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genre: chamber music
genre: classical
description: Isabelle Faust (born 19 March 1972) is a German violinist who has worked internationally as a soloist and chamber musician. She has received multiple awards. Life and career Faust was born in Essli
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Piano Quartet in E-Flat Major, Op. 47: I. Sostenuto assai - Allegro ma non troppo
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Piano Quartet in E-Flat Major, Op. 47: II. Scherzo. Molto vivace
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Piano Quartet in E-Flat Major, Op. 47: III. Andante cantabile
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Piano Quartet in E-Flat Major, Op. 47: IV. Finale. Vivace
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Piano Quintet in E-Flat Major, Op. 44: I. Allegro brillante
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Piano Quintet in E-Flat Major, Op. 44: II. In modo d'una Marcia. Un poco largamente
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Piano Quintet in E-Flat Major, Op. 44: III. Scherzo. Molto vivace
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Piano Quintet in E-Flat Major, Op. 44: IV. Allegro ma non troppo
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Brandenburg Concerto No. 4 in G Major, BWV 1049: III. Presto
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Brandenburg Concerto No. 3 in G Major, BWV 1048: III. Allegro
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Brandenburg Concerto No. 4 in G Major, BWV 1049: I. Allegro
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Violin Concerto in E Minor, Op. 64: I. Allegro molto appassionato
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Violin Concerto in D minor, WoO 23: I. In kräftigem, nicht zu schnellem Tempo
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Violin Concerto in D minor, WoO 23: II. Langsam
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Violin Concerto in D minor, WoO 23: III. Lebhaft, doch nicht schnell
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Violin Concerto, Op. 15: I. Moderato con moto – Agitato – Tempo primo - Live
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Fantasia for Solo Violin in A Minor "Alia Fantasia"
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Concerto Grosso in C Minor, Op. 1 No. 11: I. Largo
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Concerto Grosso in C Minor, Op. 1 No. 11: II. Allemanda. Allegro
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Concerto Grosso in C Minor, Op. 1 No. 11: IV. Giga. Allegro
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Concerto Grosso in C Minor, Op. 1 No. 11: III. Sarabanda. Largo
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Violin Concerto in A Major, Op. 3 No. 11: I. Allegro
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Concerto Grosso in E-Flat Major, Op. 7 No. 6 "Il Pianto d'Arianna": I. Andante - Allegro - Adagio - Andante - Allegro
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Violin Sonata in A Major, FWV 8: I. Allegro ben moderato
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Violin Sonata in A Major, FWV 8: II. Allegro
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Violin Sonata in A Major, FWV 8: IV. Allegro poco mosso
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Violin Concerto No. 3 in G major, K. 216: I. Allegro
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Violin Concerto No. 1 in B-Flat Major, K. 207: I. Allegro moderato
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Piano Trio No. 7 in B-Flat Major "Archduke", Op. 97: II. Scherzo - Allegro
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Violin Concerto No.1, Sz 36, Op. posth.: I. Andante sostenuto
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Violin Concerto No. 2, Sz. 112: I. Allegro non troppo (excerpt)
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Violin Concerto No. 2, Sz. 112: II. Andante tranquillo
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Violin Sonata No. 1 in G Minor, BWV 1001: I. Adagio
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Violin Sonata No. 1 in G Minor, BWV 1001: II. Fuga - Allegro
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Partita No. 1 in B Minor, BWV 1002: I. Allemanda
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Brandenburg Concerto No. 5 in D Major, BWV 1050: I. Allegro
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Brandenburg Concerto No. 5 in D Major, BWV 1050: II. Affettuoso
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subject of: OpenTimestamps Proof of Existence
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audio: Brandenburg Concerto No. 5 in D Major, BWV 1050: II. Affettuoso
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Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:53:57Z
audio: Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante
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Brandenburg Concerto No. 2 in F Major, BWV 1047: III. Allegro assai
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:53:57Z
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Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: I. [Ohne Satzbezeichnung]
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T14:04:01Z
audio: Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: I. [Ohne Satzbezeichnung]
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Brandenburg Concerto No. 3 in G Major, BWV 1048: I. [Ohne Satzbezeichnung]
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audio: Brandenburg Concerto No. 3 in G Major, BWV 1048: I. [Ohne Satzbezeichnung]
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Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: III. Allegro
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audio: Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: III. Allegro
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Debussy: Les Trois Sonates, The Late Works
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track: Sonata for Flute, Viola and Harp in F Major, L. 137: II. Interlude. Tempo di minuetto
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track: Cello Sonata in D Minor, L. 135: II. Sérénade. Modérément animé. Fantasque et léger
track: Cello Sonata in D Minor, L. 135: III. Finale. Animé. Léger et nerveux
track: Les Soirs illuminés par l'ardeur du charbon in A-flat major, CD. 150: Pour piano. Lent et rêveur

