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description: Alberto Zedda (2 January 19286 March 2017) was an Italian conductor and musicologist whose specialty was the 19th-century Italian repertoire. thumb|left|Alberto Zedda (photo with 1960 dedication) Alb
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La donna del lago, Act I: Quali accenti! Quai tormenti! (Uberto, Elena)
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La Cenerentola, Act 1: Overture (Live)
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La Cenerentola, Act 1: No no no. Non v'è (Live)
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La Cenerentola, Act 1: Scegli la sposa - Come un'ape ne' giorni d'aprile (Live)
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duration: PT6M34S
duration ms: 394626
explicit: false
by artist: Gioachino Rossini
by artist: Jose Manuel Zapata
by artist: Paolo Bordogna
by artist: Bruno Pratico
by artist: Patrizia Cigna
by artist: Martina Borst
by artist: Prague Chamber Choir
by artist: SWR Rundfunkorchester Kaiserslautern
by artist: Alberto Zedda
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  date published: 2005-09-01
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T12:24:41Z
audio: La Cenerentola, Act 1: Scegli la sposa - Come un'ape ne' giorni d'aprile (Live)
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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La Cenerentola, Act 1: Signore, una parola (Live)
type: MusicRecording
duration: PT10M38S
duration ms: 638960
explicit: false
by artist: Gioachino Rossini
by artist: Joyce DiDonato
by artist: Jose Manuel Zapata
by artist: Paolo Bordogna
by artist: Bruno Pratico
by artist: Luca Pisaroni
by artist: SWR Rundfunkorchester Kaiserslautern
by artist: Alberto Zedda
in album: Rossini: La Cenerentola
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  date published: 2005-09-01
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
audio: La Cenerentola, Act 1: Signore, una parola (Live)
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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Il viaggio a Reims: All'ombra amena
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duration: PT7M13S
duration ms: 433933
explicit: false
by artist: Gioachino Rossini
by artist: Olga Peretyatko
by artist: Alberto Zedda
by artist: Orchestra del Teatro Comunale di Bologna
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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
  type: PropertyValue
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additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Il viaggio a Reims: All'ombra amena
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L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 1: Recitativo: Ritiratevi tutti (Mustafa, Zulma, Elvira, Haly)
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duration: PT1M49S
duration ms: 109466
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 1: Recitativo: Ritiratevi tutti (Mustafa, Zulma, Elvira, Haly)
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L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 3: Recitativo: Qual disdetta e la mia! Onor e patria (Isabella, Lindoro)
type: MusicRecording
duration: PT1M28S
duration ms: 88813
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
genre: opera
isrc code: HKI191004503
additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
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  date published: 2026-07-08T03:53:27Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 3: Recitativo: Qual disdetta e la mia! Onor e patria (Isabella, Lindoro)
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L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 3: Cavatina: Languir per una bella (Lindoro)
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duration: PT6M49S
duration ms: 409426
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
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  date published: 2010-05-25
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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  date published: 2026-07-08T03:22:41Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 3: Cavatina: Languir per una bella (Lindoro)
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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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L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 3: Cavatina: Oh, come il cor di giubilo (Lindoro)
type: MusicRecording
duration: PT2M22S
duration ms: 142240
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
genre: opera
isrc code: HKI191004504
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:07:06+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x1702832e8131faf7e2fa632a93a70f76e954173daf965e6ee6f15274966b4484
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/HKI191004504
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1702832e8131faf7e2fa632a93a70f76e954173daf965e6ee6f15274966b4484. 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/HKI191004504.
  date published: 2026-07-08T03:22:41Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 3: Cavatina: Oh, come il cor di giubilo (Lindoro)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 4: Recitativo: Ah! Se da solo a sola (Mustafa, Taddeo)
type: MusicRecording
duration: PT1M11S
duration ms: 71866
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
genre: opera
isrc code: HKI191004505
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004505
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74813fc650f6b7fa1af874ba1e81a9254f01f3f6d11c2520b807fe69bc5987db. 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/HKI191004505.
  date published: 2026-07-08T03:22:41Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 4: Recitativo: Ah! Se da solo a sola (Mustafa, Taddeo)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
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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)
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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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L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 4: Coro: Viva il grande Kaimakan (Chorus)
type: MusicRecording
duration: PT0M56S
duration ms: 56706
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
genre: opera
isrc code: HKI191004506
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:53:42+00:00
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/HKI191004506
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172a2ed66be833ce5b38d733fb9f9beaf801e227bad5854eb7ed46e633dc7d7d. 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/HKI191004506.
