thumb|250px|right|Anton Arensky, 1895 Anton Stepanovich Arensky (; – ) was a Russian composer of Romantic classical music, a pianist and a professor of music. Biography Arensky was born into an affl
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2c633b801fba15b506d283f1391d38780cee0b0d598b13b6d137f7ecb98a74. 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/75f4f37c-983d-4587-9804-4cd2b1ce6dc0.json and https://artists.proofprofile.net/proofs/artist/75f4f37c-983d-4587-9804-4cd2b1ce6dc0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music for Strings by: Elgar, Arensky, Tchaikovsky, Fuchs
Variations on a Theme by Tchaikovsky, Op. 35a: III. Var. II. Allegro non Troppo
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
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Egyptian Nights, Op. 50a: V. Snake Charmer
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Arensky: 24 Morceaux caractéristiques, Op. 36
Variations on a Theme by Tchaikovsky, Op. 35a (Live)
Variations on a Theme by Tchaikovsky, Op. 35a: Theme. Moderato - Live
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Variations on a Theme by Tchaikovsky, Op. 35a: Var. I. Un poco più mosso - Live
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Variations on a Theme by Tchaikovsky, Op. 35a: Var. II. Allegro non troppo - Live
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Variations on a Theme of Tchaikovsky, Op. 35a: Var. III. Andantino tranquillo - Live
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Variations on a Theme by Tchaikovsky, Op. 35a: Var. IV. Vivace - Live
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Variations on a Theme by Tchaikovsky, Op. 35a: Var. V. Andante - Live
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Variations on a Theme by Tchaikovsky, Op. 35a: Var. VI. Allegro con spirito - Live
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Variations on a Theme by Tchaikovsky, Op. 35a: Var. VII. Andante con moto - Live
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Variations on a Theme by Tchaikovsky, Op. 35a: Coda. Moderato - Live
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Variations on a Theme by Tchaikovsky, Op. 35a
Variations on a Theme by Tchaikovsky, Op. 35a: Theme. Moderato
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Variations on a Theme by Tchaikovsky, Op. 35a: Var. I. Un poco più mosso
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Variations on a Theme by Tchaikovsky, Op. 35a: Var. II. Allegro non troppo
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Variations on a Theme by Tchaikovsky, Op. 35a: Var. III. Andantino tranquillo
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Variations on a Theme by Tchaikovsky, Op. 35a: Var. IV. Vivace
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Variations on a Theme by Tchaikovsky, Op. 35a: Var. V. Andante
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Variations on a Theme by Tchaikovsky, Op. 35a: Var. VI. Allegro con spirito
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Variations on a Theme by Tchaikovsky, Op. 35a: Var. VII. Andante con moto
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Variations on a Theme by Tchaikovsky, Op. 35a: Coda. Moderato
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Arensky: 24 Morceaux caractéristiques, Op. 36 (Live)
Piano Trio No. 1 in D Minor, Op. 32: I. Allegro moderato
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Piano Trio No. 1 in D Minor, Op. 32: III. Elegia. Adagio
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Arensky: Natalia Gutman Portrait Series, Vol. IX
Arensky: 12 Pieces for Piano 4 Hands, Op. 66
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Russian Piano Music Series, Vol. 5 - Arensky
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Arensky: String Quartets Nos. 1 & 2 - Piano Quintet
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Pres de la mer, Op. 52: No. 4. Allegro moderato
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Arensky, A.: Piano Concerto / Ryabinin Fantasia / To the Memory of Suvorov / Symphonic Scherzo
Arensky: Violin Concerto; Taneyev: Suite de concert (Hyperion Romantic Violin Concerto 7)
Arensky, A.S.: Raphael [Opera] / Songs and Romances
Suite No. 2, Op. 23, "Silhouettes" (version for orchestra): I. Le Savant (The Scholar)
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Russian Images, Vol. 2: Songs for Bass & Piano
Russian Images, Vol. 1: Songs for Bass & Piano
Egipetskiye nochi (Egyptian Nights), Op. 50: Ouverture
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Egipetskiye nochi (Egyptian Nights), Op. 50: No. 1: Scene et danse de coquetterie
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Egipetskiye nochi (Egyptian Nights), Op. 50: No. 8: Charmeuse des serpents : Deuxieme danse d'Arsinoe
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Egipetskiye nochi (Egyptian Nights), Op. 50: No. 10: Pas de deux (Tempo di valse)
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Arensky, A.S.: Piano Concerto in F Minor / 12 Etudes
Piano Concerto in F Minor, Op. 2: I. Allegro maestoso
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Piano Concerto in F Minor, Op. 2: II. Andante con moto
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Arensky: String Quartets Nos. 1 and 2 / Piano Quintet, Op. 51
Piano Trio No. 1 in D minor, Op. 32: 1. Allegro moderato - Adagio
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Piano Trio No. 1 in D minor, Op. 32: 2. Scherzo: Allegro molto
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Piano Trio No. 1 in D minor, Op. 32: 3. Elegia: Adagio
