Petty Booka
type: MusicGroup
genre: cha cha cha
genre: shibuya-kei
description: Petty Booka is a Japanese musical group that consists of two women, Petty and Booka, who sing and play ukulele. Most of the band's early output consisted of cover versions of Hawaiian ukulele classic
popularity: 11
followers: 851
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-15T04:44:49Z
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album: Let's Talk Dirty In Hawaiian
  type: MusicAlbum
  date published: 2003
album: Christmas Everywhere
  type: MusicAlbum
  date published: 2003
album: Singin' in the Rain
  type: MusicAlbum
  date published: 2003-01-01
album: Dancing With Petty Booka, Go!Go!Go! And Go!
  type: MusicAlbum
  date published: 2006-01-01
track: How Can I Be So Thirsty Today?
  type: MusicRecording
  duration: PT2M16S
  duration ms: 136800
  explicit: false
  by artist: Petty Booka
  by artist: The Meat Purveyors
  in album: For A Decade of Sin
    type: MusicAlbum
    date published: 2005-10-25
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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
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    date published: 2026-07-30T18:46:00Z
  audio: How Can I Be So Thirsty Today?
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
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    additional property: Musical Key
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      value: 9
    additional property: Mode (Major/Minor)
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      value: 1
    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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      value: 0.106
    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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      value: 0.311
    additional property: Valence (Positivity)
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      value: 0.855
    additional property: Loudness (dB)
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    additional property: Key Name
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      value: A
    additional property: Mode Name
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