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album: Les 100 Plus Beaux Airs de Roberto Alagna
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  track: L'elisir d'amore / Act II: Una furtiva lagrima
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      date published: 2026-07-08T03:53:27Z
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  track: Turandot / Act 3: Nessun dorma!
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album: Classical Music for Reading
album: Martinia Franca Festival - 30th Anniversary
album: Eternity: The Timeless Music of Australia's Composers
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album: The Classic 100: Opera - The Top 10 & Selected Highlights
album: Cancer: Music by the Great Cancerians
album: The Finest Music of France
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Le villi, Act I, Scene 1: Preludio
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by artist: Giacomo Puccini
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by artist: Guy Comentale
by artist: Marco Guidarini
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popularity: 1
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  date published: 2026-07-08T08:56:20Z
audio: Le villi, Act I, Scene 1: Preludio
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Le villi, Act I, Scene 4: Non esser, Anna mia (Roberto, Anna)
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  date published: 2026-07-08T03:22:41Z
audio: Le villi, Act I, Scene 4: Non esser, Anna mia (Roberto, Anna)
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Le villi, Act I, Scene 5: Presto in viaggio (Anna, Roberto, Guglielmo)
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Le villi, Act II, Scene 1: L'abbandono (Récitante)
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by artist: Marco Guidarini
by artist: Chœur de Radio France
by artist: Choeur de Radio France
in album: Puccini: Le villi
  type: MusicAlbum
  date published: 2002-01-01
popularity: 1
isrc code: FR10S1713538
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:21:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfcee3fcfa4f0b80e9fa1725dba13a01fa5ec53671b2685f6c1af4ba50c783ae4
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/FR10S1713538
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+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
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+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 0xfcee3fcfa4f0b80e9fa1725dba13a01fa5ec53671b2685f6c1af4ba50c783ae4. 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/FR10S1713538.
  date published: 2026-07-08T03:53:27Z
audio: Le villi, Act II, Scene 1: L'abbandono (Récitante)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.005
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.139
  additional property: Energy
    type: PropertyValue
    value: 0.033
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.959
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.383
  additional property: Liveness
    type: PropertyValue
    value: 0.174
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.765
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le villi, Act II, Scene 3: Anima santa della figlia mia (Guglielmo)
type: MusicRecording
duration: PT5M9S
duration ms: 309920
explicit: false
by artist: Giacomo Puccini
by artist: Ludovic Tezier
by artist: Marco Guidarini
by artist: Orchestre Philharmonique de Radio France
by artist: Guy Comentale
in album: Puccini: Le villi
  type: MusicAlbum
  date published: 2002-01-01
popularity: 1
isrc code: FR10S1713540
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:51:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x79c031ab6c30b841ae1998c24362d4831092f22318c1aa088710b131ca898827
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/FR10S1713540
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
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: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+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 0x79c031ab6c30b841ae1998c24362d4831092f22318c1aa088710b131ca898827. 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/FR10S1713540.
  date published: 2026-07-08T03:20:19Z
audio: Le villi, Act II, Scene 3: Anima santa della figlia mia (Guglielmo)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 167.924
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.203
  additional property: Energy
    type: PropertyValue
    value: 0.107
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.128
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.101
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.598
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Le villi, Act I, Scene 2: Eviva! Eviva!
type: MusicRecording
duration: PT5M53S
duration ms: 353946
explicit: false
by artist: Giacomo Puccini
by artist: Orchestre Philharmonique de Radio France
by artist: Marco Guidarini
by artist: Guy Comentale
by artist: Chœur de Radio France
by artist: Choeur de Radio France
in album: Puccini: Le villi
  type: MusicAlbum
  date published: 2002-01-01
popularity: 1
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18561bd1bf96262b2cb523c7da23dabb88190b415527dda946093c174b2ada9. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/FR10S1713534.
  date published: 2026-07-31T08:38:45Z
audio: Le villi, Act I, Scene 2: Eviva! Eviva!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.792
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.339
  additional property: Energy
    type: PropertyValue
    value: 0.1
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.954
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.414
  additional property: Liveness
    type: PropertyValue
    value: 0.105
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.133
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.884
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: FR10S1713534
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: 960370
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T08:38:45+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1713534
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960370
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960370
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:38:45+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

Le villi, Act I, Scene 3: Se come voi piccina io fossi (Anna)
type: MusicRecording
duration: PT6M44S
duration ms: 404866
explicit: false
by artist: Giacomo Puccini
by artist: Melanie Diener
by artist: Marco Guidarini
by artist: Orchestre Philharmonique de Radio France
by artist: Guy Comentale
in album: Puccini: Le villi
  type: MusicAlbum
  date published: 2002-01-01
popularity: 1
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ba55cc639bbe225c4e4f04d5a7e74ed58ca8fc76e381dd3e9e38555370b890. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/FR10S1713535.
  date published: 2026-07-31T15:59:18Z
audio: Le villi, Act I, Scene 3: Se come voi piccina io fossi (Anna)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.823
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.197
  additional property: Energy
    type: PropertyValue
    value: 0.062
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.008
  additional property: Liveness
    type: PropertyValue
    value: 0.098
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.046
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.353
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FR10S1713535
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: 960427
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T15:59:18+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1713535
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960427
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960427
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:59:18+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

