Adriana Lazzarini
type: MusicGroup
genre: opera
popularity: 16
followers: 61
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 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. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-14T11:37:06Z
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album: Verdi: Rigoletto
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  date published: 2023-02-10
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    by artist: Tullio Serafin
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      date published: 2023-02-10
    genre: classical
    genre: opera
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    additional property: OTSTimestamp
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    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2131411c0e0d492c2f61865df4a8cb092269791d3c33a75e79508d5b0f4650b6. 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/GBAYC1400699.
      date published: 2026-07-08T03:22:41Z
    audio: Verdi: Rigoletto, Act 1: Preludio
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  track: Verdi: Rigoletto, Act 1: "Questa o quella" (Duca)
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    by artist: Giuseppe Di Stefano
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    additional property: OTSVerifyInstructions
      type: PropertyValue
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    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      date published: 2026-07-08T03:22:41Z
    audio: Verdi: Rigoletto, Act 1: "Questa o quella" (Duca)
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  track: Verdi: Rigoletto, Act 1: "In testa che avete" (Rigoletto, Borsa, Coro)
  track: Verdi: Rigoletto, Act 1: "Quel vecchio maledivami!" (Rigoletto, Sparafucile)
  track: Verdi: Rigoletto, Act 1: "Pari siamo!" (Rigoletto)
  track: Verdi: Rigoletto, Act 1: "Figlia!" - "Mio padre!" (Rigoletto, Gilda, Giovanna)
  track: Verdi: Rigoletto, Act 1: "Ah, veglia, o donna" (Rigoletto, Gilda, Giovanna, Duca)
  track: Verdi: Rigoletto, Act 1: "È il sol dell'anima" (Duca, Gilda, Ceprano, Borsa, Giovanna)
  track: Verdi: Rigoletto, Act 1: "Zitti, zitti, moviamo a vendetta" (Borsa, Marullo, Ceprano, Coro)
  track: Verdi: Rigoletto, Act 2: "Parmi veder le lagrime" (Duca)
  track: Verdi: Rigoletto, Act 2: "Compiuto pur quanto" (Rigoletto, Gilda, Usciere, Monterone)
  track: Verdi: Rigoletto, Act 2: "Sì, vendetta, tremenda vendetta" (Rigoletto, Gilda)
  track: Verdi: Rigoletto, Act 3: "La donna è mobile" (Duca, Sparafucile, Rigoletto)
  track: Verdi: Rigoletto, Act 3: "Un dì, se ben rammentomi" (Duca, Maddalena, Gilda, Rigoletto)
  track: Verdi: Rigoletto, Act 3: "Bella figlia dell'amore" (Duca, Maddalena, Gilda, Rigoletto)
  track: Verdi: Rigoletto, Act 3: "È amabile invero" (Maddalena, Sparafucile, Gilda, Coro)
  track: Verdi: Rigoletto, Act 3: "Della vendetta alfin giunge l'istante!" (Rigoletto, Sparafucile, Duca)
  track: Verdi: Rigoletto, Act 3: "Chi è mai, chi è qui in sua vece?" (Rigoletto, Gilda)
  track: Verdi: Rigoletto, Act 3: "V'ho ingannato" (Rigoletto, Gilda)
album: Verdi: Un ballo in maschera (Live)
album: Berlioz: Troiani (Sung in Italian)
album: Verdi: Il trovatore (Recorded 1961) [Live]
album: A Discographic Career
album: Ettore Bastianini rarities
album: Verdi: Un ballo in maschera
album: Verdi: Un ballo in maschera (Stereo Version)
album: Verdi: Un ballo in maschera (Mono Version)
album: Verdi: Aïda (Live)
album: Berlioz: Les Troyens, H. 133 (Sung in Italian)
album: Leo: La morte di Abele, Extracts (Stereo Version)
album: Rigoletto - Highlights
album: Verdi Rigoletto
album: Mascagni: Cavalleria Rusticana - Leoncavallo: I Pagliacci
album: Icon: Franco Corelli
album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
album: Opera Heroes
album: Verdi: Rigoletto (1955 - Serafin) - Callas Remastered
album: Opera Classics
album: Verdi: Rigoletto (Callas, Di Stefano, Gobbi / La Scala) (1955)
album: Highlights from Cavalleria Rusticana & I Pagliacci
album: Mascagni: Cavalleria Rusticana, Extracts - Leoncavallo: Pagliacci, Extracts (Stereo Version)
album: Un Ballo In Maschera

