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description: Franco Bonisolli (May 25, 1938 – October 30, 2003) was an Italian operatic tenor renowned for his roles in the Italian repertoire, notably his roles as Manrico and Calaf. Life and career Bonisolli wa
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  track: Orfeo ed Euridice, Wq. 30 (Excerpts): Overture
  track: Alceste, Wq. 44 (Excerpts): Divinités du Styx
  track: Orfeo ed Euridice, Wq. 30 (Excerpts): Ah, se intorno a quest'urna funestra
  track: Alceste, Wq. 44 (Excerpts): Vivez, aimez des jours
  track: Orfeo ed Euridice, Wq. 30 (Excerpts): Chiamo il mio ben così
  track: Alceste, Wq. 44 (Excerpts): Parez vos fronts de fleurs nouvelles
  track: Orfeo ed Euridice, Wq. 30 (Excerpts): Gli sguardi trattieni
  track: Alceste, Wq. 44 (Excerpts): Vivre sans toi
  track: Orfeo ed Euridice, Wq. 30 (Excerpts): Dance of the Blessed Spirits
  track: Alceste, Wq. 44 (Excerpts): Recois, Dieu bienfaisant
  track: Orfeo ed Euridice, Wq. 30 (Excerpts): Vieni appange il tuo consorte
  track: Alceste, Wq. 44 (Excerpts): A mes amis
  track: Orfeo ed Euridice, Wq. 30 (Excerpts): Che fiero momento
  track: Iphigénie en Tauride, Wq. 46 (Excerpts): Des noirs pressentiments
  track: Orfeo ed Euridice, Wq. 30 (Excerpts): Che faro senza Euridice?
  track: Iphigénie en Tauride, Wq. 46 (Excerpts): Patrie infortunée
  track: Orfeo ed Euridice, Wq. 30 (Excerpts): Trionfi amore
  track: Iphigénie en Tauride, Wq. 46 (Excerpts): Et tu prétends encore
  track: Paride ed Elena, Wq. 39 (Excerpts): Overture
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  track: Paride ed Elena, Wq. 39 (Excerpts): Non sdegnare, o bella Venere
  track: Iphigénie en Tauride, Wq. 46 (Excerpts): Non, cet affreux devoir
  track: Iphigénie en Tauride, Wq. 46 (Excerpts): O Diane, sois-nous propice
  track: Iphigénie en Tauride, Wq. 46 (Excerpts): Les Dieux longtemps en courroux
  track: Le cinesi, Wq. 18 (Excerpts): Son lungi e non mi brami
  track: Le cinesi, Wq. 18 (Excerpts): Voli il piede in lieti giri
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album: Nessun dorma, Vol. 4
album: 100 x Verdi, den man gehört haben muss
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album: Benvenuto Cellini