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OpenTimestamps Proof of Existence
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Cello Sonata in D Minor, L. 135: I. Prologue. Lent. Sostenuto e molto risoluto
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Cello Sonata in D Minor, L. 135: II. Sérénade. Modérément animé. Fantasque et léger
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
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track: Octet in C Major, Op. 7: I. Très modéré - Live
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Octet in C Major, Op. 7: I. Très modéré - Live
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Octet in C Major, Op. 7: II. Très fougueux - Live
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Octet in C Major, Op. 7: III. Lentement - Live
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Octet in C Major, Op. 7: IV. Mouvement de valse bien rythmée - Live
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Trio for piano, violin and cello after the Symphony No. 2 in D Major, Op. 36: II. Larghetto quasi andante
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Trio for piano, violin and cello after the Symphony No. 2 in D Major, Op. 36: IV. Allegro molto
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Sonata for Solo Violin in A Minor: IV. Variations
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Locatelli: il virtuoso, il poeta (Violin Concertos & Concerti Grossi)
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Concerto Grosso in E-Flat Major, Op. 7 No. 6 "Il Pianto d'Arianna": II. Largo
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György Kurtág: Kafka-Fragmente
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Magnificat in D Major, BWV 243: III. Quia respexit humilitatem
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Brandenburg Concerto No. 3 in G Major, BWV 1048: I. [Ohne Satzbezeichnung]
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Mozart: Sonatas for Fortepiano & Violin, Vol. 3
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Beethoven: Violin Sonata No. 9 "Kreutzer"
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Schoenberg: Violin Concerto - Verklärte Nacht
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value: https://blockstream.info/api/block-height/957120

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM1607050

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:22:41Z

OTSVerifyInstructions
type: PropertyValue
value: 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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc937b0f899bc5c5e3061101e8c10ec648ead5860dc1ef56a29802ae199c73bcd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR7JM1607050.
date published: 2026-07-08T03:22:41Z

Adagio in E Major, K. 261
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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  value: 5
additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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  value: 0.056
additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
  type: PropertyValue
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Violin Concerto No. 5 in A major, K. 219: II. Adagio
type: MusicRecording
duration: PT8M50S
duration ms: 530053
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Isabelle Faust
by artist: Il Giardino Armonico
by artist: Giovanni Antonini
in album: Mozart: Violin Concertos Nos. 1-5; 2 Rondos
  type: MusicAlbum
  date published: 2016-10-28
genre: classical
genre: classical-era
isrc code: FR7JM1607070
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM1607070
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122fd3e3687bb4f627a1321f70374695b512d92ee1e78ab8a08cc58343623ebf. 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/FR7JM1607070.
  date published: 2026-07-07T18:39:05Z
audio: Violin Concerto No. 5 in A major, K. 219: II. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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Violin Concerto No. 5 in A major, K. 219: III. Rondeau (Tempo di Menuetto - Allegro - Tempo di Menuetto)
type: MusicRecording
duration: PT8M7S
duration ms: 487600
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Isabelle Faust
by artist: Il Giardino Armonico
by artist: Giovanni Antonini
in album: Mozart: Violin Concertos Nos. 1-5; 2 Rondos
  type: MusicAlbum
  date published: 2016-10-28
genre: classical
genre: classical-era
isrc code: FR7JM1607080
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T05:32:16+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xd11ce3fe961783148d313f3d3fe994878c6abc24c0b8cfface413dfe47f3cfe9
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM1607080
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11ce3fe961783148d313f3d3fe994878c6abc24c0b8cfface413dfe47f3cfe9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR7JM1607080.
  date published: 2026-07-06T06:56:49Z
audio: Violin Concerto No. 5 in A major, K. 219: III. Rondeau (Tempo di Menuetto - Allegro - Tempo di Menuetto)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.783
  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Bach: Violin Sonatas Nos. 1-6
type: MusicAlbum
date published: 2016
track: Violin Sonata No. 1 in B Minor, BWV 1014: I. Adagio
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  duration: PT3M10S
  duration ms: 190320
  explicit: false
  by artist: Johann Sebastian Bach
  by artist: Isabelle Faust
  by artist: Kristian Bezuidenhout
  in album: Bach: Violin Sonatas Nos. 1-6
    type: MusicAlbum
    date published: 2016
  genre: classical
  genre: classical-piano
  isrc code: FR7JM1623010
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T21:10:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x46d1bf638632566750ee8cab8a971701c454096eabdaa9907fd5b28a6d97ecc4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM1623010
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d1bf638632566750ee8cab8a971701c454096eabdaa9907fd5b28a6d97ecc4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR7JM1623010.
    date published: 2026-07-08T03:20:19Z
  audio: Violin Sonata No. 1 in B Minor, BWV 1014: I. Adagio
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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track: Violin Sonata No. 4 in C Minor, BWV 1017: I. Largo
  type: MusicRecording
  duration: PT4M1S
  duration ms: 241240
  explicit: false
  by artist: Johann Sebastian Bach
  by artist: Isabelle Faust
  by artist: Kristian Bezuidenhout
  in album: Bach: Violin Sonatas Nos. 1-6
    type: MusicAlbum
    date published: 2016
  genre: classical
  genre: classical-piano
  isrc code: FR7JM1624010
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM1624010
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e3e5418b17ff9e1f720fd8b7a48c3ab40da7f333645eef00e3442f3e18a22e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR7JM1624010.
    date published: 2026-07-02T05:09:12Z
  audio: Violin Sonata No. 4 in C Minor, BWV 1017: I. Largo
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
      type: PropertyValue
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    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
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track: Violin Sonata No. 4 in C Minor, BWV 1017: II. Allegro
  type: MusicRecording
  duration: PT4M47S
  duration ms: 287000
  explicit: false
  by artist: Johann Sebastian Bach
  by artist: Isabelle Faust
  by artist: Kristian Bezuidenhout
  in album: Bach: Violin Sonatas Nos. 1-6
    type: MusicAlbum
    date published: 2016
  genre: classical
  genre: classical-piano
  isrc code: FR7JM1624020
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Violin Sonata No. 4 in C Minor, BWV 1017: II. Allegro
track: Violin Sonata No. 1 in B Minor, BWV 1014: III. Andante
track: Violin Sonata No. 1 in B Minor, BWV 1014: IV. (Allegro)
track: Violin Sonata No. 5 in F Minor, BWV 1018: I. [Largo]
track: Violin Sonata No. 3 in E Major, BWV 1016: I. Adagio
track: Violin Sonata No. 6 in G Major, BWV 1019: I. Allegro
track: Violin Sonata No. 3 in E Major, BWV 1016: III. Adagio ma non tanto
track: Violin Sonata No. 6 in G Major, BWV 1019: III. (Allegro)