Rigoletto, Atto III Scena 3: Bella figlia dell'amore
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duration: PT4M44S
duration ms: 284200
explicit: false
by artist: Luciano Pavarotti
by artist: Adriana Lazzarini
by artist: Piero Cappuccilli
by artist: Margherita Rinaldi
by artist: Giuseppe Verdi
by artist: Francesco Maria Piave
in album: Rigoletto - Highlights
  type: MusicAlbum
  date published: 1991-01-01
genre: classical-tenor
genre: italian-tenor
genre: operatic-pop
genre: opera
genre: canzone-napoletana
isrc code: USA560858575
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
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc6aabce3d76ffcf537e09439815417149ec3b640f455a41f23883af23115f7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA560858575.
  date published: 2026-06-13T17:25:41Z
audio: Rigoletto, Atto III Scena 3: Bella figlia dell'amore
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Verdi: Rigoletto, Act 1: "In testa che avete" (Rigoletto, Borsa, Coro)
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duration: PT0M52S
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by artist: Giuseppe Verdi
by artist: Tullio Serafin
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by artist: Renato Ercolani
by artist: Tito Gobbi
by artist: Orchestra Del Teatro Alla Scala, Milano
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98874065e088ae409eb2058241c6071a928f4aa5c4b049c1e8637779d2822644. 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/GBAYC1400703.
  date published: 2026-07-08T03:53:27Z
audio: Verdi: Rigoletto, Act 1: "In testa che avete" (Rigoletto, Borsa, Coro)
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Verdi: Rigoletto, Act 1: "Quel vecchio maledivami!" (Rigoletto, Sparafucile)
type: MusicRecording
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by artist: Orchestra Del Teatro Alla Scala, Milano
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genre: opera
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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: Verdi: Rigoletto, Act 1: "Quel vecchio maledivami!" (Rigoletto, Sparafucile)
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.315
  additional property: Energy
    type: PropertyValue
    value: 0.055
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.128
  additional property: Loudness (dB)
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    value: -28.319
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Verdi: Rigoletto, Act 1: "Pari siamo!" (Rigoletto)
type: MusicRecording
duration: PT3M46S
duration ms: 226253
explicit: false
by artist: Giuseppe Verdi
by artist: Tullio Serafin
by artist: Tito Gobbi
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2023-02-10
genre: classical
genre: opera
isrc code: GBAYC1400708
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:36:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe00e74c123ba8bfe9c6d4c5b3622232ebd31f6eb537a6539893bd78f9ccf85d6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400708
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00e74c123ba8bfe9c6d4c5b3622232ebd31f6eb537a6539893bd78f9ccf85d6. 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/GBAYC1400708.
  date published: 2026-07-08T03:53:27Z
audio: Verdi: Rigoletto, Act 1: "Pari siamo!" (Rigoletto)
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 135.951
  additional property: Musical Key
    type: PropertyValue
    value: 0
  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: 0.354
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.129
  additional property: Valence (Positivity)
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    value: 0.059
  additional property: Loudness (dB)
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    value: -18.56
  additional property: Key Name
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Verdi: Rigoletto, Act 1: "Figlia!" - "Mio padre!" (Rigoletto, Gilda, Giovanna)
type: MusicRecording
duration: PT6M39S
duration ms: 399453
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Giuse Gerbino
by artist: Tito Gobbi
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2023-02-10
genre: classical
genre: opera
isrc code: GBAYC1400709
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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  value: 2026-07-06T22:44:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5424ee93ad649219c272342a03dbfec0dc766e3a66ab0b45058281b79e46f6fd
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/GBAYC1400709
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5424ee93ad649219c272342a03dbfec0dc766e3a66ab0b45058281b79e46f6fd. 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/GBAYC1400709.
  date published: 2026-07-08T03:20:19Z
audio: Verdi: Rigoletto, Act 1: "Figlia!" - "Mio padre!" (Rigoletto, Gilda, Giovanna)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.262
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.297
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.131
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.971
  additional property: Key Name
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    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Rigoletto, Act 1: "Ah, veglia, o donna" (Rigoletto, Gilda, Giovanna, Duca)
type: MusicRecording
duration: PT5M7S
duration ms: 307040
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Giuse Gerbino
by artist: Giuseppe Di Stefano
by artist: Tito Gobbi
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2023-02-10
genre: classical
genre: opera
isrc code: GBAYC1400710
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:46:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xee9e38dcd0a21844470c12bea2917d399d56fafaf6e1b00d0fa6a799ba671b30
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400710
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9e38dcd0a21844470c12bea2917d399d56fafaf6e1b00d0fa6a799ba671b30. 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/GBAYC1400710.
  date published: 2026-07-08T03:53:27Z
audio: Verdi: Rigoletto, Act 1: "Ah, veglia, o donna" (Rigoletto, Gilda, Giovanna, Duca)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.239
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.315
  additional property: Energy
    type: PropertyValue
    value: 0.2
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.007
  additional property: Liveness
    type: PropertyValue
    value: 0.105
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.155
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.504
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Rigoletto, Act 1: "È il sol dell'anima" (Duca, Gilda, Ceprano, Borsa, Giovanna)
type: MusicRecording
duration: PT4M17S
duration ms: 257613
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Carlo Forti
by artist: Giuse Gerbino
by artist: Giuseppe Di Stefano
by artist: Renato Ercolani
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2023-02-10
genre: classical
genre: opera
isrc code: GBAYC1400712
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:36:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x65c956a4e7e0828de3f6ccc50f83a6e8916e810afe80568f6ee6f3c3606fe5a6
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/GBAYC1400712
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c956a4e7e0828de3f6ccc50f83a6e8916e810afe80568f6ee6f3c3606fe5a6. 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/GBAYC1400712.
  date published: 2026-07-08T03:22:41Z
audio: Verdi: Rigoletto, Act 1: "È il sol dell'anima" (Duca, Gilda, Ceprano, Borsa, Giovanna)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.388
  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: 0.331
  additional property: Energy
    type: PropertyValue
    value: 0.096
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.208
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.195
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.992
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Rigoletto, Act 1: "Zitti, zitti, moviamo a vendetta" (Borsa, Marullo, Ceprano, Coro)
type: MusicRecording
duration: PT1M26S
duration ms: 86013
explicit: false
by artist: Giuseppe Verdi
by artist: Tullio Serafin
by artist: Carlo Forti
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Renato Ercolani
by artist: William Dickie
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2023-02-10
genre: classical
genre: opera
isrc code: GBAYC1400716
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:11:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x248f94f6fb31feaf3629a2a61555a591abe69028db72feda348d944102815c6f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400716
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248f94f6fb31feaf3629a2a61555a591abe69028db72feda348d944102815c6f. 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/GBAYC1400716.
  date published: 2026-07-08T03:53:27Z
audio: Verdi: Rigoletto, Act 1: "Zitti, zitti, moviamo a vendetta" (Borsa, Marullo, Ceprano, Coro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.019
  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: 0.465
  additional property: Energy
    type: PropertyValue
    value: 0.129
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.395
  additional property: Liveness
    type: PropertyValue
    value: 0.124
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.605
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.179
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Rigoletto, Act 2: "Parmi veder le lagrime" (Duca)
type: MusicRecording
duration: PT2M43S
duration ms: 163226
explicit: false
by artist: Giuseppe Verdi
by artist: Tullio Serafin
by artist: Giuseppe Di Stefano
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2023-02-10
genre: classical
genre: opera
isrc code: GBAYC1400719
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:06:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e643707b575513c7c440ec08087f1972a42cc4db261e1a1e3a172a318f378a3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400719
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e643707b575513c7c440ec08087f1972a42cc4db261e1a1e3a172a318f378a3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400719.
  date published: 2026-07-08T08:56:20Z
audio: Verdi: Rigoletto, Act 2: "Parmi veder le lagrime" (Duca)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.729
  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: 0.347
  additional property: Energy
    type: PropertyValue
    value: 0.138
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.164
