alt=White man playing the cello, seen semi-profile|thumb|Tortelier in 1948 Paul Tortelier (21 March 1914 – 18 December 1990) was a French cellist and composer. After an outstanding student career at t
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 0xcf1470d489268e00af660900349ee19cc5d7f3862cbc639c6d865c01e15e3e76. 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/f1f120d1-650a-4f57-855a-aef00ec2f550.json and https://artists.proofprofile.net/proofs/artist/f1f120d1-650a-4f57-855a-aef00ec2f550.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Brahms: Piano Quartet No. 3, Op. 60 & Piano Trio No. 2, Op. 87
Christian Ferras, Vol. 2: Beethoven Triple & Brahms Double Concertos (Live)
Beethoven: Symphonies Nos. 5 & 7 - Dvořák: Symphony No. 9 & Cello Concerto
Lalo: Symphonie espagnole, Op. 21 & Cello Concerto
Smörgasbord: Encores and Short Pieces for Cello and Piano
6 Pieces for Violin and Piano, Op. 79: VI. Berceuse
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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Schubert: Arpeggione Sonata, D. 821, Paul Tortelier vs. Maurice Gendron (Compare 2 Versions)
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Shostakovich: Concerto for Piano, Trumpet and Strings, Piano Concerto No. 2, Cello Concerto No. 1 & Fantastic Dances
Shostakovich: 3 Fantastic Dances, Op. 5: No. 1, Allegretto
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Shostakovich: Concerto for Piano, Trumpet and String Orchestra No. 1 in C Minor, Op. 35: I. Allegretto
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Shostakovich: Concerto for Piano, Trumpet and String Orchestra No. 1 in C Minor, Op. 35: II. Lento
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Shostakovich: Concerto for Piano, Trumpet and String Orchestra No. 1 in C Minor, Op. 35: IV. Allegro con brio
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Shostakovich: Piano Concerto No. 2 in F Major, Op. 102: II. Andante
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Beethoven: Complete Cello Sonatas & Variations
Beethoven: Cello Sonata No. 3 in A Major, Op. 69: I. Allegro ma non tanto
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Beethoven: Cello Sonata No. 3 in A Major, Op. 69: II. Scherzo
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Paul Tortelier: RIAS Recordings (Cello Works by Beethoven, Mendelssohn, Brahms, Bach, Fauré, Paganini, Schumann, Casella, Kodály & Tortelier)
Fantasy Pieces, Op. 73 'Fantasiestücke': I. Zart und mit Ausdruck
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Cello Suite No. 1 in G Major, BWV 1007: I. Prélude
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Cello Suite No. 1 in G Major, BWV 1007: II. Allemande
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Cello Suite No. 1 in G Major, BWV 1007: III. Courante
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Cello Suite No. 1 in G Major, BWV 1007: IV. Sarabande
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Elgar: Cello Concerto; Serenade for Strings
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Debussy: La mer and Cello Sonata in D Minor
Bach: Complete Cello Suites, Pierre Fournier vs. Paul Tortelier (Compare 2 Versions)
Strauss: Don Quixonte; Till Eulenspiegel
Suite No. 1 for Cello Solo in G Major, BWV1007 : I. Prelude
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Dvořák: Cello Concerto in B Minor, Op. 104
Shostakovich: Cello Concerto No. 1 & Violin Concerto No. 1
Tchaikovsky: Variations on a Rococo Theme; Lalo: Cello Conceto etc.