  date published: 2026-07-08T03:20:19Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 4: Coro: Viva il grande Kaimakan (Chorus)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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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
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
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    value: -18.36
  additional property: Key Name
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    value: D
  additional property: Mode Name
    type: PropertyValue
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L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 4: Aria: Ho un gran peso sulla testa (Taddeo, Chorus)
type: MusicRecording
duration: PT4M1S
duration ms: 241946
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
genre: opera
isrc code: HKI191004508
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T19:16:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x155913492c9c95c698dc7c0210cb240e1603cf50551cb0ded77c013ba97228ca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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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/HKI191004508
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155913492c9c95c698dc7c0210cb240e1603cf50551cb0ded77c013ba97228ca. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004508.
  date published: 2026-07-02T11:38:34Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 4: Aria: Ho un gran peso sulla testa (Taddeo, Chorus)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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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
    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
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.476
  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 5: Recitativo: Ah! Isabella … siam giunti a mal partito (Taddeo, Isabella)
type: MusicRecording
duration: PT1M13S
duration ms: 73826
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
genre: opera
isrc code: HKI191004409
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T10:20:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd24d8973c07a31fb61bfe7f3903f8898add80ce128760ab61e82afa52103b603
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004409
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24d8973c07a31fb61bfe7f3903f8898add80ce128760ab61e82afa52103b603. 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/HKI191004409.
  date published: 2026-07-08T03:53:27Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 5: Recitativo: Ah! Isabella … siam giunti a mal partito (Taddeo, Isabella)
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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
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 8: Aria: Gia d'insolito ardore nel petto (Mustafa)
type: MusicRecording
duration: PT3M22S
duration ms: 202320
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
genre: opera
isrc code: HKI191004412
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T07:37:52+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957819
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004412
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-13T07:53:33+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-13T07:54:01Z
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L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 9: Recitativo: Vi dico il ver (Zulma, Elvira, Lindoro)
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  date published: 2026-07-08T03:20:19Z
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L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 8: Recitativo: E tu speri di togliere (Taddeo, Lindoro, Mustafa)
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by artist: Marianna Pizzolato
by artist: Bruno De Simone
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  date published: 2026-07-08T08:56:20Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 8: Recitativo: E tu speri di togliere (Taddeo, Lindoro, Mustafa)
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L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 12: Quartettino nel Finale I: Vo' star con mia nipote (Taddeo, Haly, Mustafa, Isabella)
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by artist: Elsa Giannoulidou
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  date published: 2026-07-08T03:53:27Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 12: Quartettino nel Finale I: Vo' star con mia nipote (Taddeo, Haly, Mustafa, Isabella)
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L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 10: Terzetto: Pappataci! Che mai sento! (Mustafa, Lindoro, Taddeo)
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by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
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  date published: 2026-07-08T03:20:19Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 10: Terzetto: Pappataci! Che mai sento! (Mustafa, Lindoro, Taddeo)
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L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 11: Coro: Pronti abbiamo e ferri e mani (Chorus)
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by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
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genre: opera
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  date published: 2026-07-08T03:22:41Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 11: Coro: Pronti abbiamo e ferri e mani (Chorus)
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L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 11: Scena ed Aria: Pensa alla patria, e intrepido (Isabella, Chorus)
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  date published: 2026-07-08T03:20:19Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 11: Scena ed Aria: Pensa alla patria, e intrepido (Isabella, Chorus)
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L'Italiana in Algeri (The Italian Girl in Algiers): Sinfonia
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duration ms: 469133
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by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Sinfonia
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additional property: OTSVerifyInstructions
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L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 1: Introduzione: Uno stupido, uno stolto (Chorus, Elvira, Zulma, Haly)
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duration: PT1M54S
duration ms: 114640
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
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genre: classical
genre: opera
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  date published: 2026-07-30T22:27:30Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 1: Introduzione: Uno stupido, uno stolto (Chorus, Elvira, Zulma, Haly)
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additional property: OTSVerifyInstructions
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L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 1: Introduzione: Serenate il mesto ciglio - Cavatina e Stretta dell'Introduzione: Delle donne l'arroganza (Chorus, Elvira, Zulm
type: MusicRecording
duration: PT7M6S
duration ms: 426746
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T00:39:11Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 1: Introduzione: Serenate il mesto ciglio - Cavatina e Stretta dell'Introduzione: Delle donne l'arroganza (Chorus, Elvira, Zulm
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additional property: OTSVerifyInstructions
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L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 2: Recitativo: Amiche, andate a dire all'Italiana (Mustafa, Zulma, Elvira)
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duration: PT0M55S
duration ms: 55546
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T00:26:26Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 2: Recitativo: Amiche, andate a dire all'Italiana (Mustafa, Zulma, Elvira)
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additional property: OTSVerifyInstructions
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L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 3: Recitativo e Duetto: Ah, quando fia (Lindoro, Mustafa)
type: MusicRecording
duration: PT1M9S
duration ms: 69786
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T09:57:33Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 3: Recitativo e Duetto: Ah, quando fia (Lindoro, Mustafa)
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additional property: OTSVerifyInstructions
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L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 3: Duetto: Se inclinassi a prender moglie (Lindoro, Mustafa)
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duration: PT4M8S
duration ms: 248120
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
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  date published: 2010-05-25
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T09:37:10Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 3: Duetto: Se inclinassi a prender moglie (Lindoro, Mustafa)
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960236
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T09:37:10+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004406
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960236
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960236
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T09:37:10+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 4: Coro: Quanta roba! Quanti schiavi! - Cavatina: Cruda sorte! Amor tiranno! (Chorus, Isabella)
type: MusicRecording
duration: PT5M20S
duration ms: 320333
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
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 0x652bee6c212a3954867dcae4718166e8ad4fba8afed41ae38117a7f4ee7f2878. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004407.
