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genre: opera
description: Stoyanka Savova Nikolova (), best known by her stage name Elena Nicolai () (24 January 1905 – 24 October 1993), was a Bulgarian operatic mezzo-soprano. Early life and training thumb|Elena Nicolai (
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followers: 134
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subject of: OpenTimestamps Proof of Existence
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album: Verdi: Aida (Excerpts)
  type: MusicAlbum
  date published: 2013-11-01
album: Mario Del Monaco: His First Classical London Records of Pagliacci & Cavalleria Rusticana
  type: MusicAlbum
  date published: 2006-01-01
album: Récital Mario Del Monaco - Mascagni: Cavalleria rusticana (Mono Version)
  type: MusicAlbum
  date published: 1954-01-01
album: Mascagni: Cavalleria rusticana, extraits (Mono Version)
  type: MusicAlbum
  date published: 1958-01-01
album: Great Opera [La Forza Del Destino (Historic Complete Recording)]
  type: MusicAlbum
  date published: 2011-12-06
album: Verdi: Don Carlo (Christoff, Filippeschi, Gobbi) (1954)
  type: MusicAlbum
  date published: 2006-12-12
album: Verdi: La Forza del Destino
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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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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:20:19Z
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  track: La Forza del Destino (1997 - Remaster), Act I: Temea restasse qui fino a domani
  track: La Forza del Destino (1997 - Remaster), Act I: Me, pellegrina ed orfana
  track: Verdi: La forza del destino, Act 4 Scene 6: No. 17, Melodia, "Pace, pace, mio Dio!" (Leonora)
  track: La Forza del Destino (1997 - Remaster), Act I: Ah, per sempre, o mio bell'angiol
  track: La Forza del Destino (1997 - Remaster), Act I: Vil seduttor! Infame figlia!
  track: La Forza del Destino (1997 - Remaster), Act II: Hola, hola, hola! Ben giungi, o mulattier
  track: La Forza del Destino (1997 - Remaster), Act II: Che vedo! Mio fratello!
  track: La Forza del Destino (1997 - Remaster), Act II: Al suon del tamburo
  track: La Forza del Destino (1997 - Remaster), Act II: Padre Eterno Signor
  track: La Forza del Destino (1997 - Remaster), Act II: Sono giunta! Grazie o Dio!
  track: La Forza del Destino (1997 - Remaster), Act II: Madre, pietosa Vergine
  track: Verdi: La forza del destino, Act 2 Scene 10: Finale, "La Vergine degli Angeli" (Leonora, Padre Guardiano, Frati)
album: Verdi : Don Carlos
album: Verdi: La forza del destino (1954 - Serafin) - Callas Remastered
album: Verdi: Forza Del Destino (La) (Callas, Tucker, Serafin) (1954)
album: Grandi Voci – Mario del Monaco canta Puccini e il verismo - Una collana con registrazioni originali Decca e Deutsche Grammophon rimasterizzate con le tecniche più moderne che ne garantiscono
album: Gluck - Monteverdi - Brahms: Selected works
album: Verdi - Gluck - Saint-Saëns: Selected Works
album: Mascagni: Cavalleria Rusticana / Leoncavallo: Pagliacci
album: Verdi Historical Opera Edition, Vol. 1: Oberto, Giorno di Regno & Nabucco
album: Mascagni & Verdi: Chœurs d'opéras (Mono Version)
album: Don Carlos, Verdi, Grandes Óperas
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T18:48:12Z
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
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Verdi: La forza del destino, Act 4 Scene 6: No. 17, Melodia, "Pace, pace, mio Dio!" (Leonora)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T21:09:47Z
audio: Verdi: La forza del destino, Act 4 Scene 6: No. 17, Melodia, "Pace, pace, mio Dio!" (Leonora)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.351
  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: 0.217
  additional property: Energy
    type: PropertyValue
    value: 0.044
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.006
  additional property: Liveness
    type: PropertyValue
    value: 0.133
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.061
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.094
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

La Forza del Destino (1997 - Remaster), Act I: Ah, per sempre, o mio bell'angiol
type: MusicRecording
duration: PT7M13S
duration ms: 433173
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Richard Tucker
by artist: Rina Cavallari
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala Di Milan
in album: Verdi: La Forza del Destino
  type: MusicAlbum
  date published: 1955
genre: classical
genre: opera
isrc code: GBAYC9702603
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:52:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x893ca7346e0204f99b528af10cdca123835f0ef03a2587ce46b3ef399232b91b
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/GBAYC9702603
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 0x893ca7346e0204f99b528af10cdca123835f0ef03a2587ce46b3ef399232b91b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702603 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: La Forza del Destino (1997 - Remaster), Act I: Ah, per sempre, o mio bell'angiol
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.501
  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: 0.401
  additional property: Energy
    type: PropertyValue
    value: 0.146
  additional property: Speechiness
    type: PropertyValue
    value: 0.078
  additional property: Acousticness
    type: PropertyValue
    value: 0.971
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.355
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.195
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.927
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

