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      date published: 2026-07-02T03:30:09Z
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  track: Merope: Sposa, non mi conosci
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  track: Vesperae solennes de confessore in C, K.339: Laudate Dominum omnes gentes
  track: Il trionfo del tempo e del disinganno, HWV 46a: "Lascia la spina cogli la rosa"
  track: Fac ut portem Christi mortem
  track: Il Farnace / Act 2 Scene 5: Gelido in ogni vena
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  track: La Morte d'Abel: Quel buon pastor son io
  track: Panis Angelicus: Panis Angelicus
  track: Le nozze di Figaro, K. 492, Act II: No. 12, Voi che sapete
  track: Requiem, Op. 48: Pie Jesu
  track: Don Giovanni, K.527 / Act 1: "Là ci darem la mano"
  track: La Sonnambula / Act 2: Ah! non credea mirarti si presto estinto, o fiore
  track: Ines di Castro: "Cari giorni" (Romanza der Ines)
  track: Il barbiere di Siviglia / Act 1: "Una voce poco fa"
  track: Norma / Act 1: "Casta Diva"
  track: L'amico Fritz / Act 2: Tutto tace
album: Maria
album: Romantic Opera
album: Casta Diva
album: The Classical Album 2011
album: Prima Donna - The First Ladies Of Opera
album: Divos & Divas
album: Divos & Divas (2 CDs)
track: Bellini: Norma / Act 1: "Casta Diva"
track: Bellini: La sonnambula / Act 2: "Ah, non credea mirarti"

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Vesperae solennes de confessore in C, K.339: Laudate Dominum omnes gentes
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  date published: 2026-06-13T17:25:41Z
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Il trionfo del tempo e del disinganno, HWV 46a: "Lascia la spina cogli la rosa"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
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Fac ut portem Christi mortem
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  date published: 2026-07-08T03:20:19Z
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Il Farnace / Act 2 Scene 5: Gelido in ogni vena
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Il Farnace / Act 2 Scene 5: Gelido in ogni vena
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Ave Maria: arr. from Bach's Prelude No.1 BWV 846: Ave Maria
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by artist: Charles Gounod
by artist: Cecilia Bartoli
by artist: Orchestra dell'Accademia Nazionale di Santa Cecilia
by artist: Myung-Whun Chung
by artist: Cinzia Maurizio
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genre: opera
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Ave Maria: arr. from Bach's Prelude No.1 BWV 846: Ave Maria
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La Morte d'Abel: Quel buon pastor son io
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by artist: Cecilia Bartoli
by artist: Il Giardino Armonico
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: La Morte d'Abel: Quel buon pastor son io
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Panis Angelicus: Panis Angelicus
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by artist: Cecilia Bartoli
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genre: chamber-music
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Panis Angelicus: Panis Angelicus
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Le nozze di Figaro, K. 492, Act II: No. 12, Voi che sapete
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Le nozze di Figaro, K. 492, Act II: No. 12, Voi che sapete
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Requiem, Op. 48: Pie Jesu
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Requiem, Op. 48: Pie Jesu
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Don Giovanni, K.527 / Act 1: "Là ci darem la mano"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T11:38:34Z
audio: Don Giovanni, K.527 / Act 1: "Là ci darem la mano"
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La Sonnambula / Act 2: Ah! non credea mirarti si presto estinto, o fiore
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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
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  date published: 2026-07-02T05:09:12Z
audio: La Sonnambula / Act 2: Ah! non credea mirarti si presto estinto, o fiore
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Ines di Castro: "Cari giorni" (Romanza der Ines)
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duration ms: 250546
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by artist: Cecilia Bartoli
by artist: Orchestra La Scintilla
by artist: Ádám Fischer
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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
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  date published: 2026-07-07T18:39:05Z
audio: Ines di Castro: "Cari giorni" (Romanza der Ines)
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Il barbiere di Siviglia / Act 1: "Una voce poco fa"
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duration: PT5M37S
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by artist: Gioachino Rossini
by artist: Cecilia Bartoli
by artist: Orchestra La Scintilla
by artist: Ádám Fischer
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genre: classical
genre: opera
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd086f8c526e082a0b5bdad65edf567d3546c93ab3059bba302ed31b856c9a4a7. 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/GBBBA0644290.
  date published: 2026-07-02T03:55:08Z
audio: Il barbiere di Siviglia / Act 1: "Una voce poco fa"
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Norma / Act 1: "Casta Diva"
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duration: PT6M47S
duration ms: 407866
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by artist: Vincenzo Bellini
by artist: Cecilia Bartoli
by artist: International Chamber Soloists
by artist: Orchestra La Scintilla
by artist: Ádám Fischer
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genre: opera
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Norma / Act 1: "Casta Diva"
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L'amico Fritz / Act 2: Tutto tace
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duration: PT4M12S
duration ms: 252786
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by artist: Pietro Mascagni
by artist: Cecilia Bartoli
by artist: Luciano Pavarotti
by artist: London Voices
by artist: Orchestra Sinfonica di Milano Giuseppe Verdi
by artist: Riccardo Chailly
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genre: opera
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T18:39:05Z
audio: L'amico Fritz / Act 2: Tutto tace
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Maria
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date published: 2007-01-01
track: Ines di Castro: "Cari giorni" (Romanza der Ines)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:30:09Z
  audio: Ines di Castro: "Cari giorni" (Romanza der Ines)
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track: El poeta calculista: "Yo que soy contrabandista"
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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track: La sonnambula / Act 2: "Ah, non credea mirarti"
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  genre: opera
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: La sonnambula / Act 2: "Ah, non credea mirarti"
track: La sonnambula / Act 2: "Ah, non giunge uman pensiero"
track: Variations on 'Tyrolienne'
track: Rataplan
track: "Dopo tante e tante pene" (After Rossini's "Tancredi")
track: Clari: "Come dolce a me favelli"
track: Norma / Act 1: "Casta Diva"
track: Il barbiere di Siviglia / Act 1: "Una voce poco fa"

