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album: J.S. Bach, Bartók & Boulez: Works for Solo Violin
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  date published: 2017-02-03
album: Britten & Elgar: Sea Interludes, Violin Concerto
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  date published: 2023-09-08
track: Piano Trio No. 1 in E Flat Major, Op. 1 No. 1: I. Allegro
track: Piano Trio No. 1 in E Flat Major, Op. 1 No. 1: II. Adagio cantabile
track: Piano Trio No. 1 in E Flat Major, Op. 1 No. 1: III. Scherzo. Allegro assai
track: Piano Trio No. 1 in E Flat Major, Op. 1 No. 1: IV. Finale. Presto
track: Piano Trio No. 3 in C Minor, Op. 1 No. 3: I. Allegro con brio
track: Piano Trio No. 3 in C Minor, Op. 1 No. 3: II. Andante cantabile con variazioni
track: Piano Trio No. 7 in B Flat Major, Op. 97 "Archduke": I. Allegro moderato
track: Piano Trio No. 7 in B Flat Major, Op. 97 "Archduke": II. Scherzo. Allegro
track: Piano Trio No. 7 in B Flat Major, Op. 97 "Archduke": III. Andante cantabile, ma però con moto - Poco più adagio
track: Piano Trio No. 7 in B Flat Major, Op. 97 "Archduke": IV. Allegro moderato
track: Piano Trio No. 5 in D Major, Op. 70 No. 1 "Geistertrio": I. Allegro vivace e con brio
track: Piano Trio No. 2 in G Major, Op. 1 No. 2: II. Largo con espressione
track: Violin Sonata in G Minor, L. 140: I. Allegro vivo
track: Violin Sonata in G Minor, L. 140: II. Intermède. Fantasque et léger
track: Violin Sonata in G Minor, L. 140: III. Finale. Très animé
track: Piano Trio No. 2 in G Major, Op. 1 No. 2: I. Adagio - Allegro vivace
track: Piano Trio No. 2 in G Major, Op. 1 No. 2: III. Scherzo. Allegro
track: Piano Trio No. 2 in G Major, Op. 1 No. 2: IV. Finale. Presto
track: Piano Trio No. 3 in C Minor, Op. 1 No. 3: III. Menuetto. Quasi allegro
track: Piano Trio No. 3 in C Minor, Op. 1 No. 3: IV. Finale. Prestissimo

