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album: Marie Hubert - Fille du Roy
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  track: Ah ! toi belle hirondelle (Arr. for Soprano and Chamber Ensemble by Claude Lapalme)
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  track: Concerto pour cor No. 2 en mi bémol majeur, K. 417: I. Allegro
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  track: Rondo pour cor en mi bémol majeur, K. 371: I. Allegro
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album: Roy: Trois poèmes d'Éloi de Grandmont: I. L'âge des rêves
album: Night Chill

Concerto pour cor No. 2 en mi bémol majeur, K. 417: I. Allegro
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Concerto pour cor No. 2 en mi bémol majeur, K. 417: II. Andante
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Concerto pour cor No. 2 en mi bémol majeur, K. 417: III. Rondo : Allegro
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  additional property: Mode (Major/Minor)
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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
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.945
  additional property: Liveness
    type: PropertyValue
    value: 0.124
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.359
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.16
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Concerto pour cor No. 3 en mi bémol majeur, K. 447: I. Allegro
type: MusicRecording
duration: PT6M49S
duration ms: 409546
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Louis-Philippe Marsolais
by artist: Mathieu Lussier
by artist: Les Violons du Roy
in album: Mozart: Horn Concertos & Bassoon Concerto
  type: MusicAlbum
  date published: 2017-03-01
genre: classical
genre: classical-era
isrc code: CAJ721774304
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T18:07:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe649802f39096aa59c2f2628804ba8a588fd0b9af7e3f52e207b13e46d9235a6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721774304
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe649802f39096aa59c2f2628804ba8a588fd0b9af7e3f52e207b13e46d9235a6. 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/CAJ721774304.
  date published: 2026-07-02T03:55:08Z
audio: Concerto pour cor No. 3 en mi bémol majeur, K. 447: I. Allegro
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  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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    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Concerto pour cor No. 3 en mi bémol majeur, K. 447: II. Romance : Larghetto
type: MusicRecording
duration: PT4M1S
duration ms: 241106
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Mathieu Lussier
by artist: Louis-Philippe Marsolais
by artist: Les Violons du Roy
in album: Mozart: Horn Concertos & Bassoon Concerto
  type: MusicAlbum
  date published: 2017-03-01
genre: classical
genre: classical-era
isrc code: CAJ721774305
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721774305
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0fbc6b3f65f16c4f413f6c973804067cf4443dc427958b8b66cff27d8a60d30. 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/CAJ721774305.
  date published: 2026-07-02T03:55:08Z
audio: Concerto pour cor No. 3 en mi bémol majeur, K. 447: II. Romance : Larghetto
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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    value: 0.181
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.543
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
    value: Major

