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genre: opera
popularity: 25
followers: 177
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subject of: OpenTimestamps Proof of Existence
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album: Bel Canto
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  date published: 2009-01-01
  track: Lucrezia Borgia / Act II: "Il segreto per esser felici"
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    by artist: Filarmonica del Teatro Comunale di Bologna
    by artist: Roberto Abbado
    by artist: Coro del Teatro Comunale di Bologna
    by artist: Paolo Vero
    in album: Bel Canto
      type: MusicAlbum
      date published: 2009-01-01
    popularity: 14
    genre: opera
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-06T07:16:32Z
    audio: Lucrezia Borgia / Act II: "Il segreto per esser felici"
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  track: L'assedio di Calais / Act I: "Al mio core"
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    by artist: Roberto Abbado
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      type: MusicAlbum
      date published: 2009-01-01
    popularity: 6
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-30T09:37:10Z
    audio: L'assedio di Calais / Act I: "Al mio core"
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  track: Roberto Devereux / Act I: "All'afflitto è dolce il pianto"
  track: Dom Sébastien, Roi de Portugal / Act II: "Que faire" - "Sol adoré de la patrie"
  track: Adelson e Salvini / Act I: "Dopo l'oscuro nembo"
  track: Maria Stuarda / Act I: "Si, vuol di Francia il Rege"
  track: Maria Stuarda / Act I: "Ah! quando all'ara scorgemi"
  track: Maria Stuarda / Act I: "In tal giorno di contento"
  track: Maria Stuarda / Act I: "Ah! dal ciel discenda un raggio"
  track: Tancredi / Act I: Andante
  track: Tancredi / Act I: "O patria! dolce, e ingrata patria"
  track: Tancredi / Act I: "Di tanti palpiti"
  track: Maometto II / Act 2: "In questi estremi istanti"
  track: I Capuleti e i Montecchi / Act I: "Lieto del dolce incarco"
  track: I Capuleti e i Montecchi / Act I: "Ascolta, se Romeo t'uccise"
  track: I Capuleti e i Montecchi / Act I: "Riedi al campo"
  track: I Capuleti e i Montecchi / Act I: "La tremenda ultrice spada"
  track: L'assedio di Calais / Act II: "Lo l'udia chiarmarmi a nome"
  track: L'assedio di Calais / Act II: "Suon tremendo!"
  track: L'assedio di Calais / Act II: "La speme un dolce palpito"
  track: I Capuleti e i Montecchi / Act II: Ella è morta, o sciagurato
track: Samson et Dalila, Op. 47, R. 288 / Act II: "Mon coeur s'ouvre à ta voix"
track: Adelson e Salvini / Act I: "Dopo l'oscuro nembo"
track: Roberto Devereux / Act I: "All'afflitto è dolce il pianto"
track: Serenata in E flat
track: La Favorite / Act 3: Oh! Mon Fernand
track: La Favorite / Act 3: Oh! Mon Fernand - Excerpt
track: I Capuleti e i Montecchi: Eccomi in lieta vesta / Act 1: Lieto del dolce incarno - La tremenda ultirce spada

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Roberto Devereux / Act I: "All'afflitto è dolce il pianto"
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duration: PT3M35S
duration ms: 215160
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by artist: Gaetano Donizetti
by artist: Elina Garanca
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
in album: Bel Canto
  type: MusicAlbum
  date published: 2009-01-01
popularity: 6
genre: opera
isrc code: DEN960802220
additional property: CopyrightID
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Roberto Devereux / Act I: "All'afflitto è dolce il pianto"
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Dom Sébastien, Roi de Portugal / Act II: "Que faire" - "Sol adoré de la patrie"
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by artist: Roberto Abbado
in album: Bel Canto
  type: MusicAlbum
  date published: 2009-01-01
popularity: 5
genre: opera
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Dom Sébastien, Roi de Portugal / Act II: "Que faire" - "Sol adoré de la patrie"
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Adelson e Salvini / Act I: "Dopo l'oscuro nembo"
type: MusicRecording
duration: PT6M33S
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by artist: Vincenzo Bellini
by artist: Elina Garanca
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
in album: Bel Canto
  type: MusicAlbum
  date published: 2009-01-01
popularity: 18
genre: opera
isrc code: DEN960802240
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Adelson e Salvini / Act I: "Dopo l'oscuro nembo"
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Maria Stuarda / Act I: "Si, vuol di Francia il Rege"
type: MusicRecording
duration: PT1M9S
duration ms: 69146
explicit: false
by artist: Gaetano Donizetti
by artist: Elina Garanca
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
in album: Bel Canto
  type: MusicAlbum
  date published: 2009-01-01
popularity: 4
genre: opera
isrc code: DEN960802251
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T21:56:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbb98ea53431b49a115adcfd1542be48df0560b67b50f216928fcefdab228325f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960321
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960321
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960802251
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T22:27:30Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb98ea53431b49a115adcfd1542be48df0560b67b50f216928fcefdab228325f. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960802251 — a six-check JSON result.