Le villi, Act II, Scene 2: La tregenda (Récitante)
type: MusicRecording
duration: PT4M41S
duration ms: 281346
explicit: false
by artist: Giacomo Puccini
by artist: Sylvie David
by artist: Marco Guidarini
by artist: Orchestre Philharmonique de Radio France
by artist: Guy Comentale
in album: Puccini: Le villi
  type: MusicAlbum
  date published: 2002-01-01
popularity: 1
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46040624ac846692dbfa04e1b08081ecd316a2895b8b59f28467df56f52d077b. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FR10S1713539.
  date published: 2026-07-31T12:24:41Z
audio: Le villi, Act II, Scene 2: La tregenda (Récitante)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.027
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.508
  additional property: Energy
    type: PropertyValue
    value: 0.168
  additional property: Speechiness
    type: PropertyValue
    value: 0.117
  additional property: Acousticness
    type: PropertyValue
    value: 0.943
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.019
  additional property: Liveness
    type: PropertyValue
    value: 0.096
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.238
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.59
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: FR10S1713539
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: 960397
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T12:24:41+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1713539
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41+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

Le villi, Act II, Scene 4: Torna ai felici (Roberto)
type: MusicRecording
duration: PT12M50S
duration ms: 770866
explicit: false
by artist: Giacomo Puccini
by artist: Aquiles Machado
by artist: Marco Guidarini
by artist: Orchestre Philharmonique de Radio France
by artist: Guy Comentale
in album: Puccini: Le villi
  type: MusicAlbum
  date published: 2002-01-01
popularity: 1
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123d37e4dd3cad64f25f5cb5bab4e89fb833860f6317119a4d60ccea83c89ae1. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/FR10S1713541.
  date published: 2026-07-31T10:20:10Z
audio: Le villi, Act II, Scene 4: Torna ai felici (Roberto)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 91.638
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.15
  additional property: Energy
    type: PropertyValue
    value: 0.092
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.134
  additional property: Liveness
    type: PropertyValue
    value: 0.117
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.052
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.239
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: FR10S1713541
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: 960389
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T10:20:10+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1713541
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960389
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960389
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T10:20:10+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

Le villi, Act II, Scene 5: Gran scena e duetto (Anna, Roberto)
type: MusicRecording
duration: PT10M23S
duration ms: 623253
explicit: false
by artist: Giacomo Puccini
by artist: Melanie Diener
by artist: Orchestre Philharmonique de Radio France
by artist: Guy Comentale
by artist: Marco Guidarini
by artist: Aquiles Machado
in album: Puccini: Le villi
  type: MusicAlbum
  date published: 2002-01-01
popularity: 1
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83f78661220846738f750c2219a95c83a991fc4ce09b8501a4c2bca7eb56220. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FR10S1713542.
  date published: 2026-07-31T15:20:15Z
audio: Le villi, Act II, Scene 5: Gran scena e duetto (Anna, Roberto)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.869
  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: 0.202
  additional property: Energy
    type: PropertyValue
    value: 0.266
  additional property: Speechiness
    type: PropertyValue
    value: 0.284
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.093
  additional property: Liveness
    type: PropertyValue
    value: 0.703
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.089
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.237
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FR10S1713542
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
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Concert for Piano and Orchestra in G Minor, Op. 15: Romanza
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by artist: Roberto Giordano
by artist: Orchestra I Pomeriggi Musicali
by artist: Marco Guidarini
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:22:41Z
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Concert for Piano and Orchestra in G Minor, Op. 15: Allegro animato
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by artist: Roberto Giordano
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  date published: 2026-07-08T03:22:41Z
audio: Concert for Piano and Orchestra in G Minor, Op. 15: Allegro animato
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Concert for Piano and Orchestra in G Minor, Op. 15: Moderato Maestoso
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by artist: Roberto Giordano
by artist: Orchestra I Pomeriggi Musicali
by artist: Marco Guidarini
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  date published: 2026-07-30T15:42:38Z
audio: Concert for Piano and Orchestra in G Minor, Op. 15: Moderato Maestoso
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Piano Concerto No. 2 in A-Flat Major, H. 31: V. Poco adagio
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by artist: Paolo Restani
by artist: Orchestre philharmonique de Nice
by artist: Marco Guidarini
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T08:56:20Z
audio: Piano Concerto No. 2 in A-Flat Major, H. 31: V. Poco adagio
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Piano Concerto No. 2 in A-Flat Major, H. 31: VI. Rondo. Moderato innocente
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audio: Piano Concerto No. 2 in A-Flat Major, H. 31: VI. Rondo. Moderato innocente
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Piano Concerto No. 4 in E-Flat Major, H. 28: I. Allegro moderato
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  date published: 2026-07-08T08:56:20Z
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Piano Concerto No. 4 in E-Flat Major, H. 28: III. Rondo. Allegretto
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Piano Concerto No. 6 in C Major, H. 49: II. Larghetto
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Piano Concerto No. 7 in C Minor, H. 58: I. Allegro moderato maestoso - Lento - Tempo I
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Piano Concerto No. 1 in E-Flat Major, H. 27: I. Allegro
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  date published: 2026-07-31T00:26:26Z
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Piano Concerto No. 1 in E-Flat Major, H. 27: II. Air écossais. Adagio non troppo
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Piano Concerto No. 1 in E-Flat Major, H. 27: III. Rondo finale. Allegro vivace
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Piano Concerto No. 2 in A-Flat Major, H. 31: IV. Allegro moderato
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Piano Concerto No. 3 in E-Flat Major, H. 32: I. Allegro moderato
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Piano Concerto No. 3 in E-Flat Major, H. 32: II. Nocturne No. 2 in C Minor, H. 25. Moderato e molto espressivo
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Piano Concerto No. 3 in E-Flat Major, H. 32: III. Rondo. Tempo di polacca
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Piano Concerto No. 4 in E-Flat Major, H. 28: II. Siciliano. Un poco adagio
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Piano Concerto No. 5 in C Major, H. 39 'L'incendie par l'orage': I. Allegro moderato
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Idomeneo, re di Creta, K. 366: Overture
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Lucrezia Borgia: Prologue: Preludio
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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
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Lucrezia Borgia: Prologue: Preludio
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Lucrezia Borgia: Prologue, Scene 1: Bella Venezia! (Gazella, Petrucci, Orsini, Liverotto, Vitellozzo)
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duration: PT2M49S
duration ms: 169480
explicit: false
by artist: Gaetano Donizetti
by artist: Roberto Gattei
by artist: Gianni Paci
by artist: Marianna Pizzolato
by artist: Massimiliano Luciani
by artist: Carlo Giacchetta
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
in album: Donizetti: Lucrezia Borgia
  type: MusicAlbum
  date published: 2014-08-01
popularity: 0
genre: opera
isrc code: ITDQ71225602
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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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  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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Lucrezia Borgia: Prologue, Scene 1: Bella Venezia! (Gazella, Petrucci, Orsini, Liverotto, Vitellozzo)
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Lucrezia Borgia: Act I: Finale: Infelice! Il veleno bevesti (Lucrezia, Gennaro)
type: MusicRecording
duration: PT2M33S
duration ms: 153200
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by artist: Gaetano Donizetti
by artist: Mariella Devia
by artist: Giuseppe Filianoti
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
in album: Donizetti: Lucrezia Borgia
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  date published: 2014-08-01
popularity: 1
genre: opera
isrc code: ITDQ71225613
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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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  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
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Lucrezia Borgia: Act I: Finale: Infelice! Il veleno bevesti (Lucrezia, Gennaro)
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Lucrezia Borgia: Prologue, Scene 1: Senti! La danza invitaci (Chorus)
type: MusicRecording
duration: PT2M48S
duration ms: 168226
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by artist: Gaetano Donizetti
by artist: Il Coro Lirico Marchigiano “Vincenzo Bellini”
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
in album: Donizetti: Lucrezia Borgia
  type: MusicAlbum
  date published: 2014-08-01
popularity: 1
genre: opera
isrc code: ITDQ71225604
additional property: CopyrightID
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Lucrezia Borgia: Prologue, Scene 1: Senti! La danza invitaci (Chorus)
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Lucrezia Borgia: Prologue, Scene 3: Maffio Orsini, signora, son'io (Orsini, Gazella, Petrucci, Liverotto, Gennaro, Lucrezia)
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duration: PT4M42S
duration ms: 282226
explicit: false
by artist: Gaetano Donizetti
by artist: Marianna Pizzolato
by artist: Roberto Gattei
by artist: Gianni Paci
by artist: Massimiliano Luciani
by artist: Giuseppe Filianoti
by artist: Mariella Devia
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
in album: Donizetti: Lucrezia Borgia
  type: MusicAlbum
  date published: 2014-08-01
popularity: 1
genre: opera
isrc code: ITDQ71212560
additional property: CopyrightID
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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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  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: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Lucrezia Borgia: Prologue, Scene 3: Maffio Orsini, signora, son'io (Orsini, Gazella, Petrucci, Liverotto, Gennaro, Lucrezia)
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Lucrezia Borgia: Prologue, Scene 1: Nella fatal di Rimini (Orsini)
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duration: PT4M26S
duration ms: 266440
explicit: false
by artist: Gaetano Donizetti
by artist: Marianna Pizzolato
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
in album: Donizetti: Lucrezia Borgia
  type: MusicAlbum
  date published: 2014-08-01
popularity: 0
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T02:19:15Z
audio: Lucrezia Borgia: Prologue, Scene 1: Nella fatal di Rimini (Orsini)
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additional property: OTSTimestamp
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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 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