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.854
  additional property: Key Name
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    value: C#
  additional property: Mode Name
    type: PropertyValue
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Verdi: Rigoletto, Act 2: "Compiuto pur quanto" (Rigoletto, Gilda, Usciere, Monterone)
type: MusicRecording
duration: PT1M8S
duration ms: 68733
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Plinio Clabassi
by artist: Tito Gobbi
by artist: Vittorio Tatozzi
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2023-02-10
genre: classical
genre: opera
isrc code: GBAYC1400725
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:08:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe338feeb602c64f6dbc791ca76018b08173ab0fa717034574eadf288b8cfe71b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400725
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe338feeb602c64f6dbc791ca76018b08173ab0fa717034574eadf288b8cfe71b. 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/GBAYC1400725.
  date published: 2026-07-08T03:53:27Z
audio: Verdi: Rigoletto, Act 2: "Compiuto pur quanto" (Rigoletto, Gilda, Usciere, Monterone)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.571
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.414
  additional property: Energy
    type: PropertyValue
    value: 0.296
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.157
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.195
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.978
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Verdi: Rigoletto, Act 2: "Sì, vendetta, tremenda vendetta" (Rigoletto, Gilda)
type: MusicRecording
duration: PT2M14S
duration ms: 134200
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Tito Gobbi
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2023-02-10
genre: classical
genre: opera
isrc code: GBAYC1400726
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T01:44:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4359d30820ad286592ebb6e993993fb6bb8049259d3a803c42468405ca21e147
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/GBAYC1400726
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4359d30820ad286592ebb6e993993fb6bb8049259d3a803c42468405ca21e147. 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/GBAYC1400726.
  date published: 2026-07-08T03:20:19Z
audio: Verdi: Rigoletto, Act 2: "Sì, vendetta, tremenda vendetta" (Rigoletto, Gilda)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 144.862
  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: 0.348
  additional property: Energy
    type: PropertyValue
    value: 0.374
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.971
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.059
  additional property: Liveness
    type: PropertyValue
    value: 0.108
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.529
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.436
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Rigoletto, Act 3: "La donna è mobile" (Duca, Sparafucile, Rigoletto)
type: MusicRecording
duration: PT3M12S
duration ms: 192706
explicit: false
by artist: Giuseppe Verdi
by artist: Tullio Serafin
by artist: Giuseppe Di Stefano
by artist: Nicola Zaccaria
by artist: Tito Gobbi
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2023-02-10
genre: classical
genre: opera
isrc code: GBAYC1400728
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:45:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2557d51087f6791c1056e9e9460e399124ed850767b48e86321a902d5f99fc57
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/GBAYC1400728
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2557d51087f6791c1056e9e9460e399124ed850767b48e86321a902d5f99fc57. 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/GBAYC1400728.
  date published: 2026-07-08T03:22:41Z
audio: Verdi: Rigoletto, Act 3: "La donna è mobile" (Duca, Sparafucile, Rigoletto)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 168.39
  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: 0.271
  additional property: Energy
    type: PropertyValue
    value: 0.073
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.118
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.192
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.99
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Rigoletto, Act 3: "Un dì, se ben rammentomi" (Duca, Maddalena, Gilda, Rigoletto)
type: MusicRecording
duration: PT1M35S
duration ms: 95226
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Adriana Lazzarini
by artist: Giuseppe Di Stefano
by artist: Tito Gobbi
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2023-02-10
genre: classical
genre: opera
isrc code: GBAYC1400729
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:14:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2c4eb4e71f90e927f7f08666887a9f5244020944c90b9f7278bc442b6bc520a8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400729
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4eb4e71f90e927f7f08666887a9f5244020944c90b9f7278bc442b6bc520a8. 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/GBAYC1400729.
  date published: 2026-07-08T03:53:27Z
audio: Verdi: Rigoletto, Act 3: "Un dì, se ben rammentomi" (Duca, Maddalena, Gilda, Rigoletto)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.424
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.39
  additional property: Energy
    type: PropertyValue
    value: 0.278
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.46
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.071
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Rigoletto, Act 3: "Bella figlia dell'amore" (Duca, Maddalena, Gilda, Rigoletto)
type: MusicRecording
duration: PT4M59S
duration ms: 299320
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Adriana Lazzarini
by artist: Giuseppe Di Stefano
by artist: Tito Gobbi
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2023-02-10
genre: classical
genre: opera
isrc code: GBAYC1400730
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:10:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x396a8dcad2d5adc4a499e123e52ba51886e79d2c6809134411c72d74f65b4cd2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400730
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396a8dcad2d5adc4a499e123e52ba51886e79d2c6809134411c72d74f65b4cd2. 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/GBAYC1400730.
  date published: 2026-07-08T03:53:27Z
audio: Verdi: Rigoletto, Act 3: "Bella figlia dell'amore" (Duca, Maddalena, Gilda, Rigoletto)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.891
  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: 0.278
  additional property: Energy
    type: PropertyValue
    value: 0.221
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.344
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.208
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.837
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Rigoletto, Act 3: "È amabile invero" (Maddalena, Sparafucile, Gilda, Coro)
type: MusicRecording
duration: PT5M59S
duration ms: 359880
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Adriana Lazzarini
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Nicola Zaccaria
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2023-02-10
genre: classical
genre: opera
isrc code: GBAYC1400732
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:26:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xea02fc056ae07f3525913e83cb0843462dfeb2e45df0b03dcf469bd040f9b9c2
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/GBAYC1400732
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea02fc056ae07f3525913e83cb0843462dfeb2e45df0b03dcf469bd040f9b9c2. 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/GBAYC1400732.
  date published: 2026-07-08T03:22:41Z
audio: Verdi: Rigoletto, Act 3: "È amabile invero" (Maddalena, Sparafucile, Gilda, Coro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.047
  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: 0.443
  additional property: Energy
    type: PropertyValue
    value: 0.268
  additional property: Speechiness
    type: PropertyValue
    value: 0.11
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.24
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.172
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.072
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Rigoletto, Act 3: "Della vendetta alfin giunge l'istante!" (Rigoletto, Sparafucile, Duca)
type: MusicRecording
duration: PT4M51S
duration ms: 291906
explicit: false
by artist: Giuseppe Verdi
by artist: Tullio Serafin
by artist: Giuseppe Di Stefano
by artist: Nicola Zaccaria
by artist: Tito Gobbi
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2023-02-10
genre: classical
genre: opera
isrc code: GBAYC1400733
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:35:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x47b6d4dc0f609ff2dd462f1afe1a85ba36edfb10c4a39b4ba3478558e547e7e8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400733
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b6d4dc0f609ff2dd462f1afe1a85ba36edfb10c4a39b4ba3478558e547e7e8. 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/GBAYC1400733.
  date published: 2026-07-08T03:53:27Z
audio: Verdi: Rigoletto, Act 3: "Della vendetta alfin giunge l'istante!" (Rigoletto, Sparafucile, Duca)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.454
  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: 0.455
  additional property: Energy
    type: PropertyValue
    value: 0.118
  additional property: Speechiness
    type: PropertyValue
    value: 0.067
  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.181
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.121
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.462
  additional property: Key Name
    type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
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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: Il trovatore (Recorded 1961) [Live]
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A Discographic Career
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Ettore Bastianini rarities
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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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track: Un ballo in maschera, Act III: Eri tu, che macchiavi quell'anima
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T08:56:20Z
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

