Alfredo Kraus
type: MusicGroup
genre: opera
description: right|thumb|240px|Alfredo Kraus as the Duke in Rigoletto at his Metropolitan Opera debut. thumb|240px|Memorial tablet on the birthplace of Alfredo Kraus in the Calle de Colón in Las Palmas, Gran Canar
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  date published: 1963-01-01
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    by artist: Wolfgang Amadeus Mozart
    by artist: Karl Böhm
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      date published: 2026-07-21T17:01:52Z
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  track: Mozart: Così fan tutte, K. 588, Act 1: Terzetto. "La mia Dorabella capace non è" (Ferrando, Guglielmo, Don Alfonso)
  track: Mozart: Così fan tutte, K. 588, Act 1: Finale. "Eccovi il medico" (Don Alfonso, Ferrando, Guglielmo, Despina, Fiordiligi, Dorabella)
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      date published: 2026-07-08T03:20:19Z
    audio: Mozart: Così fan tutte, K. 588, Act 1: Finale. "Eccovi il medico" (Don Alfonso, Ferrando, Guglielmo, Despina, Fiordiligi, Dorabella)
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  track: Mozart: Così fan tutte, K. 588, Act 1: Terzetto. "È la fede delle femmine" (Don Alfonso, Ferrando, Guglielmo)
  track: Mozart: Così fan tutte, K. 588, Act 1: Recitativo. "Scioccherie di poeti!" (Ferrando, Guglielmo, Don Alfonso)
  track: Mozart: Così fan tutte, K. 588, Act 1: Recitativo. "Dammi un bacio, o mio tesoro" (Ferrando, Guglielmo, Fiordiligi, Dorabella, Despina, Don Alfonso)
  track: Mozart: Così fan tutte, K. 588, Act 2: Recitativo. "Madame, trattar l'amore en bagatelle" (Despina, Fiordiligi, Dorabella)
  track: Mozart: Così fan tutte, K. 588, Act 1: Duetto. "Ah guarda, sorella" (Fiordiligi, Dorabella)
  track: Mozart: Così fan tutte, K. 588, Act 1: Recitativo. "Barbaro fato!" - Aria. "Vorrei dir, e cor non ho" (Don Alfonso)
  track: Mozart: Così fan tutte, K. 588, Act 2: Recitativo. "Cos'è tal mascherata?" (Fiordiligi, Dorabella, Despina, Ferrando, Guglielmo, Don Alfonso)
  track: Mozart: Così fan tutte, K. 588, Act 1: Coro. "Bella vita militar!" (Coro)
  track: Mozart: Così fan tutte, K. 588, Act 2: Duetto. "Il core vi dono" (Guglielmo, Dorabella)
  track: Mozart: Così fan tutte, K. 588, Act 1: Coro. "Bella vita militar!" (Coro) [Reprise]
  track: Mozart: Così fan tutte, K. 588, Act 2: Recitativo accompagnato. "Ei parte, senti, ah no!" (Fiordiligi)
  track: Mozart: Così fan tutte, K. 588, Act 1: Recitativo. "Dove son?" (Dorabella, Don Alfonso, Fiordiligi)
  track: Mozart: Così fan tutte, K. 588, Act 1: Terzettino. "Soave sia il vento" (Fiordiligi, Dorabella, Don Alfonso)
  track: Mozart: Così fan tutte, K. 588, Act 1: Recitativo accompagnato. "Ah, scostasti!" (Dorabella)
  track: Mozart: Così fan tutte, K. 588, Act 1: Aria. "Smanie implacabili che m'agitate" (Dorabella)
  track: Mozart: Così fan tutte, K. 588, Act 1: Aria. "In uomini, in soldati" (Despina)
  track: Mozart: Così fan tutte, K. 588, Act 1: Recitativo. "Che silenzio! Che aspetto di tristezza" (Don Alfonso, Despina)
  track: Mozart: Così fan tutte, K. 588, Act 1: Sestetto. "Alla bella Despinetta" (Don Alfonso, Ferrando, Guglielmo, Despina, Fiordiligi, Dorabella)
  track: Mozart: Così fan tutte, K. 588, Act 1: Aria. "Un'aura amorosa del nostro tesoro" (Ferrando)
  track: Mozart: Così fan tutte, K. 588, Act 1: Recitativo. "Fuor' la spada, scegliete" (Guglielmo, Don Alfonso, Ferrando)
  track: Mozart: Così fan tutte, K. 588, Act 1: Terzetto. "Una bella serenata" (Ferrando, Guglielmo, Don Alfonso)
  track: Mozart: Così fan tutte, K. 588, Act 1: Quintetto. "Sento, o Dio, che questo piede" (Guglielmo, Ferrando, Don Alfonso, Fiordiligi, Dorabella)
album: Donizetti: La fille du régiment (Live)
album: Clásicos Españoles. Zarzuela (Volumen II)
album: Verdi: La traviata
album: Verdi: Rigoletto
album: Verdi: Rigoletto (Recorded Live 1961)
album: Bizet: Les pêcheurs de perles (Sung in Italian) [Recorded 1960] [Live]
album: The Incomparable Alfredo Kraus
album: Canciones Italianas y Españolas
track: Così fan tutte, K. 588, Act I: Un'aura amorosa (Ferrando)
track: La traviata: Act II: Amami, Alfredo! (Violetta, Alfredo)
track: La traviata, Act I: Libiamo ne' lieti calici (Alfredo, Violetta)
track: La traviata: Act I: Libiamo ne' lieti calici (Alfredo, Violetta, Chorus)
track: La traviata / Act 1: "Follie! Delirio vano è questo!" - "Sempre libera"
track: La Bohème, Act I: O soave fanciulla (Rodolfo, Marcello, Mimì)
track: La bohème, SC 67, Act I: O soave fanciulla (Rodolfo, Marcello, Mimì)
track: Verdi: La traviata, Act 3: "Parigi, o cara, noi lasceremo" (Violetta, Alfredo)
track: Rigoletto, Act III: La donna è mobile
track: La traviata, Act I: Un di, felice, eterea