Lucrezia Borgia: Act II Scene 1: Rischiarata e la finestra (Rustighello, Chorus)
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duration: PT4M38S
duration ms: 278400
explicit: false
by artist: Gaetano Donizetti
by artist: Gregory Bonfatti
by artist: Il Coro Lirico Marchigiano “Vincenzo Bellini”
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
in album: Donizetti: Lucrezia Borgia
  type: MusicAlbum
  date published: 2014-08-01
popularity: 0
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T17:29:52Z
audio: Lucrezia Borgia: Act II Scene 1: Rischiarata e la finestra (Rustighello, Chorus)
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  additional property: Danceability
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  additional property: Acousticness
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  additional property: Loudness (dB)
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    value: -23.357
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: ITDQ71225614
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: 960441
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T17:29:52+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDQ71225614
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960441
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960441
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52+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

Lucrezia Borgia: Prologue, Scene 2: Tranquillo ei posa (Lucrezia, Gubetta)
type: MusicRecording
duration: PT5M10S
duration ms: 310200
explicit: false
by artist: Gaetano Donizetti
by artist: Mariella Devia
by artist: Stefano Rinaldi-Miliani
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
in album: Donizetti: Lucrezia Borgia
  type: MusicAlbum
  date published: 2014-08-01
popularity: 0
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fa32e72185585c7aa51dbd6cfe1fa0cf5852fea89575adb995c52c8963af2f. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/ITDQ71225605.
  date published: 2026-07-31T10:20:10Z
audio: Lucrezia Borgia: Prologue, Scene 2: Tranquillo ei posa (Lucrezia, Gubetta)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.424
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.27
  additional property: Energy
    type: PropertyValue
    value: 0.093
  additional property: Speechiness
    type: PropertyValue
    value: 0.073
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.182
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.504
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: ITDQ71225605
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: 960389
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T10:20:10+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDQ71225605
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960389
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960389
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T10:20:10+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