  date published: 2026-07-30T12:45:34Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 4: Coro: Quanta roba! Quanti schiavi! - Cavatina: Cruda sorte! Amor tiranno! (Chorus, Isabella)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.823
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.396
  additional property: Energy
    type: PropertyValue
    value: 0.089
  additional property: Speechiness
    type: PropertyValue
    value: 0.115
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.748
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.197
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.106
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI191004407
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960258
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T12:45:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004407
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960258
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960258
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T12:45:34+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 4: Recitativo: Gia ci siam. Tanto fa (Isabella, Taddeo, Haly)
type: MusicRecording
duration: PT1M17S
duration ms: 77493
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
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 0x2b45566828adb2dc5cfd892b3253603fa81c909d27776c8a7ad7e1380ecf5729. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/HKI191004408.
  date published: 2026-07-30T08:04:30Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 4: Recitativo: Gia ci siam. Tanto fa (Isabella, Taddeo, Haly)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.762
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.594
  additional property: Energy
    type: PropertyValue
    value: 0.164
  additional property: Speechiness
    type: PropertyValue
    value: 0.402
  additional property: Acousticness
    type: PropertyValue
    value: 0.945
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.668
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.202
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.517
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI191004408
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960225
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T08:04:30+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004408
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960225
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960225
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T08:04:30+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 5: Recitativo: Dunque a momenti (Isabella, Lindoro, Elvira, Zulma)
type: MusicRecording
duration: PT1M56S
duration ms: 116200
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
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 0xeaeaa4a6066aef2161ff7693f7a8469e8a15d1ef35e41c79ab551d7b1cb8c390. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/HKI191004509.
  date published: 2026-07-31T00:26:26Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 5: Recitativo: Dunque a momenti (Isabella, Lindoro, Elvira, Zulma)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.012
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.541
  additional property: Energy
    type: PropertyValue
    value: 0.075
  additional property: Speechiness
    type: PropertyValue
    value: 0.335
  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.084
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.241
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.082
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI191004509
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960327
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T00:26:26+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004509
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960327
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960327
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 5: Duetto: Ai capricci della sorte (Isabella, Taddeo)
type: MusicRecording
duration: PT7M25S
duration ms: 445640
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
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 0x3f896823cc96a4979e4d2033cf63e9e5cbe79f11778f0b2280f5223fa9737d40. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004410.
  date published: 2026-07-30T14:53:07Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 5: Duetto: Ai capricci della sorte (Isabella, Taddeo)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 149.254
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.465
  additional property: Energy
    type: PropertyValue
    value: 0.161
  additional property: Speechiness
    type: PropertyValue
    value: 0.409
  additional property: Acousticness
    type: PropertyValue
    value: 0.972
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.696
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.326
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.226
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI191004410
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960268
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T14:53:07+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004410
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960268
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960268
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:53:07+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 5: Cavatina: Per lui che adoro (Isabella, Mustafa, Taddeo, Lindoro)
type: MusicRecording
duration: PT6M8S
duration ms: 368226
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
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 0xb8c05c47f736781891bc2b67c4c8fbbba559be1cd28dd6454f32d243ada502d2. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/HKI191004510.
  date published: 2026-07-31T00:26:26Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 5: Cavatina: Per lui che adoro (Isabella, Mustafa, Taddeo, Lindoro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.665
  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: 0.307
  additional property: Energy
    type: PropertyValue
    value: 0.054
  additional property: Speechiness
    type: PropertyValue
    value: 0.079
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.672
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.13
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.269
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI191004510
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960327
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T00:26:26+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004510
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960327
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960327
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 6: Recitativo: Io non resisto piu: questa Isabella (Mustafa, Taddeo, Lindoro)
type: MusicRecording
duration: PT0M41S
duration ms: 41080
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
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 0x1753fc0ce1d3a9133b4dfac9177d031d35d792d37b49e6fc7a2f5841b2ddd2aa. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004511.