Mozart: Così fan tutte, K. 588, Act 1: Terzetto. "La mia Dorabella capace non è" (Ferrando, Guglielmo, Don Alfonso)
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by artist: Wolfgang Amadeus Mozart
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by artist: Walter Berry
by artist: Philharmonia Orchestra
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  date published: 1963-01-01
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genre: classical-era
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  date published: 2026-07-02T05:09:12Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Terzetto. "La mia Dorabella capace non è" (Ferrando, Guglielmo, Don Alfonso)
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Mozart: Così fan tutte, K. 588, Act 1: Terzetto. "È la fede delle femmine" (Don Alfonso, Ferrando, Guglielmo)
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  date published: 2026-07-02T05:09:12Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Terzetto. "È la fede delle femmine" (Don Alfonso, Ferrando, Guglielmo)
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Mozart: Così fan tutte, K. 588, Act 1: Recitativo. "Scioccherie di poeti!" (Ferrando, Guglielmo, Don Alfonso)
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  date published: 1963-01-01
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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: 2026-07-06T07:16:32Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Recitativo. "Scioccherie di poeti!" (Ferrando, Guglielmo, Don Alfonso)
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Mozart: Così fan tutte, K. 588, Act 1: Recitativo. "Fuor' la spada, scegliete" (Guglielmo, Don Alfonso, Ferrando)
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by artist: Karl Böhm
by artist: Alfredo Kraus
by artist: Giuseppe Taddei
by artist: Heinrich Schmidt
by artist: Walter Berry
by artist: Philharmonia Orchestra
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genre: classical
genre: classical-era
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  date published: 2026-07-22T11:35:32Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Recitativo. "Fuor' la spada, scegliete" (Guglielmo, Don Alfonso, Ferrando)
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Mozart: Così fan tutte, K. 588, Act 1: Terzetto. "Una bella serenata" (Ferrando, Guglielmo, Don Alfonso)
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by artist: Alfredo Kraus
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by artist: Walter Berry
by artist: Philharmonia Orchestra
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genre: classical
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  date published: 2026-07-22T20:04:47Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Terzetto. "Una bella serenata" (Ferrando, Guglielmo, Don Alfonso)
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Mozart: Così fan tutte, K. 588, Act 1: Quintetto. "Sento, o Dio, che questo piede" (Guglielmo, Ferrando, Don Alfonso, Fiordiligi, Dorabella)
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duration: PT4M48S
duration ms: 288506
explicit: false
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by artist: Karl Böhm
by artist: Alfredo Kraus
by artist: Christa Ludwig
by artist: Elisabeth Schwarzkopf
by artist: Giuseppe Taddei
by artist: Heinrich Schmidt
by artist: Walter Berry
by artist: Philharmonia Orchestra
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genre: classical
genre: classical-era
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T17:24:34Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Quintetto. "Sento, o Dio, che questo piede" (Guglielmo, Ferrando, Don Alfonso, Fiordiligi, Dorabella)
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additional property: OTSVerificationAPI
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Serenata
type: MusicRecording
duration: PT2M59S
duration ms: 179546
explicit: false
by artist: Enrico Toselli
by artist: Alfredo Kraus
by artist: Enrique Estela
by artist: Orquesta De Camara De Madrid
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popularity: 10
isrc code: ES5271003810
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additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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  date published: 2026-07-02T03:55:08Z
audio: Serenata
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O sole mío
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by artist: Eduardo di Capua
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by artist: Enrique Estela
by artist: Orquesta De Camara De Madrid
in album: Canciones Italianas y Españolas
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popularity: 6
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T11:35:32Z
audio: O sole mío
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La traviata: Act II: Amami, Alfredo! (Violetta, Alfredo)
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by artist: Orquestra Sinfónica do Teatro Nacional de São Carlos Lisboa
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by artist: Franco Ghione
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  date published: 2014-10-07
popularity: 26
genre: classical
genre: opera
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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: 2026-07-02T05:09:12Z
audio: La traviata: Act II: Amami, Alfredo! (Violetta, Alfredo)
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La traviata: Act I: Libiamo ne' lieti calici (Alfredo, Violetta, Chorus)
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by artist: Alfredo Kraus
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by artist: Maria Callas
by artist: Franco Ghione
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popularity: 16
genre: classical
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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
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953520
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T13:32:09+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 0xe330a5ccbdce6a7cda57a6d39e662d5cdf1c2a9a612f4f7e18a6148ec4e5e139. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1085582.
  date published: 2026-06-13T13:32:09Z
audio: La traviata: Act I: Libiamo ne' lieti calici (Alfredo, Violetta, Chorus)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 191.76
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.332
  additional property: Energy
    type: PropertyValue
    value: 0.254
  additional property: Speechiness
    type: PropertyValue
    value: 0.136
  additional property: Acousticness
    type: PropertyValue
    value: 0.945
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.342
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.36
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.972
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Speechiness
type: PropertyValue
value: 0.046

