Orchestra del 2° Polo Lirico della Toscana
type: MusicGroup
genre: opera
popularity: 2
followers: 370
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-17T08:11:48Z
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album: Mascagni: Guglielmo Ratcliff
  type: MusicAlbum
  date published: 1995-01-01
  track: Guglielmo Ratcliff, Act III, Scene 3: Interludio

Guglielmo Ratcliff, Act III, Scene 3: Interludio
type: MusicRecording
duration: PT4M57S
duration ms: 297840
explicit: false
by artist: Pietro Mascagni
by artist: Orchestra del 2° Polo Lirico della Toscana
by artist: Massimo De Bernart
in album: Mascagni: Guglielmo Ratcliff
  type: MusicAlbum
  date published: 1995-01-01
popularity: 4
genre: opera
isrc code: ITE011802312
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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: 2026-07-07T16:07:00Z
audio: Guglielmo Ratcliff, Act III, Scene 3: Interludio
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