  date published: 2026-07-31T19:53:13Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 6: Recitativo: Io non resisto piu: questa Isabella (Mustafa, Taddeo, Lindoro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.29
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.635
  additional property: Energy
    type: PropertyValue
    value: 0.183
  additional property: Speechiness
    type: PropertyValue
    value: 0.396
  additional property: Acousticness
    type: PropertyValue
    value: 0.952
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.734
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.596
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.672
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: HKI191004511
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960455
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T19:53:13+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004511
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960455
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960455
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 6: Recitativo: E ricusar potresti (Zulma, Lindoro, Elvira) - Scene 7: Ascoltami, Italiano (Mustafa, Lindoro) - Scene 8: Dunque
type: MusicRecording
duration: PT2M55S
duration ms: 175666
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
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 0xb1a9bdfea9565976d821b6b2ddc015566c3098421d9beeb7605fe961f02f5df3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004411.
  date published: 2026-07-31T02:19:15Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 6: Recitativo: E ricusar potresti (Zulma, Lindoro, Elvira) - Scene 7: Ascoltami, Italiano (Mustafa, Lindoro) - Scene 8: Dunque
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.42
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.52
  additional property: Energy
    type: PropertyValue
    value: 0.148
  additional property: Speechiness
    type: PropertyValue
    value: 0.376
  additional property: Acousticness
    type: PropertyValue
    value: 0.956
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.509
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.397
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.346
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI191004411
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960334
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T02:19:15+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004411
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960334
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960334
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 6: Quintetto: Ti presento di mia man (Mustafa, Isabella, Taddeo, Lindoro, Elvira)
type: MusicRecording
duration: PT9M40S
duration ms: 580240
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
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 0x1e15d261793211fa034a02b0a93b49124f641f87c040dbce48d8a8937c6c1336. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/HKI191004512.
  date published: 2026-07-31T00:26:26Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 6: Quintetto: Ti presento di mia man (Mustafa, Isabella, Taddeo, Lindoro, Elvira)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.401
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.422
  additional property: Energy
    type: PropertyValue
    value: 0.253
  additional property: Speechiness
    type: PropertyValue
    value: 0.419
  additional property: Acousticness
    type: PropertyValue
    value: 0.951
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.679
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.419
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.789
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI191004512
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960327
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T00:26:26+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004512
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960327
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960327
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 7: Recitativo: Con tutta la sua boria (Haly)
type: MusicRecording
duration: PT0M33S
duration ms: 33680
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
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 0x63148c6223fae9711845b0add42e9a3cc77e0a4fcc8834b99cd3b4bb40f4ddbe. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004513.
  date published: 2026-07-31T17:29:52Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 7: Recitativo: Con tutta la sua boria (Haly)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.047
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.568
  additional property: Energy
    type: PropertyValue
    value: 0.097
  additional property: Speechiness
    type: PropertyValue
    value: 0.18
  additional property: Acousticness
    type: PropertyValue
    value: 0.901
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.482
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.43
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.75
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI191004513
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960441
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T17:29:52+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004513
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960441
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960441
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 7: Aria: Le femmine d'Italia (Haly)
type: MusicRecording
duration: PT2M33S
duration ms: 153986
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
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 0x2ebd1e166c30299cac58f3192ec75faffb00681d83f89f94c0fca0841bdcc591. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004514.
  date published: 2026-07-30T12:51:24Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 7: Aria: Le femmine d'Italia (Haly)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 144.054
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.416
  additional property: Energy
    type: PropertyValue
    value: 0.137
  additional property: Speechiness
    type: PropertyValue
    value: 0.103
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.724
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.258
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.704
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI191004514
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960259
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T12:51:24+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004514
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960259
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960259
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T12:51:24+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 10: Coro nel Finale I: Viva, viva il flagel delle donne (Chorus, Haly, Mustafa)
type: MusicRecording
duration: PT2M22S
duration ms: 142520
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
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 0xd64f4bd91717540ac728a5a055559ef5b96d70cd834254ca02c70633cedea57a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004414.
  date published: 2026-07-31T02:19:15Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 10: Coro nel Finale I: Viva, viva il flagel delle donne (Chorus, Haly, Mustafa)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.094
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.475
  additional property: Energy
    type: PropertyValue
    value: 0.086
  additional property: Speechiness
    type: PropertyValue
    value: 0.071
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.016
  additional property: Liveness
    type: PropertyValue
    value: 0.136
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.117
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.597
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI191004414
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960334
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T02:19:15+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004414
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960334
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960334
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 11: Duettino nel Finale I: Oh! Che muso, che figura! (Isabella, Mustafa)
type: MusicRecording
duration: PT4M6S
duration ms: 246600
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
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 0x81a190269c05882ec00f804ebdaadea0317f6bd60ed8bd7a2d1934a0aa4bc854. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/HKI191004415.