Un ballo in maschera, Act II: Ecco l'orrido campo
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d71ff26b21ff978751d2aed35e2a5c18ea343eeb70348b30dc6e1afd6016de8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560858564.
    date published: 2026-07-02T03:30:09Z
  audio: Rigoletto, Atto I Scena 8: Pari siamo !... io la lingua, egli ha il pugnale
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    additional property: Valence (Positivity)
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track: Rigoletto, Atto II Scena 3-4: Povero Rigoletto!
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  by artist: Piero Cappuccilli
  by artist: Maria Barbera
  by artist: Angelo Jacopucci
  by artist: Teodoro Rovetta
  by artist: Leonardo Monreale
  by artist: Giuseppe Verdi
  by artist: Francesco Maria Piave
  in album: Rigoletto - Highlights
    type: MusicAlbum
    date published: 1991-01-01
  genre: opera
  genre: italian-baritone
  genre: classical-baritone
  isrc code: USA560858569
  additional property: CopyrightID
  additional property: CopyrightStatus
  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: Rigoletto, Atto II Scena 3-4: Povero Rigoletto!
track: Rigoletto, Atto II Scena 4: Cortigiani, vil razza dannata
track: Rigoletto, Atto II Scena 6: Tutte le feste al tempio
track: Rigoletto, Atto II Scena 8: Si, vendetta, tremenda vendetta
track: Rigoletto, Atto III Scena 3: Bella figlia dell'amore
track: Rigoletto, Atto III Scena 7-8-9-10: Della Vendetta alfin giunge l'istante!

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

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560858569

OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac67c2309c3c7fee1bfd7fd8b5fc13fe996f90e2c43f3e858bbc2f87d491502d. 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/USA560858569.
date published: 2026-07-08T03:20:19Z

Rigoletto, Atto II Scena 3-4: Povero Rigoletto!
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additional property: Mode (Major/Minor)
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Rigoletto, Atto II Scena 4: Cortigiani, vil razza dannata
type: MusicRecording
duration: PT4M53S
duration ms: 293906
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by artist: Piero Cappuccilli
by artist: Giuseppe Verdi
by artist: Francesco Maria Piave
in album: Rigoletto - Highlights
  type: MusicAlbum
  date published: 1991-01-01
genre: opera
genre: italian-baritone
genre: classical-baritone
isrc code: USA560858570
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additional property: OTSHash
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560858570
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d1b2a4ba2553c8ad3c9d75a7f0f5e41ba2e3ec0e657a70e6fc5231ed42e283. 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/USA560858570.
  date published: 2026-07-08T03:20:19Z
audio: Rigoletto, Atto II Scena 4: Cortigiani, vil razza dannata
  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: Danceability
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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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Rigoletto, Atto II Scena 6: Tutte le feste al tempio
type: MusicRecording
duration: PT8M24S
duration ms: 504400
explicit: false
by artist: Margherita Rinaldi
by artist: Piero Cappuccilli
by artist: Plinio Clabassi
by artist: Giuseppe Verdi
by artist: Francesco Maria Piave
in album: Rigoletto - Highlights
  type: MusicAlbum
  date published: 1991-01-01
genre: opera
isrc code: USA560858571
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/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560858571
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaef0a48cd9be9c0e55dab2bf43da571565a32aead16b3aa2f2260ecec5214ba. 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/USA560858571.
  date published: 2026-07-08T03:53:27Z
audio: Rigoletto, Atto II Scena 6: Tutte le feste al tempio
  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: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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Rigoletto, Atto II Scena 8: Si, vendetta, tremenda vendetta
type: MusicRecording
duration: PT2M28S
duration ms: 148066
explicit: false
by artist: Piero Cappuccilli
by artist: Margherita Rinaldi
by artist: Giuseppe Verdi
by artist: Francesco Maria Piave
in album: Rigoletto - Highlights
  type: MusicAlbum
  date published: 1991-01-01
genre: opera
genre: italian-baritone
genre: classical-baritone
isrc code: USA560858572
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
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06596a1152e68c7431793a5171b642984a9854d9ddab33510f7ee9ecedf392f0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USA560858572.
  date published: 2026-07-02T05:09:12Z
audio: Rigoletto, Atto II Scena 8: Si, vendetta, tremenda vendetta
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Rigoletto, Atto III Scena 7-8-9-10: Della Vendetta alfin giunge l'istante!
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duration: PT4M38S
duration ms: 278706
explicit: false
by artist: Piero Cappuccilli
by artist: Nicola Zaccaria
by artist: Luciano Pavarotti
by artist: Giuseppe Verdi
by artist: Francesco Maria Piave
in album: Rigoletto - Highlights
  type: MusicAlbum
  date published: 1991-01-01
genre: opera
genre: italian-baritone
genre: classical-baritone
isrc code: USA560858576
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
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9157b1794fa8aa4ce46c05419f7c59262482eb14203f94a41b706a5950551c. 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/USA560858576.
  date published: 2026-07-08T03:20:19Z
audio: Rigoletto, Atto III Scena 7-8-9-10: Della Vendetta alfin giunge l'istante!
  type: AudioObject
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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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Verdi Rigoletto
type: MusicAlbum
date published: 1956
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  duration: PT2M43S
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  by artist: Giuseppe Verdi
  by artist: Giuseppe Di Stefano
  by artist: Orchestra Del Teatro Alla Scala, Milano
  by artist: Tullio Serafin
  by artist: Orchestra Del Teatro Alla Scala Di Milan
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    type: MusicAlbum
    date published: 1956
  genre: classical
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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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530ffc88e4633975583d383c35367844d725c5c0a3ee4c8883da62f045543ead. 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/GBAYC9702294.
    date published: 2026-07-08T03:20:19Z
  audio: Rigoletto, Act II: Parmi veder le lagrime (Duca)
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    additional property: Tempo (BPM)
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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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track: Verdi: Rigoletto, Act I: "Questa o quella"
  type: MusicRecording
  duration: PT2M3S
  duration ms: 123160
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  by artist: Giuseppe Verdi
  by artist: Giuseppe Di Stefano
  by artist: Orchestra Del Teatro Alla Scala, Milano
  by artist: Tullio Serafin
  in album: Verdi Rigoletto
    type: MusicAlbum
    date published: 1956
  genre: classical
  genre: opera
  isrc code: GBAYC9702274
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-07-06T07:02:47+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x11872cb87636152ab9fd6d35bc4b6ec7eaf823d5c0c0ab007ce5fdca35cfedbe
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  additional property: OTSBitcoinBlock
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    value: 957075
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957075
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702274
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T18:50:38Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11872cb87636152ab9fd6d35bc4b6ec7eaf823d5c0c0ab007ce5fdca35cfedbe. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702274.
    date published: 2026-07-07T18:50:38Z
  audio: Verdi: Rigoletto, Act I: "Questa o quella"
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Instrumentalness
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track: Rigoletto, Act II: Duca, Duca! .... Ebben? (Borsa/Marullo/Ceprano/Coro/Duca)
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  duration: PT2M26S
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  by artist: Giuseppe Verdi
  by artist: Giuseppe Di Stefano
  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 Rigoletto
    type: MusicAlbum
    date published: 1956
  genre: classical
  genre: opera
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  additional property: CopyrightID
  additional property: CopyrightStatus
  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: Rigoletto, Act II: Duca, Duca! .... Ebben? (Borsa/Marullo/Ceprano/Coro/Duca)
track: Rigoletto, Act I, Scene 1: In testa che avete (Rigoletto/Borsa/Coro)
track: Rigoletto, Act I, Scene 1: Ch'io gli parli (Monterone/Duca/Borsa/Rigoletto/Marullo/Ceprano/Coro)
track: Rigoletto, Act I, Scene 2: Quel vecchio maledivami (Rigoletto/Sparafucile)
track: Rigoletto, Act II: Sì, vendetta, tremenda vendetta (Rigoletto/Gilda)
track: Verdi: Rigoletto, Act III: "La donna è mobile"
track: Rigoletto, Act I, Scene 2: Giovanna, ho dei rimorsi (Gilda/Giovanna/Duca)
track: Rigoletto, Act III: Bella figlia dell'amore (Duca/Maddalena/Gilda/Rigoletto)
track: Rigoletto, Act III: Venti scudi hai tu detto? (Rigoletto/Sparafucile/Duca/Maddalena/Coro)
track: Verdi: Rigoletto, Act 1 Scene 13: No. 6, Scene ed Aria, "Gualtier Maldè! … Caro nome che il mio cor" (Gilda, Borsa, Ceprano, Marullo, Chorus)
track: Rigoletto, Act I, Scene 2: Riedo!...perche? ...Silenzio! (Rigoletto/Borsa/Ceprano/Marullo)
track: Rigoletto, Act III: Chi mai, chi è qui in sua vece? (Rigoletto/Gilda)
track: Rigoletto, Act I, Scene 2: Zitti, zitti, moviamo a vendetta (Borsa/Marullo/Ceprano/Coro)