Acousticness
type: PropertyValue
value: 0.927

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.325

Valence (Positivity)
type: PropertyValue
value: 0.291

Loudness (dB)
type: PropertyValue
value: -22.635

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Mozart: Così fan tutte, K. 588, Act 1: Recitativo. "Dammi un bacio, o mio tesoro" (Ferrando, Guglielmo, Fiordiligi, Dorabella, Despina, Don Alfonso)
type: MusicRecording
duration: PT3M31S
duration ms: 211573
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karl Böhm
by artist: Alfredo Kraus
by artist: Christa Ludwig
by artist: Elisabeth Schwarzkopf
by artist: Giuseppe Taddei
by artist: Hanny Steffek
by artist: Heinrich Schmidt
by artist: Walter Berry
by artist: Philharmonia Orchestra
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1963-01-01
genre: classical
genre: classical-era
isrc code: GBAYC0001073
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:49:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x901a44ea0f73409ad28612fe09a3c3afa8a06ea90d2f4a3c65521790cef04a3c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957050
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957050
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0001073
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T14:41:13Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901a44ea0f73409ad28612fe09a3c3afa8a06ea90d2f4a3c65521790cef04a3c. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GBAYC0001073.
  date published: 2026-07-07T14:41:13Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Recitativo. "Dammi un bacio, o mio tesoro" (Ferrando, Guglielmo, Fiordiligi, Dorabella, Despina, Don Alfonso)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.543
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.52
  additional property: Energy
    type: PropertyValue
    value: 0.279
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.909
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.081
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.527
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.286
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Così fan tutte, K. 588, Act 2: Recitativo. "Madame, trattar l'amore en bagatelle" (Despina, Fiordiligi, Dorabella)
type: MusicRecording
duration: PT1M4S
duration ms: 64160
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karl Böhm
by artist: Christa Ludwig
by artist: Elisabeth Schwarzkopf
by artist: Hanny Steffek
by artist: Heinrich Schmidt
by artist: Philharmonia Orchestra
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1963-01-01
genre: classical
genre: classical-era
isrc code: GBAYC0001074
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:29:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0d8cfbefc96a7f3358ec4db4e6ee736fbab29f02ef97439814706eec7186e514
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0001074
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8cfbefc96a7f3358ec4db4e6ee736fbab29f02ef97439814706eec7186e514. 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/GBAYC0001074.
  date published: 2026-07-08T03:22:41Z
audio: Mozart: Così fan tutte, K. 588, Act 2: Recitativo. "Madame, trattar l'amore en bagatelle" (Despina, Fiordiligi, Dorabella)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 88.054
  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: 0.713
  additional property: Energy
    type: PropertyValue
    value: 0.065
  additional property: Speechiness
    type: PropertyValue
    value: 0.468
  additional property: Acousticness
    type: PropertyValue
    value: 0.95
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.577
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.504
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.104
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Così fan tutte, K. 588, Act 1: Duetto. "Ah guarda, sorella" (Fiordiligi, Dorabella)
type: MusicRecording
duration: PT4M44S
duration ms: 284440
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karl Böhm
by artist: Christa Ludwig
by artist: Elisabeth Schwarzkopf
by artist: Heinrich Schmidt
by artist: Philharmonia Orchestra
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1963-01-01
genre: classical
genre: classical-era
isrc code: GBAYC0001041
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T19:43:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5986e5c8b789cc670f19bc8c50ded6f055a5afba7aad6b0a3d2636ae33210919
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0001041
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5986e5c8b789cc670f19bc8c50ded6f055a5afba7aad6b0a3d2636ae33210919. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0001041.
  date published: 2026-07-02T05:09:12Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Duetto. "Ah guarda, sorella" (Fiordiligi, Dorabella)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.409
  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: 0.334
  additional property: Energy
    type: PropertyValue
    value: 0.095
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.137
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.075
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.713
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Così fan tutte, K. 588, Act 1: Recitativo. "Barbaro fato!" - Aria. "Vorrei dir, e cor non ho" (Don Alfonso)
type: MusicRecording
duration: PT0M40S
duration ms: 40933
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karl Böhm
by artist: Heinrich Schmidt
by artist: Walter Berry
by artist: Philharmonia Orchestra
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1963-01-01
genre: classical
genre: classical-era
isrc code: GBAYC0001043
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T07:16:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7952a890c829fae7fe408572e1151522da96c980cd09eda96b2ce726b9c6cf00
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957075
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957075
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0001043
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T17:16:25Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7952a890c829fae7fe408572e1151522da96c980cd09eda96b2ce726b9c6cf00. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T17:16:25Z), 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/GBAYC0001043.
  date published: 2026-07-21T17:16:25Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Recitativo. "Barbaro fato!" - Aria. "Vorrei dir, e cor non ho" (Don Alfonso)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.393
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.512
  additional property: Energy
    type: PropertyValue
    value: 0.172
  additional property: Speechiness
    type: PropertyValue
    value: 0.163
  additional property: Acousticness
    type: PropertyValue
    value: 0.954
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.021
  additional property: Liveness
    type: PropertyValue
    value: 0.154
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.489
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.718
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mozart: Così fan tutte, K. 588, Act 2: Recitativo. "Cos'è tal mascherata?" (Fiordiligi, Dorabella, Despina, Ferrando, Guglielmo, Don Alfonso)
type: MusicRecording
duration: PT0M39S
duration ms: 39000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karl Böhm
by artist: Alfredo Kraus
by artist: Christa Ludwig
by artist: Elisabeth Schwarzkopf
by artist: Giuseppe Taddei
by artist: Hanny Steffek
by artist: Heinrich Schmidt
by artist: Walter Berry
by artist: Philharmonia Orchestra
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1963-01-01
genre: classical
genre: classical-era
isrc code: GBAYC0001079
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:09:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2b37c95535445f5a049cb90cc0945354ea857ed9f7dc1f408f1f962670e8cfee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0001079
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b37c95535445f5a049cb90cc0945354ea857ed9f7dc1f408f1f962670e8cfee. 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/GBAYC0001079.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Così fan tutte, K. 588, Act 2: Recitativo. "Cos'è tal mascherata?" (Fiordiligi, Dorabella, Despina, Ferrando, Guglielmo, Don Alfonso)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.626
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.75
  additional property: Energy
    type: PropertyValue
    value: 0.088
  additional property: Speechiness
    type: PropertyValue
    value: 0.498
  additional property: Acousticness
    type: PropertyValue
    value: 0.927
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.126
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.681
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.971
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mozart: Così fan tutte, K. 588, Act 1: Coro. "Bella vita militar!" (Coro)
type: MusicRecording
duration: PT1M47S
duration ms: 107440
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karl Böhm
by artist: Heinrich Schmidt
by artist: Philharmonia Chorus
by artist: Philharmonia Orchestra
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1963-01-01
genre: classical
genre: classical-era
isrc code: GBAYC0001047
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T18:36:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x544e2d2e346a28296cb760093c1888f4c52eba2c35959d4f64a9a99ad779bd26
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0001047
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544e2d2e346a28296cb760093c1888f4c52eba2c35959d4f64a9a99ad779bd26. 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/GBAYC0001047.
  date published: 2026-07-08T03:22:41Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Coro. "Bella vita militar!" (Coro)
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Mozart: Così fan tutte, K. 588, Act 2: Duetto. "Il core vi dono" (Guglielmo, Dorabella)
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duration: PT4M41S
duration ms: 281973
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karl Böhm
by artist: Christa Ludwig
by artist: Giuseppe Taddei
by artist: Heinrich Schmidt
by artist: Philharmonia Orchestra
in album: Mozart: Così fan tutte
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  date published: 1963-01-01
genre: classical
genre: classical-era
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additional property: CopyrightStatus
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e5e40bf6bbeb77feb1986cabbe1661b50970166a18b74c612ac4daff75184d. 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/GBAYC0001082.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Così fan tutte, K. 588, Act 2: Duetto. "Il core vi dono" (Guglielmo, Dorabella)
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Mozart: Così fan tutte, K. 588, Act 1: Coro. "Bella vita militar!" (Coro) [Reprise]
type: MusicRecording
duration: PT0M57S
duration ms: 57533
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karl Böhm
by artist: Heinrich Schmidt