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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T20:35:49Z
audio: Orfeo ed Euridice, Wq. 30 (Excerpts): Ah, se intorno a quest'urna funestra
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Alceste, Wq. 44 (Excerpts): Vivez, aimez des jours
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by artist: Bavarian Radio Symphony Orchestra
by artist: Serge Baudo
by artist: Nicolai Gedda
by artist: Robert Gambill
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popularity: 16
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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: Alceste, Wq. 44 (Excerpts): Vivez, aimez des jours
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Orfeo ed Euridice, Wq. 30 (Excerpts): Chiamo il mio ben così
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by artist: Cappella Coloniensis
by artist: Ferdinand Leitner
by artist: Dietrich Fischer-Dieskau
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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: Orfeo ed Euridice, Wq. 30 (Excerpts): Chiamo il mio ben così
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Alceste, Wq. 44 (Excerpts): Parez vos fronts de fleurs nouvelles
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by artist: Bavarian Radio Symphony Orchestra
by artist: Serge Baudo
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popularity: 6
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T04:47:22Z
audio: Alceste, Wq. 44 (Excerpts): Parez vos fronts de fleurs nouvelles
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Orfeo ed Euridice, Wq. 30 (Excerpts): Gli sguardi trattieni
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-08-01T00:10:46Z
audio: Orfeo ed Euridice, Wq. 30 (Excerpts): Gli sguardi trattieni
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Alceste, Wq. 44 (Excerpts): Vivre sans toi
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popularity: 4
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T08:30:10Z
audio: Alceste, Wq. 44 (Excerpts): Vivre sans toi
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Orfeo ed Euridice, Wq. 30 (Excerpts): Dance of the Blessed Spirits
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T17:29:52Z
audio: Orfeo ed Euridice, Wq. 30 (Excerpts): Dance of the Blessed Spirits
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Alceste, Wq. 44 (Excerpts): Recois, Dieu bienfaisant
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by artist: Christoph Willibald Gluck
by artist: Bavarian Radio Symphony Orchestra
by artist: Serge Baudo
by artist: Nicolai Gedda
by artist: Jessye Norman
in album: Gluck: Opera Gala
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  date published: 2020-12-04
popularity: 3
genre: classical
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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  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: 2026-07-30T22:27:30Z
audio: Alceste, Wq. 44 (Excerpts): Recois, Dieu bienfaisant
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Orfeo ed Euridice, Wq. 30 (Excerpts): Vieni appange il tuo consorte
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duration: PT3M53S
duration ms: 233200
explicit: false
by artist: Christoph Willibald Gluck
by artist: Cappella Coloniensis
by artist: Ferdinand Leitner
by artist: Elisabeth Söderström
by artist: Dietrich Fischer-Dieskau
in album: Gluck: Opera Gala
  type: MusicAlbum
  date published: 2020-12-04
popularity: 2
genre: classical
genre: opera
isrc code: DEB956439132
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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: 2026-07-08T03:20:19Z
audio: Orfeo ed Euridice, Wq. 30 (Excerpts): Vieni appange il tuo consorte
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Alceste, Wq. 44 (Excerpts): A mes amis
type: MusicRecording
duration: PT2M41S
duration ms: 161600
explicit: false
by artist: Christoph Willibald Gluck
by artist: Bavarian Radio Symphony Orchestra
by artist: Serge Baudo
by artist: Nicolai Gedda
by artist: Jessye Norman
in album: Gluck: Opera Gala
  type: MusicAlbum
  date published: 2020-12-04
popularity: 3
genre: classical
genre: opera
isrc code: DEB958202721
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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 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: 2026-07-08T03:20:19Z
audio: Alceste, Wq. 44 (Excerpts): A mes amis
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Orfeo ed Euridice, Wq. 30 (Excerpts): Che fiero momento
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duration: PT3M5S
duration ms: 185760
explicit: false
by artist: Christoph Willibald Gluck
by artist: Cappella Coloniensis
by artist: Ferdinand Leitner
by artist: Elisabeth Söderström
in album: Gluck: Opera Gala
  type: MusicAlbum
  date published: 2020-12-04
popularity: 2
genre: classical
genre: opera
isrc code: DEB956439134
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: 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 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 0x5a72da4ecc4c55bad91829c8f1d6648bd4242e446b1dbd550b65742f41810dbd. 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/DEB956439134.
  date published: 2026-07-31T12:24:41Z
audio: Orfeo ed Euridice, Wq. 30 (Excerpts): Che fiero momento
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Iphigénie en Tauride, Wq. 46 (Excerpts): Des noirs pressentiments
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duration: PT2M27S
duration ms: 147666
explicit: false
by artist: Christoph Willibald Gluck
by artist: Munich Radio Orchestra
by artist: Lamberto Gardelli
by artist: Dietrich Fischer-Dieskau
in album: Gluck: Opera Gala
  type: MusicAlbum
  date published: 2020-12-04
popularity: 4
genre: classical
genre: opera
isrc code: DEB952020016
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: 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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e27298b64a8dd64e35f4c079a15f03bf21c835e827575807e432dcd64949f34. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEB952020016.
  date published: 2026-07-30T18:23:33Z
audio: Iphigénie en Tauride, Wq. 46 (Excerpts): Des noirs pressentiments
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Orfeo ed Euridice, Wq. 30 (Excerpts): Che faro senza Euridice?
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duration: PT4M3S
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by artist: Christoph Willibald Gluck
by artist: Cappella Coloniensis
by artist: Ferdinand Leitner
by artist: Dietrich Fischer-Dieskau
in album: Gluck: Opera Gala
  type: MusicAlbum
  date published: 2020-12-04
popularity: 4
genre: classical
genre: opera
isrc code: DEB956439136
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: 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 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 0x085057511b1d50304ed322397d376174b97d89691e67f870009d4ff53ee3993c. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DEB956439136.
  date published: 2026-07-31T02:51:48Z
audio: Orfeo ed Euridice, Wq. 30 (Excerpts): Che faro senza Euridice?
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Iphigénie en Tauride, Wq. 46 (Excerpts): Patrie infortunée
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duration: PT4M35S
duration ms: 275640
explicit: false
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by artist: Munich Radio Orchestra
by artist: Lamberto Gardelli
by artist: Pilar Lorengar
in album: Gluck: Opera Gala
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  date published: 2020-12-04
popularity: 9
genre: classical
genre: opera
isrc code: DEB952020005
additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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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 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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Orfeo ed Euridice, Wq. 30 (Excerpts): Trionfi amore
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  date published: 2026-07-31T17:29:52Z
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Iphigénie en Tauride, Wq. 46 (Excerpts): Et tu prétends encore
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T08:38:45Z
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Paride ed Elena, Wq. 39 (Excerpts): Overture
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T17:29:52Z
audio: Paride ed Elena, Wq. 39 (Excerpts): Overture
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Iphigénie en Tauride, Wq. 46 (Excerpts): Divinité de grandes âmes
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Paride ed Elena, Wq. 39 (Excerpts): Non sdegnare, o bella Venere
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subject of: OpenTimestamps Proof of Existence
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Iphigénie en Tauride, Wq. 46 (Excerpts): Non, cet affreux devoir
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subject of: OpenTimestamps Proof of Existence
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Iphigénie en Tauride, Wq. 46 (Excerpts): O Diane, sois-nous propice
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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 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: 2026-06-13T15:41:10Z
audio: Iphigénie en Tauride, Wq. 46 (Excerpts): O Diane, sois-nous propice
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Iphigénie en Tauride, Wq. 46 (Excerpts): Les Dieux longtemps en courroux
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duration: PT1M57S
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by artist: Munich Radio Orchestra
by artist: Lamberto Gardelli
by artist: Bavarian Radio Chorus
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popularity: 15
genre: classical
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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  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: 2026-07-02T03:30:09Z
audio: Iphigénie en Tauride, Wq. 46 (Excerpts): Les Dieux longtemps en courroux
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Le cinesi, Wq. 18 (Excerpts): Son lungi e non mi brami
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duration: PT11M27S
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by artist: Munich Radio Orchestra
by artist: Lamberto Gardelli
by artist: Thomas Moser
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popularity: 4
genre: classical
genre: opera
isrc code: DEB958917805
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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 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: Le cinesi, Wq. 18 (Excerpts): Son lungi e non mi brami
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Le cinesi, Wq. 18 (Excerpts): Voli il piede in lieti giri
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duration: PT5M54S
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by artist: Christoph Willibald Gluck
by artist: Munich Radio Orchestra
by artist: Lamberto Gardelli
by artist: Kaaren Erickson
by artist: Alexandrina Milcheva
by artist: Marga Schiml
by artist: Thomas Moser
in album: Gluck: Opera Gala
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popularity: 3
genre: classical
genre: opera
isrc code: DEB958917811
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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 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: Le cinesi, Wq. 18 (Excerpts): Voli il piede in lieti giri
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Verdi: Luisa Miller (Wiener Staatsoper Live)
type: MusicAlbum
date published: 2016-01-01

O sole mio, Vol. 2
type: MusicAlbum
date published: 2016-07-01

O sole mio, Vol. 1
type: MusicAlbum
date published: 2016-07-01
track: O sole mio (arr. E. Monti for voice, mandolin ensemble and orchestra)
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  by artist: Elvio Monti
  by artist: I Mandolini Napoletani di Gino del Vescovo
  by artist: Franco Bonisolli
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  popularity: 15
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-02T03:55:08Z
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Gluck: Paride ed Elena (Paris and Helen), Wq. 39
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date published: 2016-01-01

Gluck: Iphigenia auf Tauris (Iphigenia in Tauris), Wq. 46
type: MusicAlbum
date published: 2016-01-01

Bizet: Djamileh
type: MusicAlbum
date published: 2016-01-01

Grandi Voci
type: MusicAlbum
date published: 2012-04-11

Opera-Highlights
type: MusicAlbum
date published: 2010-02-09
track: Donna non vidi mai
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  by artist: Franco Bonisolli
  by artist: Hamburger Philharmoniker
  by artist: Giacomo Puccini
  by artist: Manon Lescaut
  by artist: Leone Magiera
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    date published: 2010-02-09
  genre: opera
  genre: canzone-napoletana
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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
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track: Nessun dorma
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  by artist: Turandot
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf172cd542d04b33743d4b684cd7beea968d53c9405b359d2153e421b09364b69. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA371010855.
    date published: 2026-07-29T19:35:34Z
  audio: Nessun dorma
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 102.402
    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: 0.197
    additional property: Energy
      type: PropertyValue
      value: 0.356
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.978
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.188
    additional property: Liveness
      type: PropertyValue
      value: 0.07
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.114
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.226
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Signor ascolta
  type: MusicRecording
  duration: PT2M23S
  duration ms: 143531
  explicit: false
  by artist: Hamburger Philharmoniker
  by artist: Giacomo Puccini
  by artist: Turandot
  by artist: Mirella Freni
  by artist: Leone Magiera
  in album: Opera-Highlights
    type: MusicAlbum
    date published: 2010-02-09
  genre: opera
  isrc code: USA371010856
  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: Signor ascolta
track: Tu che di gel sei cinta
track: Un bel di vedremo
track: Bimba, dagli occhi tuoi
track: Firenze è come un albero
track: O mio babbino caro
track: Lauretta mia
track: Libiamo, libiamo
track: E´strano...Sempre libera
track: Celeste Aida
track: La donna è mobile
track: Mi chiamano Mimi
track: Che gelida manina
track: O soave fanciulla
track: Di quella pira
track: Bacarole