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OTSBitcoinBlock
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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/GBBBA0644160

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 0xe4abb96eee052f8d8e500e5a140571693860f482e68642827dfadb75912ec77e. 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/GBBBA0644160.
date published: 2026-06-13T15:41:10Z

La sonnambula / Act 2: "Ah, non credea mirarti"
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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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La sonnambula / Act 2: "Ah, non giunge uman pensiero"
type: MusicRecording
duration: PT3M22S
duration ms: 202533
explicit: false
by artist: Vincenzo Bellini
by artist: Cecilia Bartoli
by artist: International Chamber Soloists
by artist: Orchestra La Scintilla
by artist: Ádám Fischer
in album: Maria
  type: MusicAlbum
  date published: 2007-01-01
genre: opera
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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/GBBBA0644170
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 0x30bd457f89ba843e8483d3d59ecd587a2119a23e30709785872921d63b20dca8. 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/GBBBA0644170.
  date published: 2026-07-08T03:20:19Z
audio: La sonnambula / Act 2: "Ah, non giunge uman pensiero"
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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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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Variations on 'Tyrolienne'
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duration: PT7M23S
duration ms: 443106
explicit: false
by artist: Johann Nepomuk Hummel
by artist: Cecilia Bartoli
by artist: Orchestra La Scintilla
by artist: Ádám Fischer
in album: Maria
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  date published: 2007-01-01
isrc code: GBBBA0644180
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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/956857
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0644180
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T01:26:17Z
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 0xa4ee9078e5d5f629ba6e8f94dbb7a58759474e99ab8d32309694c4a20711abc4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBBBA0644180.
  date published: 2026-07-06T01:26:17Z
audio: Variations on 'Tyrolienne'
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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: Danceability
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  additional property: Energy
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  additional property: Speechiness
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Rataplan
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duration: PT2M24S
duration ms: 144880
explicit: false
by artist: Maria Malibran
by artist: Cecilia Bartoli
by artist: Orchestra La Scintilla
by artist: Ádám Fischer
in album: Maria
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0644200
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
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  date published: 2026-07-08T03:20:19Z
audio: Rataplan
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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"Dopo tante e tante pene" (After Rossini's "Tancredi")
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duration: PT3M13S
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explicit: false
by artist: Giovanni Pacini
by artist: Cecilia Bartoli
by artist: Orchestra La Scintilla
by artist: Ádám Fischer
in album: Maria
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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
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: "Dopo tante e tante pene" (After Rossini's "Tancredi")
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  additional property: Danceability
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  additional property: Speechiness
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Clari: "Come dolce a me favelli"
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duration: PT4M36S
duration ms: 276120
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by artist: Cecilia Bartoli
by artist: Orchestra La Scintilla
by artist: Ádám Fischer
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additional property: CopyrightID
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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
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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
