Larum
type: MusicGroup
genre: ambient
description: A larum is an alarm signal "to arms!" from Old Italian all'arme A Larum for London or The Siege of Antwerp, play 1602 A Larum (album) See also Mater Larum Mother of the Lares
popularity: 2
followers: 168
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-21T15:47:51Z
album: Into a Bright Land
  type: MusicAlbum
  date published: 2019-03-21
album: Into a Bright Land
  type: MusicAlbum
  date published: 2019-03-21
album: The Music of Hildegard von Bingen Part One
  type: MusicAlbum
  date published: 2022-11-18
album: The Music of Hildegard von Bingen (Live at Public Records)
  type: MusicAlbum
  date published: 2024-01-12
album: The Music of Hildegard von Bingen, Pt. 2
  type: MusicAlbum
  date published: 2025-03-05
album: O Chroruscans
  type: MusicAlbum
  date published: 2025-04-03
album: The Music of Hildegard von Bingen, Pt. II
  type: MusicAlbum
  date published: 2025-04-11
album: The Music of Hildegard von Bingen, Part Two
  type: MusicAlbum
  date published: 2025-04-11
  track: O Virga Mediatrix
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    duration: PT5M7S
    duration ms: 307166
    explicit: false
    by artist: Larum
    in album: The Music of Hildegard von Bingen, Part Two
      type: MusicAlbum
      date published: 2025-04-11
    genre: ambient
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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
    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-18T16:22:28Z
    audio: O Virga Mediatrix
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Danceability
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      additional property: Acousticness
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      additional property: Instrumentalness
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      additional property: Loudness (dB)
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        value: -14.011
      additional property: Key Name
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        value: E
      additional property: Mode Name
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        value: Minor
album: Treatise by Cornelius Cardew (Live)
  type: MusicAlbum
  date published: 2025-09-19