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T08:15:03+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xfd8668eb1b01f11a5986dbf5862ede24038e04d33cc18391702e94b66d50d73f

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371010856

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 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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8668eb1b01f11a5986dbf5862ede24038e04d33cc18391702e94b66d50d73f. 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/USA371010856.
date published: 2026-07-08T03:20:19Z

Signor ascolta
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 122.498
additional property: Musical Key
  type: PropertyValue
  value: 6
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 6
additional property: Danceability
  type: PropertyValue
  value: 0.309
additional property: Energy
  type: PropertyValue
  value: 0.079
additional property: Speechiness
  type: PropertyValue
  value: 0.052
additional property: Acousticness
  type: PropertyValue
  value: 0.986
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.107
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.043
additional property: Loudness (dB)
  type: PropertyValue
  value: -20.997
additional property: Key Name
  type: PropertyValue
  value: F#
additional property: Mode Name
  type: PropertyValue
  value: Major

Tu che di gel sei cinta
type: MusicRecording
duration: PT2M14S
duration ms: 134025
explicit: false
by artist: Hamburger Philharmoniker
by artist: Mirella Freni
by artist: Turandot
by artist: Giacomo Puccini
by artist: Leone Magiera
in album: Opera-Highlights
  type: MusicAlbum
  date published: 2010-02-09
genre: opera
isrc code: USA371010857
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T16:46:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5e7d1392cc52f8a692c3a1f1ff28b431317104987d9def9a97eeb52b8896c559
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: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371010857
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52Z
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 0x5e7d1392cc52f8a692c3a1f1ff28b431317104987d9def9a97eeb52b8896c559. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USA371010857.
  date published: 2026-07-31T17:29:52Z
audio: Tu che di gel sei cinta
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.884
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.204
  additional property: Energy
    type: PropertyValue
    value: 0.152
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.013
  additional property: Liveness
    type: PropertyValue
    value: 0.1
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.077
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.661
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Un bel di vedremo
type: MusicRecording
duration: PT4M16S
duration ms: 256756
explicit: false
by artist: Giacomo Puccini
by artist: Hamburger Philharmoniker
by artist: Madame Butterfly
by artist: Mirella Freni
by artist: Leone Magiera
in album: Opera-Highlights
  type: MusicAlbum
  date published: 2010-02-09
isrc code: USA371010859
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T05:49:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xced2643b1d4be14c414e93955eaf7840668405e1379720f80cc344dc1277153d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
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/USA371010859
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 0xced2643b1d4be14c414e93955eaf7840668405e1379720f80cc344dc1277153d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371010859.
  date published: 2026-06-13T13:32:09Z
audio: Un bel di vedremo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.161
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.237
  additional property: Energy
    type: PropertyValue
    value: 0.174
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.14
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.44
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bimba, dagli occhi tuoi
type: MusicRecording
duration: PT10M32S
duration ms: 632052
explicit: false
by artist: Franco Bonisolli
by artist: Mirella Freni
by artist: Madame Butterfly
by artist: Hamburger Philharmoniker
by artist: Giacomo Puccini
by artist: Leone Magiera
in album: Opera-Highlights
  type: MusicAlbum
  date published: 2010-02-09
genre: opera
genre: canzone-napoletana
isrc code: USA371010860
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T04:43:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf938df8d04ca31dbae1eabfa4df064aba1f58153994e8ae4d5abdfb2548085a0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960209
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960209
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371010860
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T05:15:54Z
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 0xf938df8d04ca31dbae1eabfa4df064aba1f58153994e8ae4d5abdfb2548085a0. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USA371010860.
  date published: 2026-07-30T05:15:54Z
audio: Bimba, dagli occhi tuoi
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 167.887
  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: 0.179
  additional property: Energy
    type: PropertyValue
    value: 0.264
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.047
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.635
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Firenze è come un albero
type: MusicRecording
duration: PT2M4S
duration ms: 124160
explicit: false
by artist: Franco Bonisolli
by artist: Giacomo Puccini
by artist: Hamburger Philharmoniker
by artist: Gianni Schicchi
by artist: Leone Magiera
in album: Opera-Highlights
  type: MusicAlbum
  date published: 2010-02-09
genre: opera
genre: canzone-napoletana
isrc code: USA371010861
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T20:11:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1d774c2a2743e0a940a73a7e11065a8e1e807bdfcdc319dbe7b114a91587199c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960459
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960459
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371010861
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T20:22:46Z
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 0x1d774c2a2743e0a940a73a7e11065a8e1e807bdfcdc319dbe7b114a91587199c. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USA371010861.
  date published: 2026-07-31T20:22:46Z
audio: Firenze è come un albero
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.367
  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: 0.467
  additional property: Energy
    type: PropertyValue
    value: 0.291
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.445
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.335
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.433
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

O mio babbino caro
type: MusicRecording
duration: PT2M23S
duration ms: 143664
explicit: false
by artist: Hamburger Philharmoniker
by artist: Gianni Schicchi
by artist: Giacomo Puccini
by artist: Mirella Freni
by artist: Leone Magiera
in album: Opera-Highlights
  type: MusicAlbum
  date published: 2010-02-09
genre: opera
isrc code: USA371010862
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:54:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x51b103b88809ed3675ccae8bc7fbb608f55c3c1a87b04209a3f9fe9b37bb3684
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/USA371010862
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 0x51b103b88809ed3675ccae8bc7fbb608f55c3c1a87b04209a3f9fe9b37bb3684. 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/USA371010862.
  date published: 2026-07-08T03:20:19Z
audio: O mio babbino caro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 86.156
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.199
  additional property: Energy
    type: PropertyValue
    value: 0.215
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.938
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.082
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.078
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.107
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Lauretta mia
type: MusicRecording
duration: PT1M24S
duration ms: 84944
explicit: false
by artist: Franco Bonisolli
by artist: Hamburger Philharmoniker
by artist: Mirella Freni
by artist: Gianni Schicchi
by artist: Giacomo Puccini
by artist: Leone Magiera
in album: Opera-Highlights
  type: MusicAlbum
  date published: 2010-02-09
genre: opera
genre: canzone-napoletana
isrc code: USA371010863
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:17:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x437126c60b7109a8961a614327f8f20a17a6480010ce2349514da238f6c96b10
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/USA371010863
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 0x437126c60b7109a8961a614327f8f20a17a6480010ce2349514da238f6c96b10. 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/USA371010863.
  date published: 2026-07-08T03:20:19Z
audio: Lauretta mia
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.066
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.237
  additional property: Energy
    type: PropertyValue
    value: 0.268
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.055
  additional property: Liveness
    type: PropertyValue
    value: 0.179
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.092
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.381
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Libiamo, libiamo
type: MusicRecording
duration: PT3M8S
duration ms: 188264
explicit: false
by artist: Franco Bonisolli
by artist: Giuseppe Verdi
by artist: Staatskapelle Berlin
by artist: La Traviata
by artist: Lamberto Gardelli
in album: Opera-Highlights
  type: MusicAlbum
  date published: 2010-02-09
genre: opera
genre: canzone-napoletana
isrc code: USA371010865
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T20:00:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x91791354cae4a99dfaa3de7cde7cc786a4fe4d08257c707e4021b68c51dd62c7
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/USA371010865
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 0x91791354cae4a99dfaa3de7cde7cc786a4fe4d08257c707e4021b68c51dd62c7. 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/USA371010865.
  date published: 2026-07-02T03:55:08Z
audio: Libiamo, libiamo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.599
  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: 0.394
  additional property: Energy
    type: PropertyValue
    value: 0.241
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.103
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.239
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.928
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