  date published: 2026-07-30T22:27:30Z
audio: Maria Stuarda / Act I: "Si, vuol di Francia il Rege"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.86
  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: 0.427
  additional property: Energy
    type: PropertyValue
    value: 0.046
  additional property: Speechiness
    type: PropertyValue
    value: 0.071
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.149
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.161
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.668
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Maria Stuarda / Act I: "Ah! quando all'ara scorgemi"
type: MusicRecording
duration: PT2M59S
duration ms: 179800
explicit: false
by artist: Gaetano Donizetti
by artist: Elina Garanca
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
in album: Bel Canto
  type: MusicAlbum
  date published: 2009-01-01
popularity: 4
genre: opera
isrc code: DEN960802252
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T10:21:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa4a0640cadc0a5780ee9f473d85c32e2abe163d15a3f37a26b8290041e072f72
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/DEN960802252
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a0640cadc0a5780ee9f473d85c32e2abe163d15a3f37a26b8290041e072f72. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960802252 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Maria Stuarda / Act I: "Ah! quando all'ara scorgemi"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.76
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.261
  additional property: Energy
    type: PropertyValue
    value: 0.057
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.044
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.708
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Maria Stuarda / Act I: "In tal giorno di contento"
type: MusicRecording
duration: PT1M43S
duration ms: 103706
explicit: false
by artist: Gaetano Donizetti
by artist: Ildebrando D'Arcangelo
by artist: Elina Garanca
by artist: Adrian Sampetrean
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
by artist: Coro del Teatro Comunale di Bologna
by artist: Paolo Vero
in album: Bel Canto
  type: MusicAlbum
  date published: 2009-01-01
popularity: 4
genre: opera
isrc code: DEN960802253
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T12:13:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0aa771153f66144e4f6b6ad088ce9ab0c97f21d8f16611dfa80ca38ffb2b38d3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960403
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960403
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960802253
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:04:34Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa771153f66144e4f6b6ad088ce9ab0c97f21d8f16611dfa80ca38ffb2b38d3. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960802253 — a six-check JSON result.
  date published: 2026-07-31T13:04:34Z
audio: Maria Stuarda / Act I: "In tal giorno di contento"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 149.201
  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: 0.286
  additional property: Energy
    type: PropertyValue
    value: 0.228
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.065
  additional property: Liveness
    type: PropertyValue
    value: 0.159
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.124
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.625
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Maria Stuarda / Act I: "Ah! dal ciel discenda un raggio"
type: MusicRecording
duration: PT3M49S
duration ms: 229813
explicit: false
by artist: Gaetano Donizetti
by artist: Elina Garanca
by artist: Ildebrando D'Arcangelo
by artist: Adrian Sampetrean
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
by artist: Coro del Teatro Comunale di Bologna
by artist: Paolo Vero
in album: Bel Canto
  type: MusicAlbum
  date published: 2009-01-01
popularity: 7
genre: opera
isrc code: DEN960802254
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:07:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd3c90eaecd19e1d5737aba27499e231d75152e97d280ddcbd03a81ded5efeb4f
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/DEN960802254
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c90eaecd19e1d5737aba27499e231d75152e97d280ddcbd03a81ded5efeb4f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960802254 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Maria Stuarda / Act I: "Ah! dal ciel discenda un raggio"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.367
  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: 0.333
  additional property: Energy
    type: PropertyValue
    value: 0.14
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.011
  additional property: Liveness
    type: PropertyValue
    value: 0.118
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.125
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.426
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Tancredi / Act I: Andante
type: MusicRecording
duration: PT2M3S
duration ms: 123826
explicit: false
by artist: Gioachino Rossini
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
in album: Bel Canto
  type: MusicAlbum
  date published: 2009-01-01
popularity: 4
genre: classical
genre: opera
isrc code: DEN960802261
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:44:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbbb2fa17f3e81727a5e2c5a13766cf863be297641437a506d06ebdaa99bf5d5e
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/DEN960802261
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb2fa17f3e81727a5e2c5a13766cf863be297641437a506d06ebdaa99bf5d5e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960802261 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Tancredi / Act I: Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 165.881
  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: 0.082
  additional property: Energy
    type: PropertyValue
    value: 0.011
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.944
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.82
  additional property: Liveness
    type: PropertyValue
    value: 0.1
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.136
  additional property: Loudness (dB)
    type: PropertyValue
    value: -35.63
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Tancredi / Act I: "O patria! dolce, e ingrata patria"
type: MusicRecording
duration: PT3M47S
duration ms: 227013
explicit: false
by artist: Gioachino Rossini