by artist: Philharmonia Chorus
by artist: Philharmonia Orchestra
in album: Mozart: Così fan tutte
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  date published: 1963-01-01
genre: classical
genre: classical-era
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additional property: CopyrightStatus
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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
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb071636032cd6cbd9fb9b196fc0fd57115202b3e38dd11423b32a096a3dd5a. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/GBAYC0001050.
  date published: 2026-07-07T13:52:39Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Coro. "Bella vita militar!" (Coro) [Reprise]
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Mozart: Così fan tutte, K. 588, Act 2: Recitativo accompagnato. "Ei parte, senti, ah no!" (Fiordiligi)
type: MusicRecording
duration: PT1M26S
duration ms: 86333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karl Böhm
by artist: Elisabeth Schwarzkopf
by artist: Heinrich Schmidt
by artist: Philharmonia Orchestra
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1963-01-01
genre: classical
genre: classical-era
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-08T03:20:19Z
audio: Mozart: Così fan tutte, K. 588, Act 2: Recitativo accompagnato. "Ei parte, senti, ah no!" (Fiordiligi)
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Mozart: Così fan tutte, K. 588, Act 1: Recitativo. "Dove son?" (Dorabella, Don Alfonso, Fiordiligi)
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duration: PT0M51S
duration ms: 51600
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karl Böhm
by artist: Christa Ludwig
by artist: Elisabeth Schwarzkopf
by artist: Heinrich Schmidt
by artist: Walter Berry
by artist: Philharmonia Orchestra
in album: Mozart: Così fan tutte
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  date published: 1963-01-01
genre: classical
genre: classical-era
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba80330bd7e5de81e87369321f8f53af48957f0bd473c98ede2771e668d618e6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBAYC0001051.
  date published: 2026-07-06T06:56:49Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Recitativo. "Dove son?" (Dorabella, Don Alfonso, Fiordiligi)
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  additional property: Tempo (BPM)
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  additional property: Valence (Positivity)
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Mozart: Così fan tutte, K. 588, Act 1: Terzettino. "Soave sia il vento" (Fiordiligi, Dorabella, Don Alfonso)
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duration: PT3M4S
duration ms: 184000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Elisabeth Schwarzkopf
by artist: Christa Ludwig
by artist: Heinrich Schmidt
by artist: Walter Berry
by artist: Karl Böhm
by artist: Philharmonia Orchestra
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1963-01-01
popularity: 31
genre: classical
genre: classical-era
isrc code: GBAYC0001052
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a410bb23eec4e62fed10d09e13537499c47e51415e925f8855e701e76af512. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0001052.
  date published: 2026-06-13T12:47:07Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Terzettino. "Soave sia il vento" (Fiordiligi, Dorabella, Don Alfonso)
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  additional property: Danceability
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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Mozart: Così fan tutte, K. 588, Act 1: Recitativo accompagnato. "Ah, scostasti!" (Dorabella)
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duration: PT0M56S
duration ms: 56960
explicit: false
by artist: Wolfgang Amadeus Mozart
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by artist: Christa Ludwig
by artist: Heinrich Schmidt
by artist: Philharmonia Orchestra
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genre: classical
genre: classical-era
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326cdeb8827ba122cceac916aac7f172d7eff69a64f1aa4d57dfca3c723954c4. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/GBAYC0001055.
  date published: 2026-07-07T09:18:01Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Recitativo accompagnato. "Ah, scostasti!" (Dorabella)
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Mozart: Così fan tutte, K. 588, Act 1: Aria. "Smanie implacabili che m'agitate" (Dorabella)
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duration: PT1M57S
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explicit: false
by artist: Wolfgang Amadeus Mozart
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by artist: Christa Ludwig
by artist: Heinrich Schmidt
by artist: Philharmonia Orchestra
in album: Mozart: Così fan tutte
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genre: classical
genre: classical-era
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0001056
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7535da2516de886d8701595fe8c5e0b748e81cfbbc1470133d7138d914ec8a2d. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0001056.
  date published: 2026-07-07T18:39:05Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Aria. "Smanie implacabili che m'agitate" (Dorabella)
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    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Liveness
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  additional property: Valence (Positivity)
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Mozart: Così fan tutte, K. 588, Act 1: Aria. "In uomini, in soldati" (Despina)
type: MusicRecording
duration: PT2M37S
duration ms: 157840
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karl Böhm
by artist: Hanny Steffek
by artist: Heinrich Schmidt
by artist: Philharmonia Orchestra
in album: Mozart: Così fan tutte
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  date published: 1963-01-01
genre: classical
genre: classical-era
isrc code: GBAYC0001058
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0001058
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30cc36ce1c97847a2bb4eaba3fd735fbf13f44a87cad9f674fbefe69258f66a. 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/GBAYC0001058.
  date published: 2026-07-08T03:22:41Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Aria. "In uomini, in soldati" (Despina)
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Mozart: Così fan tutte, K. 588, Act 1: Recitativo. "Che silenzio! Che aspetto di tristezza" (Don Alfonso, Despina)
type: MusicRecording
duration: PT2M11S
duration ms: 131693
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karl Böhm
by artist: Hanny Steffek
by artist: Heinrich Schmidt
by artist: Walter Berry
by artist: Philharmonia Orchestra
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1963-01-01
genre: classical
genre: classical-era
isrc code: GBAYC0001059
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0001059
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795d5b99c4c297a81cc59e003ffece081509996980d71aacdd1f7df617755f93. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0001059.
  date published: 2026-07-07T18:50:38Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Recitativo. "Che silenzio! Che aspetto di tristezza" (Don Alfonso, Despina)
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Mozart: Così fan tutte, K. 588, Act 1: Sestetto. "Alla bella Despinetta" (Don Alfonso, Ferrando, Guglielmo, Despina, Fiordiligi, Dorabella)
type: MusicRecording
duration: PT4M42S
duration ms: 282066
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karl Böhm
by artist: Alfredo Kraus
by artist: Christa Ludwig
by artist: Elisabeth Schwarzkopf
by artist: Giuseppe Taddei
by artist: Hanny Steffek
by artist: Heinrich Schmidt
by artist: Walter Berry
by artist: Philharmonia Orchestra
in album: Mozart: Così fan tutte
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  date published: 1963-01-01
genre: classical
genre: classical-era
isrc code: GBAYC0001060
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0001060
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafe94d1f165898fbcda18e08a32b5d05f824d53d28feff091032933e3812f1d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBAYC0001060.
  date published: 2026-07-06T06:56:49Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Sestetto. "Alla bella Despinetta" (Don Alfonso, Ferrando, Guglielmo, Despina, Fiordiligi, Dorabella)
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  additional property: Danceability
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  additional property: Acousticness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Mode Name
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Mozart: Così fan tutte, K. 588, Act 1: Aria. "Un'aura amorosa del nostro tesoro" (Ferrando)
type: MusicRecording
duration: PT4M45S
duration ms: 285093
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karl Böhm
by artist: Alfredo Kraus
by artist: Heinrich Schmidt
by artist: Philharmonia Orchestra
in album: Mozart: Così fan tutte
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  date published: 1963-01-01
genre: classical
genre: classical-era
isrc code: GBAYC0001068
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b33b2a765bcdbb2411ecac44ce7669da6dd3d6b5b2843d2bba4418f604e9d4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBAYC0001068.
  date published: 2026-06-13T12:53:06Z
audio: Mozart: Così fan tutte, K. 588, Act 1: Aria. "Un'aura amorosa del nostro tesoro" (Ferrando)
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  additional property: Instrumentalness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Donizetti: La fille du régiment (Live)
type: MusicAlbum
date published: 2022-12-16
track: Donizetti: La fille du régiment, Act 1: "La voilà" - Duo. "Au bruit de la guerre" (Sulpice, Marie, Chœur) [Live]
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  by artist: Bruno Campanella
  by artist: Chœur du Théâtre national de l'Opéra de Paris
  by artist: June Anderson
  by artist: Michel Trempont
  by artist: Orchestre du Théâtre National de l'Opéra de Paris
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    date published: 2022-12-16
  popularity: 2
  genre: opera
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957145
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ118603608
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T08:56:20Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35e74fd208e5530ca01a2d847de59b7d94c01671bd8c546a1b126b73be820c2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ118603608.
    date published: 2026-07-08T08:56:20Z
  audio: Donizetti: La fille du régiment, Act 1: "La voilà" - Duo. "Au bruit de la guerre" (Sulpice, Marie, Chœur) [Live]
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    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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Clásicos Españoles. Zarzuela (Volumen II)
type: MusicAlbum
date published: 2004