CopyrightStatus
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CopyrightRegisteredAt
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value: 2026-07-06T22:47:01+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xbda00a3c8342875e4faf79240aab39e894fc530785d9b1abea34568f1cab4461

OTSHash
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OTSBitcoinBlock
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value: 957124

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957124

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702295

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:53:27Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda00a3c8342875e4faf79240aab39e894fc530785d9b1abea34568f1cab4461. 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/GBAYC9702295.
date published: 2026-07-08T03:53:27Z

Rigoletto, Act II: Duca, Duca! .... Ebben? (Borsa/Marullo/Ceprano/Coro/Duca)
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
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Rigoletto, Act I, Scene 1: In testa che avete (Rigoletto/Borsa/Coro)
type: MusicRecording
duration: PT0M52S
duration ms: 52893
explicit: false
by artist: Giuseppe Verdi
by artist: Tito Gobbi
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 Rigoletto
  type: MusicAlbum
  date published: 1956
genre: classical
genre: opera
isrc code: GBAYC9702276
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:47:34+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x4507d6bd6994343712523b9ea7ef0a10b654fb2a6ce5a4727450034574546282
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/GBAYC9702276
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4507d6bd6994343712523b9ea7ef0a10b654fb2a6ce5a4727450034574546282. 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/GBAYC9702276.
  date published: 2026-07-08T03:20:19Z
audio: Rigoletto, Act I, Scene 1: In testa che avete (Rigoletto/Borsa/Coro)
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  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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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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    value: 0.79
  additional property: Loudness (dB)
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    value: -20.501
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Rigoletto, Act I, Scene 1: Ch'io gli parli (Monterone/Duca/Borsa/Rigoletto/Marullo/Ceprano/Coro)
type: MusicRecording
duration: PT3M14S
duration ms: 194026
explicit: false
by artist: Giuseppe Verdi
by artist: Plinio Clabassi
by artist: Giuseppe Di Stefano
by artist: Renato Ercolani
by artist: Tito Gobbi
by artist: William Dickie
by artist: Carlo Forti
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala Di Milan
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi Rigoletto
  type: MusicAlbum
  date published: 1956
genre: classical
genre: opera
isrc code: GBAYC9702278
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:15:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9036d26c9e60bddaf8aadb29db35962b0a56d10d8fd85815e49561da8b1f01b9
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702278
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9036d26c9e60bddaf8aadb29db35962b0a56d10d8fd85815e49561da8b1f01b9. 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/GBAYC9702278.
  date published: 2026-07-08T03:53:27Z
audio: Rigoletto, Act I, Scene 1: Ch'io gli parli (Monterone/Duca/Borsa/Rigoletto/Marullo/Ceprano/Coro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.253
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.348
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.01
  additional property: Liveness
    type: PropertyValue
    value: 0.596
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.131
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.404
  additional property: Key Name
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Rigoletto, Act I, Scene 2: Quel vecchio maledivami (Rigoletto/Sparafucile)
type: MusicRecording
duration: PT4M29S
duration ms: 269733
explicit: false
by artist: Giuseppe Verdi
by artist: Tito Gobbi
by artist: Nicola Zaccaria
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala Di Milan
in album: Verdi Rigoletto
  type: MusicAlbum
  date published: 1956
genre: classical
genre: opera
isrc code: GBAYC9702281
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:58:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ff0a376d8dc955fbd50a6e9e63ff52c37cf61cf1b7be3dc5f03be7bdf1dfade
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 957026
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957026
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702281
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T11:02:43Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff0a376d8dc955fbd50a6e9e63ff52c37cf61cf1b7be3dc5f03be7bdf1dfade. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702281.
  date published: 2026-07-07T11:02:43Z
audio: Rigoletto, Act I, Scene 2: Quel vecchio maledivami (Rigoletto/Sparafucile)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.005
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.113
  additional property: Loudness (dB)
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  additional property: Mode Name
    type: PropertyValue
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Rigoletto, Act II: Sì, vendetta, tremenda vendetta (Rigoletto/Gilda)
type: MusicRecording
duration: PT2M22S
duration ms: 142293
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Tito Gobbi
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala Di Milan
in album: Verdi Rigoletto
  type: MusicAlbum
  date published: 1956
genre: classical
genre: opera
isrc code: GBAYC9702301
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T08:06:17+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x51db62ef154e74f2e0d8c6d2d91109efa4f5a3897da1f3a0a3851731bfa1bbbf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957073
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702301
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51db62ef154e74f2e0d8c6d2d91109efa4f5a3897da1f3a0a3851731bfa1bbbf. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBAYC9702301.
  date published: 2026-07-07T18:39:05Z
audio: Rigoletto, Act II: Sì, vendetta, tremenda vendetta (Rigoletto/Gilda)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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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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Verdi: Rigoletto, Act III: "La donna è mobile"
type: MusicRecording
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duration ms: 158866
explicit: false
by artist: Giuseppe Verdi
by artist: Giuseppe Di Stefano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Nicola Zaccaria
by artist: Tito Gobbi
in album: Verdi Rigoletto
  type: MusicAlbum
  date published: 1956
genre: classical
genre: opera
isrc code: GBAYC9702304
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d712315e6303a69438b5c3f3467e8d736b857e5fb9127c64d498d99fa43f0f. 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/GBAYC9702304.
  date published: 2026-07-02T03:55:08Z
audio: Verdi: Rigoletto, Act III: "La donna è mobile"
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Rigoletto, Act I, Scene 2: Giovanna, ho dei rimorsi (Gilda/Giovanna/Duca)
type: MusicRecording
duration: PT3M11S
duration ms: 191600
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Giuseppe Di Stefano
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala Di Milan
in album: Verdi Rigoletto
  type: MusicAlbum
  date published: 1956
genre: classical
genre: opera
isrc code: GBAYC9702285
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e2fff2b4c342c1d8aa85d612dcfa7d023f22e22150e1d3735e0a72914337e5. 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/GBAYC9702285.
  date published: 2026-07-08T03:20:19Z
audio: Rigoletto, Act I, Scene 2: Giovanna, ho dei rimorsi (Gilda/Giovanna/Duca)
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Rigoletto, Act III: Bella figlia dell'amore (Duca/Maddalena/Gilda/Rigoletto)
type: MusicRecording
duration: PT4M49S
duration ms: 289226
explicit: false
by artist: Giuseppe Verdi
by artist: Giuseppe Di Stefano
by artist: Adriana Lazzarini
by artist: Maria Callas
by artist: Tito Gobbi
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala Di Milan
in album: Verdi Rigoletto
  type: MusicAlbum
  date published: 1956
genre: classical
genre: opera
isrc code: GBAYC9702306
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b79682f7c1ffa5fe7a28c11e0292c3abaf969d480a9cea80c0d2ddaa7294924. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBAYC9702306.
  date published: 2026-07-02T11:38:34Z
audio: Rigoletto, Act III: Bella figlia dell'amore (Duca/Maddalena/Gilda/Rigoletto)
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Rigoletto, Act III: Venti scudi hai tu detto? (Rigoletto/Sparafucile/Duca/Maddalena/Coro)
type: MusicRecording
duration: PT4M2S
duration ms: 242560
explicit: false
by artist: Giuseppe Verdi
by artist: Tito Gobbi
by artist: Nicola Zaccaria
by artist: Giuseppe Di Stefano
by artist: Adriana Lazzarini
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 Rigoletto
  type: MusicAlbum
  date published: 1956
genre: classical
genre: opera
isrc code: GBAYC9702307
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d4ad197661a672e0b3ad9452960058bd2bd80c61e96e240a72b94917fce712. 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/GBAYC9702307.
  date published: 2026-07-08T03:20:19Z
audio: Rigoletto, Act III: Venti scudi hai tu detto? (Rigoletto/Sparafucile/Duca/Maddalena/Coro)
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Verdi: Rigoletto, Act 1 Scene 13: No. 6, Scene ed Aria, "Gualtier Maldè! … Caro nome che il mio cor" (Gilda, Borsa, Ceprano, Marullo, Chorus)
type: MusicRecording
duration: PT7M35S
duration ms: 455386
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Renato Ercolani
by artist: William Dickie
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala Di Milan
by artist: Philharmonia Orchestra
in album: Verdi Rigoletto
  type: MusicAlbum
  date published: 1956
genre: classical
genre: opera
isrc code: GBAYC9702288
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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  value: 2026-06-18T17:01:33+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x36b3195bb74852e992dc2f8698277f8b5eac7653fb32243c97ca72f6ae2284b8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702288
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b3195bb74852e992dc2f8698277f8b5eac7653fb32243c97ca72f6ae2284b8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702288.
  date published: 2026-07-02T03:30:09Z
audio: Verdi: Rigoletto, Act 1 Scene 13: No. 6, Scene ed Aria, "Gualtier Maldè! … Caro nome che il mio cor" (Gilda, Borsa, Ceprano, Marullo, Chorus)
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    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Valence (Positivity)
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Rigoletto, Act I, Scene 2: Riedo!...perche? ...Silenzio! (Rigoletto/Borsa/Ceprano/Marullo)
type: MusicRecording
duration: PT2M9S
duration ms: 129173
explicit: false
by artist: Giuseppe Verdi
by artist: Tito Gobbi
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala Di Milan
in album: Verdi Rigoletto
  type: MusicAlbum
  date published: 1956
genre: classical
genre: opera
isrc code: GBAYC9702289
additional property: CopyrightID
additional property: CopyrightStatus
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  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-07T02:31:52+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x25f713b58acf225fa055b3aa7fc6572ba38b6715d35f013a2099d432ec088351
additional property: OTSHash
additional property: OTSBitcoinBlock
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  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/GBAYC9702289
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f713b58acf225fa055b3aa7fc6572ba38b6715d35f013a2099d432ec088351. 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/GBAYC9702289.
  date published: 2026-07-08T03:22:41Z
audio: Rigoletto, Act I, Scene 2: Riedo!...perche? ...Silenzio! (Rigoletto/Borsa/Ceprano/Marullo)
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  additional property: Danceability
    type: PropertyValue
    value: 0.448
  additional property: Energy
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    type: PropertyValue
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Rigoletto, Act III: Chi mai, chi è qui in sua vece? (Rigoletto/Gilda)
type: MusicRecording
duration: PT6M37S
duration ms: 397160
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Tito Gobbi
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala Di Milan
in album: Verdi Rigoletto
  type: MusicAlbum
  date published: 1956
genre: classical
genre: opera
isrc code: GBAYC9702310
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-07T09:31:16+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 957124
additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Rigoletto, Act III: Chi mai, chi è qui in sua vece? (Rigoletto/Gilda)
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Rigoletto, Act I, Scene 2: Zitti, zitti, moviamo a vendetta (Borsa/Marullo/Ceprano/Coro)
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by artist: Renato Ercolani
by artist: William Dickie
by artist: Carlo Forti
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
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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: Rigoletto, Act I, Scene 2: Zitti, zitti, moviamo a vendetta (Borsa/Marullo/Ceprano/Coro)
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Mascagni: Cavalleria Rusticana - Leoncavallo: I Pagliacci
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date published: 1991-09-01
track: Leoncavallo: Pagliacci, Act 1 Scene 3: "E fra quest'ansie in eterno vivrai!" (Silvio, Nedda)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T08:56:20Z
  audio: Leoncavallo: Pagliacci, Act 1 Scene 3: "E fra quest'ansie in eterno vivrai!" (Silvio, Nedda)
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track: Mascagni: Cavalleria rusticana: Intermezzo sinfonico
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T13:32:09Z
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Icon: Franco Corelli
type: MusicAlbum
date published: 2009-03-23
track: Bellini: I puritani, Act 1 Scene 5: Cavatina, "A te, o cara, amor talora" (Arturo)
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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: Massenet: Le Cid, Act 3: "Ah ! Tout est bien fini" - "Ô souverain, ô juge, ô père" (Rodrigue)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T08:56:20Z
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track: Donizetti: La Favorita, Act 4 Scene 3: No. 14, Recitativo e Romanza, "Favorita del Re! … Spirito gentil ne' sogni miei" (Fernando)
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  subject of: OpenTimestamps Proof of Existence
  audio: Donizetti: La Favorita, Act 4 Scene 3: No. 14, Recitativo e Romanza, "Favorita del Re! … Spirito gentil ne' sogni miei" (Fernando)
track: Verdi: Il trovatore, Act 3 Scene 6: "Ah sì, ben mio, coll'essere … Di quella pira" (Manrico, Leonora, Ruiz, Chorus)
track: Verdi: La forza del destino, Act 3 Scene 1: "La vita è inferno all'infelice … O tu che in seno agli angeli" (Alvaro)
track: Leoncavallo: Pagliacci, Act 1 Scene 4: "Recitar! Mentre preso dal delirio … Vesti la giubba" (Canio)
track: Puccini: Manon Lescaut, Act 1: "Donna non vidi mai" (Des Grieux)
track: Puccini: Tosca, Act 1 Scene 3: "Recondita armonia" (Cavaradossi)
track: Verdi: Aïda, Act 1 Scene 1: Romanza, "Se quel guerrier io fossi! … Celeste Aida" (Radames)
track: Puccini: Turandot, Act 1: "Non piangere, Liù! … Ah! per l'ultima volta!" (Calaf, Liù, Timur, Ping, Pong, Pang, Chorus)
track: Puccini: Turandot, Act 3: "Nessun dorma" (Calaf, Coro)

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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
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date published: 2026-07-08T08:56:20Z