by artist: Elina Garanca
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
in album: Bel Canto
  type: MusicAlbum
  date published: 2009-01-01
popularity: 5
genre: classical
genre: opera
isrc code: DEN960802262
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:12:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7959ebd6a0075f38557116f81490a2fc17b22610d81046eab6e66ed6dafadbb6
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/DEN960802262
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7959ebd6a0075f38557116f81490a2fc17b22610d81046eab6e66ed6dafadbb6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960802262 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Tancredi / Act I: "O patria! dolce, e ingrata patria"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.979
  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: 0.196
  additional property: Energy
    type: PropertyValue
    value: 0.021
  additional property: Speechiness
    type: PropertyValue
    value: 0.067
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.269
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.964
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Tancredi / Act I: "Di tanti palpiti"
type: MusicRecording
duration: PT3M3S
duration ms: 183520
explicit: false
by artist: Gioachino Rossini
by artist: Elina Garanca
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
in album: Bel Canto
  type: MusicAlbum
  date published: 2009-01-01
popularity: 6
genre: classical
genre: opera
isrc code: DEN960802263
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:58:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa7fde681e7300c50ca228bb73457a5d0658dad983131f1fe30df765c2a34c608
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/DEN960802263
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 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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Tancredi / Act I: "Di tanti palpiti"
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Maometto II / Act 2: "In questi estremi istanti"
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duration: PT6M25S
duration ms: 385386
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by artist: Gioachino Rossini
by artist: Elina Garanca
by artist: Ekaterina Siurina
by artist: Matthew Polenzani
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
in album: Bel Canto
  type: MusicAlbum
  date published: 2009-01-01
popularity: 4
genre: classical
genre: opera
isrc code: DEN960802270
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T18:23:33Z
audio: Maometto II / Act 2: "In questi estremi istanti"
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I Capuleti e i Montecchi / Act I: "Lieto del dolce incarco"
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duration: PT1M44S
duration ms: 104106
explicit: false
by artist: Vincenzo Bellini
by artist: Elina Garanca
by artist: Matthew Polenzani
by artist: Ildebrando D'Arcangelo
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
by artist: Coro del Teatro Comunale di Bologna
in album: Bel Canto
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  date published: 2009-01-01
popularity: 3
genre: opera
isrc code: DEN960802281
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T12:24:41Z
audio: I Capuleti e i Montecchi / Act I: "Lieto del dolce incarco"
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I Capuleti e i Montecchi / Act I: "Ascolta, se Romeo t'uccise"
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duration: PT2M50S
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explicit: false
by artist: Vincenzo Bellini
by artist: Elina Garanca
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
in album: Bel Canto
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  date published: 2009-01-01
popularity: 5
genre: opera
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
audio: I Capuleti e i Montecchi / Act I: "Ascolta, se Romeo t'uccise"
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I Capuleti e i Montecchi / Act I: "Riedi al campo"
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duration: PT0M48S
duration ms: 48213
explicit: false
by artist: Vincenzo Bellini
by artist: Ildebrando D'Arcangelo
by artist: Elina Garanca
by artist: Matthew Polenzani
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
by artist: Coro del Teatro Comunale di Bologna
by artist: Paolo Vero
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popularity: 3
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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T22:27:44Z
audio: I Capuleti e i Montecchi / Act I: "Riedi al campo"
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I Capuleti e i Montecchi / Act I: "La tremenda ultrice spada"
type: MusicRecording
duration: PT3M34S
duration ms: 214426
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by artist: Vincenzo Bellini
by artist: Elina Garanca
by artist: Ildebrando D'Arcangelo
by artist: Matthew Polenzani
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
by artist: Coro del Teatro Comunale di Bologna
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popularity: 5
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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T08:38:45Z
audio: I Capuleti e i Montecchi / Act I: "La tremenda ultrice spada"
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L'assedio di Calais / Act II: "Lo l'udia chiarmarmi a nome"
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duration: PT4M27S
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by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
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popularity: 3
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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
audio: L'assedio di Calais / Act II: "Lo l'udia chiarmarmi a nome"
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L'assedio di Calais / Act II: "Suon tremendo!"
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by artist: Ekaterina Siurina
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by artist: Roberto Abbado
in album: Bel Canto
  type: MusicAlbum
  date published: 2009-01-01
popularity: 3
genre: opera
isrc code: DEN960802292
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additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960802292
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T18:48:12Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-31T18:48:12Z
audio: L'assedio di Calais / Act II: "Suon tremendo!"