Verdi: La traviata
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date published: 1982
track: Verdi: La traviata, Act 1: Prelude
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  duration: PT3M50S
  duration ms: 230333
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  by artist: Giuseppe Verdi
  by artist: Philharmonia Orchestra
  by artist: Riccardo Muti
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    date published: 1982
  popularity: 29
  genre: classical
  genre: opera
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-06-13T15:41:10Z
  audio: Verdi: La traviata, Act 1: Prelude
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -36.414
    additional property: Key Name
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track: Verdi: La traviata, Act 1: "Che è ciò?" (Chorus, Violetta, Alfredo)
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  by artist: Giuseppe Verdi
  by artist: Philharmonia Orchestra
  by artist: Riccardo Muti
  by artist: Alfredo Kraus
  by artist: Ambrosian Opera Chorus
  by artist: Renata Scotto
  in album: Verdi: La traviata
    type: MusicAlbum
    date published: 1982
  popularity: 4
  genre: classical
  genre: opera
  isrc code: GBAYC8000073
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957145
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000073
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T08:56:20Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087ea41c1bc67b814f23278eef61cd71c9dac37b53a5b3de25da7d17e24fa456. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000073.
    date published: 2026-07-08T08:56:20Z
  audio: Verdi: La traviata, Act 1: "Che è ciò?" (Chorus, Violetta, Alfredo)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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track: Verdi: La traviata, Act 2: "Alfredo! Voi! (Flora, Alfredo, Gastone, Dottore, Marchese, Chorus, Violetta, Barone)
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  duration: PT3M21S
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  by artist: Giuseppe Verdi
  by artist: Philharmonia Orchestra
  by artist: Riccardo Muti
  by artist: Alfredo Kraus
  by artist: Ambrosian Opera Chorus
  by artist: Henry Newman
  by artist: Renata Scotto
  by artist: Richard van Allan
  by artist: Roderick Kennedy
  by artist: Sarah Walker
  by artist: Suso Mariategui
  in album: Verdi: La traviata
  popularity: 2
  genre: classical
  genre: opera
  isrc code: GBAYC8000110
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Verdi: La traviata, Act 2: "Alfredo! Voi! (Flora, Alfredo, Gastone, Dottore, Marchese, Chorus, Violetta, Barone)
track: Verdi: La traviata, Act 1: "Ebben? Che diavol fate?" (Gastone, Violetta, Alfredo)
track: Verdi: La traviata, Act 2: "Ogni suo aver tal femmina" (Alfredo, Chorus)
track: Verdi: La traviata, Act 2: "Di sprezzo degno sé stesso rende" (Germont , Alfredo, Barone, Others, Except Violetta)
track: Verdi: La traviata, Act 1: "Ah, fors'è lui" (Violetta)
track: Verdi: La traviata, Act 3: "Annina?... Comandate?" (Violetta, Annina, Dottore)
track: Verdi: La traviata, Act 1: "Sempre libera" (Violetta, Alfredo)
track: Verdi: La traviata, Act 2: "De’ miei bollenti spiriti" (Alfredo)
track: Verdi: La traviata, Act 3: "Signora!... Che t’accadde?" (Annina, Violetta, Alfredo)
track: Verdi: La traviata, Act 3: "Ah, non più" - "Ah! gran Dio! Morir sì giovine" (Alfredo, Violetta)
track: Verdi: La traviata, Act 2: "Non sapete quale affetto" (Violetta, Germont)
track: Verdi: La traviata, Act 2: "Un dì, quando le veneri" (Germont, Violetta)
track: Verdi: La traviata, Act 2: "Ah! dite alla giovine" (Violetta, Germont)
track: Verdi: La traviata, Act 2: "Che fai?... Nulla" (Alfredo, Violetta)
track: Verdi: La traviata, Act 2: "Di Provenza il mar, il suol" (Germont)