E´strano...Sempre libera
type: MusicRecording
duration: PT9M28S
duration ms: 568825
explicit: false
by artist: Franco Bonisolli
by artist: Giuseppe Verdi
by artist: Staatskapelle Berlin
by artist: Mirella Freni
by artist: La Traviata
by artist: Lamberto Gardelli
in album: Opera-Highlights
  type: MusicAlbum
  date published: 2010-02-09
genre: opera
genre: canzone-napoletana
isrc code: USA371010866
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T19:18:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf021880f19ec53f528c708175062cadd528d1ab162abdc01c30dcc5b0ec58527
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/USA371010866
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 0xf021880f19ec53f528c708175062cadd528d1ab162abdc01c30dcc5b0ec58527. 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/USA371010866.
  date published: 2026-07-08T03:20:19Z
audio: E´strano...Sempre libera
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.72
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.325
  additional property: Energy
    type: PropertyValue
    value: 0.16
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.165
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.047
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.553
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Celeste Aida
type: MusicRecording
duration: PT4M55S
duration ms: 295999
explicit: false
by artist: Franco Bonisolli
by artist: Giuseppe Verdi
by artist: Aida
by artist: Hamburger Philharmoniker
by artist: Leone Magiera
in album: Opera-Highlights
  type: MusicAlbum
  date published: 2010-02-09
genre: opera
genre: canzone-napoletana
isrc code: USA371010867
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T07:28:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbb224f8f246cb6f77b98b4e0b5ad591188cdaf3e7cdb54761ab251b632739968
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371010867
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41Z
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 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 0xbb224f8f246cb6f77b98b4e0b5ad591188cdaf3e7cdb54761ab251b632739968. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371010867.
  date published: 2026-07-31T08:26:41Z
audio: Celeste Aida
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.288
  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: 0.302
  additional property: Energy
    type: PropertyValue
    value: 0.312
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.055
  additional property: Liveness
    type: PropertyValue
    value: 0.127
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.08
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.307
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

La donna è mobile
type: MusicRecording
duration: PT2M9S
duration ms: 129506
explicit: false
by artist: Franco Bonisolli
by artist: Staatskapelle Dresden
by artist: Giuseppe Verdi
by artist: Rigoletto
by artist: Molinari Pradelli
in album: Opera-Highlights
  type: MusicAlbum
  date published: 2010-02-09
genre: opera
genre: canzone-napoletana
isrc code: USA371010868
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T19:59:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc10b6adaf5be7dba8b30a14fc1d85a5912fcd3397cc4d5999e69170650783d20
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/USA371010868
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 0xc10b6adaf5be7dba8b30a14fc1d85a5912fcd3397cc4d5999e69170650783d20. 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/USA371010868.
  date published: 2026-07-02T03:55:08Z
audio: La donna è mobile
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.09
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.474
  additional property: Energy
    type: PropertyValue
    value: 0.195
  additional property: Speechiness
    type: PropertyValue
    value: 0.063
  additional property: Acousticness
    type: PropertyValue
    value: 0.963
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.015
  additional property: Liveness
    type: PropertyValue
    value: 0.283
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.283
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.084
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mi chiamano Mimi
type: MusicRecording
duration: PT5M4S
duration ms: 304384
explicit: false
by artist: La Bohème
by artist: Mirella Freni
by artist: Hamburger Philharmoniker
by artist: Giacomo Puccini
by artist: Leone Magiera
in album: Opera-Highlights
  type: MusicAlbum
  date published: 2010-02-09
isrc code: USA371010869
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T04:37:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa16a0ec90462bf8cb943ae420887735d3e0ecc5958a404603a194f6a3d31be93
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960348
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960348
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371010869
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T05:17:02Z
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 0xa16a0ec90462bf8cb943ae420887735d3e0ecc5958a404603a194f6a3d31be93. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USA371010869.
  date published: 2026-07-31T05:17:02Z
audio: Mi chiamano Mimi
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.167
  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: 0.189
  additional property: Energy
    type: PropertyValue
    value: 0.147
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.423
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.776
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Che gelida manina
type: MusicRecording
duration: PT4M34S
duration ms: 274851
explicit: false
by artist: Franco Bonisolli
by artist: Giacomo Puccini
by artist: Hamburger Philharmoniker
by artist: La Bohème
by artist: Leone Magiera
in album: Opera-Highlights
  type: MusicAlbum
  date published: 2010-02-09
genre: opera
genre: canzone-napoletana
isrc code: USA371010870
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:43:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe8d1f9b2582cbbe74f3714e60a7b4572cacbabb9796d04fbdf6b88edda474ff9
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/USA371010870
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 0xe8d1f9b2582cbbe74f3714e60a7b4572cacbabb9796d04fbdf6b88edda474ff9. 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/USA371010870.
  date published: 2026-07-08T03:20:19Z
audio: Che gelida manina
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.467
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.212
  additional property: Energy
    type: PropertyValue
    value: 0.231
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.081
  additional property: Liveness
    type: PropertyValue
    value: 0.119
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.108
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.529
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