Donizetti: La Favorita, Act 4 Scene 3: No. 14, Recitativo e Romanza, "Favorita del Re! … Spirito gentil ne' sogni miei" (Fernando)
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Verdi: Il trovatore, Act 3 Scene 6: "Ah sì, ben mio, coll'essere … Di quella pira" (Manrico, Leonora, Ruiz, Chorus)
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by artist: Gabriella Tucci
by artist: Franco Corelli
by artist: Angelo Mercuriali
by artist: Mario Rinaudo
by artist: Coro Del Teatro Dell'Opera Di Roma
by artist: Renata Scotto, Carlo Bergonzi, Orchestra del Teatro dell’Opera di Roma & Sir John Barbirolli
by artist: Thomas Schippers
by artist: Orchestra Del Teatro Dell'Opera Di Roma
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  date published: 2009-03-23
popularity: 5
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Verdi: Il trovatore, Act 3 Scene 6: "Ah sì, ben mio, coll'essere … Di quella pira" (Manrico, Leonora, Ruiz, Chorus)
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Verdi: La forza del destino, Act 3 Scene 1: "La vita è inferno all'infelice … O tu che in seno agli angeli" (Alvaro)
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popularity: 2
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: 2026-07-08T03:22:41Z
audio: Verdi: La forza del destino, Act 3 Scene 1: "La vita è inferno all'infelice … O tu che in seno agli angeli" (Alvaro)
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Leoncavallo: Pagliacci, Act 1 Scene 4: "Recitar! Mentre preso dal delirio … Vesti la giubba" (Canio)
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duration: PT3M48S
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by artist: Ruggero Leoncavallo
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by artist: Coro Del Teatro Alla Scala Di Milano
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genre: italian-opera
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Leoncavallo: Pagliacci, Act 1 Scene 4: "Recitar! Mentre preso dal delirio … Vesti la giubba" (Canio)
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Puccini: Manon Lescaut, Act 1: "Donna non vidi mai" (Des Grieux)
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Puccini: Manon Lescaut, Act 1: "Donna non vidi mai" (Des Grieux)
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Puccini: Tosca, Act 1 Scene 3: "Recondita armonia" (Cavaradossi)
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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: Puccini: Tosca, Act 1 Scene 3: "Recondita armonia" (Cavaradossi)
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Verdi: Aïda, Act 1 Scene 1: Romanza, "Se quel guerrier io fossi! … Celeste Aida" (Radames)
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duration: PT4M47S
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genre: classical
genre: opera
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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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Puccini: Turandot, Act 1: "Non piangere, Liù! … Ah! per l'ultima volta!" (Calaf, Liù, Timur, Ping, Pong, Pang, Chorus)
type: MusicRecording
duration: PT4M45S
duration ms: 285346
explicit: false
by artist: Giacomo Puccini
by artist: Francesco Molinari-Pradelli
by artist: Franco Corelli
by artist: Orchestra Del Teatro Dell'Opera Di Roma
by artist: Coro Del Teatro Dell'Opera Di Roma
by artist: Renata Scotto
by artist: Franco Ricciardi
by artist: Bonaldo Giaiotti
by artist: Piero de Palma
by artist: Guido Mazzini
in album: Icon: Franco Corelli
  type: MusicAlbum
  date published: 2009-03-23
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audio: Puccini: Turandot, Act 1: "Non piangere, Liù! … Ah! per l'ultima volta!" (Calaf, Liù, Timur, Ping, Pong, Pang, Chorus)
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    date published: 2026-06-13T12:47:07Z
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track: Puccini: Gianni Schicchi: "O mio babbino caro" (Lauretta)
track: Die Zauberflöte, K.620, Act I: Der Vogelfänger bin ich ja
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track: Leoncavallo: Pagliacci, Act 1 Scene 4: "Recitar! Mentre preso dal delirio … Vesti la giubba" (Canio)
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track: Rossini: Il barbiere di Siviglia, Act 1: "La ran la le ra ... Largo al factotum della città" (Figaro)
track: Rossini: Il barbiere di Siviglia, Act 1 Scene 5: No. 9, Cavatina, "Una voce poco fa" (Rosina)
track: Verdi: Il trovatore, Act 4 Scene 1: "D'amor sull'ali rosee" (Leonora)
track: Puccini: La Bohème, Act 1: "Che gelida manina" (Rodolfo)
track: La Bohème (2002 Digital Remaster): Si, mi chiamano Mimi
track: La Bohème: Quando men vo (Musetta's Waltz Song) (Act II)
track: Catalani: La Wally, Act 1: "Ebben? ... Ne andrò lontana" (Wally)
track: Verdi: La Traviata, Act 1: "Libiamo ne' lieti calici" (Alfredo, Tutti, Violetta)
track: Mozart: Le nozze di Figaro, K. 492, Act 1: Aria. "Non più andrai" (Figaro)
track: Le nozze di Figaro, Act II: Aria: Porgi amor
track: Mozart: Le nozze di Figaro, K. 492, Act 3: Duettino. "Sull'aria" (La Contessa, Susanna)
track: Puccini: Madama Butterfly, Act 2: "Un bel dì vedremo" (Butterfly)
track: Flotow: Martha, Act 3: "Ach, so fromm, ach, so traut"
track: Gualtier Maldè!... Caro Nome, Gildas Aria, Ur Rigoletto, Akt I
track: Verdi: Rigoletto, Act III: "La donna è mobile"
track: Rigoletto, Act III: Bella figlia dell'amore (Duca/Maddalena/Gilda/Rigoletto)
track: Dvořák: Rusalka, Op. 114, B. 203, Act 1: "Mesicku na nebi hlubokém" (Rusalka)
track: Charpentier, G.: Louise, Act 3 Scene 1: "Depuis le jour où je me suis donnée" (Louise)
track: Puccini: Tosca, Act 2 Scene 5: "Vissi d'arte, vissi d'amore" (Tosca)
track: Puccini: Tosca, Act III: E lucevan le stelle (Cavaradossi)
track: Korngold: Die tote Stadt, Op. 12, Act I: Lied. "Glück, das mir verblied" (Marietta)
track: Les Contes d'Hoffmann (1989 Digital Remaster), Act III: Entr'acte et Barcarolle: Belle nuit, ô nuit d'amour (Une voix/Giulietta/Choeurs)
track: Donizetti: L'Elisir d'amore, Act 2: Una furtiva lagrima
track: La Gioconda (2000 Digital Remaster): Cielo e mar! (Act II)
track: Puccini: Turandot, Act 1: "Signore, ascolta" (Liù)
track: Nessun Dorma - 1989 Remastered Version