Verdi: La traviata
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date published: 1982

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CopyrightStatus
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CopyrightRegisteredAt
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CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0x7e9c8489087c7a44c453451ef751719d739bf309f7aadeb3d51357f35dc4978b

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 957145

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957145

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000110

OTSTimestamp
type: PropertyValue
value: 2026-07-08T08:56:20Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9c8489087c7a44c453451ef751719d739bf309f7aadeb3d51357f35dc4978b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000110.
date published: 2026-07-08T08:56:20Z

Verdi: La traviata, Act 2: "Alfredo! Voi! (Flora, Alfredo, Gastone, Dottore, Marchese, Chorus, Violetta, Barone)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
  type: PropertyValue
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
  type: PropertyValue
  value: -26.223
additional property: Key Name
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additional property: Mode Name
  type: PropertyValue
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Verdi: La traviata, Act 1: "Ebben? Che diavol fate?" (Gastone, Violetta, Alfredo)
type: MusicRecording
duration: PT1M11S
duration ms: 71386
explicit: false
by artist: Giuseppe Verdi
by artist: Philharmonia Orchestra
by artist: Riccardo Muti
by artist: Alfredo Kraus
by artist: Renata Scotto
by artist: Suso Mariategui
in album: Verdi: La traviata
  type: MusicAlbum
  date published: 1982
popularity: 3
genre: classical
genre: opera
isrc code: GBAYC8000075
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:21:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdf26179395413be3942d9dd43f611a6285cfedc0c4ae2c321b2728b35f09052a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000075
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf26179395413be3942d9dd43f611a6285cfedc0c4ae2c321b2728b35f09052a. 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/GBAYC8000075.
  date published: 2026-07-08T03:20:19Z
audio: Verdi: La traviata, Act 1: "Ebben? Che diavol fate?" (Gastone, Violetta, Alfredo)
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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
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
    value: 0.082
  additional property: Speechiness
    type: PropertyValue
    value: 0.136
  additional property: Acousticness
    type: PropertyValue
    value: 0.94
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.006
  additional property: Liveness
    type: PropertyValue
    value: 0.342
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.359
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.316
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: La traviata, Act 2: "Ogni suo aver tal femmina" (Alfredo, Chorus)
type: MusicRecording
duration: PT1M34S
duration ms: 94120
explicit: false
by artist: Giuseppe Verdi
by artist: Philharmonia Orchestra
by artist: Riccardo Muti
by artist: Alfredo Kraus
by artist: Ambrosian Opera Chorus
in album: Verdi: La traviata
  type: MusicAlbum
  date published: 1982
popularity: 2
genre: classical
genre: opera
isrc code: GBAYC8000112
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:27:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x53e4572ef9f94de6a0575b4185cd7f6c525f4067bec1a7076ec7865d0809f4be
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000112
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e4572ef9f94de6a0575b4185cd7f6c525f4067bec1a7076ec7865d0809f4be. 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/GBAYC8000112.
  date published: 2026-07-08T03:22:41Z
audio: Verdi: La traviata, Act 2: "Ogni suo aver tal femmina" (Alfredo, Chorus)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.897
  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: 0.332
  additional property: Energy
    type: PropertyValue
    value: 0.27
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.906
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.645
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.306
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.823
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: La traviata, Act 2: "Di sprezzo degno sé stesso rende" (Germont , Alfredo, Barone, Others, Except Violetta)
type: MusicRecording
duration: PT1M54S
duration ms: 114506
explicit: false
by artist: Giuseppe Verdi
by artist: Philharmonia Orchestra
by artist: Riccardo Muti
by artist: Alfredo Kraus
by artist: Ambrosian Opera Chorus
by artist: Christopher Keyte
by artist: Cynthia Buchan
by artist: Henry Newman
by artist: Max-René Cosotti
by artist: Renato Bruson
by artist: Richard van Allan
by artist: Roderick Kennedy
by artist: Sarah Walker
by artist: Suso Mariategui
in album: Verdi: La traviata
  type: MusicAlbum
  date published: 1982
popularity: 1
genre: classical
genre: opera
isrc code: GBAYC8000113
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-08T00:32:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x408a7a31e6a2f092fc7277e80450b31126bec8ccfd3887bd8a14fd61f1d94714
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957122
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957122
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000113
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:39:04Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408a7a31e6a2f092fc7277e80450b31126bec8ccfd3887bd8a14fd61f1d94714. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBAYC8000113.
  date published: 2026-07-08T03:39:04Z
audio: Verdi: La traviata, Act 2: "Di sprezzo degno sé stesso rende" (Germont , Alfredo, Barone, Others, Except Violetta)
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  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Verdi: La traviata, Act 1: "Ah, fors'è lui" (Violetta)
type: MusicRecording
duration: PT5M13S
duration ms: 313666
explicit: false
by artist: Giuseppe Verdi
by artist: Philharmonia Orchestra
by artist: Riccardo Muti
by artist: Renata Scotto
in album: Verdi: La traviata
  type: MusicAlbum
  date published: 1982
popularity: 4
genre: classical
genre: opera
isrc code: GBAYC8000079
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T04:44:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x70e09bb0b81a04492f2eed1dde72750fe96abe92c06cfe01fbb4371b0733654c
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000079
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Verdi: La traviata, Act 1: "Ah, fors'è lui" (Violetta)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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    value: 0
  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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    value: -29.716
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Verdi: La traviata, Act 3: "Annina?... Comandate?" (Violetta, Annina, Dottore)
type: MusicRecording
duration: PT4M44S
duration ms: 284200
explicit: false
by artist: Giuseppe Verdi
by artist: Philharmonia Orchestra
by artist: Riccardo Muti
by artist: Cynthia Buchan
by artist: Renata Scotto
by artist: Roderick Kennedy
in album: Verdi: La traviata
  type: MusicAlbum
  date published: 1982
popularity: 2
genre: classical
genre: opera
isrc code: GBAYC8000118
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x52e0836f6d4084a32efb6abbb99e2dc1a40a8c4fbca7b88b5313c9f8fa56ac36
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000118
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e0836f6d4084a32efb6abbb99e2dc1a40a8c4fbca7b88b5313c9f8fa56ac36. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000118.
  date published: 2026-07-08T08:56:20Z
audio: Verdi: La traviata, Act 3: "Annina?... Comandate?" (Violetta, Annina, Dottore)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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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: 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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Verdi: La traviata, Act 1: "Sempre libera" (Violetta, Alfredo)
type: MusicRecording
duration: PT3M29S
duration ms: 209706
explicit: false
by artist: Giuseppe Verdi
by artist: Philharmonia Orchestra
by artist: Riccardo Muti
by artist: Alfredo Kraus
by artist: Renata Scotto
in album: Verdi: La traviata
  type: MusicAlbum
  date published: 1982
popularity: 5
genre: classical
genre: opera
isrc code: GBAYC8000082
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T05:04:41+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x48a213d0ca59ef753275576552ec7794b8fbfcbd9c8f609af123c5dc62f30839
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957065
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000082
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T16:43:21Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a213d0ca59ef753275576552ec7794b8fbfcbd9c8f609af123c5dc62f30839. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/GBAYC8000082.
  date published: 2026-07-07T16:43:21Z
audio: Verdi: La traviata, Act 1: "Sempre libera" (Violetta, Alfredo)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
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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
    type: PropertyValue
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Verdi: La traviata, Act 2: "De’ miei bollenti spiriti" (Alfredo)
type: MusicRecording
duration: PT2M6S
duration ms: 126280
explicit: false
by artist: Giuseppe Verdi
by artist: Philharmonia Orchestra
by artist: Riccardo Muti
by artist: Alfredo Kraus
in album: Verdi: La traviata
  type: MusicAlbum
  date published: 1982
popularity: 3
genre: classical
genre: opera
isrc code: GBAYC8000088
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T05:21:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe18e12528879b0fd1d2e15bf3b64fd372ad12771773e445370539d1d0413dc77
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000088
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18e12528879b0fd1d2e15bf3b64fd372ad12771773e445370539d1d0413dc77. 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/GBAYC8000088.
  date published: 2026-07-08T03:53:27Z
audio: Verdi: La traviata, Act 2: "De’ miei bollenti spiriti" (Alfredo)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.299
  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)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Verdi: La traviata, Act 3: "Signora!... Che t’accadde?" (Annina, Violetta, Alfredo)
type: MusicRecording
duration: PT1M34S
duration ms: 94973
explicit: false
by artist: Giuseppe Verdi
by artist: Philharmonia Orchestra
by artist: Riccardo Muti
by artist: Alfredo Kraus
by artist: Cynthia Buchan
by artist: Renata Scotto
in album: Verdi: La traviata
  type: MusicAlbum
  date published: 1982
popularity: 2
genre: classical
genre: opera
isrc code: GBAYC8000122
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-08T00:35:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x976993ddf590ba205a63cd0a76c67164673cf4704fae3dd2ff7009a6dd88560b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957122
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957122
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000122
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:39:04Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976993ddf590ba205a63cd0a76c67164673cf4704fae3dd2ff7009a6dd88560b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBAYC8000122.
  date published: 2026-07-08T03:39:04Z
audio: Verdi: La traviata, Act 3: "Signora!... Che t’accadde?" (Annina, Violetta, Alfredo)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 94.746
  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: 0.417
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.1
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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    value: 0.047
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.891
  additional property: Key Name
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  additional property: Mode Name
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Verdi: La traviata, Act 3: "Ah, non più" - "Ah! gran Dio! Morir sì giovine" (Alfredo, Violetta)
type: MusicRecording
duration: PT4M39S
duration ms: 279893
explicit: false
by artist: Giuseppe Verdi
by artist: Philharmonia Orchestra
by artist: Riccardo Muti