  date published: 2026-07-30T20:35:49Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 11: Duettino nel Finale I: Oh! Che muso, che figura! (Isabella, Mustafa)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.306
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.345
  additional property: Energy
    type: PropertyValue
    value: 0.144
  additional property: Speechiness
    type: PropertyValue
    value: 0.114
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.434
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.19
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI191004415
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960309
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T20:35:49+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004415
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960309
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960309
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T20:35:49+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 10: Recitativo: Orsu: la tua nipote con chi crede (Mustafa, Lindoro, Taddeo)
type: MusicRecording
duration: PT0M56S
duration ms: 56306
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
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 0xfd7f24e053ad40e545c597a953ae13ab3ebaa07af40c000e17b2e8cb25098c26. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004516.
  date published: 2026-07-31T13:50:38Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 10: Recitativo: Orsu: la tua nipote con chi crede (Mustafa, Lindoro, Taddeo)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.744
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.553
  additional property: Energy
    type: PropertyValue
    value: 0.218
  additional property: Speechiness
    type: PropertyValue
    value: 0.427
  additional property: Acousticness
    type: PropertyValue
    value: 0.954
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.21
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.566
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.567
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI191004516
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960410
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T13:50:38+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004516
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960410
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960410
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:50:38+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 13: Settimino: Pria di dividerci - Seguito e Stretta: Va sossopra il mio cervello (Zulma, Elvira, Lindoro, Isabella, Mustafa, T
type: MusicRecording
duration: PT9M5S
duration ms: 545080
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
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 0xee9696a83a57c8c62a34590cf6b18e1cb7968de4d4a2fd7e37d365f04edf37dd. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/HKI191004417.
  date published: 2026-07-29T13:09:35Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 13: Settimino: Pria di dividerci - Seguito e Stretta: Va sossopra il mio cervello (Zulma, Elvira, Lindoro, Isabella, Mustafa, T
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.944
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.444
  additional property: Energy
    type: PropertyValue
    value: 0.225
  additional property: Speechiness
    type: PropertyValue
    value: 0.101
  additional property: Acousticness
    type: PropertyValue
    value: 0.955
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.431
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.315
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.719
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI191004417
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960108
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T13:09:35+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004417
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960108
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960108
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T13:09:35+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 11: Recitativo: Tutti i nostri Italiani (Taddeo, Lindoro)
type: MusicRecording
duration: PT0M46S
duration ms: 46120
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
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 0x07edc18ddee1124c8c90e103441fb5629795c154a3b886a3d4700aba5a6ccebc. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004518.
  date published: 2026-07-31T08:26:41Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 11: Recitativo: Tutti i nostri Italiani (Taddeo, Lindoro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.73
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.545
  additional property: Energy
    type: PropertyValue
    value: 0.175
  additional property: Speechiness
    type: PropertyValue
    value: 0.206
  additional property: Acousticness
    type: PropertyValue
    value: 0.914
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.144
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.551
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.39
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI191004518
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960368
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T08:26:41+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004518
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 11: Recitativo: Amici, in ogni evento (Isabella, Taddeo)
type: MusicRecording
duration: PT1M16S
duration ms: 76906
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
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 0x7796d7985b49924ca758cc15d4d55809be90392e92bd293a51cb5b5710e41a77. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/HKI191004520.
  date published: 2026-07-31T10:20:10Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 11: Recitativo: Amici, in ogni evento (Isabella, Taddeo)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.387
  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: 0.412
  additional property: Energy
    type: PropertyValue
    value: 0.077
  additional property: Speechiness
    type: PropertyValue
    value: 0.128
  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.654
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.198
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.072
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI191004520
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960389
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T10:20:10+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004520
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960389
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960389
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T10:20:10+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 12: Recitativo: Che bel core ha costei! (Taddeo, Mustafa)
type: MusicRecording
duration: PT0M54S
duration ms: 54480
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
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 0xe1efdc3f82e368422eb1c5398438d7082ec7eccabd7c11705432735b25cefcf6. 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/HKI191004522.
