Heintje Davids
type: MusicGroup
genre: nederpop
description: Heintje Davids (13 February 1888 – 14 February 1975), born Hendrika David, was a prominent Dutch variety artist, known for her career as a singer and comedian from 1907 until her death. Performing und
popularity: 8
followers: 249
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  date published: 2026-06-16T22:46:20Z
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track: Weet Je Nog Wel Oudje
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  by artist: Sylvain Poons
  by artist: Heintje Davids
  in album: De Mooiste Smartlappen Aller Tijden
    type: MusicAlbum
    date published: 2013-04-29
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:39:04Z
  audio: Weet Je Nog Wel Oudje
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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      value: G
    additional property: Mode Name
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track: Weet Je Nog Wel Oudje
  type: MusicRecording
  duration: PT3M54S
  duration ms: 234280
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  by artist: Sylvain Poons
  by artist: Heintje Davids
  in album: Hollandse Hits Top 100
    type: MusicAlbum
    date published: 2013-04-05
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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
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:30:09Z
  audio: Weet Je Nog Wel Oudje
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Speechiness
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    additional property: Instrumentalness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
    additional property: Key Name
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Loudness (dB)
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Key Name
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Mode Name
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