Nicola Martinucci
type: MusicGroup
genre: opera
description: Nicola Martinucci (born 28 March 1941) is an Italian opera singer, particularly noted for his performances in the spinto tenor of roles Calaf in Turandot, Radamès in Aida, and the title role in Andrea
popularity: 15
followers: 267
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album: A To Z Of Opera
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    by artist: Slovak Radio Symphony Orchestra
    by artist: Johannes Wildner
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      date published: 2000-11-03
    popularity: 17
    genre: classical
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album: Great Opera
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album: Opera - 50 of the Best
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  track: Manon Lescaut, Act I: Donna non vidi mai simile a questa!
  track: Gianni Schicchi: O mio babbino caro
  track: Le nozze di Figaro, K. 492, Act I: Aria: Non piu andrai, farfallone amoroso
  track: Turandot, Act III: Nessun dorma!
  track: Carmen: Carmen, Act II: Toreador Song: Votre toast, je peux vous le rendre
  track: Die Zauberflote (The Magic Flute), K. 620, Act II: Der Holle Rache kocht in meinem Herzen
  track: Norma: Norma, Act I: Casta diva
  track: Madama Butterfly, Act II: Humming Chorus
  track: La boheme, Act I: Che gelida manina
  track: La Wally, Act I: Ebben? Ne andro lontana
album: Thrilling Tenor: Best Loved Opera Arias
album: Cinema Classics
album: Il mito dell'opera: Nicola Martinucci, Vol. 2 (Live)
album: Night At The Opera (A)
album: Klassik ohne Krise: Grandioser Gesang
album: Donizetti: Great Love Duets
album: Cinema Classics, Vol. 5
album: Opera's Greatest Moments
album: Classical Music at the Movies: Sci-Fi, Thrillers & Suspense
album: Riccardo Muti Conducts Verdi
album: The A-Z of Opera (2nd Expanded Edition)
album: Nessun Dorma And Other Favourite Italian Tenor Arias
album: Puccini: Madama Butterfly
album: 100 Most Famous Opera Arias
album: Classical One-Hit Wonders
album: Classical Music at the Movies - Sci-Fi, Thrillers & Suspense
album: Opera At The Movies
album: Classics at the Movies: Thrillers
album: A Guided Tour of the Romantic Era, Vol. 14
album: Il mito dell'opera: Nicola Martinucci (Live)
album: Verdi: Otello (Complete)
album: Leoncavallo: Pagliacci
album: Nicola Martinucci : The True Voice of the Opera
album: Best of Opera, Vol. 1
album: Verdi: Aida
album: Verdi - I due Foscari
album: Best Of Opera
album: Donizetti: Poliuto
album: Verdi: I due Foscari

Pagliacci, Act I: Act I: Prologue: Si puo? Si puo? (Tonio)
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by artist: Ruggero Leoncavallo
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by artist: Alexander Rahbari
in album: Leoncavallo: Pagliacci
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  date published: 1992-11-01
genre: italian-opera
genre: italian-romanticism
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  date published: 2026-07-08T03:22:41Z
audio: Pagliacci, Act I: Act I: Prologue: Si puo? Si puo? (Tonio)
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Pagliacci, Act I Scene 3: Act I Scene 3: Arioso: Vesti la giubba (Canio)
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audio: Pagliacci, Act I Scene 3: Act I Scene 3: Arioso: Vesti la giubba (Canio)
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Pagliacci, Act I Scene 1: Act I Scene 1: Son qua! Son qua! Ritornano! (Villagers)
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Pagliacci, Act I Scene 1: Act I Scene 1: Scene and Chorus of the Bells: I zampognari! (Villagers)
type: MusicRecording
duration: PT3M49S
duration ms: 229306
explicit: false
by artist: Ruggero Leoncavallo
by artist: Miroslav Dvorský
by artist: Miriam Gauci
by artist: Nicola Martinucci
by artist: Boje Skovhus
by artist: Eduard Tumagian
by artist: Slovak Philharmonic Chorus
by artist: Slovak Radio Symphony Orchestra
by artist: Alexander Rahbari
in album: Leoncavallo: Pagliacci
  type: MusicAlbum
  date published: 1992-11-01
genre: italian-opera
genre: italian-romanticism
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4bd41db5417c04fee207b21db99daedea02909b8e46813abd8a26cc23399408. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290306.
  date published: 2026-07-30T09:57:33Z
audio: Pagliacci, Act I Scene 1: Act I Scene 1: Scene and Chorus of the Bells: I zampognari! (Villagers)
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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: Valence (Positivity)
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  additional property: Loudness (dB)
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isrc code: HKI199290306
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
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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: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Pagliacci, Act I Scene 4: Recitar! ... Vesti la giubba
type: MusicRecording
duration: PT3M20S
duration ms: 200000
explicit: false
by artist: Ruggero Leoncavallo
by artist: Nicola Martinucci
by artist: Slovak Radio Symphony Orchestra
by artist: Alexander Rahbari
in album: Best of Opera, Vol. 1
  type: MusicAlbum
  date published: 1995-04-20
genre: italian-opera
genre: italian-romanticism
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf861d8533471a39e5facbd1d631b5da446ab1183ab5e1465a9a2620ad91a503a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/HKI199320707.
  date published: 2026-07-31T18:48:12Z
audio: Pagliacci, Act I Scene 4: Recitar! ... Vesti la giubba
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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isrc code: HKI199320707
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199320707
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Speechiness
type: PropertyValue
value: 0.034