O soave fanciulla
type: MusicRecording
duration: PT3M49S
duration ms: 229239
explicit: false
by artist: Franco Bonisolli, Mirella Freni
by artist: Giacomo Puccini
by artist: Hamburger Philharmoniker
by artist: La Bohème
by artist: Leone Magiera
in album: Opera-Highlights
  type: MusicAlbum
  date published: 2010-02-09
isrc code: USA371010871
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: 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/USA371010871
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f02f821242d14f946011f205cee7cbd1497383c04022df7360f2f19030ab595. 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/USA371010871.
  date published: 2026-07-08T03:20:19Z
audio: O soave fanciulla
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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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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Di quella pira
type: MusicRecording
duration: PT2M31S
duration ms: 151370
explicit: false
by artist: Franco Bonisolli
by artist: Giuseppe Verdi
by artist: Hamburger Philharmoniker
by artist: Il Trovatore
by artist: Leone Magiera
in album: Opera-Highlights
  type: MusicAlbum
  date published: 2010-02-09
genre: opera
genre: canzone-napoletana
isrc code: USA371010876
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x80035d2a8cf2dc30afe80195cdcb586306270e3433b9910738090030d8c901fc
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960468
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371010876
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T21:25:57Z
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 0x80035d2a8cf2dc30afe80195cdcb586306270e3433b9910738090030d8c901fc. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USA371010876.
  date published: 2026-07-31T21:25:57Z
audio: Di quella pira
  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
    value: 0.421
  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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Bacarole
type: MusicRecording
duration: PT2M40S
duration ms: 160000
explicit: false
by artist: Franco Bonisolli
by artist: Offenbach
by artist: Agnieszka Bonisolli
by artist: Bamberg Symphony
by artist: Nottt
in album: Opera-Highlights
  type: MusicAlbum
  date published: 2010-02-09
genre: opera
genre: canzone-napoletana
isrc code: USA371010886
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:48:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2eef89162e415005331b9d4a89b5b57afaceb1c5bae54cfdfebeb6b948b85c95
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: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371010886
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
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 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 0x2eef89162e415005331b9d4a89b5b57afaceb1c5bae54cfdfebeb6b948b85c95. 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/USA371010886.
  date published: 2026-07-31T12:24:41Z
audio: Bacarole
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.09
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.228
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.856
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.145
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.906
  additional property: Key Name
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    value: D
  additional property: Mode Name
    type: PropertyValue
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Verdi: I masnadieri
type: MusicAlbum
date published: 1983-04-01
track: I masnadieri, Act I: Overture (Prelude)
  type: MusicRecording
  duration: PT5M29S
  duration ms: 329926
  explicit: false
  by artist: Giuseppe Verdi
  by artist: Welsh National Opera Orchestra
  by artist: Richard Bonynge
  in album: Verdi: I masnadieri
    type: MusicAlbum
    date published: 1983-04-01
  genre: classical
  genre: opera
  isrc code: GBF078240801
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T23:12:59+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcbd7332cbf5e8bdef91de93be51448d225b8dd7b2eabf1d2aa87850e8d46efe8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960478
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960478
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078240801
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T23:30:38Z
  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 0xcbd7332cbf5e8bdef91de93be51448d225b8dd7b2eabf1d2aa87850e8d46efe8. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBF078240801.
    date published: 2026-07-31T23:30:38Z
  audio: I masnadieri, Act I: Overture (Prelude)
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 122.029
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
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      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.16
    additional property: Energy
      type: PropertyValue
      value: 0.009
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    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
      value: 0.04
    additional property: Loudness (dB)
      type: PropertyValue
      value: -33.99
    additional property: Key Name
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      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Nessun dorma, Vol. 4
type: MusicAlbum
date published: 2013-07-09

100 x Verdi, den man gehört haben muss
type: MusicAlbum
date published: 2010

Opera Rarities
type: MusicAlbum
date published: 2021-02-05

Tenor Arias - Concerto di Tenori
type: MusicAlbum
date published: 1999-01-04
track: Carmen: Overture
  type: MusicRecording
  duration: PT3M44S
  duration ms: 224826
  explicit: false
  by artist: Georges Bizet
  in album: Tenor Arias - Concerto di Tenori
    type: MusicAlbum
    date published: 1999-01-04
  genre: classical
  genre: opera
  isrc code: ITS049700138
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-07-30T17:43:56+00:00
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0xd8a52f9f3826e1be0c4d945e19f5fba062f02107891ca2c3c02a78c06928048c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960291
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960291
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS049700138
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T18:23:33Z
  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 0xd8a52f9f3826e1be0c4d945e19f5fba062f02107891ca2c3c02a78c06928048c. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/ITS049700138.
    date published: 2026-07-30T18:23:33Z
  audio: Carmen: Overture
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.824
    additional property: Musical Key
      type: PropertyValue
      value: 2
    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: 0.464
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.894
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.929
    additional property: Liveness
      type: PropertyValue
      value: 0.94
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.545
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.369
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Verdi: Rigoletto
type: MusicAlbum
date published: 1997-09-22

Una furtiva lagrima: Scena VII, Atto II, L'elisir d'amore
type: MusicAlbum
date published: 2010-10-05
track: Che gelida manina ! : Atto I, La bohème
  type: MusicRecording
  duration: PT4M20S
  duration ms: 260339
  explicit: false
  by artist: Salvatore Fisichella
  by artist: Orchestra Dell' Arena Di Verona
  in album: Una furtiva lagrima: Scena VII, Atto II, L'elisir d'amore
    type: MusicAlbum
    date published: 2010-10-05
  genre: opera
  isrc code: ITS049700145
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T09:37:47+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xce4eded4a928133b568ecd72c9db759e6ca4d40721bea7da05f4f01a2628d8f2
  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/ITS049700145
  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 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 0xce4eded4a928133b568ecd72c9db759e6ca4d40721bea7da05f4f01a2628d8f2. 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/ITS049700145.
    date published: 2026-07-08T03:22:41Z
  audio: Che gelida manina ! : Atto I, La bohème
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 109.286
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.256
    additional property: Energy
      type: PropertyValue
      value: 0.377
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.98
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.701
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.119
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.709
    additional property: Key Name
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    additional property: Mode Name
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Bizet, Gounod, Boito, Rossini, Verdi, Puccini: Concerto di Tenori
type: MusicAlbum
date published: 2002-12-06
track: Carmen: Ouverture: Carmen: Ouverture
  type: MusicRecording
  duration: PT3M37S
  duration ms: 217666
  explicit: false
  by artist: Orchestra and Chorus Arena di Verona
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    type: MusicAlbum
    date published: 2002-12-06
  isrc code: ITS049700138
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd8a52f9f3826e1be0c4d945e19f5fba062f02107891ca2c3c02a78c06928048c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960334
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960334
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS049700138
  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
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Opera Festival Collection
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Bel Canto
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Klassik für Jedermann: Galakonzert der Tenöre
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Giordano, U.: Andrea Chenier [Opera]
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ORFEO 40th Anniversary Edition: 40 Ultimate Recordings
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ORFEO 40th Anniversary Edition: Legendary Voices
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track: The Sleeping Beauty Suite, Op. 66a: IV. Panorama. Andantino
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track: The Nutcracker Suite, Op. 71a: IIa. March
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track: The Nutcracker Suite, Op. 71a: IIe. Chinese Dance (Tea)
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track: The Nutcracker Suite, Op. 71a: IIc. Russian Dance (Trepak)
track: The Nutcracker Suite, Op. 71a: IIf. Dance of the Reed-Pipes
track: The Nutcracker Suite, Op. 71a: IId. Arabian Dance (Coffee)
track: Variations on a Rococo Theme, Op. 33: Var. 1. Tempo della thema –
track: Variations on a Rococo Theme, Op. 33: Introduction. Moderato quasi andante
track: Variations on a Rococo Theme, Op. 33: Var. 2. Tempo della thema
track: Variations on a Rococo Theme, Op. 33: Var. 4. Andante grazioso –
track: Variations on a Rococo Theme, Op. 33: Var. 7 – Coda. Allegro vivo
track: Variations on a Rococo Theme, Op. 33: Var. 6. Andante
track: Variations on a Rococo Theme, Op. 33: Var. 3. Andante sostenuto
track: Romeo and Juliet, Ballet Suite, Op. 64a, No. 2: IV. Dance
track: Romeo and Juliet, Ballet Suite, Op. 64a, No. 2: VI. Dance of the Maids from the Antilles
track: Romeo and Juliet, Suite No. 1, Op. 64a: V. Masks
track: Romeo and Juliet, Suite No. 1, Op. 64a: II. Scene (The Street Awakens)
track: Kinderszenen, Op. 15 - Cello and Piano: Träumerei
track: Tosca, Act I: Gente là dentro!
track: Tosca, Act I: Tosca? Che non mi veda
track: Tosca, Act II: Ed or fra noi parliam da buoni amici
track: Tosca, Act II: Nel pozzo, nel giardino! – Floria ... Amore...
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track: Cello Concerto in C Major, RV 398: I. Allegro
track: Cello Concerto in A minor, Op. 129: 2. Langsam