La Forza del Destino (1997 - Remaster), Act I: Vil seduttor! Infame figlia!
type: MusicRecording
duration: PT2M5S
duration ms: 125893
explicit: false
by artist: Giuseppe Verdi
by artist: Plinio Clabassi
by artist: Maria Callas
by artist: Richard Tucker
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala Di Milan
in album: Verdi: La Forza del Destino
  type: MusicAlbum
  date published: 1955
genre: classical
genre: opera
isrc code: GBAYC9702604
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T14:14:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c85edc018baf53037178e3bec9771a9e4192796ba2ea1a5984d5fb1f9cfeb2d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702604
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c85edc018baf53037178e3bec9771a9e4192796ba2ea1a5984d5fb1f9cfeb2d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702604 — a six-check JSON result.
  date published: 2026-07-31T15:20:15Z
audio: La Forza del Destino (1997 - Remaster), Act I: Vil seduttor! Infame figlia!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.133
  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: 0.385
  additional property: Energy
    type: PropertyValue
    value: 0.246
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.008
  additional property: Liveness
    type: PropertyValue
    value: 0.218
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.388
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.874
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

La Forza del Destino (1997 - Remaster), Act II: Hola, hola, hola! Ben giungi, o mulattier
type: MusicRecording
duration: PT1M20S
duration ms: 80306
explicit: false
by artist: Giuseppe Verdi
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala Di Milan
in album: Verdi: La Forza del Destino
  type: MusicAlbum
  date published: 1955
genre: classical
genre: opera
isrc code: GBAYC9702606
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T21:57:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x121d31d00f9ca0f8c8ffefd22ba5e79b76287deb3e778b9f811d28ae0e8c2531
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960473
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960473
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702606
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T22:27:44Z
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 0x121d31d00f9ca0f8c8ffefd22ba5e79b76287deb3e778b9f811d28ae0e8c2531. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702606 — a six-check JSON result.
  date published: 2026-07-31T22:27:44Z
audio: La Forza del Destino (1997 - Remaster), Act II: Hola, hola, hola! Ben giungi, o mulattier
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.484
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.5
  additional property: Energy
    type: PropertyValue
    value: 0.192
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.955
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.863
  additional property: Liveness
    type: PropertyValue
    value: 0.391
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.578
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.275
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

La Forza del Destino (1997 - Remaster), Act II: Che vedo! Mio fratello!
type: MusicRecording
duration: PT0M34S
duration ms: 34160
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Carlo Tagliabue
by artist: Gino Del Signore
by artist: Dario Caselli
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala Di Milan
in album: Verdi: La Forza del Destino
  type: MusicAlbum
  date published: 1955
genre: classical
genre: opera
isrc code: GBAYC9702608
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T18:58:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x158a198628c6477fc71045b69de6e1a98ebe0d7a26199ab8316038d3f65bbcf7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960455
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960455
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702608
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13Z
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 0x158a198628c6477fc71045b69de6e1a98ebe0d7a26199ab8316038d3f65bbcf7. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702608 — a six-check JSON result.
  date published: 2026-07-31T19:53:13Z
audio: La Forza del Destino (1997 - Remaster), Act II: Che vedo! Mio fratello!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.974
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.548
  additional property: Energy
    type: PropertyValue
    value: 0.274
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.94
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.014
  additional property: Liveness
    type: PropertyValue
    value: 0.903
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.867
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.257
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

La Forza del Destino (1997 - Remaster), Act II: Al suon del tamburo
type: MusicRecording
duration: PT2M44S
duration ms: 164773
explicit: false
by artist: Giuseppe Verdi
by artist: Carlo Tagliabue
by artist: Elena Nicolai
by artist: Dario Caselli
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala Di Milan
in album: Verdi: La Forza del Destino
  type: MusicAlbum
  date published: 1955
genre: classical
genre: opera
isrc code: GBAYC9702610
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:13:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe73fa39cbc94ce33a5b334ff9b67fbdc60bf7c798dd2e2d288fd3bdb3e017000
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/GBAYC9702610
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 0xe73fa39cbc94ce33a5b334ff9b67fbdc60bf7c798dd2e2d288fd3bdb3e017000. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702610 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: La Forza del Destino (1997 - Remaster), Act II: Al suon del tamburo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.136
  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: 0.418
  additional property: Energy
    type: PropertyValue
    value: 0.214
  additional property: Speechiness
    type: PropertyValue
    value: 0.203
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.226
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.149
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.699
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

