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type: MusicGroup
genre: opera
popularity: 4
followers: 32
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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track: "L'ho perduta... me meschina!" (Figaro / Act 4) - Live
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  duration ms: 111173
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  by artist: Wolfgang Amadeus Mozart
  by artist: Eva Liebau
  by artist: Wiener Philharmoniker
  by artist: Nikolaus Harnoncourt
  in album: Figaro - Highlights
    type: MusicAlbum
    date published: 2007-01-01
  popularity: 8
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: DEUM70704357
  additional property: CopyrightID
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6299944e25515dc018432afa966ede2fe397510ba8eeec4e2efc3a1021e52b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM70704357.
    date published: 2026-07-02T03:55:08Z
  audio: "L'ho perduta... me meschina!" (Figaro / Act 4) - Live
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    additional property: Danceability
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    additional property: Speechiness
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track: "Gente, gente, all'armi" (Figaro / Act 4) - Live
  type: MusicRecording
  duration: PT5M35S
  duration ms: 335973
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Eva Liebau
  by artist: Marie McLaughlin
  by artist: Christine Schäfer
  by artist: Dorothea Röschmann
  by artist: Anna Netrebko
  by artist: Patrick Henckens
  by artist: Bo Skovhus
  by artist: Ildebrando D'Arcangelo
  by artist: Florian Boesch
  by artist: Wiener Philharmoniker
  by artist: Nikolaus Harnoncourt
  in album: Figaro - Highlights
    type: MusicAlbum
    date published: 2007-01-01
  popularity: 2
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: DEUM70704355
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a928ce078b10c22967b075a1c8975480c51bfebad0d4356c529e1874dc4cb1c. 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/DEUM70704355.
    date published: 2026-07-08T03:20:19Z
  audio: "Gente, gente, all'armi" (Figaro / Act 4) - Live
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    additional property: Tempo (BPM)
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    additional property: Musical Key
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track: Le nozze di Figaro, K. 492, Act III: Recit. Eccovi, o caro amico - Live
track: Le nozze di Figaro, K. 492, Act IV: No. 29, Finale: e. Gente, gente, all'armi - Live

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Acousticness
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Instrumentalness
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value: 0.016

Liveness
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Valence (Positivity)
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value: 0.095

Loudness (dB)
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Key Name
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Mode Name
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Le nozze di Figaro, K. 492, Act III: Recit. Eccovi, o caro amico - Live
type: MusicRecording
duration: PT1M20S
duration ms: 80013
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marie McLaughlin
by artist: Anna Netrebko
by artist: Eva Liebau
by artist: Christine Schäfer
by artist: Franz-Josef Selig
by artist: Ildebrando D'Arcangelo
by artist: Wiener Philharmoniker
by artist: Nikolaus Harnoncourt
in album: Mozart: Le Nozze di Figaro, K. 492 (Live at House Of Mozart, Salzburg Festival, 2006)
  type: MusicAlbum
  date published: 2007-01-01
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEN960631244
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-07-31T20:22:46Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412b54dcc61f4897feef43c667645a29bb8c82ed52ebf09a0b6be212c4e1852d. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/DEN960631244.
  date published: 2026-07-31T20:22:46Z
audio: Le nozze di Figaro, K. 492, Act III: Recit. Eccovi, o caro amico - Live
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Le nozze di Figaro, K. 492, Act IV: No. 29, Finale: e. Gente, gente, all'armi - Live
type: MusicRecording
duration: PT5M35S
duration ms: 335973
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Eva Liebau
by artist: Christine Schäfer
by artist: Marie McLaughlin
by artist: Anna Netrebko
by artist: Dorothea Röschmann
by artist: Patrick Henckens
by artist: Bo Skovhus
by artist: Ildebrando D'Arcangelo
by artist: Florian Boesch
by artist: Wiener Philharmoniker
by artist: Nikolaus Harnoncourt
in album: Mozart: Le Nozze di Figaro - Highlights
  type: MusicAlbum
  date published: 2007-01-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEN960631262
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960631262
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5324d3b93694ecc385da7b9bedd1297344821ddd651a0bcccc64a1aa7a68febb. 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/DEN960631262.
  date published: 2026-07-08T03:22:41Z
audio: Le nozze di Figaro, K. 492, Act IV: No. 29, Finale: e. Gente, gente, all'armi - Live
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