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 0xeea5025c8147b057396c04666ccc40582033d361cb6f02a597d701ac81a67ef1. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aae3d4e5-0784-41fd-8178-b178af1fd989.json and https://artists.proofprofile.net/proofs/artist/aae3d4e5-0784-41fd-8178-b178af1fd989.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bruch & Sibelius: Violin Concertos - Szymanowski: Violin Sonata
The Four Seasons, Violin Concerto No. 2 in G Minor, RV 315 "Summer": III. Allegro
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3314356d1bc426c6bfbb3773d9f450f46b8b1209953e6cdda2cb8d5b8937119e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBAYC0704554.
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24 Caprices, Op. 1: No. 1, Caprice in E Major (Andante)
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Waltzes, Op. 64: No. 1, Molto vivace in G-Flat Major "Minute Waltz"
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Prelude and Fugue No. 2 in C Minor, BWV 847
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Violin Concerto No. 2 in B Minor, Op. 7: III. Rondo "La Campanella"
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Fantaisie-impromptu in C-Sharp Minor, Op. 66
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Violin Concerto in A Minor, BWV 1041: I. Allegro moderato
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Symphony No. 40 in G Minor, K. 550: I. Molto Allegro
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Symphony No. 41 in C Major, K. 551 "Jupiter": I. Allegro vivace
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Symphony No. 6 in F Major, Op. 68 "Pastoral": I. Awakening of Cheerful Feelings on Arriving in the Country (Allegro ma non troppo)
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Piano Sonata No. 11 in A Major, K. 331: III. Rondo alla turca
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The Four Seasons, Violin Concerto No. 1 in E Major, RV 269 "Spring": I. Allegro
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Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
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Violin Concerto in D Major, Op. 61: III. Rondo (Allegro)
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Brandenburg Concerto No. 3 in G Major, BWV 1048: I. Allegro
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Keyboard Concerto in D Minor, BWV 1052: I. Allegro
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Piano Sonata No 21 in C Major, Op. 53: I. Allegro con brio (Excerpt)
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Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
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2 Concert-Studies, S. 145: II. Gnomenreigen
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Piano Concerto No. 23 in A Major, K. 488: III. Allegro assai
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Beethoven: Triple Concerto for Violin, Cello and Piano in C Major, Op. 56: I. Allegro
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Beethoven: Triple Concerto for Violin, Cello and Piano in C Major, Op. 56: II. Largo
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Brahms: Violin Concerto in D Major, Op. 77: II. Adagio (Recorded 1960)
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Brahms: Double Concerto in A Minor, Op. 102: I. Allegro (Recorded 1969)
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Brahms: Double Concerto in A Minor, Op. 102: II. Andante (Recorded 1969)
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Classical... the Best of Bach, Beethoven, Brahms, Chopin, Handel, Haydn, Mozart, Schubert, Tchaikovsky, Verdi Vol. 7
Paganini: 24 Caprices, Op. 1: No. 6 in G Minor, Lento "The Trill"
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Lalo: Symphonie espagnole - Beethoven & Sibelius: Violin Concertos
Lalo: Symphonie espagnole in D Minor, Op. 21: I. Allegro ma non troppo
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Lalo: Symphonie espagnole in D Minor, Op. 21: II. Scherzando
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Lalo: Symphonie espagnole in D Minor, Op. 21: III. Intermezzo
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Lalo: Symphonie espagnole in D Minor, Op. 21: IV. Andante
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Lalo: Symphonie espagnole in D Minor, Op. 21: V. Rondo
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Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo
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Beethoven: Violin Concerto in D Major, Op. 61: II. Larghetto
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Beethoven: Violin Concerto in D Major, Op. 61: III. Rondo. Allegro
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Sibelius: Violin Concerto in D Minor, Op. 47: I. Allegro moderato
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Sibelius: Violin Concerto in D Minor, Op. 47: II. Adagio di molto
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Sibelius: Violin Concerto in D Minor, Op. 47: III. Allegro ma non tanto
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Beethoven: Violin Concerto in D Major, Op. 61 (Mono Version)
Sibelius: Concerto pour violon, Op. 47 (Mono Version)
David Oistrakh Plays Beethoven - Works for Violin
Great Violin Concertos by Mozart, Beethoven, Bruch, Lalo, Brahms...
Mozart: Violin Concerto No. 3 in G Major, K. 216: I. Allegro (Recorded 1958)
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Mozart: Violin Concerto No. 3 in G Major, K. 216: II. Adagio (Recorded 1958)
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Mozart: Violin Concerto No. 3 in G Major, K. 216: III. Rondeau. Allegro - Andante - Allegretto (Recorded 1958)
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Bruch: Violin Concerto No. 1 in G Minor, Op. 26: I. Prelude. Allegro moderato
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Bruch: Violin Concerto No. 1 in G Minor, Op. 26: II. Adagio
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Bruch: Violin Concerto No. 1 in G Minor, Op. 26: III. Finale. Allegro energico
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Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo (Cadenza by Kreisler)
Orchestre National Radiodiffusion Française
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Brahms: Violin Concerto in D Major, Op. 77: I. Allegro non troppo (Cadenza by J. Joachim)
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Brahms: Violin Concerto in D Major, Op. 77: III. Allegro giocoso, ma non troppo vivace
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Violin Sonata No. 5 in F Major, Op. 24 "Spring": II. Adagio molto espressivo
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Concerto for Two Violins in D Minor, BWV 1043: II. Largo, ma non tanto
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Concerto for Violin, Oboe and Strings in D Minor, BWV 1060: II. Adagio
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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Music for the Royal Fireworks, HWV 351: IV. La Réjouissance
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Milestones of a Conductor Legend: Paul Kletzki, Vol. 5
Violin Concerto in E Minor, Op. 64: II. Andante
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