Acousticness
type: PropertyValue
value: 0.943

Instrumentalness
type: PropertyValue
value: 0.934

Liveness
type: PropertyValue
value: 0.106

Valence (Positivity)
type: PropertyValue
value: 0.318

Loudness (dB)
type: PropertyValue
value: -20.629

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Manon Lescaut, Act I: Donna non vidi mai simile a questa!
type: MusicRecording
duration: PT2M35S
duration ms: 155200
explicit: false
by artist: Giacomo Puccini
by artist: Kaludi Kaludov
by artist: Belgian Radio and Television Philharmonic Orchestra
by artist: Alexander Rahbari
in album: Opera - 50 of the Best
  type: MusicAlbum
  date published: 2012-10-01
isrc code: HKI199290107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T22:56:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7ab5213d6a14a180866aee7ad3aeb1fa45b9274c357a2cb301f3fdebbc8a7bcd
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/HKI199290107
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 0x7ab5213d6a14a180866aee7ad3aeb1fa45b9274c357a2cb301f3fdebbc8a7bcd. 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/HKI199290107.
  date published: 2026-07-08T03:53:27Z
audio: Manon Lescaut, Act I: Donna non vidi mai simile a questa!
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.06
  additional property: Liveness
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.815
  additional property: Key Name
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  additional property: Mode Name
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Gianni Schicchi: O mio babbino caro
type: MusicRecording
duration: PT2M9S
duration ms: 129066
explicit: false
by artist: Giacomo Puccini
by artist: Tatiana Lisnic
by artist: Malaga Symphony Orchestra
by artist: Alexander Rahbari
in album: Opera - 50 of the Best
  type: MusicAlbum
  date published: 2012-10-01
isrc code: HKI190301808
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T10:49:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x02d563709318ec90680026dd48ec4e3ab816d290066c4d4aff352fba8c1c1f14
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/HKI190301808
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 0x02d563709318ec90680026dd48ec4e3ab816d290066c4d4aff352fba8c1c1f14. 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/HKI190301808.
  date published: 2026-07-08T08:56:20Z
audio: Gianni Schicchi: O mio babbino caro
  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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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
    value: 0.12
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.519
  additional property: Key Name
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  additional property: Mode Name
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Le nozze di Figaro, K. 492, Act I: Aria: Non piu andrai, farfallone amoroso
type: MusicRecording
duration: PT4M5S
duration ms: 245373
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Opera - 50 of the Best
  type: MusicAlbum
  date published: 2012-10-01
genre: classical
genre: classical-era
isrc code: HKI190348120
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:38:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x31bd9a92eecd30dc32a0c2a9f4ec88d7fe97feb2f8865ded3b2953c4035d13e3
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/HKI190348120
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 0x31bd9a92eecd30dc32a0c2a9f4ec88d7fe97feb2f8865ded3b2953c4035d13e3. 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/HKI190348120.
  date published: 2026-07-08T03:53:27Z
audio: Le nozze di Figaro, K. 492, Act I: Aria: Non piu andrai, farfallone amoroso
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.507
  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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Turandot, Act III: Nessun dorma!
type: MusicRecording
duration: PT2M31S
duration ms: 151920
explicit: false
by artist: Giacomo Puccini
by artist: Lando Bartolini
by artist: Bilbao Choral Society
by artist: Malaga Philharmonic Orchestra
by artist: Alexander Rahbari
in album: Opera - 50 of the Best
  type: MusicAlbum
  date published: 2012-10-01
isrc code: HKI190159310
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T00:36:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc910e47fb31b3fd2fd5f9fcb401bc07461314c13406b10a6fc5d460f81bfc252
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/HKI190159310
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 0xc910e47fb31b3fd2fd5f9fcb401bc07461314c13406b10a6fc5d460f81bfc252. 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/HKI190159310.
  date published: 2026-07-07T18:39:05Z
audio: Turandot, Act III: Nessun dorma!
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.223
  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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Carmen: Carmen, Act II: Toreador Song: Votre toast, je peux vous le rendre
