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genre: chamber music
genre: classical
description: Leonidas Kavakos (; born 30 October 1967) is a Greek violinist and conductor. He has won several international violin competition prizes, including the Sibelius, Paganini, Naumburg, and Indianapolis c
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  track: Piano Trio in G Minor, Op. 15: III. Finale. Presto - Live
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Piano Trio in G Minor, Op. 15: I. Moderato assai - Live
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Piano Trio in G Minor, Op. 15: II. Allegro, ma non agitato - Live
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Symphony No. 6 in F Major, Op. 68, "Pastorale": I. Allegro ma non troppo, "Awakening of cheerful feelings on arriving in the countryside"
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Symphony No. 6 in F Major, Op. 68, "Pastorale": II. Andante molto mosso, "Scene by the brook"
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  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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754650bf6a74ff6afaae123605f89fe5131d79e93227f02d287ab68a91cd5884. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USQX92204209.
  date published: 2026-07-02T03:55:08Z
audio: Symphony No. 6 in F Major, Op. 68, "Pastorale": II. Andante molto mosso, "Scene by the brook"
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Symphony No. 6 in F Major, Op. 68, "Pastorale": III. Allegro, "Joyful gathering of countryfolk"
type: MusicRecording
duration: PT4M51S
duration ms: 291573
explicit: false
by artist: Ludwig van Beethoven
by artist: Yo-Yo Ma
by artist: Emanuel Ax
by artist: Leonidas Kavakos
in album: Beethoven for Three: Symphony No. 6 "Pastorale" and Op. 1, No. 3
  type: MusicAlbum
  date published: 2022-11-11
popularity: 19
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USQX92204210
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/USQX92204210
additional property: OTSTimestamp
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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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Symphony No. 6 in F Major, Op. 68, "Pastorale": III. Allegro, "Joyful gathering of countryfolk"
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  additional property: Valence (Positivity)
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  additional property: Mode Name
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Symphony No. 6 in F Major, Op. 68, "Pastorale": IV. Allegro, "The storm"
type: MusicRecording
duration: PT3M42S
duration ms: 222920
explicit: false
by artist: Ludwig van Beethoven
by artist: Yo-Yo Ma
by artist: Emanuel Ax
by artist: Leonidas Kavakos
in album: Beethoven for Three: Symphony No. 6 "Pastorale" and Op. 1, No. 3
  type: MusicAlbum
  date published: 2022-11-11
popularity: 18
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USQX92204211
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
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09+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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32df74343a872f3884acf0fd2d06b50a2739050b964e138b2a3840db99f53a4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USQX92204211.
  date published: 2026-07-02T03:55:08Z
audio: Symphony No. 6 in F Major, Op. 68, "Pastorale": IV. Allegro, "The storm"
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  additional property: Danceability
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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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Symphony No. 6 in F Major, Op. 68, "Pastorale": V. Allegretto, "Shepherd's song. Thanksgiving after the storm"
type: MusicRecording
duration: PT9M46S
duration ms: 586813
explicit: false
by artist: Ludwig van Beethoven
by artist: Yo-Yo Ma
by artist: Emanuel Ax
by artist: Leonidas Kavakos
in album: Beethoven for Three: Symphony No. 6 "Pastorale" and Op. 1, No. 3
  type: MusicAlbum
  date published: 2022-11-11
popularity: 18
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USQX92204212
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
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX92204212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87527ca03618f5369b4526ee4c8c36bd9837fb8719b50b59119f96daa834df4d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USQX92204212.