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  date published: 2026-07-08T03:20:19Z
audio: Clari: "Come dolce a me favelli"
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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Norma / Act 1: "Casta Diva"
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duration: PT6M42S
duration ms: 402960
explicit: false
by artist: Vincenzo Bellini
by artist: Cecilia Bartoli
by artist: International Chamber Soloists
by artist: Orchestra La Scintilla
by artist: Ádám Fischer
in album: Maria
  type: MusicAlbum
  date published: 2007-01-01
genre: opera
isrc code: GBBBA0644270
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
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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
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  date published: 2026-06-13T17:25:41Z
audio: Norma / Act 1: "Casta Diva"
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Il barbiere di Siviglia / Act 1: "Una voce poco fa"
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duration: PT5M35S
duration ms: 335786
explicit: false
by artist: Gioachino Rossini
by artist: Cecilia Bartoli
by artist: Orchestra La Scintilla
by artist: Ádám Fischer
in album: Maria
  type: MusicAlbum
  date published: 2007-01-01
genre: classical
genre: opera
isrc code: GBBBA0644290
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
  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd086f8c526e082a0b5bdad65edf567d3546c93ab3059bba302ed31b856c9a4a7. 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/GBBBA0644290.
  date published: 2026-07-02T03:55:08Z
audio: Il barbiere di Siviglia / Act 1: "Una voce poco fa"
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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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Romantic Opera
type: MusicAlbum
date published: 2022-02-15
track: Turandot / Act 3: "Nessun dorma!" - Remastered 2013
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  by artist: Luciano Pavarotti
  by artist: John Alldis Choir
  by artist: Wandsworth School Boys Choir
  by artist: London Philharmonic Orchestra
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071301260
  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
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fa3ed33f2cf42ddb8cdfc0e9b13f433ab9c773d1a04637ee1fa15a17982f5c. 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/GBF071301260.
    date published: 2026-07-07T18:39:05Z
  audio: Turandot / Act 3: "Nessun dorma!" - Remastered 2013
    type: AudioObject
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
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    additional property: Speechiness
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  by artist: Giuseppe Verdi
  by artist: Luciano Pavarotti
  by artist: Vienna Volksoper Orchestra
  by artist: Leone Magiera
  by artist: A. Ghislanzoni
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  popularity: 31
  genre: classical
  genre: opera
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    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 0x9abf4a1f60015107f1a7530199fb3147f039f34af4d77fd4e1289289d02f86ba. 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/GBF077211750.
    date published: 2026-06-13T17:25:41Z
  audio: Aida / Act 1: "Celeste Aida"
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    additional property: Valence (Positivity)
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track: Gianni Schicchi: O mio babbino caro
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  by artist: Renée Fleming
  by artist: London Philharmonic Orchestra
  by artist: Sir Charles Mackerras
  in album: Romantic Opera
    type: MusicAlbum
    date published: 2022-02-15
  popularity: 3
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  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: Gianni Schicchi: O mio babbino caro
track: Don Giovanni, K. 527, Act I: No. 7, Duet. Là ci darem la mano - Live at Royal Festival Hall, London, 1996
track: La Wally / Act 1: "Ebben? Ne andrò lontana"
track: La bohème, SC 67, Act II: Quando men vo
track: Lakmé / Act 1: "Viens, Mallika, ... Dôme épais"
track: Les pêcheurs de perles, WD 13 / Act 1: "Au fond du temple saint"
track: Tosca / Act 2: "Vissi d'arte, vissi d'amore"
track: L'elisir d'amore / Act 2: "Una furtiva lagrima"
track: La traviata / Act 1: "Follie! Delirio vano è questo!" - "Sempre libera"
track: La traviata / Act 1: "Libiamo ne' lieti calici" (Brindisi)
track: Les pêcheurs de perles / Act I: Je crois entendre encore