  date published: 2026-07-31T18:48:12Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 12: Recitativo: Che bel core ha costei! (Taddeo, Mustafa)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.808
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.586
  additional property: Energy
    type: PropertyValue
    value: 0.167
  additional property: Speechiness
    type: PropertyValue
    value: 0.331
  additional property: Acousticness
    type: PropertyValue
    value: 0.937
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.315
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.379
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.65
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI191004522
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960448
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T18:48:12+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004522
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960448
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960448
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T18:48:12+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 13: Finale II: Dei pappataci s'avanza il coro (Lindoro, Chorus, Taddeo, Mustafa)
type: MusicRecording
duration: PT3M33S
duration ms: 213440
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
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 0x5873d7406fa84ec2fdd9a8c58963b03d7abf45c2c5f9ab1a1a2f0fc8a532e004. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004523.
  date published: 2026-07-31T19:53:13Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 13: Finale II: Dei pappataci s'avanza il coro (Lindoro, Chorus, Taddeo, Mustafa)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.276
  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: 0.488
  additional property: Energy
    type: PropertyValue
    value: 0.05
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.341
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.234
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.106
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI191004523
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960455
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T19:53:13+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191004523
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960455
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960455
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13+00:00
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

L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 14: Quartetto nel Finale II: Non sei tu che il grado eletto (Isabella, Mustafa, Chorus, Lindoro, Taddeo)
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duration: PT6M23S
duration ms: 383786
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T17:23:26Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 14: Quartetto nel Finale II: Non sei tu che il grado eletto (Isabella, Mustafa, Chorus, Lindoro, Taddeo)
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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 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

L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 15: Seguito: Son l'aure seconde, son placide l'onde (Chorus, Lindoro, Isabella, Taddeo, Mustafa)
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duration: PT1M55S
duration ms: 115080
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
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genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T06:42:11Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 15: Seguito: Son l'aure seconde, son placide l'onde (Chorus, Lindoro, Isabella, Taddeo, Mustafa)
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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 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

L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 16: Stretta del Finale II: Mio signore (Haly, Elvira, Zulma, Mustafa, Isabella, Lindoro, Taddeo, Chorus)
type: MusicRecording
duration: PT2M41S
duration ms: 161520
explicit: false
by artist: Gioachino Rossini
by artist: Lorenzo Regazzo
by artist: Ruth Gonzalez
by artist: Elsa Giannoulidou
by artist: Giulio Mastrototaro
by artist: Lawrence Brownlee
by artist: Marianna Pizzolato
by artist: Bruno De Simone
by artist: Transylvania State Philharmonic Choir
by artist: Virtuosi Brunensis
by artist: Alberto Zedda
in album: Rossini: L'Italiana in Algeri
  type: MusicAlbum
  date published: 2010-05-25
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T04:47:22Z
audio: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 16: Stretta del Finale II: Mio signore (Haly, Elvira, Zulma, Mustafa, Isabella, Lindoro, Taddeo, Chorus)
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Concerto pour 2 violons et orchestre en la mineur Op. III n°8, I Allegro - A. Vivaldi
type: MusicRecording
duration: PT3M52S
duration ms: 232026
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by artist: Antonio Vivaldi
by artist: Romana Pezzani
by artist: Bruno Salvi
by artist: Angelicum De Milan
by artist: Alberto Zedda
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additional property: CopyrightID
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
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  date published: 2026-07-08T03:20:19Z
audio: Concerto pour 2 violons et orchestre en la mineur Op. III n°8, I Allegro - A. Vivaldi
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Concerto pour 2 violons et orchestre en la mineur Op. III n°8, III Allegro - A. Vivaldi
type: MusicRecording
duration: PT3M26S
duration ms: 206333
explicit: false
by artist: Antonio Vivaldi
by artist: Romana Pezzani
by artist: Bruno Salvi
by artist: Angelicum De Milan
by artist: Alberto Zedda
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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
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  date published: 2026-06-13T15:41:10Z
audio: Concerto pour 2 violons et orchestre en la mineur Op. III n°8, III Allegro - A. Vivaldi
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Concerto pour 2 violons et orchestre en la mineur Op. III n°8, II Allegretto - A. Vivaldi
type: MusicRecording
duration: PT4M24S
duration ms: 264533
explicit: false
by artist: Antonio Vivaldi
by artist: Romana Pezzani
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by artist: Angelicum De Milan
by artist: Alberto Zedda
in album: Vivaldi, Concertos pour violons, Violins, Bach Transposition pour orgue, organ
  type: MusicAlbum
  date published: 1966-01-01
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  date published: 2026-07-31T02:19:15Z
audio: Concerto pour 2 violons et orchestre en la mineur Op. III n°8, II Allegretto - A. Vivaldi
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Concerto pour violonscelle et orchestre en la mineur Op. III n°11, I Allegro - A. Vivaldi
type: MusicRecording
duration: PT4M52S
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Concerto pour violonscelle et orchestre en la mineur Op. III n°11, II Largo - A. Vivaldi
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  date published: 2026-07-30T22:27:30Z
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Concerto pour violonscelle et orchestre en la mineur Op. III n°11, III Allegro - A. Vivaldi
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Gianni Schicchi: O mio babbino caro
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audio: Gianni Schicchi: O mio babbino caro
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Le nozze di Figaro, K. 492, Act I: Aria: Non piu andrai, farfallone amoroso
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subject of: OpenTimestamps Proof of Existence
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Turandot, Act III: Nessun dorma!