Lucrezia Borgia: Prologue, Scene 3: Com'e bello (Lucrezia)
type: MusicRecording
duration: PT5M26S
duration ms: 326226
explicit: false
by artist: Gaetano Donizetti
by artist: Mariella Devia
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
in album: Donizetti: Lucrezia Borgia
  type: MusicAlbum
  date published: 2014-08-01
popularity: 1
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76210a511436c1a20021cb5bb6051e9b7b26260fd9259982ea327978625abaa8. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDQ71225606.
  date published: 2026-07-31T09:25:34Z
audio: Lucrezia Borgia: Prologue, Scene 3: Com'e bello (Lucrezia)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.675
  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: 0.302
  additional property: Energy
    type: PropertyValue
    value: 0.149
  additional property: Speechiness
    type: PropertyValue
    value: 0.075
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.133
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.101
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.459
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: ITDQ71225606
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: 960379
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T09:25:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDQ71225606
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960379
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960379
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T09:25:34+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Lucrezia Borgia: Prologue, Scene 3: Di pescatore ignobile (Gennaro)
type: MusicRecording
duration: PT3M37S
duration ms: 217680
explicit: false
by artist: Gaetano Donizetti
by artist: Giuseppe Filianoti
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
in album: Donizetti: Lucrezia Borgia
  type: MusicAlbum
  date published: 2014-08-01
popularity: 0
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d64c07be7ce795977624816599aec466bf754c0c481b0b21a0985eb2f1bb15. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDQ71225608.
  date published: 2026-07-31T23:51:35Z
audio: Lucrezia Borgia: Prologue, Scene 3: Di pescatore ignobile (Gennaro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 157.821
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.249
  additional property: Energy
    type: PropertyValue
    value: 0.167
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.137
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.233
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.882
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: ITDQ71225608
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: 960481
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T23:51:35+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDQ71225608
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960481
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960481
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:51:35+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Lucrezia Borgia: Prologue, Scene 3: Ama tua madre (Lucrezia, Gennaro)
type: MusicRecording
duration: PT3M27S
duration ms: 207826
explicit: false
by artist: Gaetano Donizetti
by artist: Mariella Devia
by artist: Giuseppe Filianoti
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
in album: Donizetti: Lucrezia Borgia
  type: MusicAlbum
  date published: 2014-08-01
popularity: 0
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896b498fb9bd790532fc6ebf375f6b902eb29e02bffdcbe7b74820e39ffacb22. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ITDQ71225609.
  date published: 2026-07-31T15:20:15Z
audio: Lucrezia Borgia: Prologue, Scene 3: Ama tua madre (Lucrezia, Gennaro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.394
  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: 0.407
  additional property: Energy
    type: PropertyValue
    value: 0.273
  additional property: Speechiness
    type: PropertyValue
    value: 0.095
  additional property: Acousticness
    type: PropertyValue
    value: 0.952
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.791
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.235
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.63
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: ITDQ71225609
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: 960418
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T15:20:15+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDQ71225609
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15+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

Lucrezia Borgia: Prologue, Scene 3: Gente appressa (Lucrezia, Gennaro)
type: MusicRecording
duration: PT1M36S
duration ms: 96080
explicit: false
by artist: Gaetano Donizetti
by artist: Mariella Devia
by artist: Giuseppe Filianoti
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
in album: Donizetti: Lucrezia Borgia
  type: MusicAlbum
  date published: 2014-08-01
popularity: 0
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486a704c7dea51afded8a4ff250881c914dc2d1111c54361a5097e160b3b5630. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/ITDQ71225600.
  date published: 2026-07-31T13:50:38Z
audio: Lucrezia Borgia: Prologue, Scene 3: Gente appressa (Lucrezia, Gennaro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.214
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.32
  additional property: Energy
    type: PropertyValue
    value: 0.236
  additional property: Speechiness
    type: PropertyValue
    value: 0.064
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.201
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.084
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.347
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: ITDQ71225600
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: 960410
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T13:50:38+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDQ71225600
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960410
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960410
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:50:38+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

Lucrezia Borgia: Act II Scene 5: Il segreto per esser felici (Orsini)
type: MusicRecording
duration: PT4M5S
duration ms: 245000
explicit: false
by artist: Gaetano Donizetti
by artist: Marianna Pizzolato
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
in album: Donizetti: Lucrezia Borgia
  type: MusicAlbum
  date published: 2014-08-01
popularity: 0
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58a47e8dda84f01183b6ff28f2cf9a3873fafb20b4f9f16ec960fb6b2859d67. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ITDQ71225610.
  date published: 2026-07-31T15:20:15Z
audio: Lucrezia Borgia: Act II Scene 5: Il segreto per esser felici (Orsini)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.71
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.376
  additional property: Energy
    type: PropertyValue
    value: 0.203
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.952
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.553
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.157
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.054
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: ITDQ71225610
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: 960418
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T15:20:15+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDQ71225610
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15+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