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

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBB1400001

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1a63acc8ae123ab1f0e15eb515af7b36707e1c875e60ff5af8ba63a94972ff. 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/GBBBB1400001.
date published: 2026-07-08T03:20:19Z

Gianni Schicchi: O mio babbino caro
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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Don Giovanni, K. 527, Act I: No. 7, Duet. Là ci darem la mano - Live at Royal Festival Hall, London, 1996
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duration: PT2M52S
duration ms: 172866
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by artist: Wolfgang Amadeus Mozart
by artist: Monica Groop
by artist: Bryn Terfel
by artist: London Philharmonic Orchestra
by artist: Sir Georg Solti
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popularity: 3
genre: classical
genre: classical-era
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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: 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d0a4dc8acf559d6a437eecb7d1cdf9151e12414522de32f5fc8694fce65b33. 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/GBF079643413.
  date published: 2026-07-08T03:22:41Z
audio: Don Giovanni, K. 527, Act I: No. 7, Duet. Là ci darem la mano - Live at Royal Festival Hall, London, 1996
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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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  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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La Wally / Act 1: "Ebben? Ne andrò lontana"
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duration: PT3M40S
duration ms: 220522
explicit: false
by artist: Alfredo Catalani
by artist: Angela Gheorghiu
by artist: Orchestra del Teatro Regio di Torino
by artist: John Mauceri
in album: Romantic Opera
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  date published: 2022-02-15
popularity: 3
genre: opera
isrc code: GBF079541401
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
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079541401
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501ae9ecf032a7dc6fb4bca662e17a67706abea8d11c9127e9cb1d7abd6b213c. 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/GBF079541401.
  date published: 2026-07-08T03:53:27Z
audio: La Wally / Act 1: "Ebben? Ne andrò lontana"
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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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duration ms: 166826
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by artist: Renée Fleming
by artist: London Philharmonic Orchestra
by artist: Sir Charles Mackerras
in album: Romantic Opera
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popularity: 3
isrc code: GBBBB1400003
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
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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
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  date published: 2026-07-08T03:22:41Z
audio: La bohème, SC 67, Act II: Quando men vo
  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
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
    value: 0.72
  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.704
  additional property: Key Name
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Lakmé / Act 1: "Viens, Mallika, ... Dôme épais"
type: MusicRecording
duration: PT6M0S
duration ms: 360733
explicit: false
by artist: Léo Delibes
by artist: Dame Joan Sutherland
by artist: Jane Berbié
by artist: Orchestre Philharmonique de Monte-Carlo
by artist: Richard Bonynge
in album: Romantic Opera
  type: MusicAlbum
  date published: 2022-02-15
popularity: 3
genre: classical
isrc code: GBF076710340
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x614bb3f61bcd9ffda9aab7f2b2217ef1ace9d926709763e6d36d0792004c647e
additional property: OTSHash
additional property: OTSBitcoinBlock
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  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/GBF076710340
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 0x614bb3f61bcd9ffda9aab7f2b2217ef1ace9d926709763e6d36d0792004c647e. 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/GBF076710340.
  date published: 2026-07-08T03:53:27Z
audio: Lakmé / Act 1: "Viens, Mallika, ... Dôme épais"
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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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Les pêcheurs de perles, WD 13 / Act 1: "Au fond du temple saint"
type: MusicRecording
duration: PT6M36S
duration ms: 396573
explicit: false
by artist: Georges Bizet
by artist: Luciano Pavarotti
by artist: Nicolai Ghiaurov
by artist: National Philharmonic Orchestra
by artist: Robin Stapleton
in album: Romantic Opera
  type: MusicAlbum
  date published: 2022-02-15
popularity: 3
genre: classical
genre: opera
isrc code: GBF077610750
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
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077610750
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 0x38bee8b24af9652f022a80d250520aea3a71801ae957ffca5064281ce47ab982. 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/GBF077610750.
  date published: 2026-07-08T03:20:19Z
audio: Les pêcheurs de perles, WD 13 / Act 1: "Au fond du temple saint"
  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
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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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Tosca / Act 2: "Vissi d'arte, vissi d'amore"
type: MusicRecording
duration: PT3M22S
duration ms: 202139
explicit: false
by artist: Giacomo Puccini
by artist: Kiri Te Kanawa
by artist: National Philharmonic Orchestra
by artist: Sir Georg Solti
in album: Romantic Opera
  type: MusicAlbum
  date published: 2022-02-15
popularity: 4
isrc code: GBF078612050
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:38:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc06a0cc5002ad42a35eb031d48adc6fe9f2c26abd0f07c7a930785d8228f0e04
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/GBF078612050
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 0xc06a0cc5002ad42a35eb031d48adc6fe9f2c26abd0f07c7a930785d8228f0e04. 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/GBF078612050.
  date published: 2026-07-08T08:56:20Z
audio: Tosca / Act 2: "Vissi d'arte, vissi d'amore"
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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    value: 3
  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
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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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    value: -20.717
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
    value: Major