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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: The Nutcracker Suite, Op. 71a: IIa. March
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The Nutcracker Suite, Op. 71a: IIb. Dance of the Sugar Plum Fairy
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by artist: Berliner Philharmoniker
by artist: Mstislav Rostropovich
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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: 2026-07-08T03:20:19Z
audio: The Nutcracker Suite, Op. 71a: IIb. Dance of the Sugar Plum Fairy
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The Nutcracker Suite, Op. 71a: IIe. Chinese Dance (Tea)
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by artist: Pyotr Ilyich Tchaikovsky
by artist: Berliner Philharmoniker
by artist: Mstislav Rostropovich
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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: 2026-07-08T03:20:19Z
audio: The Nutcracker Suite, Op. 71a: IIe. Chinese Dance (Tea)
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The Nutcracker Suite, Op. 71a (Arr. Economou for 2 Pianos): IIa. March
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by artist: Martha Argerich
by artist: Nicolas Economou
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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: 2026-07-08T03:20:19Z
audio: The Nutcracker Suite, Op. 71a (Arr. Economou for 2 Pianos): IIa. March
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The Nutcracker Suite, Op. 71a: IIc. Russian Dance (Trepak)
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duration: PT1M10S
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explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Berliner Philharmoniker
by artist: Mstislav Rostropovich
in album: Rostropovich - Great Works
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  date published: 2025-03-06
isrc code: DEF057801285
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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: The Nutcracker Suite, Op. 71a: IIc. Russian Dance (Trepak)
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The Nutcracker Suite, Op. 71a: IIf. Dance of the Reed-Pipes
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by artist: Pyotr Ilyich Tchaikovsky
by artist: Berliner Philharmoniker
by artist: Mstislav Rostropovich
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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: The Nutcracker Suite, Op. 71a: IIf. Dance of the Reed-Pipes
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The Nutcracker Suite, Op. 71a: IId. Arabian Dance (Coffee)
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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: The Nutcracker Suite, Op. 71a: IId. Arabian Dance (Coffee)
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Variations on a Rococo Theme, Op. 33: Var. 1. Tempo della thema –
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by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
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additional property: CopyrightRegisteredAt
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  value: 2026-06-11T12:18:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x289e13e53f184cec20f8d62c0a6b7265da191f84ec14dea3c160e435714853e9
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/DEF056800363
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 0x289e13e53f184cec20f8d62c0a6b7265da191f84ec14dea3c160e435714853e9. 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/DEF056800363.
  date published: 2026-07-08T03:20:19Z
audio: Variations on a Rococo Theme, Op. 33: Var. 1. Tempo della thema –
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.689
  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: 0.358
  additional property: Energy
    type: PropertyValue
    value: 0.073
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.835
  additional property: Liveness
    type: PropertyValue
    value: 0.439
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.498
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.156
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Variations on a Rococo Theme, Op. 33: Introduction. Moderato quasi andante
type: MusicRecording
duration: PT0M54S
duration ms: 54333
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Mstislav Rostropovich
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Rostropovich - Great Works
  type: MusicAlbum
  date published: 2025-03-06
isrc code: DEF056800361
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T12:20:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5ff0ae2b38d6d185616ed50cc096903dbe4ea40aebc3c927b3f0e137ae9249ce
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/DEF056800361
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 0x5ff0ae2b38d6d185616ed50cc096903dbe4ea40aebc3c927b3f0e137ae9249ce. 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/DEF056800361.
  date published: 2026-07-08T03:20:19Z
audio: Variations on a Rococo Theme, Op. 33: Introduction. Moderato quasi andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 87.359
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.376
  additional property: Energy
    type: PropertyValue
    value: 0.006
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.646
  additional property: Liveness
    type: PropertyValue
    value: 0.17
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.308
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.021
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Variations on a Rococo Theme, Op. 33: Var. 2. Tempo della thema
type: MusicRecording
duration: PT1M13S
duration ms: 73093
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Mstislav Rostropovich
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Rostropovich - Great Works
  type: MusicAlbum
  date published: 2025-03-06
isrc code: DEF056800364
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T09:38:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe9009526f2a3e0f0d8f96ab0fb38d06b55c18ce900bca73ee6e9e03759f85290
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/DEF056800364
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 0xe9009526f2a3e0f0d8f96ab0fb38d06b55c18ce900bca73ee6e9e03759f85290. 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/DEF056800364.
  date published: 2026-07-08T03:20:19Z
audio: Variations on a Rococo Theme, Op. 33: Var. 2. Tempo della thema
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.888
  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: 0.263
  additional property: Energy
    type: PropertyValue
    value: 0.067
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.934
  additional property: Liveness
    type: PropertyValue
    value: 0.112
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.202
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.102
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Variations on a Rococo Theme, Op. 33: Var. 4. Andante grazioso –
type: MusicRecording
duration: PT1M53S
duration ms: 113333
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Mstislav Rostropovich
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Rostropovich - Great Works
  type: MusicAlbum
  date published: 2025-03-06
isrc code: DEF056800366
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T14:20:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x238da7b98e0a7e079c47f29967b09ee319e34aaca3f232ce8b128c23124270ed
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/DEF056800366
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 0x238da7b98e0a7e079c47f29967b09ee319e34aaca3f232ce8b128c23124270ed. 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/DEF056800366.
  date published: 2026-07-08T03:20:19Z
audio: Variations on a Rococo Theme, Op. 33: Var. 4. Andante grazioso –
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.89
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.3
  additional property: Energy
    type: PropertyValue
    value: 0.038
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.129
  additional property: Liveness
    type: PropertyValue
    value: 0.199
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.289
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.75
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Variations on a Rococo Theme, Op. 33: Var. 7 – Coda. Allegro vivo
type: MusicRecording
duration: PT2M1S
duration ms: 121796
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Mstislav Rostropovich
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Rostropovich - Great Works
  type: MusicAlbum
  date published: 2025-03-06
isrc code: DEF056800369
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T02:56:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x251087db1b4f620361ba5f4c8b656d34c5606712b9b4daf00735411987b551d2