Elgar: Falstaff, Cello Concerto & Transcriptions
Elgar: Overture in D Minor (After Handel's Chandos Anthem No. 2)
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Elgar: Fantasia and Fugue in C Minor, Op. 86: Fantasia (After Bach's Fantasia, BWV 537)
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Elgar: Fantasia and Fugue in C Minor, Op. 86: Fugue (After Bach's Fugue, BWV 537)
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Elgar: Falstaff, Op. 68: I. Falstaff and Prince Henry
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Allemande suite violonce n1 sol maj bwv1007
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Courante suite n1 violoncel sol maj bwv1007
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Sarabande suite violonce n1 sol maj bwv1007
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Menuettos 1 2 suite vlc n1 sol maj bwv1007
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Gigue suite violoncelle n1 sol maj bwv1007
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Prelude suite violoncelle n2 re min bwv1008
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Sarabande suite violoncel n2 re min bwv1008
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Suite Pour Violoncelle Seul N°3 En Ut Majeur BWV 1009 : Prélude - Remasterisé En 1987
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Suite Pour Violoncelle Seul N°3 En Ut Majeur BWV 1009 : Bourrées 1 Et 2 - Remasterisé En 1987
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Dvořák: Cello Concerto - Brahms: Double Concerto
Elgar: Cello Concerto - Tchaikovsky: Rococo Variations
Paul Tortelier : Concertos pour violoncelle
Bach, JS: Cello Suite No. 2 in D Minor, BWV 1008: I. Prelude
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Bach, JS: Cello Suite No. 1 in G Major, BWV 1007: I. Prelude
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Bach, JS: Cello Suite No. 2 in D Minor, BWV 1008: II. Allemande
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Bach, JS: Cello Suite No. 1 in G Major, BWV 1007: II. Allemande
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Bach, JS: Cello Suite No. 2 in D Minor, BWV 1008: III. Courante
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Bach, JS: Cello Suite No. 1 in G Major, BWV 1007: III. Courante
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Bach, JS: Cello Suite No. 2 in D Minor, BWV 1008: IV. Sarabande
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Bach, JS: Cello Suite No. 1 in G Major, BWV 1007: IV. Sarabande
Bach, JS: Cello Suite No. 1 in G Major, BWV 1007: V. Menuet I
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Bach, JS: Cello Suite No. 2 in D Minor, BWV 1008: VI. Menuet II
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Bach, JS: Cello Suite No. 1 in G Major, BWV 1007: VI. Menuet II
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Bach, JS: Cello Suite No. 2 in D Minor, BWV 1008: VII. Gigue
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Bach, JS: Cello Suite No. 1 in G Major, BWV 1007: VII. Gigue
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Bach, JS: Cello Suite No. 3 in C Major, BWV 1009: I. Prelude
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Bach, JS: Cello Suite No. 4 in E-Flat Major, BWV 1010: I. Prelude
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Bach, JS: Cello Suite No. 3 in C Major, BWV 1009: II. Allemande
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Bach, JS: Cello Suite No. 4 in E-Flat Major, BWV 1010: II. Allemande
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Bach, JS: Cello Suite No. 3 in C Major, BWV 1009: III. Courante
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Bach, JS: Cello Suite No. 4 in E-Flat Major, BWV 1010: III. Courante
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Bach, JS: Cello Suite No. 3 in C Major, BWV 1009: IV. Sarabande
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Bach, JS: Cello Suite No. 4 in E-Flat Major, BWV 1010: IV. Sarabande
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Bach, JS: Cello Suite No. 3 in C Major, BWV 1009: V. Bourrée I
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Bach, JS: Cello Suite No. 4 in E-Flat Major, BWV 1010: V. Bourrée I
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Bach, JS: Cello Suite No. 3 in C Major, BWV 1009: VI. Bourrée II
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Bach, JS: Cello Suite No. 4 in E-Flat Major, BWV 1010: VI. Bourrée II
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Bach, JS: Cello Suite No. 3 in C Major, BWV 1009: VII. Gigue
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Bach, JS: Cello Suite No. 4 in E-Flat Major, BWV 1010: VII. Gigue
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Bach, JS: Cello Suite No. 6 in D Major, BWV 1012: I. Prelude