L'elisir d'amore / Act 2: "Una furtiva lagrima"
type: MusicRecording
duration: PT4M12S
duration ms: 252613
explicit: false
by artist: Gaetano Donizetti
by artist: Joseph Calleja
by artist: Academy of St. Martin in the Fields
by artist: Carlo Rizzi
in album: Romantic Opera
  type: MusicAlbum
  date published: 2022-02-15
popularity: 2
genre: opera
isrc code: GBBBA0541530
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T21:39:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2420060468e5a42a9541c92b0abdaef9efd2fb6ac1b24cfc7cacb806f0c0ada
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/GBBBA0541530
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 0xc2420060468e5a42a9541c92b0abdaef9efd2fb6ac1b24cfc7cacb806f0c0ada. 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/GBBBA0541530.
  date published: 2026-07-08T08:56:20Z
audio: L'elisir d'amore / Act 2: "Una furtiva lagrima"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.504
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.266
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.078
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.454
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

La traviata / Act 1: "Follie! Delirio vano è questo!" - "Sempre libera"
type: MusicRecording
duration: PT4M38S
duration ms: 278320
explicit: false
by artist: Giuseppe Verdi
by artist: Kiri Te Kanawa
by artist: Alfredo Kraus
by artist: Orchestra del Maggio Musicale Fiorentino
by artist: Zubin Mehta
in album: Romantic Opera
  type: MusicAlbum
  date published: 2022-02-15
popularity: 6
genre: classical
genre: opera
isrc code: NLA509104309
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T13:53:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x282890ccb0c342a5184b5acb2f848ddd9e2e7f60a79b974e7a3e732f22a8411a
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/NLA509104309
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 0x282890ccb0c342a5184b5acb2f848ddd9e2e7f60a79b974e7a3e732f22a8411a. 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/NLA509104309.
  date published: 2026-07-08T03:53:27Z
audio: La traviata / Act 1: "Follie! Delirio vano è questo!" - "Sempre libera"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.472
  additional property: Musical Key
    type: PropertyValue
    value: 8
  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: 0.406
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.464
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
    value: Major

