Liz Mandeville
type: MusicGroup
genre: blues
description: Liz Mandeville is an American vocalist, songwriter, and Chicago blues musician known for her versatile voice, high-voltage performances, insightful songs, and traditional blues guitar playing. She has
popularity: 5
followers: 2016
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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: 2026-06-21T11:50:32Z
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album: Clarksdale
  type: MusicAlbum
  date published: 2012-05-14
album: Heart 'o' Chicago
  type: MusicAlbum
  date published: 2014-08-31
  track: Quit Me On a Voice Mail (feat. Eddie Shaw)
    type: MusicRecording
    duration: PT4M44S
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    by artist: Liz Mandeville
    in album: Heart 'o' Chicago
      type: MusicAlbum
      date published: 2014-08-31
    genre: blues
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-04T11:19:20Z
    audio: Quit Me On a Voice Mail (feat. Eddie Shaw)
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      additional property: Tempo (BPM)
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      additional property: Musical Key
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      additional property: Mode (Major/Minor)
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      additional property: Danceability
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      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Instrumentalness
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      additional property: Liveness
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        value: 0.114
      additional property: Valence (Positivity)
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        value: 0.476
      additional property: Loudness (dB)
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        value: -6.798
      additional property: Key Name
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        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: What Does Christmas Mean to You
  type: MusicAlbum
  date published: 2014-11-17
album: Watch Out for Santa! (feat. Rockin' Johnny Burgin, Peter Struijk, Jim Godsey & Martin Lang)
  type: MusicAlbum
  date published: 2014-11-17
album: The Stars Motel
  type: MusicAlbum
  date published: 2016-09-01
album: Playing with Fire
  type: MusicAlbum
  date published: 2020-03-07
album: Christmas Boogie
  type: MusicAlbum
  date published: 2021-12-02