by artist: Alfredo Kraus
by artist: Renata Scotto
in album: Verdi: La traviata
  type: MusicAlbum
  date published: 1982
popularity: 2
genre: classical
genre: opera
isrc code: GBAYC8000124
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T21:50:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8ac2fee2dfb7ee375a68a175fc0472d8ebe453eb3e92c3e76cdf075cbb4bcde1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000124
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac2fee2dfb7ee375a68a175fc0472d8ebe453eb3e92c3e76cdf075cbb4bcde1. 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/GBAYC8000124.
  date published: 2026-07-08T03:22:41Z
audio: Verdi: La traviata, Act 3: "Ah, non più" - "Ah! gran Dio! Morir sì giovine" (Alfredo, Violetta)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.721
  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: 0.375
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.059
  additional property: Acousticness
    type: PropertyValue
    value: 0.93
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.574
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.107
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.493
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Verdi: La traviata, Act 2: "Non sapete quale affetto" (Violetta, Germont)
type: MusicRecording
duration: PT2M9S
duration ms: 129160
explicit: false
by artist: Giuseppe Verdi
by artist: Philharmonia Orchestra
by artist: Riccardo Muti
by artist: Renata Scotto
by artist: Renato Bruson
in album: Verdi: La traviata
  type: MusicAlbum
  date published: 1982
popularity: 3
genre: classical
genre: opera
isrc code: GBAYC8000094
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:25:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x56830d7f553ddabda5684f1887764546ba62051b678f0f83b1d50d3c6300f2cf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000094
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56830d7f553ddabda5684f1887764546ba62051b678f0f83b1d50d3c6300f2cf. 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/GBAYC8000094.
  date published: 2026-07-08T03:22:41Z
audio: Verdi: La traviata, Act 2: "Non sapete quale affetto" (Violetta, Germont)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.276
  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: 0.339
  additional property: Energy
    type: PropertyValue
    value: 0.13
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.947
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.342
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.45
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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Verdi: La traviata, Act 2: "Un dì, quando le veneri" (Germont, Violetta)
type: MusicRecording
duration: PT2M40S
duration ms: 160666
explicit: false
by artist: Giuseppe Verdi
by artist: Philharmonia Orchestra
by artist: Riccardo Muti
by artist: Renata Scotto
by artist: Renato Bruson
in album: Verdi: La traviata
  type: MusicAlbum
  date published: 1982
popularity: 3
genre: classical
genre: opera
isrc code: GBAYC8000095
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:19:09+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x60c77e86518f9cd6f6ce9a792e51f537b27af0882601f246031d28a0003d615a
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000095
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c77e86518f9cd6f6ce9a792e51f537b27af0882601f246031d28a0003d615a. 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/GBAYC8000095.
  date published: 2026-07-08T03:53:27Z
audio: Verdi: La traviata, Act 2: "Un dì, quando le veneri" (Germont, Violetta)
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 109.39
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.272
  additional property: Energy
    type: PropertyValue
    value: 0.13
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.216
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.122
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.669
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: La traviata, Act 2: "Ah! dite alla giovine" (Violetta, Germont)
type: MusicRecording
duration: PT4M18S
duration ms: 258346
explicit: false
by artist: Giuseppe Verdi
by artist: Philharmonia Orchestra
by artist: Riccardo Muti
by artist: Renata Scotto
by artist: Renato Bruson
in album: Verdi: La traviata
  type: MusicAlbum
  date published: 1982
popularity: 3
genre: classical
genre: opera
isrc code: GBAYC8000096
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:32:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8380967439778f6029d696b9030d6564a8e6b943538c10f847df0e32643d745e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000096
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8380967439778f6029d696b9030d6564a8e6b943538c10f847df0e32643d745e. 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/GBAYC8000096.
  date published: 2026-07-08T03:22:41Z
audio: Verdi: La traviata, Act 2: "Ah! dite alla giovine" (Violetta, Germont)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 166.328
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.198
  additional property: Energy
    type: PropertyValue
    value: 0.136
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.12
  additional property: Liveness
    type: PropertyValue
    value: 0.089
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.045
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.501
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: La traviata, Act 2: "Che fai?... Nulla" (Alfredo, Violetta)
type: MusicRecording
duration: PT2M31S
duration ms: 151506
explicit: false
by artist: Giuseppe Verdi
by artist: Philharmonia Orchestra
by artist: Riccardo Muti
by artist: Alfredo Kraus
by artist: Renata Scotto
in album: Verdi: La traviata
  type: MusicAlbum
  date published: 1982
popularity: 3
genre: classical
genre: opera
isrc code: GBAYC8000100
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:53:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdfa342ee3070e35aec3029a180966798633aa6fd483bb98c522f261488aa12ce
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000100
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa342ee3070e35aec3029a180966798633aa6fd483bb98c522f261488aa12ce. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000100.
  date published: 2026-07-08T08:56:20Z
audio: Verdi: La traviata, Act 2: "Che fai?... Nulla" (Alfredo, Violetta)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.233
  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: 0.315
  additional property: Energy
    type: PropertyValue
    value: 0.218
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.937
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.028
  additional property: Liveness
    type: PropertyValue
    value: 0.268
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.227
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.436
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: La traviata, Act 2: "Di Provenza il mar, il suol" (Germont)
type: MusicRecording
duration: PT4M40S
duration ms: 280306
explicit: false
by artist: Giuseppe Verdi
by artist: Philharmonia Orchestra
by artist: Riccardo Muti
by artist: Renato Bruson
in album: Verdi: La traviata
  type: MusicAlbum
  date published: 1982
popularity: 3
genre: classical
genre: opera
isrc code: GBAYC8000103
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T05:03:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdb91fc90d032e868c7b2ad8367a49bc5f1aca9188b69add10c2c4a6f79057398
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8000103
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb91fc90d032e868c7b2ad8367a49bc5f1aca9188b69add10c2c4a6f79057398. 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/GBAYC8000103.
  date published: 2026-07-08T03:20:19Z
audio: Verdi: La traviata, Act 2: "Di Provenza il mar, il suol" (Germont)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.032
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.19
  additional property: Energy
    type: PropertyValue
    value: 0.034
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.006
  additional property: Liveness
    type: PropertyValue
    value: 0.071
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.061
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.758
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Rigoletto
type: MusicAlbum
date published: 2015-01-01
track: Rigoletto: Act I: Della mia bella incognita borghese (Duke)
  type: MusicRecording
  duration: PT1M38S
  duration ms: 98480
  explicit: false
  by artist: Giuseppe Verdi
  by artist: Alfredo Kraus
  by artist: Piero de Palma
  by artist: Orchestra Del Teatro Dell'Opera Di Roma
  by artist: Sir Georg Solti
  in album: Verdi: Rigoletto
    type: MusicAlbum
    date published: 2015-01-01
  popularity: 2
  genre: classical
  genre: opera
  isrc code: ITCC51101694
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T16:29:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x291ac1829b17c5ee89b92e18941c50224926dda222b00142ee30fb55d9705657
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101694
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291ac1829b17c5ee89b92e18941c50224926dda222b00142ee30fb55d9705657. 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/ITCC51101694.
    date published: 2026-07-08T03:20:19Z
  audio: Rigoletto: Act I: Della mia bella incognita borghese (Duke)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.776
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.446
    additional property: Energy
      type: PropertyValue
      value: 0.106
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.988
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.055
    additional property: Liveness
      type: PropertyValue
      value: 0.29
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.844
    additional property: Loudness (dB)
      type: PropertyValue
      value: -30.784
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Rigoletto: Act I: Partite? Crudele! (Duca)
  type: MusicRecording
  duration: PT2M7S
  duration ms: 127960
  explicit: false
  by artist: Giuseppe Verdi
  by artist: Corinna Vozza
  by artist: Piero de Palma
  by artist: Alfredo Kraus
  by artist: Robert Merrill
  by artist: Coro Del Teatro Dell'Opera Di Roma
  by artist: Orchestra Del Teatro Dell'Opera Di Roma
  by artist: Sir Georg Solti
  in album: Verdi: Rigoletto
    type: MusicAlbum
    date published: 2015-01-01
  popularity: 2
  genre: classical
  genre: opera
  isrc code: ITCC51101696
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T19:32:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3a1ab3d85d68a357dccf9b58edc8a705cb6ddf0b4d1b97160d95accfb483fb52
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101696
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1ab3d85d68a357dccf9b58edc8a705cb6ddf0b4d1b97160d95accfb483fb52. 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/ITCC51101696.
    date published: 2026-07-08T03:22:41Z
  audio: Rigoletto: Act I: Partite? Crudele! (Duca)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 108.668
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.337
    additional property: Energy
      type: PropertyValue
      value: 0.096
    additional property: Speechiness
      type: PropertyValue
      value: 0.085
    additional property: Acousticness
      type: PropertyValue
      value: 0.968
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.427
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.323
    additional property: Loudness (dB)
      type: PropertyValue
      value: -27.04
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Rigoletto: Act II: Si, vendetta, tremenda vendetta (Rigoletto)
  type: MusicRecording
  duration: PT2M10S
  duration ms: 130626
  explicit: false
  by artist: Giuseppe Verdi
  by artist: Anna Moffo
  by artist: Robert Merrill
  by artist: Orchestra Del Teatro Dell'Opera Di Roma
  by artist: Sir Georg Solti
  in album: Verdi: Rigoletto
    type: MusicAlbum
    date published: 2015-01-01
  popularity: 2
  genre: classical
  genre: opera
  isrc code: ITCC51101716
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Rigoletto: Act II: Si, vendetta, tremenda vendetta (Rigoletto)
track: Rigoletto: Act I: Figlia! … Mio padre! (Rigoletto, Gilda)
track: Rigoletto: Act II: Ella mi fu rapita! … Parmi veder (Duke)
track: Rigoletto: Act II: Duca, Duca! (Tutti)
track: Rigoletto: Act II : Possente amor mi chiama (Duke)
track: Rigoletto: Act II: Cortigiani, vil razza dannata (Rigoletto)