type: MusicRecording
duration: PT5M0S
duration ms: 300000
explicit: false
by artist: Georges Bizet
by artist: Alan Titus
by artist: Graciela Alperyn
by artist: Slovak Philharmonic Chorus
by artist: Slovak Radio Symphony Orchestra
by artist: Alexander Rahbari
in album: Opera - 50 of the Best
  type: MusicAlbum
  date published: 2012-10-01
genre: classical
genre: opera
isrc code: HKI199220606
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T18:29:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd8883b1a6d19fb9880e337a5cf3cd641bfb1e3d798039f554e3e0e6905c9b83a
additional property: OTSHash
additional property: OTSBitcoinBlock
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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/HKI199220606
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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Die Zauberflote (The Magic Flute), K. 620, Act II: Der Holle Rache kocht in meinem Herzen
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Norma: Norma, Act I: Casta diva
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Madama Butterfly, Act II: Humming Chorus
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La boheme, Act I: Che gelida manina
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La Wally, Act I: Ebben? Ne andro lontana
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Thrilling Tenor: Best Loved Opera Arias
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Cinema Classics
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Il mito dell'opera: Nicola Martinucci, Vol. 2 (Live)
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Night At The Opera (A)
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    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 0x1327f5067d49c34df13982eda50bd2f1824517d607965db07a229f28774e8173. 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/HKI199992802.
    date published: 2026-07-08T08:56:20Z
  audio: Die Zauberflote (The Magic Flute), K. 620, Act II: Der Holle Rache... (Queen of the Night)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 150.217
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.427
    additional property: Energy
      type: PropertyValue
      value: 0.139
    additional property: Speechiness
      type: PropertyValue
      value: 0.049
    additional property: Acousticness
      type: PropertyValue
      value: 0.964
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.1
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.405
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.061
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Lakmé: Blumenduett (Lara Croft Tomb Raider): Flower Duet (Lakmé)
  type: MusicRecording
  duration: PT6M37S
  duration ms: 397440
  explicit: false
  by artist: Léo Delibes
  by artist: Adriana Kohútková
  by artist: Denisa Šlepkovská
  by artist: Slovak Radio Symphony Orchestra
  by artist: Johannes Wildner
  in album: Night At The Opera (A)
    type: MusicAlbum
    date published: 1999-04-26
  genre: classical
  isrc code: HKI199992814
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T14:04:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb04d2a9eac21331796b0e13df342caa9b45971201b687aa795662109ab7a9221
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199992814
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04d2a9eac21331796b0e13df342caa9b45971201b687aa795662109ab7a9221. 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/HKI199992814.
    date published: 2026-07-02T03:55:08Z
  audio: Lakmé: Blumenduett (Lara Croft Tomb Raider): Flower Duet (Lakmé)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 109.461
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 6
    additional property: Danceability
      type: PropertyValue
      value: 0.305
    additional property: Energy
      type: PropertyValue
      value: 0.034
    additional property: Speechiness
      type: PropertyValue
      value: 0.048
    additional property: Acousticness
      type: PropertyValue
      value: 0.965
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.069
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.038
    additional property: Loudness (dB)
      type: PropertyValue
      value: -27.696
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Tristan und Isolde: Vorspiel (Excalibur): Liebestod (Tristan und Isolde)
  type: MusicRecording
  duration: PT7M18S
  duration ms: 438360
  explicit: false
  by artist: Richard Wagner
  by artist: Polish National Radio Symphony Orchestra
  by artist: Johannes Wildner
  in album: Night At The Opera (A)
    type: MusicAlbum
    date published: 1999-04-26
  genre: classical
  genre: opera
  isrc code: HKI199992818
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T16:22:12+00:00
  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: Tristan und Isolde: Vorspiel (Excalibur): Liebestod (Tristan und Isolde)

