Opera Queensland Chorus
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genre: opera
popularity: 12
followers: 228
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subject of: OpenTimestamps Proof of Existence
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album: Opera's Greatest Choruses
  type: MusicAlbum
  date published: 2009-10-10
album: Opera's Greatest Choruses
  type: MusicAlbum
  date published: 2009-10-10
album: Opera's Greatest Choruses
  type: MusicAlbum
  date published: 2009-10-10
track: Nabucco, Act III: "Va', pensiero" (Chorus Of The Hebrew Slaves)
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  by artist: Opera Queensland Chorus
  by artist: Johannes Fritzsch
  by artist: Queensland Symphony Orchestra
  in album: The Dam Busters - Rousing Songs, Anthems and Marches
    type: MusicAlbum
    date published: 2014-08-15
  popularity: 18
  genre: classical
  genre: opera
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T13:32:09Z
  audio: Nabucco, Act III: "Va', pensiero" (Chorus Of The Hebrew Slaves)
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track: Nabucco, Act 3: "Va', pensiero" (Chorus of the Hebrew Slaves)
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  by artist: Giuseppe Verdi
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  by artist: Opera Queensland Chorus
  by artist: Johannes Fritzsch
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  in album: Classical Music to Lift Your Spirits
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    date published: 2020-11-06
  popularity: 1
  genre: classical
  genre: opera
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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track: Madama Butterfly, Act 2: Humming Chorus

Madama Butterfly, Act 2: Humming Chorus
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by artist: Giacomo Puccini
by artist: Opera Queensland Chorus
by artist: Johannes Fritzsch
by artist: Queensland Symphony Orchestra
in album: Swoon: The Ultimate Collection – Selected Highlights
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  date published: 2014-10-10
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Madama Butterfly, Act 2: Humming Chorus
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Liveness
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Loudness (dB)
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Key Name
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Mode Name
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