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Die Zauberflöte, K.620, Act I: Der Vogelfänger bin ich ja
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by artist: Norman Bailey
by artist: Erich Kunz
by artist: Roland Bracht
by artist: Wolfgang Brendel
by artist: Siegfried Jerusalem
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by artist: Edita Gruberova
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  date published: 2026-06-13T12:47:07Z
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Mozart: Die Zauberflöte, K. 620, Act 2: "Der Hölle Rache kocht in meinem Herzen" (Königin)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
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Donizetti: Don Pasquale, Act 1: "Sogno soave e casto" (Ernesto, Pasquale)
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  date published: 2026-06-13T12:47:07Z
audio: Donizetti: Don Pasquale, Act 1: "Sogno soave e casto" (Ernesto, Pasquale)
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Donizetti: Don Pasquale, Act 3: "Com' è gentil"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Donizetti: Don Pasquale, Act 3: "Com' è gentil"
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Leoncavallo: Pagliacci, Act 1 Scene 4: "Recitar! Mentre preso dal delirio … Vesti la giubba" (Canio)
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  date published: 2026-06-13T12:47:07Z
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Humperdinck: Hänsel und Gretel, Act 1: Tanzduett. "Brüderchen, komm tanz' mit mir" (Gretel, Hänsel)
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  date published: 2026-06-13T12:47:07Z
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Strauss, R: Der Rosenkavalier, Op. 59, Act II: "Ganz zu Befehl, Herr Kavalier" (Ochs, Annina)
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  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0101350
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9347a45976abb7007695c7dd74bf6b39c41e88298e127b7278fd6e2084cce2f1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC0101350.
  date published: 2026-06-13T12:47:07Z
audio: Strauss, R: Der Rosenkavalier, Op. 59, Act II: "Ganz zu Befehl, Herr Kavalier" (Ochs, Annina)
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Rossini: Il barbiere di Siviglia, Act 1: "La ran la le ra ... Largo al factotum della città" (Figaro)
type: MusicRecording
duration: PT4M20S
duration ms: 260346
explicit: false
by artist: Gioachino Rossini
by artist: Gianluigi Gelmetti
by artist: Thomas Hampson
by artist: Orchestra Della Toscana
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
  type: MusicAlbum
  date published: 2013-03-15
genre: classical
genre: opera
isrc code: GBAYC9200973
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/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9200973
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae14eea26dd255da478d0aa7a28ca67ca0c2c63e2e4988854a6be2a4e8e216c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC9200973.
  date published: 2026-06-13T12:47:07Z
audio: Rossini: Il barbiere di Siviglia, Act 1: "La ran la le ra ... Largo al factotum della città" (Figaro)
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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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Rossini: Il barbiere di Siviglia, Act 1 Scene 5: No. 9, Cavatina, "Una voce poco fa" (Rosina)
type: MusicRecording
duration: PT6M56S
duration ms: 416893
explicit: false
by artist: Gioachino Rossini
by artist: Philharmonia Orchestra
by artist: Maria Callas
by artist: Tullio Serafin
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
  type: MusicAlbum
  date published: 2013-03-15
genre: classical
genre: opera
isrc code: GBAYC9704709
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/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9704709
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320188892842af3255aff5b2b10010105d195e67482ee4085e72877ebebb2532. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC9704709.
  date published: 2026-06-13T12:47:07Z
audio: Rossini: Il barbiere di Siviglia, Act 1 Scene 5: No. 9, Cavatina, "Una voce poco fa" (Rosina)
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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: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Verdi: Il trovatore, Act 4 Scene 1: "D'amor sull'ali rosee" (Leonora)
type: MusicRecording
duration: PT4M7S
duration ms: 247626
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Herbert von Karajan
by artist: Tullio Serafin
by artist: Philharmonia Orchestra
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
  type: MusicAlbum
  date published: 2013-03-15
genre: classical
genre: opera
isrc code: ITD008700124
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/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITD008700124
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ecad9849066405b79c6b0ded47ecb0cb5637492a46b6a8ede3d26a3c64d2ff. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITD008700124.
  date published: 2026-06-13T12:47:07Z
audio: Verdi: Il trovatore, Act 4 Scene 1: "D'amor sull'ali rosee" (Leonora)
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  additional property: Mode (Major/Minor)
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    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Puccini: La Bohème, Act 1: "Che gelida manina" (Rodolfo)
type: MusicRecording
duration: PT5M10S
duration ms: 310706
explicit: false
by artist: Giacomo Puccini
by artist: Jussi Björling
by artist: RCA Victor Orchestra
by artist: Sir Thomas Beecham
by artist: RCA Victor Symphony Orchestra
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
  type: MusicAlbum
  date published: 2013-03-15
isrc code: GBAYC9803691
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
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9803691
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f9873cbef306f859ac9ebc7b85c2959bdd9b5a492dd64bf67a791b69d664bf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC9803691.
  date published: 2026-06-13T12:47:07Z
audio: Puccini: La Bohème, Act 1: "Che gelida manina" (Rodolfo)
  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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    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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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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La Bohème (2002 Digital Remaster): Si, mi chiamano Mimi
type: MusicRecording
duration: PT5M18S
duration ms: 318333
explicit: false
by artist: Giacomo Puccini
by artist: London Symphony Orchestra
by artist: Montserrat Caballé
by artist: Sir Charles Mackerras
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
  type: MusicAlbum
  date published: 2013-03-15
isrc code: GBAYC0202827
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/GBAYC0202827
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89034e115e320e883e9648b0360ed190e763f1f081dd47d9288af5ab94313dd1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC0202827.
  date published: 2026-06-13T12:47:07Z
audio: La Bohème (2002 Digital Remaster): Si, mi chiamano Mimi
  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: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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La Bohème: Quando men vo (Musetta's Waltz Song) (Act II)
type: MusicRecording
duration: PT2M35S
duration ms: 155213
explicit: false
by artist: Giacomo Puccini
by artist: Ghena Dimitrova
by artist: Philharmonia Orchestra
by artist: Anton Guadagno
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
  type: MusicAlbum
  date published: 2013-03-15
isrc code: GBAYC8802718
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: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8802718
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51718e9e499657668626b3817615a2a45de969cc413bcc80e76148e41ab8d93d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC8802718.
  date published: 2026-06-13T12:47:07Z
audio: La Bohème: Quando men vo (Musetta's Waltz Song) (Act II)
  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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    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Catalani: La Wally, Act 1: "Ebben? ... Ne andrò lontana" (Wally)
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duration: PT4M49S
duration ms: 289933
explicit: false
by artist: Alfredo Catalani
by artist: Maria Callas
by artist: Tullio Serafin
by artist: Philharmonia Orchestra
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
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  date published: 2013-03-15
genre: opera
isrc code: GBAYC8600264
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2450b0e18ecdaac54b36939f453510ee60640eafae2c93d22c5300293929f103. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC8600264.
  date published: 2026-06-13T12:47:07Z
audio: Catalani: La Wally, Act 1: "Ebben? ... Ne andrò lontana" (Wally)
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Verdi: La Traviata, Act 1: "Libiamo ne' lieti calici" (Alfredo, Tutti, Violetta)
type: MusicRecording
duration: PT3M2S
duration ms: 182640
explicit: false
by artist: Giuseppe Verdi
by artist: Aldo Ceccato
by artist: Beverly Sills
by artist: Delia Wallis
by artist: Keith Erwen
by artist: Mario Carlin
by artist: Mirella Fiorentini
by artist: Nicolai Gedda
by artist: Richard van Allan
by artist: Robert Lloyd
by artist: Rolando Panerai
by artist: Terence Sharpe
by artist: William Elvin
by artist: Royal Philharmonic Orchestra
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
  type: MusicAlbum
  date published: 2013-03-15
genre: classical
genre: opera
isrc code: GBAYC8803163
additional property: CopyrightID
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16403502fb821502033a6e78820a0c52d9ea48713dc36db7b9c2e77dcc88363f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC8803163.
  date published: 2026-06-13T12:47:07Z
audio: Verdi: La Traviata, Act 1: "Libiamo ne' lieti calici" (Alfredo, Tutti, Violetta)
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Mozart: Le nozze di Figaro, K. 492, Act 1: Aria. "Non più andrai" (Figaro)
type: MusicRecording
duration: PT3M41S
duration ms: 221066
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Riccardo Muti
by artist: Thomas Allen
by artist: Wiener Philharmoniker
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
  type: MusicAlbum
  date published: 2013-03-15
genre: classical
genre: classical-era
isrc code: GBAYC8600643
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: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218f4c74b962d10aa06d6968093120fa4da092cace86be478214f9c676201e6d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC8600643.
  date published: 2026-06-13T12:47:07Z
audio: Mozart: Le nozze di Figaro, K. 492, Act 1: Aria. "Non più andrai" (Figaro)
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  additional property: Danceability
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  additional property: Valence (Positivity)
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Le nozze di Figaro, Act II: Aria: Porgi amor
type: MusicRecording
duration: PT3M50S
duration ms: 230333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Lucia Popp
by artist: Munich Radio Orchestra
by artist: Leonard Slatkin
by artist: Muenchner Rundfunkorchester
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
  type: MusicAlbum
  date published: 2013-03-15
genre: classical
genre: classical-era
isrc code: DEA348302007
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA348302007
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd781273da65c189d63872a647b3e1b819cc1207a0010f90e3a48cf1eaa794078. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEA348302007.
  date published: 2026-06-13T12:47:07Z
audio: Le nozze di Figaro, Act II: Aria: Porgi amor
  type: AudioObject
  additional property: Tempo (BPM)
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    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: 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: Mode Name
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Mozart: Le nozze di Figaro, K. 492, Act 3: Duettino. "Sull'aria" (La Contessa, Susanna)
type: MusicRecording
duration: PT2M28S
duration ms: 148373
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Riccardo Muti
by artist: Kathleen Battle
by artist: Margaret Price
by artist: Wiener Philharmoniker
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
  type: MusicAlbum
  date published: 2013-03-15
genre: classical
genre: classical-era
isrc code: GBAYC8600677
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: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600677
