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track: Anthèmes II for Violin and Live Electronics: Lent – /I. Libre
track: Concerto pour violon et orchestre: II. Aria - Hoquetus - Choral: Andante con moto
track: Concerto pour violon et orchestre: V. Appassionato: Agitato molto
track: Anthèmes II for Violin and Live Electronics: I. Très lent, avec beaucoup de flexibilité – I/II. Libre
track: Anthèmes II for Violin and Live Electronics: II. Rapide, dynamique, très rythmique, rigide – II/III. Libre
track: Concerto pour violon et orchestre: I. Praeludium: Vivacissimo luminoso
track: Concerto pour violon et orchestre: III. Intermezzo: Presto fluido
track: Concerto pour violon et orchestre: IV. Passacaglia: Lento intenso

Anthèmes II for Violin and Live Electronics: Lent – /I. Libre
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  date published: 2026-07-08T03:53:27Z
audio: Anthèmes II for Violin and Live Electronics: Lent – /I. Libre
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Concerto pour violon et orchestre: II. Aria - Hoquetus - Choral: Andante con moto
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  date published: 2026-07-08T03:22:41Z
audio: Concerto pour violon et orchestre: II. Aria - Hoquetus - Choral: Andante con moto
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Concerto pour violon et orchestre: V. Appassionato: Agitato molto
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audio: Concerto pour violon et orchestre: V. Appassionato: Agitato molto
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Anthèmes II for Violin and Live Electronics: I. Très lent, avec beaucoup de flexibilité – I/II. Libre
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by artist: Andrew Gerzso
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  date published: 2026-07-31T15:20:15Z
audio: Anthèmes II for Violin and Live Electronics: I. Très lent, avec beaucoup de flexibilité – I/II. Libre
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Anthèmes II for Violin and Live Electronics: II. Rapide, dynamique, très rythmique, rigide – II/III. Libre
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Concerto pour violon et orchestre: I. Praeludium: Vivacissimo luminoso
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    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
    value: 0.408
  additional property: Energy
    type: PropertyValue
    value: 0.183
  additional property: Speechiness
    type: PropertyValue
    value: 0.08
  additional property: Acousticness
    type: PropertyValue
    value: 0.925
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.307
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.529
  additional property: Key Name
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isrc code: FR50X2399301
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2399301
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960183
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T01:10:20+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

Concerto pour violon et orchestre: III. Intermezzo: Presto fluido
type: MusicRecording
duration: PT2M16S
duration ms: 136066
explicit: false
by artist: György Ligeti
by artist: Ensemble Intercontemporain
by artist: Pierre Bleuse
by artist: Hae-Sun Kang
in album: Ligeti
  type: MusicAlbum
  date published: 2024-03-22
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693a06c3843d67df1dda3d19d70b17c23bdf822c4db7d0f980a3ebee19619d8d. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/FR50X2399303.
  date published: 2026-07-29T11:07:37Z
audio: Concerto pour violon et orchestre: III. Intermezzo: Presto fluido
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 81.139
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.161
  additional property: Energy
    type: PropertyValue
    value: 0.151
  additional property: Speechiness
    type: PropertyValue
    value: 0.062
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.329
  additional property: Liveness
    type: PropertyValue
    value: 0.739
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.113
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.616
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: FR50X2399303
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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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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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2399303
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960095
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960095
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T11:07:37+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

Concerto pour violon et orchestre: IV. Passacaglia: Lento intenso
type: MusicRecording
duration: PT6M19S
duration ms: 379586
explicit: false
by artist: György Ligeti
by artist: Ensemble Intercontemporain
by artist: Pierre Bleuse
by artist: Hae-Sun Kang
in album: Ligeti
  type: MusicAlbum
  date published: 2024-03-22
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc995f41ab8c76b81d914038ab6c27899ad7c4ad5177af15ef8cdc90ed88c3a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FR50X2399304.
  date published: 2026-07-31T08:26:41Z
audio: Concerto pour violon et orchestre: IV. Passacaglia: Lento intenso
  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)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.072
  additional property: Energy
    type: PropertyValue
    value: 0.042
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.829
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.536
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.029
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.312
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: FR50X2399304
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960368
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T08:26:41+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2399304
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41+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