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xf519c77b6f4c1f51f0494187631b9203e5b7f4219188555c08970b9172614b5e

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 953528

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/953528

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199992818

OTSTimestamp
type: PropertyValue
value: 2026-06-13T15:41:10Z

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 0xf519c77b6f4c1f51f0494187631b9203e5b7f4219188555c08970b9172614b5e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199992818.
date published: 2026-06-13T15:41:10Z

Tristan und Isolde: Vorspiel (Excalibur): Liebestod (Tristan und Isolde)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 95.21
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: 0.065
additional property: Energy
  type: PropertyValue
  value: 0.249
additional property: Speechiness
  type: PropertyValue
  value: 0.041
additional property: Acousticness
  type: PropertyValue
  value: 0.94
additional property: Instrumentalness
  type: PropertyValue
  value: 0.906
additional property: Liveness
  type: PropertyValue
  value: 0.207
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.033
additional property: Loudness (dB)
  type: PropertyValue
  value: -17.515
additional property: Key Name
  type: PropertyValue
  value: B
additional property: Mode Name
  type: PropertyValue
  value: Major

Klassik ohne Krise: Grandioser Gesang
type: MusicAlbum
date published: 2013-10-29
track: Lakmé: Blumenduett (Lara Croft Tomb Raider): Lakmé, 1. Akt: Sous le dôme épais, "Blumenduett"
  type: MusicRecording
  duration: PT5M34S
  duration ms: 334800
  explicit: false
  by artist: Léo Delibes
  by artist: Adriana Kohútková
  by artist: Denisa Šlepkovská
  by artist: Slovak Radio Symphony Orchestra
  by artist: Johannes Wildner
  in album: Klassik ohne Krise: Grandioser Gesang
    type: MusicAlbum
    date published: 2013-10-29
  genre: classical
  isrc code: HKI190110703
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T16:53:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4e95f2c95be7ce4a824c9e8de3b7cb011289a7c00f813dd7af4a16bd3be69dfa
  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/HKI190110703
  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 0x4e95f2c95be7ce4a824c9e8de3b7cb011289a7c00f813dd7af4a16bd3be69dfa. 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/HKI190110703.
    date published: 2026-07-08T03:22:41Z
  audio: Lakmé: Blumenduett (Lara Croft Tomb Raider): Lakmé, 1. Akt: Sous le dôme épais, "Blumenduett"
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 166.059
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 6
    additional property: Danceability
      type: PropertyValue
      value: 0.224
    additional property: Energy
      type: PropertyValue
      value: 0.043
    additional property: Speechiness
      type: PropertyValue
      value: 0.054
    additional property: Acousticness
      type: PropertyValue
      value: 0.968
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.102
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.039
    additional property: Loudness (dB)
      type: PropertyValue
      value: -26.899
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Rusalka, Op. 114, B. 203, 1. Akt: Lied an den Mond
  type: MusicRecording
  duration: PT5M59S
  duration ms: 359000
  explicit: false
  by artist: Antonín Dvořák
  by artist: Jana Valášková
  by artist: Slovak Radio Symphony Orchestra
  by artist: Johannes Wildner
  in album: Klassik ohne Krise: Grandioser Gesang
    type: MusicAlbum
    date published: 2013-10-29
  genre: classical
  genre: late-romantic-era
  genre: czech-classical
  isrc code: HKI199320703
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-21T20:59:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x09d6f4649c39f4ae58ad3ffe8694eeb81cb10be66a0626846d5e927ac487ee15
  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/HKI199320703
  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 0x09d6f4649c39f4ae58ad3ffe8694eeb81cb10be66a0626846d5e927ac487ee15. 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/HKI199320703.
    date published: 2026-07-08T08:56:20Z
  audio: Rusalka, Op. 114, B. 203, 1. Akt: Lied an den Mond
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 142.057
    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: 0.229
    additional property: Energy
      type: PropertyValue
      value: 0.038
    additional property: Speechiness
      type: PropertyValue
      value: 0.048
    additional property: Acousticness
      type: PropertyValue
      value: 0.971
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.097
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.038
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.829
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Madama Butterfly, 2. Akt: Summchor
  type: MusicRecording
  duration: PT2M51S
  duration ms: 171000
  explicit: false
  by artist: Giacomo Puccini
  by artist: Slovak Radio Symphony Orchestra
  by artist: Slovak Philharmonic Chorus
  by artist: Alexander Rahbari
  in album: Klassik ohne Krise: Grandioser Gesang
    type: MusicAlbum
    date published: 2013-10-29
  isrc code: HKI199190612
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-05T20:57:09+00:00
  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: Madama Butterfly, 2. Akt: Summchor
track: Tosca: Tosca, 3. Akt: E lucevan le stelle
track: Der Freischütz, J. 277, 3. Akt: Was gleicht wohl auf Erden, "Jägerchor"