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b3ecaaadcd2785ad5eb3f932fc423296f22a7f6ad5c59fc43e79e8ef71ba31. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC8600677.
  date published: 2026-06-13T12:47:07Z
audio: Mozart: Le nozze di Figaro, K. 492, Act 3: Duettino. "Sull'aria" (La Contessa, Susanna)
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  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 1
  additional property: Danceability
    type: PropertyValue
    value: 0.232
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Puccini: Madama Butterfly, Act 2: "Un bel dì vedremo" (Butterfly)
type: MusicRecording
duration: PT4M44S
duration ms: 284253
explicit: false
by artist: Giacomo Puccini
by artist: Sir John Barbirolli
by artist: Renata Scotto
by artist: Orchestra Del Teatro Dell'Opera Di Roma
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
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  date published: 2013-03-15
isrc code: GBAYC0201550
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
  type: PropertyValue
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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/GBAYC0201550
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dac9bfaea215d14a084909a3760978c23f42a8f546e175e75273e7a72906c04. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC0201550.
  date published: 2026-06-13T12:47:07Z
audio: Puccini: Madama Butterfly, Act 2: "Un bel dì vedremo" (Butterfly)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.175
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Flotow: Martha, Act 3: "Ach, so fromm, ach, so traut"
type: MusicRecording
duration: PT2M59S
duration ms: 179840
explicit: false
by artist: Friedrich von Flotow
by artist: Rolando Villazón
by artist: Munich Radio Orchestra
by artist: Michel Plasson
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
  type: MusicAlbum
  date published: 2013-03-15
isrc code: GBAYC0501614
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/GBAYC0501614
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6572a9046deea01f1c9e502f4c5f7009a8cba529820db3e7d16972d280bc77ff. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC0501614.
  date published: 2026-06-13T12:47:07Z
audio: Flotow: Martha, Act 3: "Ach, so fromm, ach, so traut"
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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Gualtier Maldè!... Caro Nome, Gildas Aria, Ur Rigoletto, Akt I
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duration: PT4M22S
duration ms: 262026
explicit: false
by artist: Giuseppe Verdi
by artist: Margareta Hallin
by artist: Norrköping Symphony Orchestra
by artist: Ulf Bjorlin
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
  type: MusicAlbum
  date published: 2013-03-15
genre: classical
genre: opera
isrc code: SEAMF7100025
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf186a01f9265668cc33c9b1a25afa2d5df5a4a26892cb8ae28a6b81e9251277. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEAMF7100025.
  date published: 2026-06-13T12:47:07Z
audio: Gualtier Maldè!... Caro Nome, Gildas Aria, Ur Rigoletto, Akt I
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Verdi: Rigoletto, Act III: "La donna è mobile"
type: MusicRecording
duration: PT2M38S
duration ms: 158866
explicit: false
by artist: Giuseppe Verdi
by artist: Giuseppe Di Stefano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
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  date published: 2013-03-15
genre: classical
genre: opera
isrc code: GBAYC9702304
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d712315e6303a69438b5c3f3467e8d736b857e5fb9127c64d498d99fa43f0f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC9702304.
  date published: 2026-06-13T12:47:07Z
audio: Verdi: Rigoletto, Act III: "La donna è mobile"
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Rigoletto, Act III: Bella figlia dell'amore (Duca/Maddalena/Gilda/Rigoletto)
type: MusicRecording
duration: PT4M49S
duration ms: 289226
explicit: false
by artist: Giuseppe Verdi
by artist: Giuseppe Di Stefano
by artist: Adriana Lazzarini
by artist: Maria Callas
by artist: Tito Gobbi
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Tullio Serafin
by artist: Orchestra Del Teatro Alla Scala Di Milan
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
  type: MusicAlbum
  date published: 2013-03-15
genre: classical
genre: opera
isrc code: GBAYC9702306
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b79682f7c1ffa5fe7a28c11e0292c3abaf969d480a9cea80c0d2ddaa7294924. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC9702306.
  date published: 2026-06-13T12:47:07Z
audio: Rigoletto, Act III: Bella figlia dell'amore (Duca/Maddalena/Gilda/Rigoletto)
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  additional property: Danceability
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Dvořák: Rusalka, Op. 114, B. 203, Act 1: "Mesicku na nebi hlubokém" (Rusalka)
type: MusicRecording
duration: PT5M55S
duration ms: 355480
explicit: false
by artist: Antonín Dvořák
by artist: Lucia Popp
by artist: Stefan Soltesz
by artist: Munich Radio Orchestra
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
  type: MusicAlbum
  date published: 2013-03-15
genre: classical
genre: late-romantic-era
genre: czech-classical
isrc code: GBAYC8700951
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: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8700951
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69cc9d536fe3f372cbade7ba1fecce7bfad91176cbe40ce933587dfb13703f2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC8700951.
  date published: 2026-06-13T12:47:07Z
audio: Dvořák: Rusalka, Op. 114, B. 203, Act 1: "Mesicku na nebi hlubokém" (Rusalka)
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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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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Charpentier, G.: Louise, Act 3 Scene 1: "Depuis le jour où je me suis donnée" (Louise)
type: MusicRecording
duration: PT4M49S
duration ms: 289066
explicit: false
by artist: Gustave Charpentier
by artist: Angela Gheorghiu
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Richard Armstrong
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
  type: MusicAlbum
  date published: 2013-03-15
genre: opera
isrc code: GBAYC9500724
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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  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9500724
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ee1a920574fa4a2cbba8205e6808016867281334efccca0e50996c351af011. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC9500724.
  date published: 2026-06-13T12:47:07Z
audio: Charpentier, G.: Louise, Act 3 Scene 1: "Depuis le jour où je me suis donnée" (Louise)
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  additional property: Tempo (BPM)
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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: 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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Puccini: Tosca, Act 2 Scene 5: "Vissi d'arte, vissi d'amore" (Tosca)
type: MusicRecording
duration: PT3M17S
duration ms: 197360
explicit: false
by artist: Giacomo Puccini
by artist: Maria Callas
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Victor de Sabata
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
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  date published: 2013-03-15
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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/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0202627
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af4aae47d48dd2491e35a603b7efe9c7c761fb09be10cede821ddec8755433e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC0202627.
  date published: 2026-06-13T12:47:07Z
audio: Puccini: Tosca, Act 2 Scene 5: "Vissi d'arte, vissi d'amore" (Tosca)
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  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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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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Puccini: Tosca, Act III: E lucevan le stelle (Cavaradossi)
type: MusicRecording
duration: PT3M14S
duration ms: 194440
explicit: false
by artist: Giacomo Puccini
by artist: Plácido Domingo
by artist: James Levine
by artist: Philharmonia Orchestra
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
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  date published: 2013-03-15
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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
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Puccini: Tosca, Act III: E lucevan le stelle (Cavaradossi)
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Korngold: Die tote Stadt, Op. 12, Act I: Lied. "Glück, das mir verblied" (Marietta)
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by artist: Erich Wolfgang Korngold
by artist: Kiri Te Kanawa
by artist: Philharmonia Orchestra
by artist: Julius Rudel
in album: Opera - Världens vackraste arior / The Most Beautiful Arias in the World
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  date published: 2013-03-15
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genre: classic-soundtrack
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Korngold: Die tote Stadt, Op. 12, Act I: Lied. "Glück, das mir verblied" (Marietta)
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Les Contes d'Hoffmann (1989 Digital Remaster), Act III: Entr'acte et Barcarolle: Belle nuit, ô nuit d'amour (Une voix/Giulietta/Choeurs)
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duration: PT3M49S
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by artist: Jacques Offenbach
by artist: Nicolai Gedda
by artist: Elisabeth Schwarzkopf
by artist: Victoria de los Ángeles
by artist: Gianna D'Angelo
by artist: Christiane Gayraud
by artist: Jacques Pruvost
by artist: Robert Geay
by artist: George London
by artist: Michel Sénéchal
by artist: Jean Christophe Benoit
by artist: Jean-Pierre Laffage
by artist: Nicola Ghiuselev
by artist: André Mallabrera
by artist: Ernest Blanc
by artist: Renée Faure
by artist: André Cluytens
by artist: Orchestre De La Société Des Concerts Du Conservatoire
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  date published: 2013-03-15
genre: classical
genre: german-romanticism
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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: 2026-06-13T12:47:07Z
audio: Les Contes d'Hoffmann (1989 Digital Remaster), Act III: Entr'acte et Barcarolle: Belle nuit, ô nuit d'amour (Une voix/Giulietta/Choeurs)
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Donizetti: L'Elisir d'amore, Act 2: Una furtiva lagrima
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by artist: Gaetano Donizetti
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by artist: Alceo Galliera
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Donizetti: L'Elisir d'amore, Act 2: Una furtiva lagrima
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La Gioconda (2000 Digital Remaster): Cielo e mar! (Act II)
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: La Gioconda (2000 Digital Remaster): Cielo e mar! (Act II)
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Puccini: Turandot, Act 1: "Signore, ascolta" (Liù)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Puccini: Turandot, Act 1: "Signore, ascolta" (Liù)
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Nessun Dorma - 1989 Remastered Version
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by artist: Choeurs De L'Opera Du Rhin
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Nessun Dorma - 1989 Remastered Version
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Opera Heroes
type: MusicAlbum
date published: 1997-08-01

Verdi: Rigoletto (1955 - Serafin) - Callas Remastered
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track: Verdi: Rigoletto, Act 3: "La donna è mobile" (Duca, Sparafucile, Rigoletto)
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Opera Classics
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track: Die Zauberflöte, K. 620, Act I: Der Vogelfänger bin ich ja (Papageno)
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Verdi: Rigoletto (Callas, Di Stefano, Gobbi / La Scala) (1955)
type: MusicAlbum
date published: 1955

Highlights from Cavalleria Rusticana & I Pagliacci
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date published: 2013-12-09

Mascagni: Cavalleria Rusticana, Extracts - Leoncavallo: Pagliacci, Extracts (Stereo Version)
type: MusicAlbum
date published: 2016

Un Ballo In Maschera
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date published: 2000-01-01