Puccini Festival Orchestra
type: MusicGroup
genre: opera
popularity: 16
followers: 85
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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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  date published: 2026-06-14T13:54:28Z
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track: La Rondine: Act I: Prelude
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  by artist: Giacomo Puccini
  by artist: Svetla Vassileva
  by artist: Maya Dashuk
  by artist: Fabio Sartori
  by artist: Emanuele Giannino
  by artist: Marzio Giossi
  by artist: Fernando Luis Ciuffo
  by artist: Giorgio Berrugi
  by artist: Andrea Patucelli
  by artist: Polina Volfson
  by artist: Alessandra Meozzi
  by artist: Annunziata Vestri
  by artist: Puccini Festival Chorus
  by artist: Puccini Festival Orchestra
  by artist: Alberto Veronesi
  in album: Puccini, G.: Rondine (La) [Opera]
    type: MusicAlbum
    date published: 2009-08-25
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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
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    date published: 2026-07-31T06:42:11Z
  audio: La Rondine: Act I: Prelude
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    additional property: Danceability
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    additional property: Key Name
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track: La Rondine: Act I: Chi il bel sogno di Doretta (Prunier, Magda)
  type: MusicRecording
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  by artist: Giacomo Puccini
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  by artist: Maya Dashuk
  by artist: Fabio Sartori
  by artist: Emanuele Giannino
  by artist: Marzio Giossi
  by artist: Fernando Luis Ciuffo
  by artist: Giorgio Berrugi
  by artist: Andrea Patucelli
  by artist: Polina Volfson
  by artist: Alessandra Meozzi
  by artist: Annunziata Vestri
  by artist: Puccini Festival Chorus
  by artist: Puccini Festival Orchestra
  by artist: Alberto Veronesi
  in album: Puccini, G.: Rondine (La) [Opera]
    type: MusicAlbum
    date published: 2009-08-25
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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
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    date published: 2026-06-13T13:32:09Z
  audio: La Rondine: Act I: Chi il bel sogno di Doretta (Prunier, Magda)
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track: La Rondine: Act I: …Forse come la rondine (Magda)

Time Signature
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Danceability
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Energy
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Speechiness
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Acousticness
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Instrumentalness
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Liveness
type: PropertyValue
value: 0.712

Valence (Positivity)
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value: 0.167

Loudness (dB)
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value: -19.864

Key Name
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value: F

Mode Name
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La Rondine: Act I: …Forse come la rondine (Magda)
type: MusicRecording
duration: PT1M7S
duration ms: 67986
explicit: false
by artist: Giacomo Puccini
by artist: Svetla Vassileva
by artist: Maya Dashuk
by artist: Fabio Sartori
by artist: Emanuele Giannino
by artist: Marzio Giossi
by artist: Fernando Luis Ciuffo
by artist: Giorgio Berrugi
by artist: Andrea Patucelli
by artist: Polina Volfson
by artist: Alessandra Meozzi
by artist: Annunziata Vestri
by artist: Puccini Festival Chorus
by artist: Puccini Festival Orchestra
by artist: Alberto Veronesi
in album: Puccini, G.: Rondine (La) [Opera]
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  date published: 2009-08-25
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56f1cdb7a4387877092e39d674cfce9b846396a44de67a8e4fed3f52c0cef9d. 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/HKI190871314.
  date published: 2026-06-13T12:53:06Z
audio: La Rondine: Act I: …Forse come la rondine (Magda)
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