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/DEF056800369
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 0x251087db1b4f620361ba5f4c8b656d34c5606712b9b4daf00735411987b551d2. 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/DEF056800369.
  date published: 2026-07-08T03:20:19Z
audio: Variations on a Rococo Theme, Op. 33: Var. 7 – Coda. Allegro vivo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 162.575
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.341
  additional property: Energy
    type: PropertyValue
    value: 0.257
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.955
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.876
  additional property: Liveness
    type: PropertyValue
    value: 0.095
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.465
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.981
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Variations on a Rococo Theme, Op. 33: Var. 6. Andante
type: MusicRecording
duration: PT2M52S
duration ms: 172333
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Mstislav Rostropovich
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Rostropovich - Great Works
  type: MusicAlbum
  date published: 2025-03-06
isrc code: DEF056800368
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T18:51:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9d4e694794cdd7683d28b26004c49e5f7da5f1ffb3906a1028a8c36326981ba0
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/DEF056800368
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 0x9d4e694794cdd7683d28b26004c49e5f7da5f1ffb3906a1028a8c36326981ba0. 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/DEF056800368.
  date published: 2026-07-08T03:20:19Z
audio: Variations on a Rococo Theme, Op. 33: Var. 6. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.368
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.215
  additional property: Energy
    type: PropertyValue
    value: 0.027
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.949
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.397
  additional property: Liveness
    type: PropertyValue
    value: 0.12
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.033
  additional property: Loudness (dB)
    type: PropertyValue
    value: -34.178
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Variations on a Rococo Theme, Op. 33: Var. 3. Andante sostenuto
type: MusicRecording
duration: PT3M59S
duration ms: 239000
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Mstislav Rostropovich
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Rostropovich - Great Works
  type: MusicAlbum
  date published: 2025-03-06
isrc code: DEF056800365
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T06:04:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x84649b2cbfd47b5e353789a7da62416861b0de89705dcd2ef46a6f6dd85da2d5
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/DEF056800365
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 0x84649b2cbfd47b5e353789a7da62416861b0de89705dcd2ef46a6f6dd85da2d5. 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/DEF056800365.
  date published: 2026-07-08T03:20:19Z
audio: Variations on a Rococo Theme, Op. 33: Var. 3. Andante sostenuto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.458
  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: 0.131
  additional property: Energy
    type: PropertyValue
    value: 0.078
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
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Romeo and Juliet, Ballet Suite, Op. 64a, No. 2: IV. Dance
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by artist: National Symphony Orchestra Washington
by artist: Mstislav Rostropovich
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
audio: Romeo and Juliet, Ballet Suite, Op. 64a, No. 2: IV. Dance
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Romeo and Juliet, Ballet Suite, Op. 64a, No. 2: VI. Dance of the Maids from the Antilles
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by artist: National Symphony Orchestra Washington
by artist: Mstislav Rostropovich
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T02:19:15Z
audio: Romeo and Juliet, Ballet Suite, Op. 64a, No. 2: VI. Dance of the Maids from the Antilles
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Romeo and Juliet, Suite No. 1, Op. 64a: V. Masks
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by artist: National Symphony Orchestra Washington
by artist: Mstislav Rostropovich
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  date published: 2025-03-06
genre: classical
genre: orchestra
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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: Romeo and Juliet, Suite No. 1, Op. 64a: V. Masks
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Romeo and Juliet, Suite No. 1, Op. 64a: II. Scene (The Street Awakens)
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by artist: National Symphony Orchestra Washington
by artist: Mstislav Rostropovich
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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: Romeo and Juliet, Suite No. 1, Op. 64a: II. Scene (The Street Awakens)
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Kinderszenen, Op. 15 - Cello and Piano: Träumerei
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duration ms: 194786
explicit: false
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by artist: Mstislav Rostropovich
by artist: Alexander Dedyukhin
in album: Rostropovich - Great Works
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Kinderszenen, Op. 15 - Cello and Piano: Träumerei
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Tosca, Act I: Gente là dentro!
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by artist: Giacomo Puccini
by artist: Franco Bonisolli
by artist: Antonio Zerbini
by artist: Galina Vishnevskaya
by artist: Orchestre National De France
by artist: Mstislav Rostropovich
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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: Tosca, Act I: Gente là dentro!
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Tosca, Act I: Tosca? Che non mi veda
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by artist: Giacomo Puccini
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by artist: Guido Mazzini
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subject of: OpenTimestamps Proof of Existence
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Tosca, Act II: Ed or fra noi parliam da buoni amici
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Tosca, Act II: Nel pozzo, nel giardino! – Floria ... Amore...
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Cello Sonata in G Minor, Op. 65: III. Largo
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Cello Concerto in C Major, RV 398: I. Allegro
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Cello Concerto in A minor, Op. 129: 2. Langsam
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Verdi: Luisa Miller
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Rossini: L'Assedio Di Corinto
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Nessun dorma, Vol. 1
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Rostropovich - A Cellist Legend
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track: Cello Concerto in G Major, RV 413: III. Allegro
track: Cello Concerto in C Major, RV 398: I. Allegro
track: Variations on a Rococo Theme, Op. 33: Introduction. Moderato quasi andante
track: Variations on a Rococo Theme, Op. 33: Theme. Moderato semplice
track: Variations on a Rococo Theme, Op. 33: Var. 1. Tempo della thema –
track: Variations on a Rococo Theme, Op. 33: Var. 2. Tempo della thema
track: Variations on a Rococo Theme, Op. 33: Var. 4. Andante grazioso –
track: Variations on a Rococo Theme, Op. 33: Var. 6. Andante
track: Variations on a Rococo Theme, Op. 33: Var. 7 – Coda. Allegro vivo
track: Elfentanz, Op. 39
track: Moto perpetuo, Op. 11
track: The Nutcracker Suite, Op. 71a: IIa. March
track: The Nutcracker Suite, Op. 71a: IIb. Dance of the Sugar Plum Fairy
track: The Nutcracker Suite, Op. 71a: IIc. Russian Dance (Trepak)
track: The Nutcracker Suite, Op. 71a: IIe. Chinese Dance (Tea)
track: The Nutcracker Suite, Op. 71a: IIf. Dance of the Reed-Pipes
track: Cello Concerto No. 1 In A Minor, Op. 33: 1. Allegro non troppo
track: Cello Concerto No. 1 In A Minor, Op. 33: 2. Allegretto con moto
track: Cello Concerto in A minor, Op. 129: 2. Langsam
track: Goyescas (Opera): Intermezzo
track: Prince Igor / Act 1: No. 3 Dance Of The Polovtsian Maidens
track: Stimmungsbilder Op. 9: No. 2 An Einsamer Quelle
track: 5 Stücke im Volkston, Op. 102: 1. Vanitas vanitatum (Mit Humor)