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x338284691c37e4b37778bf6e2d7d807a4ffc7176bcef648a362f8a29613712e4

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
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/HKI199190612

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 0x338284691c37e4b37778bf6e2d7d807a4ffc7176bcef648a362f8a29613712e4. 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/HKI199190612.
date published: 2026-07-08T03:53:27Z

Madama Butterfly, 2. Akt: Summchor
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 105.2
additional property: Musical Key
  type: PropertyValue
  value: 10
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.156
additional property: Energy
  type: PropertyValue
  value: 0.001
additional property: Speechiness
  type: PropertyValue
  value: 0.047
additional property: Acousticness
  type: PropertyValue
  value: 0.881
additional property: Instrumentalness
  type: PropertyValue
  value: 0.939
additional property: Liveness
  type: PropertyValue
  value: 0.098
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.037
additional property: Loudness (dB)
  type: PropertyValue
  value: -50.848
additional property: Key Name
  type: PropertyValue
  value: Bb
additional property: Mode Name
  type: PropertyValue
  value: Major

Tosca: Tosca, 3. Akt: E lucevan le stelle
type: MusicRecording
duration: PT2M39S
duration ms: 159373
explicit: false
by artist: Giacomo Puccini
by artist: Giorgio Lamberti
by artist: Slovak Radio Symphony Orchestra
by artist: Alexander Rahbari
in album: Klassik ohne Krise: Grandioser Gesang
  type: MusicAlbum
  date published: 2013-10-29
isrc code: HKI199320702
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:24:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1bf37466efdd212a92776a1b0718c9e853ce2eacbef8e891fe307e1ead65326a
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/HKI199320702
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 0x1bf37466efdd212a92776a1b0718c9e853ce2eacbef8e891fe307e1ead65326a. 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/HKI199320702.
  date published: 2026-07-08T03:53:27Z
audio: Tosca: Tosca, 3. Akt: E lucevan le stelle
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.257
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.197
  additional property: Energy
    type: PropertyValue
    value: 0.047
  additional property: Speechiness
    type: PropertyValue
    value: 0.077
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.129
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.19
  additional property: Loudness (dB)
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subject of: OpenTimestamps Proof of Existence
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Cinema Classics, Vol. 5
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track: Nabucco: Nabucco, Act III: Va pensiero, "Chorus of the Hebrew Slaves"
track: Madama Butterfly: Madama Butterfly, Act II: Humming Chorus
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

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Nabucco: Nabucco, Act III: Va pensiero, "Chorus of the Hebrew Slaves"
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Classical Music at the Movies: Sci-Fi, Thrillers & Suspense
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Riccardo Muti Conducts Verdi
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The A-Z of Opera (2nd Expanded Edition)
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Nessun Dorma And Other Favourite Italian Tenor Arias
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Puccini: Madama Butterfly
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100 Most Famous Opera Arias
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Classical One-Hit Wonders
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Classical Music at the Movies - Sci-Fi, Thrillers & Suspense
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A Guided Tour of the Romantic Era, Vol. 14
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Il mito dell'opera: Nicola Martinucci (Live)
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Verdi: Otello (Complete)
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Cavalleria Rusticana: Intermezzo
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Tannhauser, Act III: Begluckt darf nun dich, "Pilgrims' Chorus"
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Die Zauberflote (The Magic Flute), K. 620, Act II: "Der Holle Rache"
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La traviata, Act I: Libiamo ne'lieti calici, "Brindisi"
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Rigoletto, Act IV: Quartet: Bella figlia dell’amore
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Nabucco, Act III: Va, pensiero, "Chorus of Hebrew Slaves"
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Verdi: Aida
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date published: 1974-01-01

Verdi - I due Foscari
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Best Of Opera
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Donizetti: Poliuto
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Verdi: I due Foscari
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