La Forza del Destino (1997 - Remaster), Act II: Padre Eterno Signor
type: MusicRecording
duration: PT3M47S
duration ms: 227893
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Carlo Tagliabue
by artist: Dario Caselli
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala Di Milan
in album: Verdi: La Forza del Destino
  type: MusicAlbum
  date published: 1955
genre: classical
genre: opera
isrc code: GBAYC9702611
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:35:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb320f1c1adea7a83bbde5e3cf96df9f285307a3543241fe4c8479c998e4b9a8f
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/GBAYC9702611
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 0xb320f1c1adea7a83bbde5e3cf96df9f285307a3543241fe4c8479c998e4b9a8f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702611 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: La Forza del Destino (1997 - Remaster), Act II: Padre Eterno Signor
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.231
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.235
  additional property: Energy
    type: PropertyValue
    value: 0.195
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.209
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.069
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.863
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

La Forza del Destino (1997 - Remaster), Act II: Sono giunta! Grazie o Dio!
type: MusicRecording
duration: PT1M40S
duration ms: 100733
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala Di Milan
in album: Verdi: La Forza del Destino
  type: MusicAlbum
  date published: 1955
genre: classical
genre: opera
isrc code: GBAYC9702616
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:24:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5d9ffd16d0bb25b7ffc945d85893c036d0182efdad4e735684da231063aa07d2
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/GBAYC9702616
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 0x5d9ffd16d0bb25b7ffc945d85893c036d0182efdad4e735684da231063aa07d2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702616 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: La Forza del Destino (1997 - Remaster), Act II: Sono giunta! Grazie o Dio!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.551
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.442
  additional property: Energy
    type: PropertyValue
    value: 0.064
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.967
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.178
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.16
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.948
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

La Forza del Destino (1997 - Remaster), Act II: Madre, pietosa Vergine
type: MusicRecording
duration: PT5M11S
duration ms: 311200
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala Di Milan
in album: Verdi: La Forza del Destino
  type: MusicAlbum
  date published: 1955
genre: classical
genre: opera
isrc code: GBAYC9702617
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T15:18:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa83d8e094d65a826b290c393422e688c08f1ca7e653d4b35aef98b3d5421b62
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960273
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960273
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702617
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T15:42:38Z
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 0xfa83d8e094d65a826b290c393422e688c08f1ca7e653d4b35aef98b3d5421b62. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702617 — a six-check JSON result.
  date published: 2026-07-30T15:42:38Z
audio: La Forza del Destino (1997 - Remaster), Act II: Madre, pietosa Vergine
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.714
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.24
  additional property: Energy
    type: PropertyValue
    value: 0.137
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.956
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.102
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.048
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.202
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: La forza del destino, Act 2 Scene 10: Finale, "La Vergine degli Angeli" (Leonora, Padre Guardiano, Frati)
type: MusicRecording
duration: PT3M41S
duration ms: 221293
explicit: false
by artist: Giuseppe Verdi
by artist: Renato Capecchi
by artist: Nicola Rossi-Lemeni
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala Di Milan
in album: Verdi: La Forza del Destino
  type: MusicAlbum
  date published: 1955
genre: classical
genre: opera
isrc code: GBAYC9702622
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T08:26:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0ff0ae0b3b5e7de5a5956d29b196a73e4092d5c1e0803077a36695fe8d2a8348
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957819
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957819
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702622
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-13T07:53:33Z
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 0x0ff0ae0b3b5e7de5a5956d29b196a73e4092d5c1e0803077a36695fe8d2a8348. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702622 — a six-check JSON result.
  date published: 2026-07-13T07:53:33Z
audio: Verdi: La forza del destino, Act 2 Scene 10: Finale, "La Vergine degli Angeli" (Leonora, Padre Guardiano, Frati)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.861
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.133
  additional property: Energy
    type: PropertyValue
    value: 0.027
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.955
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.043
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.78
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi : Don Carlos
type: MusicAlbum
date published: 2001-01-09