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  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 0x289e13e53f184cec20f8d62c0a6b7265da191f84ec14dea3c160e435714853e9. 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/DEF056800363.
  date published: 2026-07-08T03:20:19Z
audio: Variations on a Rococo Theme, Op. 33: Var. 1. Tempo della thema –
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Variations on a Rococo Theme, Op. 33: Var. 2. Tempo della thema
type: MusicRecording
duration: PT1M13S
duration ms: 73093
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Mstislav Rostropovich
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Rostropovich - A Cellist Legend
  type: MusicAlbum
  date published: 2025-05-24
isrc code: DEF056800364
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T09:38:15+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xe9009526f2a3e0f0d8f96ab0fb38d06b55c18ce900bca73ee6e9e03759f85290
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/DEF056800364
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9009526f2a3e0f0d8f96ab0fb38d06b55c18ce900bca73ee6e9e03759f85290. 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/DEF056800364.
  date published: 2026-07-08T03:20:19Z
audio: Variations on a Rococo Theme, Op. 33: Var. 2. Tempo della thema
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  additional property: Loudness (dB)
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  additional property: Key Name
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    type: PropertyValue
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Variations on a Rococo Theme, Op. 33: Var. 4. Andante grazioso –
type: MusicRecording
duration: PT1M53S
duration ms: 113333
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Mstislav Rostropovich
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Rostropovich - A Cellist Legend
  type: MusicAlbum
  date published: 2025-05-24
isrc code: DEF056800366
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
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056800366
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 0x238da7b98e0a7e079c47f29967b09ee319e34aaca3f232ce8b128c23124270ed. 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/DEF056800366.
  date published: 2026-07-08T03:20:19Z
audio: Variations on a Rococo Theme, Op. 33: Var. 4. Andante grazioso –
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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: Speechiness
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  additional property: Acousticness
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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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Variations on a Rococo Theme, Op. 33: Var. 6. Andante
type: MusicRecording
duration: PT2M52S
duration ms: 172333
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Mstislav Rostropovich
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Rostropovich - A Cellist Legend
  type: MusicAlbum
  date published: 2025-05-24
isrc code: DEF056800368
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
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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/DEF056800368
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 0x9d4e694794cdd7683d28b26004c49e5f7da5f1ffb3906a1028a8c36326981ba0. 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/DEF056800368.
  date published: 2026-07-08T03:20:19Z
audio: Variations on a Rococo Theme, Op. 33: Var. 6. Andante
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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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
    type: PropertyValue
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Variations on a Rococo Theme, Op. 33: Var. 7 – Coda. Allegro vivo
type: MusicRecording
duration: PT2M1S
duration ms: 121796
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Mstislav Rostropovich
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Rostropovich - A Cellist Legend
  type: MusicAlbum
  date published: 2025-05-24
isrc code: DEF056800369
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
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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/DEF056800369
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 0x251087db1b4f620361ba5f4c8b656d34c5606712b9b4daf00735411987b551d2. 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/DEF056800369.
  date published: 2026-07-08T03:20:19Z
audio: Variations on a Rococo Theme, Op. 33: Var. 7 – Coda. Allegro vivo
  type: AudioObject
  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: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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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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Elfentanz, Op. 39
type: MusicRecording
duration: PT2M34S
duration ms: 154080
explicit: false
by artist: David Popper
by artist: Mstislav Rostropovich
by artist: Alexander Dedyukhin
in album: Rostropovich - A Cellist Legend
  type: MusicAlbum
  date published: 2025-05-24
genre: czech-classical
genre: post-romantic-era
isrc code: DEF055490206
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/DEF055490206
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T21:35:24Z
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8edae70eadcc2984de9f4aa913e9894ad0de80c86019a1cbf9fff6d3a4dedf. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055490206.
  date published: 2026-07-30T21:35:24Z
audio: Elfentanz, Op. 39
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 119.865
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.427
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  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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Moto perpetuo, Op. 11
type: MusicRecording
duration: PT3M13S
duration ms: 193866
explicit: false
by artist: Niccolò Paganini
by artist: Mstislav Rostropovich
by artist: Vladimir Yampolsky
in album: Rostropovich - A Cellist Legend
  type: MusicAlbum
  date published: 2025-05-24
isrc code: DEF055490203
additional property: CopyrightID
additional property: CopyrightStatus
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  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-07T16:09:45+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xfa06f32182c33c6300a9317b46e79166ccdd48d79d00b03796e2bb8e4e0b7ea2
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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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 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 0xfa06f32182c33c6300a9317b46e79166ccdd48d79d00b03796e2bb8e4e0b7ea2. 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/DEF055490203.
  date published: 2026-07-08T03:53:27Z
audio: Moto perpetuo, Op. 11
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 169.053
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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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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The Nutcracker Suite, Op. 71a: IIa. March
type: MusicRecording
duration: PT2M26S
duration ms: 146000
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Berliner Philharmoniker
by artist: Mstislav Rostropovich
in album: Rostropovich - A Cellist Legend
  type: MusicAlbum
  date published: 2025-05-24
isrc code: DEF057801283
additional property: CopyrightID
additional property: CopyrightStatus
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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: The Nutcracker Suite, Op. 71a: IIa. March
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The Nutcracker Suite, Op. 71a: IIb. Dance of the Sugar Plum Fairy
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by artist: Berliner Philharmoniker
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-09T02:31:37Z
audio: The Nutcracker Suite, Op. 71a: IIb. Dance of the Sugar Plum Fairy
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The Nutcracker Suite, Op. 71a: IIc. Russian Dance (Trepak)
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by artist: Berliner Philharmoniker
by artist: Mstislav Rostropovich
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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: The Nutcracker Suite, Op. 71a: IIc. Russian Dance (Trepak)
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The Nutcracker Suite, Op. 71a: IIe. Chinese Dance (Tea)
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by artist: Berliner Philharmoniker
by artist: Mstislav Rostropovich
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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: The Nutcracker Suite, Op. 71a: IIe. Chinese Dance (Tea)
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The Nutcracker Suite, Op. 71a: IIf. Dance of the Reed-Pipes
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duration: PT2M35S
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by artist: Berliner Philharmoniker
by artist: Mstislav Rostropovich
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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: The Nutcracker Suite, Op. 71a: IIf. Dance of the Reed-Pipes
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Cello Concerto No. 1 In A Minor, Op. 33: 1. Allegro non troppo
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duration: PT5M53S
duration ms: 353586
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by artist: Camille Saint-Saëns
by artist: Mstislav Rostropovich
by artist: Symphony Orchestra of the All Union Radio
by artist: Gregory Stolyarov
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genre: classical
genre: late-romantic-era
genre: french-romanticism
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
audio: Cello Concerto No. 1 In A Minor, Op. 33: 1. Allegro non troppo
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Cello Concerto No. 1 In A Minor, Op. 33: 2. Allegretto con moto
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by artist: Symphony Orchestra of the All Union Radio
by artist: Gregory Stolyarov
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Cello Concerto No. 1 In A Minor, Op. 33: 2. Allegretto con moto
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Cello Concerto in A minor, Op. 129: 2. Langsam
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Goyescas (Opera): Intermezzo
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Prince Igor / Act 1: No. 3 Dance Of The Polovtsian Maidens
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Stimmungsbilder Op. 9: No. 2 An Einsamer Quelle
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5 Stücke im Volkston, Op. 102: 1. Vanitas vanitatum (Mit Humor)
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Puccini: Tosca
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Leoncavallo: Il Pagliacci - Mascagni: Cavalleria Rusticana
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Verdi: La Traviata
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Nessun dorma, Vol. 3
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Benvenuto Cellini
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