Lucrezia Borgia: Act I Scene 1: Vieni, la mia vendetta (Duca)
type: MusicRecording
duration: PT4M45S
duration ms: 285986
explicit: false
by artist: Gaetano Donizetti
by artist: Alex Esposito
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
in album: Donizetti: Lucrezia Borgia
  type: MusicAlbum
  date published: 2014-08-01
popularity: 1
genre: opera
subject of: OpenTimestamps Proof of Existence
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audio: Lucrezia Borgia: Act I Scene 1: Vieni, la mia vendetta (Duca)
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Lucrezia Borgia: Act II Scene 8: Figlio! … Era desso il figlio mio (Lucrezia)
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by artist: Mariella Devia
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
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popularity: 2
genre: opera
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  date published: 2026-07-30T19:11:09Z
audio: Lucrezia Borgia: Act II Scene 8: Figlio! … Era desso il figlio mio (Lucrezia)
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additional property: OTSVerifyInstructions
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Lucrezia Borgia: Act I Scene 3: Qui che fai? (Rustighello, Astolfo)
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duration: PT4M26S
duration ms: 266200
explicit: false
by artist: Gaetano Donizetti
by artist: Gregory Bonfatti
by artist: Giacomo Medici
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
in album: Donizetti: Lucrezia Borgia
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popularity: 0
genre: opera
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  date published: 2026-07-31T23:30:38Z
audio: Lucrezia Borgia: Act I Scene 3: Qui che fai? (Rustighello, Astolfo)
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Les pêcheurs de perles. WD 13, Act I: "Je crois entendre encore"
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by artist: David Hobson
by artist: Marco Guidarini
by artist: Tasmanian Symphony Orchestra
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genre: classical
genre: opera
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:20:19Z
audio: Les pêcheurs de perles. WD 13, Act I: "Je crois entendre encore"
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Maria Stuarda: Act II: Allenta il pie, Regina
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explicit: false
by artist: Gaetano Donizetti
by artist: Lena Nordin
by artist: Kungliga Hovkapellet
by artist: Marco Guidarini
in album: Carissimi, Donizetti & Schumann: Mary Stuart Queen of Scots
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  date published: 2000-01-01
genre: opera
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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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  date published: 2026-06-13T12:47:07Z
audio: Maria Stuarda: Act II: Allenta il pie, Regina
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Maria Stuarda: Act II: O nube! che lieve per l'aria ti aggiri
type: MusicRecording
duration: PT4M11S
duration ms: 251706
explicit: false
by artist: Gaetano Donizetti
by artist: Lena Nordin
by artist: Kungliga Hovkapellet
by artist: Marco Guidarini
in album: Carissimi, Donizetti & Schumann: Mary Stuart Queen of Scots
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genre: opera
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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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  date published: 2026-06-13T12:47:07Z
audio: Maria Stuarda: Act II: O nube! che lieve per l'aria ti aggiri
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Maria Stuarda: Act II: Nella pace del mestro riposo
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duration ms: 166800
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by artist: Gaetano Donizetti
by artist: Lena Nordin
by artist: Kungliga Hovkapellet
by artist: Marco Guidarini
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genre: opera
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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: TokenDeploymentConfirmed
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  date published: 2026-06-13T12:47:07Z
audio: Maria Stuarda: Act II: Nella pace del mestro riposo
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Maria Stuarda: Act III: Vedeste?
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by artist: Kungliga Hovkapellet
by artist: Stockholms Kammarkör
by artist: Marco Guidarini
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genre: opera
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additional property: OTSVerifyInstructions
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  date published: 2026-06-13T12:47:07Z
audio: Maria Stuarda: Act III: Vedeste?
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Maria Stuarda: Act III: Anna! - Io vi rivedo alfin - Deh! Tu di un'umile preghiera il suono
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explicit: false
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by artist: Lena Nordin
by artist: Stockholms Kammarkör
by artist: Kungliga Hovkapellet
by artist: Marco Guidarini
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  date published: 2026-06-13T12:47:07Z
audio: Maria Stuarda: Act III: Anna! - Io vi rivedo alfin - Deh! Tu di un'umile preghiera il suono
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Maria Stuarda: Act III: O colpo! - E gia vicino del tuo morir l'istante
type: MusicRecording
duration: PT5M27S
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by artist: Gaetano Donizetti
by artist: Lena Nordin
by artist: Carina Morling
by artist: Tord Wallström
by artist: Stockholms Kammarkör
by artist: Anders Bergstrom
by artist: Kungliga Hovkapellet
by artist: Marco Guidarini
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genre: opera
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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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  date published: 2026-06-13T12:47:07Z
audio: Maria Stuarda: Act III: O colpo! - E gia vicino del tuo morir l'istante
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Maria Stuarda: Act III: Last Scene: Giunge il Conte
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by artist: Lena Nordin
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by artist: Tord Wallström
by artist: Stockholms Kammarkör
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by artist: Kungliga Hovkapellet
by artist: Marco Guidarini
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genre: opera
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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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  date published: 2026-06-13T12:47:07Z
audio: Maria Stuarda: Act III: Last Scene: Giunge il Conte
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Maria Stuarda: Act III: Ah! se un giorno de queste ritorte
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duration ms: 304306
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by artist: Gaetano Donizetti
by artist: Lena Nordin
by artist: Carina Morling
by artist: Ingus Petersons
by artist: Stockholms Kammarkör
by artist: Tord Wallström
by artist: Anders Bergstrom
by artist: Kungliga Hovkapellet
by artist: Marco Guidarini
in album: Carissimi, Donizetti & Schumann: Mary Stuart Queen of Scots
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genre: opera
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additional property: CopyrightChainExplorerURL
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Maria Stuarda: Act III: Ah! se un giorno de queste ritorte
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L'elisir d'amore, Act II: "Una furtiva lagrima"
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by artist: Marco Guidarini
by artist: Tasmanian Symphony Orchestra
in album: Presenting David Hobson
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genre: opera
isrc code: AUAB00050127
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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
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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: L'elisir d'amore, Act II: "Una furtiva lagrima"
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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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  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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Orphée et Eurydice, Wq. 30, Act III: "J’ai perdu mon Eurydice"
type: MusicRecording
duration: PT3M51S
duration ms: 231000
explicit: false
by artist: Christoph Willibald Gluck
by artist: David Hobson
by artist: Marco Guidarini
by artist: Tasmanian Symphony Orchestra
in album: Presenting David Hobson
  type: MusicAlbum
  date published: 2006
genre: classical
genre: opera
isrc code: AUAB00050124
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:10:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a864d1755d409bab9bd8ac91ec499973a8d8a02f299cb8b8b3cec18e1c951f0
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/AUAB00050124
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
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
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a864d1755d409bab9bd8ac91ec499973a8d8a02f299cb8b8b3cec18e1c951f0. 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/AUAB00050124.
  date published: 2026-07-08T03:20:19Z
audio: Orphée et Eurydice, Wq. 30, Act III: "J’ai perdu mon Eurydice"
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  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Instrumentalness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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La bohème, Act I: "Che gelida manina"
type: MusicRecording
duration: PT4M37S
duration ms: 277720
explicit: false
by artist: Giacomo Puccini
by artist: David Hobson
by artist: Marco Guidarini
by artist: Tasmanian Symphony Orchestra
in album: Presenting David Hobson
  type: MusicAlbum
  date published: 2006
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff6e6606fa3ee68146702a4d1d1a3440802cce82a257602bd2f4bcfc59b3fcb. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/AUAB00050140.
  date published: 2026-07-30T00:53:20Z
audio: La bohème, Act I: "Che gelida manina"
  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
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.165
  additional property: Energy
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    value: 0.204
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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    value: 0.072
  additional property: Loudness (dB)
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    value: -16.964
  additional property: Key Name
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    value: Ab
  additional property: Mode Name
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isrc code: AUAB00050140
additional property: CopyrightID
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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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB00050140
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960181
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 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