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Carmen: Carmen, Act II: Toreador Song: Votre toast, je peux vous le rendre
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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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Martinia Franca Festival - 30th Anniversary
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Rossini: Donna Del Lago (La)
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A Guided Tour of the Romantic Era, Vol. 3
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Early Romantic Piano Concertos
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Klassiskt A-O
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A Guided Tour of the Romantic Era, Vol. 4
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Rossini: La Cenerentola
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Italian Operatic Overtures, Vol. 2: The Early 19th Century
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Debussy/Milhaud/Prokofiev/Shostakovich - Orchestral Works
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Discover Opera
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Gentle Opera
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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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  subject of: OpenTimestamps Proof of Existence
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track: Les Contes d'Hoffmann, Act IV: Belle nuit, ô nuit d'amour (Nicklausse, Giulietta, Chorus)
track: La traviata, Act I: Brindisi: Libiamo ne' lieti calici
track: Siegfried, WWV. 86c, Act II: Du holdes Vöglein (Waldweben) (Siegfried)
track: La Bohème, Act I: Sì. Mi chiamano Mimi (Mimi/Rodolfo)
track: Les Pêcheurs de perles, WD. 13, Act I: Au fond du temple saint
track: Pagliacci, Act I, Scene 2: Recitar!...Vesti la giubba
track: La Wally, Act I: Ebben?...Ne andrò lontana
track: Die Zauberflöte, K. 620, Act I: Der Vogelfänger bin ich ja
track: Samson et Dalila, Op. 47, Act II Scene 3: Mon coeur s'ouvre à ta voix (Dalila/Samson)
track: Le Nozze di Figaro, K. 492, Act II: Voi che sapete (Cherubino)

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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

Tristan und Isolde, WWV. 90, Act III: Mild und leise (Liebestod)
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Les Contes d'Hoffmann, Act IV: Belle nuit, ô nuit d'amour (Nicklausse, Giulietta, Chorus)
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by artist: Orchestre Symphonique de l'Opéra National, Bruxelles
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Les Contes d'Hoffmann, Act IV: Belle nuit, ô nuit d'amour (Nicklausse, Giulietta, Chorus)
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La traviata, Act I: Brindisi: Libiamo ne' lieti calici
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: La traviata, Act I: Brindisi: Libiamo ne' lieti calici
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Siegfried, WWV. 86c, Act II: Du holdes Vöglein (Waldweben) (Siegfried)
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by artist: Bernard Haitink
by artist: Siegfried Jerusalem
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subject of: OpenTimestamps Proof of Existence
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La Bohème, Act I: Sì. Mi chiamano Mimi (Mimi/Rodolfo)
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Les Pêcheurs de perles, WD. 13, Act I: Au fond du temple saint
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Pagliacci, Act I, Scene 2: Recitar!...Vesti la giubba
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La Wally, Act I: Ebben?...Ne andrò lontana
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Die Zauberflöte, K. 620, Act I: Der Vogelfänger bin ich ja
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Samson et Dalila, Op. 47, Act II Scene 3: Mon coeur s'ouvre à ta voix (Dalila/Samson)
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Le Nozze di Figaro, K. 492, Act II: Voi che sapete (Cherubino)
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Bel Canto Bully: The musical legacy of the legendary opera impresario Domenico Barbaja
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Art & Music: Goya - Music of His Time
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Rossini: Stabat mater
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Spontini: Teseo riconosciuto (Live)
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Rossini: Otello (Live)
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Rossini!