Verdi: La forza del destino (1954 - Serafin) - Callas Remastered
type: MusicAlbum
date published: 1955
track: Verdi: La forza del destino: Sinfonia
  type: MusicRecording
  duration: PT7M33S
  duration ms: 453660
  explicit: false
  by artist: Giuseppe Verdi
  by artist: Tullio Serafin
  by artist: Orchestra Del Teatro Alla Scala, Milano
  in album: Verdi: La forza del destino (1954 - Serafin) - Callas Remastered
    type: MusicAlbum
    date published: 1955
  genre: classical
  genre: opera
  isrc code: GBAYC1400430
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T01:11:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe8da765accce4f5baf13956f790b00cd02d5de1c7e59f5cd3dbccb6c44df1dd7
  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/GBAYC1400430
  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 0xe8da765accce4f5baf13956f790b00cd02d5de1c7e59f5cd3dbccb6c44df1dd7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400430 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Verdi: La forza del destino: Sinfonia
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 99.738
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.177
    additional property: Energy
      type: PropertyValue
      value: 0.223
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.903
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.851
    additional property: Liveness
      type: PropertyValue
      value: 0.085
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.219
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.559
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Verdi: Forza Del Destino (La) (Callas, Tucker, Serafin) (1954)
type: MusicAlbum
date published: 1954
track: La forza del destino: Act II Scene 2: La Vergine degli Angeli (Chorus, Leonora)
  type: MusicRecording
  duration: PT3M39S
  duration ms: 219920
  explicit: false
  by artist: Giuseppe Verdi
  by artist: Maria Callas
  by artist: Richard Tucker
  by artist: Carlo Tagliabue
  by artist: Elena Nicolai
  by artist: Nicola Rossi-Lemeni
  by artist: Renato Capecchi
  by artist: Plinio Clabassi
  by artist: Rina Cavallari
  by artist: Gino Del Signore
  by artist: Dario Caselli
  by artist: Giulio Scarinci
  by artist: Ottorino Bagalli
  by artist: Milan La Scala Chorus
  by artist: Orchestra Del Teatro Alla Scala, Milano
  by artist: Tullio Serafin
  in album: Verdi: Forza Del Destino (La) (Callas, Tucker, Serafin) (1954)
    type: MusicAlbum
    date published: 1954
  genre: classical
  genre: opera
  isrc code: HKI190779122
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T07:02:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x846c50c2a0bd105adb12c8d72c0b84efca4333e797701cb71400c276dba94b54
  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/HKI190779122
  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 0x846c50c2a0bd105adb12c8d72c0b84efca4333e797701cb71400c276dba94b54. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190779122 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: La forza del destino: Act II Scene 2: La Vergine degli Angeli (Chorus, Leonora)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 102.085
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.078
    additional property: Energy
      type: PropertyValue
      value: 0.031
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.984
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.941
    additional property: Liveness
      type: PropertyValue
      value: 0.143
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.078
    additional property: Loudness (dB)
      type: PropertyValue
      value: -32.97
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Grandi Voci – Mario del Monaco canta Puccini e il verismo - Una collana con registrazioni originali Decca e Deutsche Grammophon rimasterizzate con le tecniche più moderne che ne garantiscono
type: MusicAlbum
date published: 2021-04-27
track: Turandot / Act 3: "Nessun dorma!"
  type: MusicRecording
  duration: PT3M3S
  duration ms: 183920
  explicit: false
  by artist: Giacomo Puccini
  by artist: Mario del Monaco
  by artist: Orchestra
  by artist: Franco Ghione
  in album: Grandi Voci – Mario del Monaco canta Puccini e il verismo - Una collana con registrazioni originali Decca e Deutsche Grammophon rimasterizzate con le tecniche più moderne che ne garantiscono
    type: MusicAlbum
    date published: 2021-04-27
  isrc code: GBF075411460
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T11:57:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x681b90699fe201b4a065a52f0b6b1a4ae14f70fb8371729ba3a104b682a667ec
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960258
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960258
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075411460
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T12:45:34Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681b90699fe201b4a065a52f0b6b1a4ae14f70fb8371729ba3a104b682a667ec. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075411460 — a six-check JSON result.
    date published: 2026-07-30T12:45:34Z
  audio: Turandot / Act 3: "Nessun dorma!"
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 109.367
    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: 0.194
    additional property: Energy
      type: PropertyValue
      value: 0.273
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.955
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.021
    additional property: Liveness
      type: PropertyValue
      value: 0.081
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.118
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.296
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
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track: La Bohème / Act 1: "Che gelida manina"
  type: MusicRecording
  duration: PT4M22S
  duration ms: 262000
  explicit: false
  by artist: Giacomo Puccini
  by artist: Mario del Monaco
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Madama Butterfly / Act 2: "Addio fiorito asil"
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Gluck - Monteverdi - Brahms: Selected works
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Verdi - Gluck - Saint-Saëns: Selected Works
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Mascagni: Cavalleria Rusticana / Leoncavallo: Pagliacci
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Verdi Historical Opera Edition, Vol. 1: Oberto, Giorno di Regno & Nabucco
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Mascagni & Verdi: Chœurs d'opéras (Mono Version)
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Don Carlos, Verdi, Grandes Óperas
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Giuseppe Verdi: Don Carlo
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