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T08:09:43+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x3fc0f7157a6b4c26e7ed2a7bb4a78f478eefeca7cfaea6ca064ae3c670d46f11

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957118

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

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101716

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

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc0f7157a6b4c26e7ed2a7bb4a78f478eefeca7cfaea6ca064ae3c670d46f11. 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/ITCC51101716.
date published: 2026-07-08T03:20:19Z

Rigoletto: Act II: Si, vendetta, tremenda vendetta (Rigoletto)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 165.949
additional property: Musical Key
  type: PropertyValue
  value: 1
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.23
additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Rigoletto: Act I: Figlia! … Mio padre! (Rigoletto, Gilda)
type: MusicRecording
duration: PT6M12S
duration ms: 372493
explicit: false
by artist: Giuseppe Verdi
by artist: Robert Merrill
by artist: Anna Moffo
by artist: Anna Di Stasio
by artist: Orchestra Del Teatro Dell'Opera Di Roma
by artist: Sir Georg Solti
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2015-01-01
popularity: 3
genre: classical
genre: opera
isrc code: ITCC51101701
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101701
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9437fee51d3000f248dd81e1db2e16afef3abb6f0a0da129851dbdb4c5f7e4. 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/ITCC51101701.
  date published: 2026-07-08T03:22:41Z
audio: Rigoletto: Act I: Figlia! … Mio padre! (Rigoletto, Gilda)
  type: AudioObject
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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
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Rigoletto: Act II: Ella mi fu rapita! … Parmi veder (Duke)
type: MusicRecording
duration: PT5M3S
duration ms: 303186
explicit: false
by artist: Giuseppe Verdi
by artist: Alfredo Kraus
by artist: Orchestra Del Teatro Dell'Opera Di Roma
by artist: Sir Georg Solti
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2015-01-01
popularity: 1
genre: classical
genre: opera
isrc code: ITCC51101708
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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  value: 2026-07-07T19:20:51+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/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101708
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4caf7007de909e1425f4f22221fbfb217f4ff188b535d75b2206d5081e1380. 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/ITCC51101708.
  date published: 2026-07-08T03:53:27Z
audio: Rigoletto: Act II: Ella mi fu rapita! … Parmi veder (Duke)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Rigoletto: Act II: Duca, Duca! (Tutti)
type: MusicRecording
duration: PT2M37S
duration ms: 157600
explicit: false
by artist: Giuseppe Verdi
by artist: Alfredo Kraus
by artist: Robert Kerns
by artist: Piero de Palma
by artist: Mario Rinaudo
by artist: Coro Del Teatro Dell'Opera Di Roma
by artist: Orchestra Del Teatro Dell'Opera Di Roma
by artist: Sir Georg Solti
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2015-01-01
popularity: 2
genre: classical
genre: opera
isrc code: ITCC51101709
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:59:10+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x9e2793af9a2511f0696f1b3a6dd94fa5f2690bc6de399c0c72275a7265c0bc9f
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101709
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2793af9a2511f0696f1b3a6dd94fa5f2690bc6de399c0c72275a7265c0bc9f. 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/ITCC51101709.
  date published: 2026-07-08T03:53:27Z
audio: Rigoletto: Act II: Duca, Duca! (Tutti)
  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
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Rigoletto: Act II : Possente amor mi chiama (Duke)
type: MusicRecording
duration: PT3M0S
duration ms: 180280
explicit: false
by artist: Giuseppe Verdi
by artist: Alfredo Kraus
by artist: Coro Del Teatro Dell'Opera Di Roma
by artist: Orchestra Del Teatro Dell'Opera Di Roma
by artist: Sir Georg Solti
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2015-01-01
popularity: 2
genre: classical
genre: opera
isrc code: ITCC51101710
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:22:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb123d3bfacf3536bc8c1c125f35dcadde668a59c0ad1525fb29ef8761b0440. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101710.
  date published: 2026-07-08T08:56:20Z
audio: Rigoletto: Act II : Possente amor mi chiama (Duke)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.327
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Rigoletto: Act II: Cortigiani, vil razza dannata (Rigoletto)
type: MusicRecording
duration: PT4M14S
duration ms: 254573
explicit: false
by artist: Giuseppe Verdi
by artist: Robert Merrill
by artist: Orchestra Del Teatro Dell'Opera Di Roma
by artist: Sir Georg Solti
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2015-01-01
popularity: 2
genre: classical
genre: opera
isrc code: ITCC51101712
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:58:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x912d6908bef5e7cfd8f35759d9751fd4fdaed3f023bc66a6e7f535c289206b9f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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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/ITCC51101712
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912d6908bef5e7cfd8f35759d9751fd4fdaed3f023bc66a6e7f535c289206b9f. 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/ITCC51101712.
  date published: 2026-07-08T03:22:41Z
audio: Rigoletto: Act II: Cortigiani, vil razza dannata (Rigoletto)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.286
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.054
  additional property: Liveness
    type: PropertyValue
    value: 0.293
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.127
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.781
  additional property: Key Name
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  additional property: Mode Name
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Verdi: Rigoletto (Recorded Live 1961)
type: MusicAlbum
date published: 2015-01-01

Bizet: Les pêcheurs de perles (Sung in Italian) [Recorded 1960] [Live]
type: MusicAlbum
date published: 2014-09-01

The Incomparable Alfredo Kraus
type: MusicAlbum
date published: 1995-03-17

Canciones Italianas y Españolas
type: MusicAlbum
date published: 2011-05-15
track: Oh Mari, oh Mari - Remastered
  type: MusicRecording
  duration: PT4M2S
  duration ms: 242146
  explicit: false
  by artist: José Olmedo
  by artist: Alfredo Kraus
  by artist: Enrique Estela
  by artist: Orquesta De Camara De Madrid
  in album: Canciones Italianas y Españolas
    type: MusicAlbum
    date published: 2011-05-15
  popularity: 3
  isrc code: ES5271003802
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5271003802
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205b6908e63daff5ef1c338c2bb2d8f6bba7f46ba0c6c827143475bd8bab73cd. 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/ES5271003802.
    date published: 2026-07-08T03:22:41Z
  audio: Oh Mari, oh Mari - Remastered
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 165.681
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.165
    additional property: Energy
      type: PropertyValue
      value: 0.324
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.985
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.019
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.284
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.131
    additional property: Key Name
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    additional property: Mode Name
      type: PropertyValue
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track: Amapola
  type: MusicRecording
  duration: PT3M34S
  duration ms: 214373
  explicit: false
  by artist: Jose Maria Lacalle
  by artist: Alfredo Kraus
  by artist: Jose Luis Lloret
  by artist: Orquesta De Camara De Madrid
  in album: Canciones Italianas y Españolas
    type: MusicAlbum
    date published: 2011-05-15
  popularity: 3
  isrc code: ES5271003818
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5271003818
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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track: Serenata
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track: Alma de Dios
track: Doña Francisquita
track: O sole mío

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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:53:27Z

La canción de amore
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Alma de Dios
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T13:52:39Z
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Doña Francisquita
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subject of: OpenTimestamps Proof of Existence
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audio: Doña Francisquita
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Così fan tutte, K. 588, Act I: Un'aura amorosa (Ferrando)
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  date published: 2026-06-13T17:25:41Z
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La traviata, Act I: Libiamo ne' lieti calici (Alfredo, Violetta)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: La traviata, Act I: Libiamo ne' lieti calici (Alfredo, Violetta)
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La traviata / Act 1: "Follie! Delirio vano è questo!" - "Sempre libera"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: La traviata / Act 1: "Follie! Delirio vano è questo!" - "Sempre libera"
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La Bohème, Act I: O soave fanciulla (Rodolfo, Marcello, Mimì)
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subject of: OpenTimestamps Proof of Existence
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audio: La Bohème, Act I: O soave fanciulla (Rodolfo, Marcello, Mimì)
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La bohème, SC 67, Act I: O soave fanciulla (Rodolfo, Marcello, Mimì)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Verdi: La traviata, Act 3: "Parigi, o cara, noi lasceremo" (Violetta, Alfredo)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-21T21:16:44Z
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Rigoletto, Act III: La donna è mobile
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Rigoletto, Act III: La donna è mobile
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La traviata, Act I: Un di, felice, eterea
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T16:51:38Z
audio: La traviata, Act I: Un di, felice, eterea
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La traviata / Act 1: "Follie! Delirio vano è questo!" - "Sempre libera"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: La traviata / Act 1: "Follie! Delirio vano è questo!" - "Sempre libera"
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Rigoletto, Act III: La donna è mobile
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  date published: 2026-07-22T00:55:05Z
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