François-René Duchâble
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genre: classical piano
description: thumb| François-René Duchâble (born 22 April 1952, in Paris) is a French pianist. He studied at the Conservatoire de Paris, and at the age of 13 won the institution's first prize in piano. Three year
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album: François-René Duchâble Plays Chopin
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Chopin: 3 Polonaises, Op. Posth. 71: No. 3 in F Minor
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Sicilienne in G Minor, BWV 1031
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Chopin: Grand Duo concertant sur des thèmes de Robert le Diable: IV. Andante cantabile
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Chopin: Cello Sonata in G Minor, Op. 65: III. Largo
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Machuel: Or, les murs (Beyond the Wall)
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Beethoven: Piano Concertos, Op. 19 & 61a
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Liszt: Études d'exécution transcendante & Légendes
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Chopin: Polonaises
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Bach - Beethoven - Scarlatti - Mozart
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Le cor romantique
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Brahms : Clarinet Sonatas & Weber : Grand duo concertant
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2d9b82c0f8020db4b06115db409f9084b5f2ccb061e7ebeb542a64cf0fe38f5e
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  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 1, Andante
track: Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 2, Allegro con moto
track: Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 3, Andante con moto
track: Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 4, Allegro agitato
track: Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 5, Andante
track: Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 6, Andante con moto
track: Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 7, Allegro vivace, ma non troppo
track: Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 8, Moderato
track: Bruch: Romanze, Op. 85

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957073

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957073

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208906701

OTSTimestamp
type: PropertyValue
value: 2026-07-07T18:39:05Z

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 0x2d9b82c0f8020db4b06115db409f9084b5f2ccb061e7ebeb542a64cf0fe38f5e. 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/FRZ208906701.
date published: 2026-07-07T18:39:05Z

Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 1, Andante
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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  value: 0.123
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.054
additional property: Loudness (dB)
  type: PropertyValue
  value: -27.498
additional property: Key Name
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  value: A
additional property: Mode Name
  type: PropertyValue
  value: Minor

Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 2, Allegro con moto
type: MusicRecording
duration: PT2M26S
duration ms: 146106
explicit: false
by artist: Max Bruch
by artist: François-René Duchâble
by artist: Gérard Caussé
by artist: Paul Meyer
in album: Bruch: Concerto for Clarinet and Viola, 8 Pieces for Clarinet, Viola and Piano & Romance for Viola and Orchestra
  type: MusicAlbum
  date published: 1990-01-01
isrc code: FRZ208906702
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x8efd0fc32adfd87c0d67392c964fa4980ea8197aca2001378ecdeb1340b00335
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208906702
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0x8efd0fc32adfd87c0d67392c964fa4980ea8197aca2001378ecdeb1340b00335. 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/FRZ208906702.
  date published: 2026-07-08T03:22:41Z
audio: Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 2, Allegro con moto
  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
    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)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 3, Andante con moto
type: MusicRecording
duration: PT7M47S
duration ms: 467626
explicit: false
by artist: Max Bruch
by artist: François-René Duchâble
by artist: Gérard Caussé
by artist: Paul Meyer
in album: Bruch: Concerto for Clarinet and Viola, 8 Pieces for Clarinet, Viola and Piano & Romance for Viola and Orchestra
  type: MusicAlbum
  date published: 1990-01-01
isrc code: FRZ208906703
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:29:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9fff1b3f1e63020cb572d47eee111d19c2f94791ca40bf360e35e1002b53c1c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208906703
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0xc9fff1b3f1e63020cb572d47eee111d19c2f94791ca40bf360e35e1002b53c1c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRZ208906703.
  date published: 2026-07-08T03:53:27Z
audio: Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 3, Andante con moto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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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: Danceability
    type: PropertyValue
    value: 0.089
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.23
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.052
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.431
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
    value: Minor

Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 4, Allegro agitato
type: MusicRecording
duration: PT3M17S
duration ms: 197240
explicit: false
by artist: Max Bruch
by artist: François-René Duchâble
by artist: Gérard Caussé
by artist: Paul Meyer
in album: Bruch: Concerto for Clarinet and Viola, 8 Pieces for Clarinet, Viola and Piano & Romance for Viola and Orchestra
  type: MusicAlbum
  date published: 1990-01-01
isrc code: FRZ208906704
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T01:00:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c67fe761f3439d1d8c5f0d7f832d02032bed94e11dc31d82a91160b1203baf2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
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/FRZ208906704
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 0x8c67fe761f3439d1d8c5f0d7f832d02032bed94e11dc31d82a91160b1203baf2. 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/FRZ208906704.
  date published: 2026-07-08T03:20:19Z
audio: Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 4, Allegro agitato
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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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
    value: 0.41
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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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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Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 5, Andante
type: MusicRecording
duration: PT5M21S
duration ms: 321733
explicit: false
by artist: Max Bruch
by artist: François-René Duchâble
by artist: Gérard Caussé
by artist: Paul Meyer
in album: Bruch: Concerto for Clarinet and Viola, 8 Pieces for Clarinet, Viola and Piano & Romance for Viola and Orchestra
  type: MusicAlbum
  date published: 1990-01-01
isrc code: FRZ208906705
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:50:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb01537bf7561c7c6b460b4416ffaf536770a97f8492d49186a37d2b8f04a7169
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208906705
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0xb01537bf7561c7c6b460b4416ffaf536770a97f8492d49186a37d2b8f04a7169. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRZ208906705.
  date published: 2026-07-08T03:53:27Z
audio: Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 5, Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.095
  additional property: Energy
    type: PropertyValue
    value: 0.014
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.126
  additional property: Liveness
    type: PropertyValue
    value: 0.1
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.042
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.057
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 6, Andante con moto
type: MusicRecording
duration: PT6M13S
duration ms: 373826
explicit: false
by artist: Max Bruch
by artist: François-René Duchâble
by artist: Gérard Caussé
by artist: Paul Meyer
in album: Bruch: Concerto for Clarinet and Viola, 8 Pieces for Clarinet, Viola and Piano & Romance for Viola and Orchestra
  type: MusicAlbum
  date published: 1990-01-01
isrc code: FRZ208906706
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T21:54:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0662ce3f9709814e987531fd9672a7ebff0c01b987cbfcb97ecbd67f8f0c1aa6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208906706
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0x0662ce3f9709814e987531fd9672a7ebff0c01b987cbfcb97ecbd67f8f0c1aa6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRZ208906706.
  date published: 2026-07-08T03:53:27Z
audio: Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 6, Andante con moto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.865
  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
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.18
  additional property: Energy
    type: PropertyValue
    value: 0.013
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.37
  additional property: Liveness
    type: PropertyValue
    value: 0.099
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.055
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.792
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 7, Allegro vivace, ma non troppo
type: MusicRecording
duration: PT3M14S
duration ms: 194866
explicit: false
by artist: Max Bruch
by artist: François-René Duchâble
by artist: Gérard Caussé
by artist: Paul Meyer
in album: Bruch: Concerto for Clarinet and Viola, 8 Pieces for Clarinet, Viola and Piano & Romance for Viola and Orchestra
  type: MusicAlbum
  date published: 1990-01-01
isrc code: FRZ208906707
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:34:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe6c6cd4e05d2c51c1499eecd3217b6132d762f739972502670f3382b8d5718ab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208906707
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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
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  date published: 2026-07-08T03:22:41Z
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Bruch: 8 Pieces for Clarinet, Viola and Piano, Op. 83: No. 8, Moderato
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  date published: 2026-07-08T03:53:27Z
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Bruch: Romanze, Op. 85
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  date published: 2026-07-08T03:20:19Z
audio: Bruch: Romanze, Op. 85
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Brahms: Paganini Variations, Op. 35, Intermezzi, Op. 117 & Rhapsodies, Op. 79
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Chopin: Piano Sonatas Nos. 2 "Funeral March" & 3
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Liszt : Piano Sonata, 2 Légendes & Bénédiction de Dieu dans la solitude
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Chopin: Sonate pour violoncelle et piano, Grand Duo concertant & Introduction et Grande Polonaise
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    date published: 2026-07-08T03:22:41Z
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track: Chopin: Grand Duo concertant sur des thèmes de Robert le Diable: III. Allegretto
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    date published: 2026-07-08T03:20:19Z
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track: Chopin: Cello Sonata in G Minor, Op. 65: III. Largo

Chopin: Études, Op. 10 & 25
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Saint-Saëns: Études, Op. 52 & 111
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    date published: 2026-07-08T03:22:41Z
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  subject of: OpenTimestamps Proof of Existence
  audio: Saint-Saëns: 6 Études, Op. 52: No. 5, Prélude et fugue en la majeur
track: Saint-Saëns: 6 Études, Op. 52: No. 6, Étude en forme de valse

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OTSVerificationAPI
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OTSTimestamp
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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

OpenTimestamps Proof of Existence
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description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8aa2a6f3259e2cad310229da1688118adfec546cd44b0192e17b040325b6a8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRZ112000495.
date published: 2026-07-08T08:56:20Z

Saint-Saëns: 6 Études, Op. 52: No. 5, Prélude et fugue en la majeur
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Saint-Saëns: 6 Études, Op. 52: No. 6, Étude en forme de valse
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duration: PT6M5S
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by artist: François-René Duchâble
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Saint-Saëns: 6 Études, Op. 52: No. 6, Étude en forme de valse
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Debussy: Fantaisie for Piano and Orchestra, CD 72, L. 73: I. Andante - Allegro
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by artist: François-René Duchâble
by artist: Orchestre National Du Capitole De Toulouse
by artist: Michel Plasson
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Debussy: Fantaisie for Piano and Orchestra, CD 72, L. 73: I. Andante - Allegro
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Beethoven: Bagatelle No. 25 in A Minor, WoO 59 "Für Elise"
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by artist: François-René Duchâble
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popularity: 26
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Beethoven: Bagatelle No. 25 in A Minor, WoO 59 "Für Elise"
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Beethoven: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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by artist: François-René Duchâble
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popularity: 26
genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Beethoven: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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Fur Elise, WoO 59
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by artist: François-René Duchâble
in album: Dark Melancholy Classical
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popularity: 18
genre: classical
genre: classical-piano
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additional property: CopyrightID
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Fur Elise, WoO 59
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Beethoven: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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by artist: François-René Duchâble
in album: The Very Best of Beethoven
  type: MusicAlbum
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popularity: 17
genre: classical
genre: classical-piano
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Beethoven: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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Debussy: Fantaisie for Piano and Orchestra, CD 72, L. 73: I. Andante - Allegro
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3 Etudes de concert, S. 144: III. Un sospiro
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Fur Elise, WoO. 59
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Debussy: Fantaisie for Piano and Orchestra, CD 72, L. 73: I. Andante - Allegro
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