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L'assedio di Calais / Act II: "La speme un dolce palpito"
type: MusicRecording
duration: PT2M34S
duration ms: 154173
explicit: false
by artist: Gaetano Donizetti
by artist: Elina Garanca
by artist: Ekaterina Siurina
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
in album: Bel Canto
  type: MusicAlbum
  date published: 2009-01-01
popularity: 3
genre: opera
isrc code: DEN960802293
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960802293
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17996af630626aad980ca4d5b7f203a0a59826d0bc7d73f2162994eb9b26c35a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960802293 — a six-check JSON result.
  date published: 2026-07-31T02:19:15Z
audio: L'assedio di Calais / Act II: "La speme un dolce palpito"
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I Capuleti e i Montecchi / Act II: Ella è morta, o sciagurato
type: MusicRecording
duration: PT3M29S
duration ms: 209920
explicit: false
by artist: Vincenzo Bellini
by artist: Elina Garanca
by artist: Matthew Polenzani
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
in album: Bel Canto
  type: MusicAlbum
  date published: 2009-01-01
popularity: 3
genre: opera
isrc code: DEN960802300
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960802300
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T12:51:24Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765f92e635009a36d4418557119a6e55fdb70962199169bd5a2fbaf872dfedc4. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960802300 — a six-check JSON result.
  date published: 2026-07-30T12:51:24Z
audio: I Capuleti e i Montecchi / Act II: Ella è morta, o sciagurato
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    type: PropertyValue
    value: 5
  additional property: Danceability
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  additional property: Acousticness
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  additional property: Loudness (dB)
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Samson et Dalila, Op. 47, R. 288 / Act II: "Mon coeur s'ouvre à ta voix"
type: MusicRecording
duration: PT6M11S
duration ms: 371946
explicit: false
by artist: Camille Saint-Saëns
by artist: Elina Garanca
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Yves Abel
in album: The Best Of Elina Garanca
  type: MusicAlbum
  date published: 2013-01-01
popularity: 22
genre: classical
genre: late-romantic-era
genre: french-romanticism
isrc code: DEN961201320
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961201320
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6859ec58022266aaf406dcbe1d8c1fd868b8189e922e63a88f3d04404dd7cf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961201320 — a six-check JSON result.
  date published: 2026-06-13T13:32:09Z
audio: Samson et Dalila, Op. 47, R. 288 / Act II: "Mon coeur s'ouvre à ta voix"
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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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Adelson e Salvini / Act I: "Dopo l'oscuro nembo"
type: MusicRecording
duration: PT6M27S
duration ms: 387160
explicit: false
by artist: Vincenzo Bellini
by artist: Elina Garanca
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
in album: The Best Of Elina Garanca
  type: MusicAlbum
  date published: 2013-01-01
popularity: 8
genre: opera
isrc code: DEN960802240
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T22:43:13+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960802240
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb651d7193f61c9b78d43c071b707b3e6a272b70bd8f7e1e15934edecddbf0c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960802240 — a six-check JSON result.
  date published: 2026-07-06T06:56:49Z
audio: Adelson e Salvini / Act I: "Dopo l'oscuro nembo"
  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
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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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Roberto Devereux / Act I: "All'afflitto è dolce il pianto"
type: MusicRecording
duration: PT3M35S
duration ms: 215160
explicit: false
by artist: Gaetano Donizetti
by artist: Elina Garanca
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Roberto Abbado
in album: Donizetti: An Introduction
  type: MusicAlbum
  date published: 2020-06-27
popularity: 8
genre: opera
isrc code: DEN960802220
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T19:02:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x01dac5944172b0929f7a1754e08651a2d81227f7a7af94e61fb3d905d0e98fd2
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/DEN960802220
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01dac5944172b0929f7a1754e08651a2d81227f7a7af94e61fb3d905d0e98fd2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960802220 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Roberto Devereux / Act I: "All'afflitto è dolce il pianto"
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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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
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.036
  additional property: Loudness (dB)
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  additional property: Mode Name
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Serenata in E flat
type: MusicRecording
duration: PT7M9S
duration ms: 429160
explicit: false
by artist: Gioachino Rossini
by artist: Filarmonica del Teatro Comunale di Bologna
by artist: Riccardo Chailly
in album: Rossini: String Sonatas, etc.
  type: MusicAlbum
  date published: 1992-01-01
popularity: 7
genre: classical
genre: opera
isrc code: GBF079110530
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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  value: 2026-07-29T11:06:38+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960099
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079110530
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T11:30:20Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd115347ad0d0e01df07ff072fe64154403f87f9a072a50aed235fdc4a94d57. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079110530 — a six-check JSON result.
  date published: 2026-07-29T11:30:20Z
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La Favorite / Act 3: Oh! Mon Fernand
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La Favorite / Act 3: Oh! Mon Fernand - Excerpt
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I Capuleti e i Montecchi: Eccomi in lieta vesta / Act 1: Lieto del dolce incarno - La tremenda ultirce spada
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