  date published: 2026-07-02T03:30:09Z
audio: Symphony No. 6 in F Major, Op. 68, "Pastorale": V. Allegretto, "Shepherd's song. Thanksgiving after the storm"
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  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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  additional property: Valence (Positivity)
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Piano Trio No. 3 in C Minor, Op. 1, No. 3: I. Allegro con brio
type: MusicRecording
duration: PT10M1S
duration ms: 601373
explicit: false
by artist: Ludwig van Beethoven
by artist: Yo-Yo Ma
by artist: Emanuel Ax
by artist: Leonidas Kavakos
in album: Beethoven for Three: Symphony No. 6 "Pastorale" and Op. 1, No. 3
  type: MusicAlbum
  date published: 2022-11-11
popularity: 18
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USQX92204214
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
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX92204214
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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Piano Trio No. 3 in C Minor, Op. 1, No. 3: I. Allegro con brio
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  additional property: Mode (Major/Minor)
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  additional property: Valence (Positivity)
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Piano Trio No. 3 in C Minor, Op. 1, No. 3: II. Andante cantabile con variazioni
type: MusicRecording
duration: PT7M38S
duration ms: 458586
explicit: false
by artist: Ludwig van Beethoven
by artist: Yo-Yo Ma
by artist: Emanuel Ax
by artist: Leonidas Kavakos
in album: Beethoven for Three: Symphony No. 6 "Pastorale" and Op. 1, No. 3
  type: MusicAlbum
  date published: 2022-11-11
popularity: 20
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USQX92204215
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: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-02T03:55:08Z
audio: Piano Trio No. 3 in C Minor, Op. 1, No. 3: II. Andante cantabile con variazioni
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Piano Trio No. 3 in C Minor, Op. 1, No. 3: III. Menuetto. Quasi allegro
type: MusicRecording
duration: PT3M39S
duration ms: 219280
explicit: false
by artist: Ludwig van Beethoven
by artist: Yo-Yo Ma
by artist: Emanuel Ax
by artist: Leonidas Kavakos
in album: Beethoven for Three: Symphony No. 6 "Pastorale" and Op. 1, No. 3
  type: MusicAlbum
  date published: 2022-11-11
popularity: 16
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USQX92204216
additional property: CopyrightID
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  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
additional property: ProofProfileEvidenceStatus
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  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b5ec8d045cb7205956f6faffb0ae315b37669aaf53fddb5bdd17064bd54d05. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USQX92204216.
  date published: 2026-07-02T03:55:08Z
audio: Piano Trio No. 3 in C Minor, Op. 1, No. 3: III. Menuetto. Quasi allegro
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  additional property: Valence (Positivity)
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Piano Trio No. 3 in C Minor, Op. 1, No. 3: IV. Finale. Prestissimo
type: MusicRecording
duration: PT8M34S
duration ms: 514586
explicit: false
by artist: Ludwig van Beethoven
by artist: Yo-Yo Ma
by artist: Emanuel Ax
by artist: Leonidas Kavakos
in album: Beethoven for Three: Symphony No. 6 "Pastorale" and Op. 1, No. 3
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  date published: 2022-11-11
popularity: 16
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USQX92204217
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
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additional property: OTSTimestamp
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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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Piano Trio No. 3 in C Minor, Op. 1, No. 3: IV. Finale. Prestissimo
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  additional property: Mode Name
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Piano Trio No. 2 in C Major, Op. 87: Allegro
type: MusicRecording
duration: PT9M50S
duration ms: 590560
explicit: false
by artist: Johannes Brahms
by artist: Yo-Yo Ma
by artist: Emanuel Ax
by artist: Leonidas Kavakos
in album: Brahms: The Piano Trios
  type: MusicAlbum
  date published: 2017-09-15
popularity: 17
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: USQX91701471
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
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX91701471
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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa2d7bbcc54aee224d3ef40ba02a5ee31a05fb4f164591390dd9f88a7dcb95c. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USQX91701471.
  date published: 2026-06-17T19:07:14Z
audio: Piano Trio No. 2 in C Major, Op. 87: Allegro
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  additional property: Mode Name
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Piano Trio No. 3 in C Minor, Op. 101: Allegro energico
type: MusicRecording
duration: PT7M28S
duration ms: 448226
explicit: false
by artist: Johannes Brahms
by artist: Yo-Yo Ma
by artist: Emanuel Ax
by artist: Leonidas Kavakos
in album: Brahms: The Piano Trios
  type: MusicAlbum
  date published: 2017-09-15
popularity: 13
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: USQX91701476
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/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX91701476
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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0036211ae06668b981ea12ee4b81292f2104c0332bd97fbadd29218ab6b916. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USQX91701476.