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Piano Trio No. 1 in D minor, Op. 32: 4. Finale: Allegro non troppo - Andante - Adagio - Allegro molto
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Piano Trio No. 2 in F minor, Op. 73: 1. Allegro moderato
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Piano Trio No. 2 in F minor, Op. 73: 2. Romanza: Andante
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Piano Trio No. 2 in F minor, Op. 73: 3. Scherzo: Presto
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Piano Trio No. 2 in F minor, Op. 73: 4. Tema con variazioni Tema: Allegro non troppo
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Piano Trio No. 2 in F minor, Op. 73: Variation I: Un poco più mosso
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Piano Trio No. 2 in F minor, Op. 73: Variation II: Allegro
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Piano Trio No. 2 in F minor, Op. 73: Variation III: Allegro moderato
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Piano Trio No. 2 in F minor, Op. 73: Variation IV: Allegro
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Piano Trio No. 2 in F minor, Op. 73: Variation V: Tempo di valse
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Piano Trio No. 2 in F minor, Op. 73: Variation VI: Allegro
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Suite No. 3, Op. 33, "Variations in C Major": II. Valse. Allegro
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Romantic Composers: Dvořák, Tchaikovsky, Brahms...
Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Thema. Chorale St. Antoni
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Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation I. Poco più animato
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Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation II. Più vivace
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Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation III. Con moto
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Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation IV. Andante con moto
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Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation V. Vivace
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Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation VI. Vivace
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Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation VII. Grazioso
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Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation VIII. Presto non troppo
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Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Finale
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Berlioz: La Damnation de Faust, Op. 24, H 111: Menuet des follets
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Berlioz: La Damnation de Faust, Op. 24, H 111: Danse des sylphes
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Berlioz: La Damnation de Faust, Op. 24, H 111: Marche hongroise
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Elgar: Variations on an Original Theme, Op. 36 "Enigma": Theme
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Elgar: Variations on an Original Theme, Op. 36 "Enigma": Introduction - Variation I. L'istesso tempo "C.A.E."
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Elgar: Variations on an Original Theme, Op. 36 "Enigma": Variation II. Allegro "H.D.S-P."
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Elgar: Variations on an Original Theme, Op. 36 "Enigma": Variation III. Allegretto "R.B.T."
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Elgar: Variations on an Original Theme, Op. 36 "Enigma": Variation V. Moderato "R.P.A."
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Elgar: Variations on an Original Theme, Op. 36 "Enigma": Variation VI. Andantino "Ysobel"
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Elgar: Variations on an Original Theme, Op. 36 "Enigma": Variation VII. Presto "Troyte"
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Elgar: Variations on an Original Theme, Op. 36 "Enigma": Variation VIII. Allegretto "W.N."
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Elgar: Variations on an Original Theme, Op. 36 "Enigma": Variation IX. Adagio "Nimrod"
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Grieg: Suite No. 1 from Peer Gynt, Op. 46: I. Morning Mood
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Grieg: Suite No. 1 from Peer Gynt, Op. 46: II. Death of Åse
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Elgar: Serenade for Strings in E Minor, Op. 20: I. Allegro piacevole
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Arensky: Variations on a Theme of Tchaikovsky, Op. 35a: Theme. Moderato
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Arensky: Variations on a Theme of Tchaikovsky, Op. 35a: Variation I. Un poco più mosso
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Arensky: Variations on a Theme of Tchaikovsky, Op. 35a: Variation III. Andantino tranquillo
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Arensky: 12 Preludes, Op. 63 - Arabesques, Op. 67
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Symphony No. 1 in B Minor, Op. 4: II. Andante pastorale con moto
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Variations on a Theme by Tchaikovsky, Op. 35a: Variation III. Andantino tranquillo
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Three Vocal Quartets, Op. 57: I. Serenade
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Three Vocal Quartets, Op. 57: II. To the Dying Stars
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