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Rossini: La gazza ladra (Live)
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Domenico Cimarosa: Le donne rivali (Live)
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Rossini: Sermiramide
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Rossini: L'Italiana in Algeri
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date published: 2010-05-25
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 1: Recitativo: Ritiratevi tutti (Mustafa, Zulma, Elvira, Haly)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 3: Recitativo: Qual disdetta e la mia! Onor e patria (Isabella, Lindoro)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 3: Cavatina: Languir per una bella (Lindoro)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 3: Cavatina: Oh, come il cor di giubilo (Lindoro)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 4: Recitativo: Ah! Se da solo a sola (Mustafa, Taddeo)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 4: Coro: Viva il grande Kaimakan (Chorus)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 4: Aria: Ho un gran peso sulla testa (Taddeo, Chorus)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 5: Recitativo: Ah! Isabella … siam giunti a mal partito (Taddeo, Isabella)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 8: Aria: Gia d'insolito ardore nel petto (Mustafa)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 9: Recitativo: Vi dico il ver (Zulma, Elvira, Lindoro)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 8: Recitativo: E tu speri di togliere (Taddeo, Lindoro, Mustafa)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 12: Quartettino nel Finale I: Vo' star con mia nipote (Taddeo, Haly, Mustafa, Isabella)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 10: Terzetto: Pappataci! Che mai sento! (Mustafa, Lindoro, Taddeo)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 11: Coro: Pronti abbiamo e ferri e mani (Chorus)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 11: Scena ed Aria: Pensa alla patria, e intrepido (Isabella, Chorus)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Sinfonia
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 1: Introduzione: Uno stupido, uno stolto (Chorus, Elvira, Zulma, Haly)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 1: Introduzione: Serenate il mesto ciglio - Cavatina e Stretta dell'Introduzione: Delle donne l'arroganza (Chorus, Elvira, Zulm
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 2: Recitativo: Amiche, andate a dire all'Italiana (Mustafa, Zulma, Elvira)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 3: Recitativo e Duetto: Ah, quando fia (Lindoro, Mustafa)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 3: Duetto: Se inclinassi a prender moglie (Lindoro, Mustafa)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 4: Coro: Quanta roba! Quanti schiavi! - Cavatina: Cruda sorte! Amor tiranno! (Chorus, Isabella)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 4: Recitativo: Gia ci siam. Tanto fa (Isabella, Taddeo, Haly)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 5: Recitativo: Dunque a momenti (Isabella, Lindoro, Elvira, Zulma)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 5: Duetto: Ai capricci della sorte (Isabella, Taddeo)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 5: Cavatina: Per lui che adoro (Isabella, Mustafa, Taddeo, Lindoro)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 6: Recitativo: Io non resisto piu: questa Isabella (Mustafa, Taddeo, Lindoro)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 6: Recitativo: E ricusar potresti (Zulma, Lindoro, Elvira) - Scene 7: Ascoltami, Italiano (Mustafa, Lindoro) - Scene 8: Dunque
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 6: Quintetto: Ti presento di mia man (Mustafa, Isabella, Taddeo, Lindoro, Elvira)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 7: Recitativo: Con tutta la sua boria (Haly)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 7: Aria: Le femmine d'Italia (Haly)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 10: Coro nel Finale I: Viva, viva il flagel delle donne (Chorus, Haly, Mustafa)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 11: Duettino nel Finale I: Oh! Che muso, che figura! (Isabella, Mustafa)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 10: Recitativo: Orsu: la tua nipote con chi crede (Mustafa, Lindoro, Taddeo)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act I Scene 13: Settimino: Pria di dividerci - Seguito e Stretta: Va sossopra il mio cervello (Zulma, Elvira, Lindoro, Isabella, Mustafa, T
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 11: Recitativo: Tutti i nostri Italiani (Taddeo, Lindoro)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 11: Recitativo: Amici, in ogni evento (Isabella, Taddeo)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 12: Recitativo: Che bel core ha costei! (Taddeo, Mustafa)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 13: Finale II: Dei pappataci s'avanza il coro (Lindoro, Chorus, Taddeo, Mustafa)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 14: Quartetto nel Finale II: Non sei tu che il grado eletto (Isabella, Mustafa, Chorus, Lindoro, Taddeo)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 15: Seguito: Son l'aure seconde, son placide l'onde (Chorus, Lindoro, Isabella, Taddeo, Mustafa)
track: L'Italiana in Algeri (The Italian Girl in Algiers): Act II Scene 16: Stretta del Finale II: Mio signore (Haly, Elvira, Zulma, Mustafa, Isabella, Lindoro, Taddeo, Chorus)

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type: MusicAlbum
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track: Concerto pour 2 violons et orchestre en la mineur Op. III n°8, I Allegro - A. Vivaldi
track: Concerto pour 2 violons et orchestre en la mineur Op. III n°8, III Allegro - A. Vivaldi
track: Concerto pour 2 violons et orchestre en la mineur Op. III n°8, II Allegretto - A. Vivaldi
track: Concerto pour violonscelle et orchestre en la mineur Op. III n°11, I Allegro - A. Vivaldi
track: Concerto pour violonscelle et orchestre en la mineur Op. III n°11, II Largo - A. Vivaldi
track: Concerto pour violonscelle et orchestre en la mineur Op. III n°11, III Allegro - A. Vivaldi