  date published: 2026-07-02T03:55:08Z
audio: Piano Trio No. 3 in C Minor, Op. 101: Allegro energico
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Piano Trio No. 2 in C Major, Op. 87: Andante con moto
type: MusicRecording
duration: PT8M3S
duration ms: 483853
explicit: false
by artist: Johannes Brahms
by artist: Yo-Yo Ma
by artist: Emanuel Ax
by artist: Leonidas Kavakos
in album: Brahms: The Piano Trios
  type: MusicAlbum
  date published: 2017-09-15
popularity: 13
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: USQX91701472
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
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additional property: OTSTimestamp
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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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Piano Trio No. 2 in C Major, Op. 87: Andante con moto
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Piano Trio No. 3 in C Minor, Op. 101: Presto non assai
type: MusicRecording
duration: PT3M51S
duration ms: 231826
explicit: false
by artist: Johannes Brahms
by artist: Yo-Yo Ma
by artist: Emanuel Ax
by artist: Leonidas Kavakos
in album: Brahms: The Piano Trios
  type: MusicAlbum
  date published: 2017-09-15
popularity: 12
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: USQX91701477
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
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Piano Trio No. 3 in C Minor, Op. 101: Presto non assai
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Piano Trio No. 2 in C Major, Op. 87: Scherzo: Presto
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duration: PT4M48S
duration ms: 288106
explicit: false
by artist: Johannes Brahms
by artist: Yo-Yo Ma
by artist: Emanuel Ax
by artist: Leonidas Kavakos
in album: Brahms: The Piano Trios
  type: MusicAlbum
  date published: 2017-09-15
popularity: 13
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: USQX91701473
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
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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Piano Trio No. 3 in C Minor, Op. 101: Andante grazioso
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duration: PT4M5S
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by artist: Yo-Yo Ma
by artist: Emanuel Ax
by artist: Leonidas Kavakos
in album: Brahms: The Piano Trios
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popularity: 18
genre: classical
genre: german-romanticism
genre: late-romantic-era
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additional property: OTSVerifyInstructions
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  date published: 2026-06-13T17:25:41Z
audio: Piano Trio No. 3 in C Minor, Op. 101: Andante grazioso
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Piano Trio No. 2 in C Major, Op. 87: Finale: Allegro giocoso
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by artist: Johannes Brahms
by artist: Yo-Yo Ma
by artist: Emanuel Ax
by artist: Leonidas Kavakos
in album: Brahms: The Piano Trios
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genre: classical
genre: german-romanticism
genre: late-romantic-era
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additional property: OTSVerifyInstructions
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  date published: 2026-07-02T03:55:08Z
audio: Piano Trio No. 2 in C Major, Op. 87: Finale: Allegro giocoso
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Piano Trio No. 3 in C Minor, Op. 101: Allegro molto
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duration: PT5M38S
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explicit: false
by artist: Johannes Brahms
by artist: Yo-Yo Ma
by artist: Emanuel Ax
by artist: Leonidas Kavakos
in album: Brahms: The Piano Trios
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popularity: 11
genre: classical
genre: german-romanticism
genre: late-romantic-era
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  date published: 2026-07-02T03:55:08Z
audio: Piano Trio No. 3 in C Minor, Op. 101: Allegro molto
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Piano Trio No. 1 in B Major, Op. 8: Allegro con brio
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by artist: Yo-Yo Ma
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by artist: Leonidas Kavakos
in album: Brahms: The Piano Trios
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popularity: 18
genre: classical
genre: german-romanticism
genre: late-romantic-era
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  date published: 2026-06-13T15:41:10Z
audio: Piano Trio No. 1 in B Major, Op. 8: Allegro con brio
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Piano Trio No. 1 in B Major, Op. 8: Scherzo: Allegro molto
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duration: PT6M31S
duration ms: 391066
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by artist: Yo-Yo Ma
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by artist: Leonidas Kavakos
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popularity: 15
genre: classical
genre: german-romanticism
genre: late-romantic-era
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additional property: OTSVerifyInstructions
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  date published: 2026-07-02T03:30:09Z
audio: Piano Trio No. 1 in B Major, Op. 8: Scherzo: Allegro molto
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Piano Trio No. 1 in B Major, Op. 8: Adagio
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popularity: 15
genre: classical
genre: german-romanticism
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additional property: OTSVerifyInstructions
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  date published: 2026-07-02T03:30:09Z
audio: Piano Trio No. 1 in B Major, Op. 8: Adagio
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Piano Trio No. 1 in B Major, Op. 8: Finale: Allegro
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Violin Concerto in D Minor, Op. 47 (1903-1904 Version): I. Allegro moderato
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Violin Concerto in D Minor, Op. 47 (1905 Version): III. Allegro ma non tanto
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Violin Concerto in D Minor, Op. 47 (1903-1904 Version): II. Adagio di molto
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Violin Concerto in D Minor, Op. 47 (1903-1904 Version): III. Allegro ma non tanto
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Violin Concerto in D Minor, Op. 47 (1905 Version): I. Allegro moderato
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Wiegenlied, Op. 49, No. 4
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Beethoven for Three: Symphony No. 6 "Pastorale" and Op. 1, No. 3
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track: Symphony No. 6 in F Major, Op. 68, "Pastorale": III. Allegro, "Joyful gathering of countryfolk"
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track: Symphony No. 6 in F Major, Op. 68, "Pastorale": V. Allegretto, "Shepherd's song. Thanksgiving after the storm"
track: Piano Trio No. 3 in C Minor, Op. 1, No. 3: I. Allegro con brio
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Brahms: The Piano Trios
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track: Piano Trio No. 1 in B Major, Op. 8: Allegro con brio
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Mansurian: Monodia
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Sibelius: Violin Concerto in D Minor, Op. 47 (Original Version and Final Version)
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Brahms: The Violin Sonatas
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track: Wiegenlied, Op. 49, No. 4