Instrumentalness
type: PropertyValue
value: 0.002

Liveness
type: PropertyValue
value: 0.321

Valence (Positivity)
type: PropertyValue
value: 0.098

Loudness (dB)
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value: -28.309

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor

Turandot / Act 3: Nessun dorma!
type: MusicRecording
duration: PT3M34S
duration ms: 214360
explicit: false
by artist: Giacomo Puccini
by artist: Roberto Alagna
by artist: Sir Mark Elder
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: London Voices
by artist: Terry Edwards
in album: Les 100 Plus Beaux Airs de Roberto Alagna
  type: MusicAlbum
  date published: 2013-01-01
popularity: 1
isrc code: GBAYC0301566
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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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/GBAYC0301566
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 0xc3214dd9b019c48236b22d63bbaeea3e0d5a688185dc6fb9dee46b856938c25e. 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/GBAYC0301566.
  date published: 2026-07-08T03:53:27Z
audio: Turandot / Act 3: Nessun dorma!
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 164.075
  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
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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)
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  additional property: Loudness (dB)
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    value: -20.819
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Viva Opéra !
type: MusicAlbum
date published: 2006-01-01
track: L'elisir d'amore / Act II: Una furtiva lagrima
  type: MusicRecording
  duration: PT4M22S
  duration ms: 262440
  explicit: false
  by artist: Gaetano Donizetti
  by artist: Roberto Alagna
  by artist: Evelino Pidò
  by artist: London Philharmonic Orchestra
  in album: Viva Opéra !
    type: MusicAlbum
    date published: 2006-01-01
  popularity: 1
  genre: opera
  isrc code: GBAYC0103080
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf6f792ae5bb5278bfff2ddbf1b55382ea7fe771d9ead6a5768420d613e8339e6
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  additional property: OTSBitcoinBlock
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    value: 956349
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956349
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0103080
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T11:34:59Z
  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 0xf6f792ae5bb5278bfff2ddbf1b55382ea7fe771d9ead6a5768420d613e8339e6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBAYC0103080.
    date published: 2026-07-02T11:34:59Z
  audio: L'elisir d'amore / Act II: Una furtiva lagrima
    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
      value: 5
    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
      type: PropertyValue
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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
      value: 0
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.081
    additional property: Loudness (dB)
      type: PropertyValue
      value: -26.497
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Werther: Pourquoi me réveiller
  type: MusicRecording
  duration: PT2M58S
  duration ms: 178906
  explicit: false
  by artist: Jules Massenet
  by artist: Roberto Alagna
  by artist: London Philharmonic Orchestra
  by artist: Richard Armstrong
  in album: Viva Opéra !
    type: MusicAlbum
    date published: 2006-01-01
  popularity: 13
  genre: classical
  isrc code: GBAYC9500381
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4d7dc0f6a58ed86655906b17495089d0b9563d2ba738ee9c9df618f73d41a7a9
  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/GBAYC9500381
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7dc0f6a58ed86655906b17495089d0b9563d2ba738ee9c9df618f73d41a7a9. 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/GBAYC9500381.
    date published: 2026-07-02T03:55:08Z
  audio: Werther: Pourquoi me réveiller
    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
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
      value: 0.976
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.431
    additional property: Liveness
      type: PropertyValue
      value: 0.18
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.039
    additional property: Loudness (dB)
      type: PropertyValue
      value: -23.567
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
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track: La Gioconda, Op. 9 / Act 2: Cielo e mar
  type: MusicRecording
  duration: PT5M10S
  duration ms: 310333
  explicit: false
  by artist: Amilcare Ponchielli
  by artist: Roberto Alagna
  by artist: Sir Mark Elder
  by artist: Orchestra of the Royal Opera House, Covent Garden
  in album: Viva Opéra !
    type: MusicAlbum
    date published: 2006-01-01
  popularity: 2
  isrc code: GBAYC0302236
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: La Gioconda, Op. 9 / Act 2: Cielo e mar
track: Martha: M'appari
track: Carmen: La fleur que tu m'avais jetée

CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0x8a23ba0c6efdfb2342611ee1d02ebb5a902d3d93f8491737352f2a33f836f495

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 957145

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957145

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0302236

OTSTimestamp
type: PropertyValue
value: 2026-07-08T08:56:20Z

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 0x8a23ba0c6efdfb2342611ee1d02ebb5a902d3d93f8491737352f2a33f836f495. 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/GBAYC0302236.
date published: 2026-07-08T08:56:20Z