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Bach, JS: Cello Suite No. 6 in D Major, BWV 1012: II. Allemande
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Bach, JS: Cello Suite No. 5 in C Minor, BWV 1011: II. Allemande
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Bach, JS: Cello Suite No. 6 in D Major, BWV 1012: III. Courante
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Bach, JS: Cello Suite No. 5 in C Minor, BWV 1011: III. Courante
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Bach, JS: Cello Suite No. 6 in D Major, BWV 1012: IV. Sarabande
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Bach, JS: Cello Suite No. 5 in C Minor, BWV 1011: IV. Sarabande
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Bach, JS: Cello Suite No. 6 in D Major, BWV 1012: V. Gavotte I
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Bach, JS: Cello Suite No. 5 in C Minor, BWV 1011: V. Gavotte I
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Bach, JS: Cello Suite No. 6 in D Major, BWV 1012: VI. Gavotte II
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Bach, JS: Cello Suite No. 5 in C Minor, BWV 1011: VI. Gavotte II
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Bach, JS: Cello Suite No. 6 in D Major, BWV 1012: VII. Gigue
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Bach, JS: Cello Suite No. 5 in C Minor, BWV 1011: VII. Gigue
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Saint-Saëns: Cello Sonata No. 1, Op. 32 & Other Pieces for Cello and Piano
Saint-Saëns: Le carnaval des animaux: XIII. Le cygne
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Mendelssohn & Schumann: Piano Trios in D Minor
Mendelssohn: Piano Trio No. 1 in D Minor, Op. 49, MWV Q29: I. Molto allegro agitato
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Mendelssohn: Piano Trio No. 1 in D Minor, Op. 49, MWV Q29: II. Andante con moto tranquillo
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Mendelssohn: Piano Trio No. 1 in D Minor, Op. 49, MWV Q29: III. Scherzo. Leggiero e vivace
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Mendelssohn: Piano Trio No. 1 in D Minor, Op. 49, MWV Q29: IV. Finale. Allegro assai appassionato
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Schumann: Cello Concerto - Bruch: Kol Nidrei - Boëllmann: Variations symphoniques
Boëllmann: Symphonic Variations for Cello and Orchestra, Op. 23: I. Moderato maestoso
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Boëllmann: Symphonic Variations for Cello and Orchestra, Op. 23: II. A tempo andantino
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Boëllmann: Symphonic Variations for Cello and Orchestra, Op. 23: III. Un peu plus vite
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Dvořák: Cello Concerto, Op. 104 & Rondo, Op. 94
Dvořák: Cello Concerto in B Minor, Op. 104, B. 191: I. Allegro
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Dvořák: Cello Concerto in B Minor, Op. 104, B. 191: III. Finale. Allegro moderato
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Dvořák: Rondo for Cello and Orchestra in G Minor, Op. 94, B. 181
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Fauré: Cello Sonatas, Élégie, Sérénade & Papillon
Chopin & Rachmaninov: Cello Sonatas in G Minor
Brahms: Double Concerto, Op. 102 - Beethoven: Violin Sonata, Op. 12 No. 1
Soirée musicale: Favourite Encores and Party Pieces
Vivaldi: Cello Sonata No. 4 in B-Flat Major, Op. 14, RV 45: I. Largo
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Debussy: Prélude à l'après-midi d'un faune, CD 87, L. 86
Debussy: Clair de lune and Other Masterpieces
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Cello Suite No. 1 in G Major, BWV 1007: I. Prelude
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Fauré: Élégie, Op. 24 (Orchestral Version)
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Sonata for Viola da Gamba in G Minor, BWV 1029: III. Allegro
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The Carnival of the Animals, R. 125: XIII. The Swan
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Tchaikovsky: Variations on a Rococo Theme for Cello and Orchestra, Op. 33: Introduction. Moderato quasi andante - Theme. Moderato semplice & Variation I. Tempo del tema
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Tchaikovsky: Variations on a Rococo Theme for Cello and Orchestra, Op. 33: Variation II. Tempo del tema
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Tchaikovsky: Variations on a Rococo Theme for Cello and Orchestra, Op. 33: Variation III. Andande sostenuto
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Tchaikovsky: Variations on a Rococo Theme for Cello and Orchestra, Op. 33: Variation V. Allegro moderato
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Tchaikovsky: Variations on a Rococo Theme for Cello and Orchestra, Op. 33: Variation VI. Andante
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