Concerto pour cor No. 4 En mi bémol majeur, K. 495: I. Allegro maestoso
type: MusicRecording
duration: PT8M3S
duration ms: 483093
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Louis-Philippe Marsolais
by artist: Les Violons du Roy
by artist: Mathieu Lussier
in album: Mozart: Horn Concertos & Bassoon Concerto
  type: MusicAlbum
  date published: 2017-03-01
genre: classical
genre: classical-era
isrc code: CAJ721774307
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T07:03:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3592dc04be0e77f947b65198369bdfce944a7a7c00a31f8080f1ac1ab4fcd76c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721774307
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3592dc04be0e77f947b65198369bdfce944a7a7c00a31f8080f1ac1ab4fcd76c. 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/CAJ721774307.
  date published: 2026-07-02T03:55:08Z
audio: Concerto pour cor No. 4 En mi bémol majeur, K. 495: I. Allegro maestoso
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.8
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  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
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.302
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
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Concerto pour cor No. 4 En mi bémol majeur, K. 495: III. Rondo : Allegro vivace
type: MusicRecording
duration: PT3M36S
duration ms: 216066
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Louis-Philippe Marsolais
by artist: Mathieu Lussier
by artist: Les Violons du Roy
in album: Mozart: Horn Concertos & Bassoon Concerto
  type: MusicAlbum
  date published: 2017-03-01
genre: classical
genre: classical-era
isrc code: CAJ721774309
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T07:02:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x844e47435d7701804d7a1756aa9c10dab291fade68bf08a3bd16e43aed6478cb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721774309
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844e47435d7701804d7a1756aa9c10dab291fade68bf08a3bd16e43aed6478cb. 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/CAJ721774309.
  date published: 2026-07-02T03:55:08Z
audio: Concerto pour cor No. 4 En mi bémol majeur, K. 495: III. Rondo : Allegro vivace
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.028
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.465
  additional property: Energy
    type: PropertyValue
    value: 0.144
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.934
  additional property: Liveness
    type: PropertyValue
    value: 0.124
  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.931
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Concerto pour cor No. 3 en mi bémol majeur, K. 447: III. Allegro
type: MusicRecording
duration: PT3M32S
duration ms: 212200
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Les Violons du Roy
by artist: Louis-Philippe Marsolais
by artist: Mathieu Lussier
in album: Mozart: Horn Concertos & Bassoon Concerto
  type: MusicAlbum
  date published: 2017-03-01
genre: classical
genre: classical-era
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddaaadb644f7cae1405b0c2f517af67edbe737ad6a9074cdbd4bf309fdd0640. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:47:18Z), 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/CAJ721774306.
  date published: 2026-07-22T20:47:18Z
audio: Concerto pour cor No. 3 en mi bémol majeur, K. 447: III. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 180.335
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.386
  additional property: Energy
    type: PropertyValue
    value: 0.278
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.915
  additional property: Liveness
    type: PropertyValue
    value: 0.123
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.536
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.932
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: CAJ721774306
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: 959163
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-22T18:47:29+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721774306
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959163
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959163
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T18:47:29+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 cor No. 4 En mi bémol majeur, K. 495: II. Romance : Andante cantabile
type: MusicRecording
duration: PT4M27S
duration ms: 267320
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Mathieu Lussier
by artist: Louis-Philippe Marsolais
by artist: Les Violons du Roy
in album: Mozart: Horn Concertos & Bassoon Concerto
  type: MusicAlbum
  date published: 2017-03-01
genre: classical
genre: classical-era
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed93740f7734877ca2c6428eb013e4440eca0caab10b940c62c09cf30b25a227. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:29:43Z), 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/CAJ721774308.
  date published: 2026-07-22T20:29:43Z
audio: Concerto pour cor No. 4 En mi bémol majeur, K. 495: II. Romance : Andante cantabile
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 94.074
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.077
  additional property: Energy
    type: PropertyValue
    value: 0.021
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.974
  additional property: Liveness
    type: PropertyValue
    value: 0.153
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.144
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.623
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: CAJ721774308
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: 959159
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-22T17:48:40+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721774308
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959159
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959159
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T17:48:40+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 cor No. 1 en ré majeur, K. 412 (386b): I. [allegro]
type: MusicRecording
duration: PT4M32S
duration ms: 272346
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Les Violons du Roy
by artist: Louis-Philippe Marsolais
by artist: Mathieu Lussier
in album: Mozart: Horn Concertos & Bassoon Concerto
  type: MusicAlbum
  date published: 2017-03-01
genre: classical
genre: classical-era
subject of: OpenTimestamps Proof of Existence
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Concerto pour cor No. 1 en ré majeur, K. 412 (386b): II. Rondo : Allegro
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  date published: 2026-07-30T00:53:20Z
audio: Concerto pour cor No. 1 en ré majeur, K. 412 (386b): II. Rondo : Allegro
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Rondo pour cor en mi bémol majeur, K. 371: I. Allegro
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genre: classical
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  date published: 2026-07-30T10:42:33Z
audio: Rondo pour cor en mi bémol majeur, K. 371: I. Allegro
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Concerto en fa majeur pour violon, 2 hautbois, basson, 2 cors, cordes et basse continue, RV 569: I. Allegro
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  date published: 2026-07-06T06:56:49Z
audio: Concerto en fa majeur pour violon, 2 hautbois, basson, 2 cors, cordes et basse continue, RV 569: I. Allegro
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Concerto en fa majeur pour violon, 2 hautbois, basson, 2 cors, cordes et basse continue, RV 574: II. Grave
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audio: Concerto en fa majeur pour violon, 2 hautbois, basson, 2 cors, cordes et basse continue, RV 574: II. Grave
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Concerto en fa majeur pour violon, 2 hautbois, basson, 2 cors, cordes et basse continue, RV 569: II. Adagio
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by artist: Kirsten Zander
by artist: Pascale Giguère
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T07:51:46Z
audio: Concerto en fa majeur pour violon, 2 hautbois, basson, 2 cors, cordes et basse continue, RV 569: II. Adagio
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Concerto en fa majeur pour violon, 2 hautbois, basson, 2 cors, cordes et basse continue, RV 569: III. Allegro
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by artist: Mathieu Lussier
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  date published: 2026-07-29T19:35:34Z
audio: Concerto en fa majeur pour violon, 2 hautbois, basson, 2 cors, cordes et basse continue, RV 569: III. Allegro
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Concerto en fa majeur pour violon, 2 hautbois, basson, 2 cors, cordes et basse continue, RV 574: I. Allegro
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audio: Concerto en fa majeur pour violon, 2 hautbois, basson, 2 cors, cordes et basse continue, RV 574: I. Allegro
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Concerto en fa majeur pour violon, 2 hautbois, basson, 2 cors, cordes et basse continue, RV 574: III. Allegro
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audio: Concerto en fa majeur pour violon, 2 hautbois, basson, 2 cors, cordes et basse continue, RV 574: III. Allegro
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Élégie pour cor et piano, FP 168
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  date published: 2026-07-07T14:18:56Z
audio: Élégie pour cor et piano, FP 168
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12 Klavierstücke für kleine und große Kinder, Op. 85, No. 12: Abendlied (Arr. for Horn and Piano by Louis-Philippe Marsolais)
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audio: 12 Klavierstücke für kleine und große Kinder, Op. 85, No. 12: Abendlied (Arr. for Horn and Piano by Louis-Philippe Marsolais)
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Concerto en si mineur pour 4 violons, violoncelle, cordes et basse continue, Op. 3 No. 10, RV 580: I. Allegro
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Concerto en si mineur pour 4 violons, violoncelle, cordes et basse continue, Op. 3 No. 10, RV 580: III. Allegro
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audio: Concerto en si mineur pour 4 violons, violoncelle, cordes et basse continue, Op. 3 No. 10, RV 580: III. Allegro
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Concerto en mi mineur pour 4 violons, cordes et basse continue, Op. 3 No. 4, RV 550: III. Adagio
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Sinfonia de l’opéra La verità in cimento, RV 739: I. Allegro
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Sinfonia de l’opéra La verità in cimento, RV 739: II. Andante
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Concerto en do majeur pour 2 trompettes, cordes et basse continue, RV 537: II. Largo
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Concerto en do majeur pour 2 trompettes, cordes et basse continue, RV 537: III. Allegro
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track: Élégie pour cor et piano, FP 168

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