La Gioconda, Op. 9 / Act 2: Cielo e mar
type: AudioObject
additional property: Tempo (BPM)
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  value: 109.769
additional property: Musical Key
  type: PropertyValue
  value: 3
additional property: Mode (Major/Minor)
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additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
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  value: 0.224
additional property: Energy
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additional property: Speechiness
  type: PropertyValue
  value: 0.039
additional property: Acousticness
  type: PropertyValue
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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)
  type: PropertyValue
  value: -25.133
additional property: Key Name
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additional property: Mode Name
  type: PropertyValue
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Martha: M'appari
type: MusicRecording
duration: PT2M52S
duration ms: 172866
explicit: false
by artist: Friedrich von Flotow
by artist: Roberto Alagna
by artist: London Philharmonic Orchestra
by artist: Richard Armstrong
in album: Viva Opéra !
  type: MusicAlbum
  date published: 2006-01-01
popularity: 6
isrc code: CH4529580100
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-22T13:56:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xae2d6f58b24de901b503285b3b75cd86ceef461e78475e5d7a4465412dcb6d52
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/CH4529580100
additional property: OTSTimestamp
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Carmen: La fleur que tu m'avais jetée
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Early Romantic Piano Concertos
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Paer: Sofonisba
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Ettore Pozzoli: Allegro di concerto, Tema con variazioni
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Sgambati: Concert for piano & Orchestra (& music by martini, corelli, gluck & respighi)
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Paolo Restani Collection, Highlights
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Field: Complete Piano Concertos
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track: Piano Concerto No. 4 in E-Flat Major, H. 28: III. Rondo. Allegretto
track: Piano Concerto No. 6 in C Major, H. 49: II. Larghetto
track: Piano Concerto No. 7 in C Minor, H. 58: I. Allegro moderato maestoso - Lento - Tempo I
track: Piano Concerto No. 1 in E-Flat Major, H. 27: I. Allegro
track: Piano Concerto No. 1 in E-Flat Major, H. 27: II. Air écossais. Adagio non troppo
track: Piano Concerto No. 1 in E-Flat Major, H. 27: III. Rondo finale. Allegro vivace
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track: Piano Concerto No. 3 in E-Flat Major, H. 32: I. Allegro moderato
track: Piano Concerto No. 3 in E-Flat Major, H. 32: II. Nocturne No. 2 in C Minor, H. 25. Moderato e molto espressivo
track: Piano Concerto No. 3 in E-Flat Major, H. 32: III. Rondo. Tempo di polacca
track: Piano Concerto No. 4 in E-Flat Major, H. 28: II. Siciliano. Un poco adagio
track: Piano Concerto No. 5 in C Major, H. 39 'L'incendie par l'orage': I. Allegro moderato

The Essentials: Verdi
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Brahms: Piano Concerto No. 2
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Brahms: Piano Concerto Nos 1 & 2
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Brahms: Most Beautiful Adagios
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Classical Music for Reading
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type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331405740

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

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 0x4ba5d4e55a91a8b29273a2a6584191e310104ce0fe89090f1127ef7f29f84738. 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/NLY331405740.
date published: 2026-07-08T03:20:19Z

Rêverie, L. 68
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 94.479
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.322
additional property: Energy
  type: PropertyValue
  value: 0.021
additional property: Speechiness
  type: PropertyValue
  value: 0.036
additional property: Acousticness
  type: PropertyValue
  value: 0.99
additional property: Instrumentalness
  type: PropertyValue
  value: 0.906
additional property: Liveness
  type: PropertyValue
  value: 0.105
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.127
additional property: Loudness (dB)
  type: PropertyValue
  value: -33.086
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
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Martinia Franca Festival - 30th Anniversary
type: MusicAlbum
date published: 2000-01-01

Eternity: The Timeless Music of Australia's Composers
type: MusicAlbum
date published: 2004-01-02
track: Dawn Mantras
  type: MusicRecording
  duration: PT7M19S
  duration ms: 439626
  explicit: false
  by artist: Ross Edwards
  by artist: Brian Nixon
  by artist: Ian Cleworth
  by artist: Jane Sheldon
  by artist: Jim Franklin
  by artist: Metthew Doyle
  by artist: Rixon Thomas
  by artist: Lyn Williams
  in album: Eternity: The Timeless Music of Australia's Composers
    type: MusicAlbum
    date published: 2004-01-02
  isrc code: AUAB00450175
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T00:32:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf1cd4c2f51807946361c956ad3e0e2f29cfeb9238c0a586c2a0201f3a16ce093
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  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/AUAB00450175
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cd4c2f51807946361c956ad3e0e2f29cfeb9238c0a586c2a0201f3a16ce093. 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/AUAB00450175.
    date published: 2026-07-02T03:30:09Z
  audio: Dawn Mantras
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 106.575
    additional property: Musical Key
      type: PropertyValue
      value: 5
    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
      type: PropertyValue
      value: 0.07
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.573
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.973
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.031
    additional property: Loudness (dB)
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track: Scenes from Mer de Glace: Prelude, Lake Geneva
  type: MusicRecording
  duration: PT2M39S
  duration ms: 159200
  explicit: false
  by artist: Richard Meale
  by artist: Adelaide Symphony Orchestra
  by artist: David Porcelijn
  in album: Eternity: The Timeless Music of Australia's Composers
    type: MusicAlbum
    date published: 2004-01-02
  isrc code: AUAB00450185
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T01:57:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdc17091a20ff1f9640eb62196312614151d4ad9be3cc2f3cd14b42ff5b010ec9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  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/AUAB00450185
  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 0xdc17091a20ff1f9640eb62196312614151d4ad9be3cc2f3cd14b42ff5b010ec9. 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/AUAB00450185.
    date published: 2026-07-08T03:53:27Z
  audio: Scenes from Mer de Glace: Prelude, Lake Geneva
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 115.242
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.121
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
      value: 0.933
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
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    additional property: Loudness (dB)
      type: PropertyValue
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The Essentials: Mozart
type: MusicAlbum
date published: 2016-04-29
track: Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": I. Allegro
  type: MusicRecording
  duration: PT5M52S
  duration ms: 352466
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Capella Istropolitana
  by artist: Wolfgang Sobotka
  in album: The Essentials: Mozart
    type: MusicAlbum
    date published: 2016-04-29
  popularity: 2
  genre: classical
  genre: classical-era
  isrc code: USB8U1601061
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T07:26:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9e0b8dd2412ec5f0bc1bba92992f1b5fc854f65dffc659558920f89e432cb2c5
  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/USB8U1601061
  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 0x9e0b8dd2412ec5f0bc1bba92992f1b5fc854f65dffc659558920f89e432cb2c5. 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/USB8U1601061.
    date published: 2026-07-08T03:53:27Z
  audio: Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": I. Allegro
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
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    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
      type: PropertyValue
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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
      type: PropertyValue
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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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track: Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
  type: MusicRecording
  duration: PT5M42S
  duration ms: 342346
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Bavarian Radio Symphony Orchestra
  by artist: Rafael Kubelík
  in album: The Essentials: Mozart
    type: MusicAlbum
    date published: 2016-04-29
  popularity: 2
  genre: classical
  genre: classical-era
  isrc code: USB8U1601067
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T03:14:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0b4507ee74ec40c8f327b6f41767c8442442816f44fe80463dfcf4b3777dd285
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  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/USB8U1601067
  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 0x0b4507ee74ec40c8f327b6f41767c8442442816f44fe80463dfcf4b3777dd285. 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/USB8U1601067.
    date published: 2026-07-08T03:20:19Z
  audio: Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
    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
      type: PropertyValue
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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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    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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track: Serenade No. 10 in B-Flat Major, K. 361, "Gran Partita": IV. Adagio
  type: MusicRecording
  duration: PT5M57S
  duration ms: 357000
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: German Wind Soloists
  by artist: Richard Edlinger
  in album: The Essentials: Mozart
    type: MusicAlbum
    date published: 2016-04-29
  popularity: 6
  genre: classical
  genre: classical-era
  isrc code: USB8U1601070
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Serenade No. 10 in B-Flat Major, K. 361, "Gran Partita": IV. Adagio
track: Serenade No. 6 in D Major, K. 239, "Serenata Notturna": I. Marcia: Maestoso
track: Così fan tutte, K. 588: Overture
track: Idomeneo, re di Creta, K. 366: Overture