Piano Trio No. 1 in E Flat Major, Op. 1 No. 1: I. Allegro
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Piano Trio No. 1 in E Flat Major, Op. 1 No. 1: II. Adagio cantabile
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  date published: 2026-07-02T03:55:08Z
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Piano Trio No. 1 in E Flat Major, Op. 1 No. 1: III. Scherzo. Allegro assai
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Piano Trio No. 1 in E Flat Major, Op. 1 No. 1: IV. Finale. Presto
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Piano Trio No. 3 in C Minor, Op. 1 No. 3: I. Allegro con brio
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Piano Trio No. 3 in C Minor, Op. 1 No. 3: II. Andante cantabile con variazioni
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additional property: OTSVerifyInstructions
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Piano Trio No. 7 in B Flat Major, Op. 97 "Archduke": I. Allegro moderato
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by artist: Michael Barenboim
by artist: Kian Soltani
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genre: classical
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  date published: 2026-07-02T11:38:34Z
audio: Piano Trio No. 7 in B Flat Major, Op. 97 "Archduke": I. Allegro moderato
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Piano Trio No. 7 in B Flat Major, Op. 97 "Archduke": II. Scherzo. Allegro
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additional property: OTSVerifyInstructions
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  date published: 2026-07-13T07:54:01Z
audio: Piano Trio No. 7 in B Flat Major, Op. 97 "Archduke": II. Scherzo. Allegro
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Piano Trio No. 7 in B Flat Major, Op. 97 "Archduke": III. Andante cantabile, ma però con moto - Poco più adagio
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genre: classical
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additional property: OTSVerifyInstructions
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  date published: 2026-07-02T05:09:12Z
audio: Piano Trio No. 7 in B Flat Major, Op. 97 "Archduke": III. Andante cantabile, ma però con moto - Poco più adagio
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Piano Trio No. 7 in B Flat Major, Op. 97 "Archduke": IV. Allegro moderato
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genre: classical
genre: classical-piano
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  date published: 2026-07-07T14:18:56Z
audio: Piano Trio No. 7 in B Flat Major, Op. 97 "Archduke": IV. Allegro moderato
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Piano Trio No. 5 in D Major, Op. 70 No. 1 "Geistertrio": I. Allegro vivace e con brio
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genre: classical
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  date published: 2026-07-21T17:01:54Z
audio: Piano Trio No. 5 in D Major, Op. 70 No. 1 "Geistertrio": I. Allegro vivace e con brio
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Piano Trio No. 2 in G Major, Op. 1 No. 2: II. Largo con espressione
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  date published: 2026-07-22T19:45:25Z
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Violin Sonata in G Minor, L. 140: I. Allegro vivo
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Violin Sonata in G Minor, L. 140: II. Intermède. Fantasque et léger
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Violin Sonata in G Minor, L. 140: III. Finale. Très animé
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Piano Trio No. 2 in G Major, Op. 1 No. 2: I. Adagio - Allegro vivace
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audio: Piano Trio No. 2 in G Major, Op. 1 No. 2: I. Adagio - Allegro vivace
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Piano Trio No. 2 in G Major, Op. 1 No. 2: III. Scherzo. Allegro
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Piano Trio No. 2 in G Major, Op. 1 No. 2: IV. Finale. Presto
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961904134
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960111
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960111
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T13:21:01+00:00
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 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

Piano Trio No. 3 in C Minor, Op. 1 No. 3: III. Menuetto. Quasi allegro
type: MusicRecording
duration: PT3M59S
duration ms: 239213
explicit: false
by artist: Ludwig van Beethoven
by artist: Daniel Barenboim
by artist: Michael Barenboim
by artist: Kian Soltani
in album: Beethoven Trios
  type: MusicAlbum
  date published: 2020-11-27
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ff75b7465f9b4b450af1643029c3f7f427da333c202ab2159c1ab1d2cac69e. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/DEN961904143.
  date published: 2026-07-29T23:42:34Z
audio: Piano Trio No. 3 in C Minor, Op. 1 No. 3: III. Menuetto. Quasi allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 156.16
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.391
  additional property: Energy
    type: PropertyValue
    value: 0.032
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.508
  additional property: Liveness
    type: PropertyValue
    value: 0.134
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.248
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.254
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: DEN961904143
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960167
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T23:42:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961904143
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960167
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960167
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T23:42:34+00:00
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 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

Piano Trio No. 3 in C Minor, Op. 1 No. 3: IV. Finale. Prestissimo
type: MusicRecording
duration: PT6M53S
duration ms: 413893
explicit: false
by artist: Ludwig van Beethoven
by artist: Daniel Barenboim
by artist: Michael Barenboim
by artist: Kian Soltani
in album: Beethoven Trios
  type: MusicAlbum
  date published: 2020-11-27
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c93f7992c3a39e7ee71698ee67d4941c30fccd3a45d6a318654314a87d5da96. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/DEN961904144.
  date published: 2026-07-29T13:09:35Z
audio: Piano Trio No. 3 in C Minor, Op. 1 No. 3: IV. Finale. Prestissimo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.4
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.348
  additional property: Energy
    type: PropertyValue
    value: 0.054
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.447
  additional property: Liveness
    type: PropertyValue
    value: 0.207
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.237
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.523
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: DEN961904144
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960108
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T13:09:35+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961904144
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960108
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960108
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T13:09:35+00:00
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 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