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 0xa2bc061c9c51895cd464b01c6a391d3fdb9b74cfaa6315859f3a88eaa45cad84. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/63eb278b-1bd3-4220-ac8c-95bdbdb957fd.json and https://artists.proofprofile.net/proofs/artist/63eb278b-1bd3-4220-ac8c-95bdbdb957fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Osetinskaya Plays Rachmaninoff & Prokofiev
Morceaux de fantaisie, Op. 3: No. 2, Prélude
10 Preludes, Op. 23: No. 1 in F-Sharp Minor
10 Preludes, Op. 23: No. 2 in B-Flat Major
10 Preludes, Op. 23: No. 6 in E-Flat Major
13 Preludes, Op. 32: No. 12 in G-Sharp Minor
Piano Sonata No. 8, Op. 84: I. Andante dolce
Piano Sonata No. 8, Op. 84: II. Andante sognando
4 Pieces for Piano, Op. 4: No. 4, Suggestion diabolique
Suite del Casanova di Federico Fellini: I. O Venezia, Venaga, Venusia
Suite del Casanova di Federico Fellini: II. L'uccello magico
Suite del Casanova di Federico Fellini: III. Intermezzo della mantide religiosa
Suite del Casanova di Federico Fellini: IV. The Great Mouna
Suite del Casanova di Federico Fellini: V. Il duca di Württemberg I
Suite del Casanova di Federico Fellini: VI. Il duca di Württemberg II
Suite del Casanova di Federico Fellini: VII. La poupée automate
15 Preludes: No. 2, Allegro, ma espressivo e delicato
15 Preludes: No. 3, Allegretto con spirito
15 Preludes: No. 4, Andante sostenuto ed espressivo
15 Preludes: No. 9, Allegretto quasi andantino
15 Preludes: No. 10, Allegro mosso e marcato
15 Preludes: No. 14, Allegro non troppo e marcato
Reminiscences of the Theatre: No. 1, Overture "Masque"
Reminiscences of the Theatre: No. 2, From Kashchey's Life
Reminiscences of the Theatre: No. 3, Vaudeville
Reminiscences of the Theatre: No. 4, Elegy "Jamais"
Reminiscences of the Theatre: No. 5, Rondeau-Chase
Reminiscences of the Theatre: No. 6, Glockenspiel
Reminiscences of the Theatre: No. 7, Finale "Masque"
Credit Titles (From "Evenings Near Moscow")
Suite from Federico Fellini's Casanova: O Venezia, Venaga, Venusia
Suite from Federico Fellini's Casanova: L'uccello magico
Suite from Federico Fellini's Casanova: Intermezzo della mantide religiosa
Suite from Federico Fellini's Casanova: The Great Mouna
Suite from Federico Fellini's Casanova: Il duca di Wurttemberg - Part one
Suite from Federico Fellini's Casanova: Il duca di Wurttemberg Part two
Suite from Federico Fellini's Casanova: La Poupee automate
15 Preludes for Piano: Allegro, ma expressivo e delicate
15 Preludes for Piano: Allegretto con spirit
15 Preludes for Piano: Andante sost.ed espressivo
15 Preludes for Piano: Allegro con spirit
15 Preludes for Piano: Lento con accento
15 Preludes for Piano: Allegretto quasi andantino
15 Preludes for Piano: Allegro mosso e marcato
15 Preludes for Piano: Andante senza lentezza
15 Preludes for Piano: Andante cantabile
15 Preludes for Piano: Allegro non troppo e marcato
Theatre Echoes - Suite for Piano: Overture, Masque
Theatre Echoes - Suite for Piano: From Kashchey's Life
Theatre Echoes - Suite for Piano: Vaudeville
Theatre Echoes - Suite for Piano: Jamais....(Elegy)
Theatre Echoes - Suite for Piano: Rondeau chase
Theatre Echoes - Suite for Piano: Little Bells (to the memory of E. Rosenfield)
Theatre Echoes - Suite for Piano: Finale. Masque
Lullaby - From the Film Breathing In - Breathing Out
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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6779753be8fcc1f33ada22237d530700922c1eb127a5d3b39e6cf437951615. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:09:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGCS1500038.
4 Pieces, Op. 2: I. Wiegenlied / Lullaby
Albumblatter, Op. 124: No.16 Schlummerlied
Nun komm, der Heiden Heiland, BWV 659 (Arr. Wilhelm Kempff)
Herz und Mund und Tat und Leben, BWV 147: No. 10, Jesus bleibet meine Freude (Arr. Wilhelm Kempff)
Italienisches Konzert, BWV 971: II. Andante
Italienisches Konzert, BWV 971: III. Presto
Ich ruf zu dir Herr Jesu Christ, BWV 639 (Arr. Wilhelm Kempff)
Wachet auf, ruft uns die Stimme, BWV 645 (Arr. Wilhelm Kempff)
Flute Sonata in E-Flat Major, BWV 1031: II. Siciliano (Arr. Wilhelm Kempff)
Prelude B Minor, BWV 855 (Arr. Alexander Siloti)
Organ Concerto in D Minor, BWV 596: II. Largo e spiccato "Sicilienne" (Arr. Alexandre Tharaud)
Was mir behagt, ist nur die muntre Jagd, BWV 208: No. 9, Schafe können sicher weiden (Arr. Egon Petri)
Prelude B Minor, BWV 855a (Arr. Alexander Siloti)
24 Morceaux caractéristiques, Op. 36: No. 10, Ne m'oubliez pas (Arr. Konstantin Mostras)
6 Romances, Op. 38: No. 3, Daisies (Arr. Jascha Heifetz)
Concert Suite for Violin and Orchestra in G Minor, Op. 28: No. 3, Fairy Tale (Arr. for Violin and Piano)
Violin Sonata No. 1 in B Minor, Op. 21: I. Canzona
Violin Sonata No. 1 in B Minor, Op. 21: II. Danza
Violin Sonata No. 1 in B Minor, Op. 21: III. Ditirambo
Petrouchka: Russian Dance (Arr. Samuel Dushkin)
2 Tales, Op. 20: No. 1 in B-Flat Minor (Arr. Jascha Heifetz)
6 Tales, Op. 51: No. 3, Allegretto tranquillo e grazioso
Ich ruf zu dir Herr Jesu Christ, BWV 639
Flute Sonata in E-Flat Major, BWV 1031: II. Siciliano
Passacaglia and Fugue in C Minor, BWV 582
Suite in D Minor, HWV 437: III. Saraband
Suite in E Minor, RCT 2: V. Le rappel des oiseaux
Suite in E Minor, RCT 2: VIII. Tambourin
Suite in E Minor, RCT 2: IX. La Villageois
Suite in D Minor, RCT 3: I. Les tendres plaintes
Suite in D Minor, RCT 3: II. Les Niais de Sologne
Suite in D Minor, RCT 3: III. Les Soupirs
Suite in D Minor, RCT 3: VI. L'Entretien des Muses
Suite in D Minor, RCT 3: VIII. Les Cyclopes
33 Miniatures: No. 3, When Almonds Blossomed
33 Miniatures: No. 9, Mother Courage and her Children
33 Miniatures: No. 11, The Blue Mountains
33 Miniatures: No. 12, Waiting for Godot
33 Miniatures: No. 15, The Caucasian Chalk Circle
33 Miniatures: No. 16, The Role for a Beginner
33 Miniatures: No. 30, The Role of a Beginner
33 Miniatures: No. 33, Romeo and Juliet - Bonus Track
The Seasons, Op. 37a: V. May "White Nights"