CopyrightRegisteredAt
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value: 2026-07-06T07:12:11+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xb48ec46e9c076268ead30b0055dfc1a811cdad1c6e9d68325250754f1b2ec694

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957041

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957041

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1601070

OTSTimestamp
type: PropertyValue
value: 2026-07-21T17:00:15Z

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 0xb48ec46e9c076268ead30b0055dfc1a811cdad1c6e9d68325250754f1b2ec694. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-21T17:00:15Z), 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/USB8U1601070.
date published: 2026-07-21T17:00:15Z

Serenade No. 10 in B-Flat Major, K. 361, "Gran Partita": IV. Adagio
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 108.802
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: 0.104
additional property: Energy
  type: PropertyValue
  value: 0.05
additional property: Speechiness
  type: PropertyValue
  value: 0.041
additional property: Acousticness
  type: PropertyValue
  value: 0.987
additional property: Instrumentalness
  type: PropertyValue
  value: 0.888
additional property: Liveness
  type: PropertyValue
  value: 0.117
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.04
additional property: Loudness (dB)
  type: PropertyValue
  value: -29.872
additional property: Key Name
  type: PropertyValue
  value: Eb
additional property: Mode Name
  type: PropertyValue
  value: Major

Serenade No. 6 in D Major, K. 239, "Serenata Notturna": I. Marcia: Maestoso
type: MusicRecording
duration: PT4M14S
duration ms: 254000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Swedish Chamber Orchestra
by artist: Petter Sundkvist
in album: The Essentials: Mozart
  type: MusicAlbum
  date published: 2016-04-29
popularity: 3
genre: classical
genre: classical-era
isrc code: USB8U1601075
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf7f58ca7e41b5c660474072ad9fee4de88e25225aa12633562fbf2cbfc9072aa
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/USB8U1601075
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 0xf7f58ca7e41b5c660474072ad9fee4de88e25225aa12633562fbf2cbfc9072aa. 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/USB8U1601075.
  date published: 2026-07-08T03:22:41Z
audio: Serenade No. 6 in D Major, K. 239, "Serenata Notturna": I. Marcia: Maestoso
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.161
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.44
  additional property: Energy
    type: PropertyValue
    value: 0.035
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.908
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.454
  additional property: Liveness
    type: PropertyValue
    value: 0.101
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.416
  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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Romantic Piano Concertos, Vol. 2
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100 Best Classical Music
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French & Italian Arias
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Lalo: Symphonie Espagnole Op. 21 / Concerto Russe Op. 29
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Bartok & Ravel & Tsjaikovski: Marco Guidarini
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track: Maria Stuarda: Act III: O colpo! - E gia vicino del tuo morir l'istante
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Massenet: Roma
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T05:09:12Z
  audio: Nabucco, Act III: Chorus of the Hebrew Slaves "Va pensiero, sull'ali dorate"
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track: Macbeth, Act II: Come dal ciel precipita (Banco)
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
  audio: Macbeth, Act II: Come dal ciel precipita (Banco)
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The Classic 100: Opera - The Top 10 & Selected Highlights
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date published: 2014-08-01
track: Rigoletto, Act III: Un dì, se ben rammentomi - Bella figlia dell'amore - Live
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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track: Der Rosenkavalier, Act III: Marie Theres' - Hab' mir's gelobt - Ist ein Traum - Spür nur dich
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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Cancer: Music by the Great Cancerians
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track: Orfeo ed Euridice, Wq. 30, Act 3: "Che farò senza Euridice?"
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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The Finest Music of France
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track: Les Contes d'Hoffmann, Act II: Barcarolle: "Belle nuit, ô nuit d’amour"
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T11:34:59Z
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50 Best - Verdi
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-22T08:47:43Z
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