Complete Brandenburg Concertos
Concerto No. 3 in G Major, BWV1048, I. Allegro
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Handel: Wassermusik, No. 1, HWV 348 - Concerto grosso, Op. 6/7, Op. 6/10 & Op. 6/12
Mendelssohn / Liszt / Grieg: Piano Concertos
Mendelssohn: Piano Concerto Nos. 1 & 2 - Haydn: Piano Concerto in D Major
Concerto for 2 violins in D Minor, BWV 1043: Largo ma non troppo
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Concerto for 2 violins in D Minor, BWV 1043: Largo ma non tanto
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Uplifting Classical - Music to energize your mood
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Piano Concerto No. 2 In F Minor Op 21: II. Larghetto
100 Most Relaxing Classical Music In The Universe
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Concerto in C Major, RV 444: Sopranino Recorder Concerto in C Major, RV 444
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Concerto for 2 Violins in D Minor, Bwv 1043: Ii. Largo ma non tanto
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