CopyrightChainExplorerURL
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OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM1624020

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

OTSVerifyInstructions
type: PropertyValue
value: 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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1a0a7bb5ed0d88f6312a9221adb0524f49e814d7f4dd5d4f93c91aafcabafa. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR7JM1624020.
date published: 2026-07-08T03:20:19Z

Violin Sonata No. 4 in C Minor, BWV 1017: II. Allegro
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
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additional property: Musical Key
  type: PropertyValue
  value: 11
additional property: Mode (Major/Minor)
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additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.331
additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Violin Sonata No. 1 in B Minor, BWV 1014: III. Andante
type: MusicRecording
duration: PT2M50S
duration ms: 170440
explicit: false
by artist: Johann Sebastian Bach
by artist: Isabelle Faust
by artist: Kristian Bezuidenhout
in album: Bach: Violin Sonatas Nos. 1-6
  type: MusicAlbum
  date published: 2016
genre: classical
genre: classical-piano
isrc code: FR7JM1623030
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM1623030
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20cf8b2b5974478bcc36d87f680cf7517a37db9ad1a07c84afeb259cdb5a2f3a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR7JM1623030.
  date published: 2026-07-08T03:20:19Z
audio: Violin Sonata No. 1 in B Minor, BWV 1014: III. Andante
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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Violin Sonata No. 1 in B Minor, BWV 1014: IV. (Allegro)
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by artist: Kristian Bezuidenhout
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
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Violin Sonata No. 5 in F Minor, BWV 1018: I. [Largo]
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Violin Sonata No. 5 in F Minor, BWV 1018: I. [Largo]
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Violin Sonata No. 3 in E Major, BWV 1016: I. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Violin Sonata No. 3 in E Major, BWV 1016: I. Adagio
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Violin Sonata No. 6 in G Major, BWV 1019: I. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Violin Sonata No. 6 in G Major, BWV 1019: I. Allegro
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Violin Sonata No. 3 in E Major, BWV 1016: III. Adagio ma non tanto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Violin Sonata No. 3 in E Major, BWV 1016: III. Adagio ma non tanto
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Violin Sonata No. 6 in G Major, BWV 1019: III. (Allegro)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Violin Sonata No. 6 in G Major, BWV 1019: III. (Allegro)
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Brahms: Violin Sonatas Nos. 2 & 3 / Schumann: 3 Romances / F-A-E Sonata
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    date published: 2026-07-08T03:22:41Z
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In aller Stille
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Hindemith: Sonatas for…
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Lancino: Violin Concerto & Prelude and Death of Virgil
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track: Piano Trio No. 7 in B-Flat Major "Archduke", Op. 97: II. Scherzo - Allegro
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Bartók: Violin Concertos No. 1 & 2
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Simply Bach Violin Concertos (Famous Classical Music)
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Simply Bach Reconstructed Violin Concertos (Famous Classical Music)
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Weber: Sonatas for piano & violin - Piano Quartet
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Sonata Op.10 No.4 in E Flat Major: II. Rondo - Vivace
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Johann Sebastian Bach: Violin Concertos BWV1041-1043 (Classical Masterpieces)
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Brahms: Complete Piano Quartets
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-07T12:58:18Z
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track: Partita No. 1 in B Minor, BWV 1002: VII. Tempo di Bourrée
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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

Partita No. 1 in B Minor, BWV 1002: II. Double
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Partita No. 1 in B Minor, BWV 1002: V. Sarabande
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Partita No. 1 in B Minor, BWV 1002: VII. Tempo di Bourrée
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
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