La traviata / Act 1: "Libiamo ne' lieti calici" (Brindisi)
type: MusicRecording
duration: PT2M59S
duration ms: 179333
explicit: false
by artist: Giuseppe Verdi
by artist: Luciano Pavarotti
by artist: Dame Joan Sutherland
by artist: The London Opera Chorus
by artist: National Philharmonic Orchestra
by artist: Richard Bonynge
in album: Romantic Opera
  type: MusicAlbum
  date published: 2022-02-15
popularity: 2
genre: classical
genre: opera
isrc code: GBF077600010
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T01:53:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc6d7a0ee1e0e00ae762d3bfca541ae93770a8e0e5832e6786a23922c4c99548c
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/GBF077600010
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 0xc6d7a0ee1e0e00ae762d3bfca541ae93770a8e0e5832e6786a23922c4c99548c. 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/GBF077600010.
  date published: 2026-07-08T03:53:27Z
audio: La traviata / Act 1: "Libiamo ne' lieti calici" (Brindisi)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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    value: Bb
  additional property: Mode Name
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Les pêcheurs de perles / Act I: Je crois entendre encore
type: MusicRecording
duration: PT3M17S
duration ms: 197973
explicit: false
by artist: Georges Bizet
by artist: Joseph Calleja
by artist: Academy of St. Martin in the Fields
by artist: Carlo Rizzi
in album: Romantic Opera
  type: MusicAlbum
  date published: 2022-02-15
popularity: 1
genre: classical
genre: opera
isrc code: GBBBA0541590
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T16:30:24+00:00
additional property: CopyrightChainExplorerURL
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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
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track: Ines di Castro: Cari giorni
track: L'elisir d'amore, Act I: Una parola
track: L'elisir d'amore, Act I: Chiedi all'aura
track: Norma, Act II: Mira, O Norma (Critical Ed. Maurizio Biondi and Riccardo Minasi) - Edit
track: Norma, Act II: Si, fino all’ore estreme (Critical Ed. Maurizio Biondi and Riccardo Minasi)
track: La sonnambula, Act I: Prendi: l'anel ti dono - Edit
track: Il turco in Italia, Act I: Ed osate… (Critical Ed. Margaret Bent) - Edit
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track: Le nozze di Figaro, K. 492, Act II: Voi che sapete
track: La clemenza di Tito: Se mai senti spirarti sul volto
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track: Alcina, HWV 34, Act I: Di' cor mio

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subject of: OpenTimestamps Proof of Existence
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audio: Norma, Act II: Mira, O Norma (Critical Ed. Maurizio Biondi and Riccardo Minasi) - Edit
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Norma, Act II: Si, fino all’ore estreme (Critical Ed. Maurizio Biondi and Riccardo Minasi)
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La sonnambula, Act I: Prendi: l'anel ti dono - Edit
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Il turco in Italia, Act I: Ed osate… (Critical Ed. Margaret Bent) - Edit
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  date published: 2026-07-08T03:22:41Z
audio: Il turco in Italia, Act I: Ed osate… (Critical Ed. Margaret Bent) - Edit
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Vaga luna che inargenti
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audio: Vaga luna che inargenti
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La danza
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Le nozze di Figaro, K. 492, Act II: Voi che sapete
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La clemenza di Tito: Se mai senti spirarti sul volto
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subject of: OpenTimestamps Proof of Existence
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audio: La clemenza di Tito: Se mai senti spirarti sul volto
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Siface: Come Nave in mezzo all'onde
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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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Alcina, HWV 34, Act I: Di' cor mio
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subject of: OpenTimestamps Proof of Existence
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The Classical Album 2011
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
  audio: Jazz Suite No. 2: Waltz II
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track: Peer Gynt Suite No. 1, Op. 46: In the Hall of the Mountain King
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:53:27Z

Peer Gynt Suite No. 1, Op. 46: In the Hall of the Mountain King
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Prima Donna - The First Ladies Of Opera
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    date published: 2026-07-08T03:53:27Z
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Divos & Divas
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date published: 2009-01-01

Divos & Divas (2 CDs)
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Bellini: Norma / Act 1: "Casta Diva"
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Bellini: La sonnambula / Act 2: "Ah, non credea mirarti"
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