Tim Ovens
type: MusicGroup
genre: avant-garde
genre: experimental
genre: krautrock
genre: minimalism
popularity: 7
followers: 114
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subject of: OpenTimestamps Proof of Existence
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album: Birds Singing in Lonesome Mountains
  type: MusicAlbum
  date published: 2000
track: Water Music (1952)

Water Music (1952)
type: MusicRecording
duration: PT6M48S
duration ms: 408986
explicit: false
by artist: John Cage
by artist: Tim Ovens
in album: John Cage - Piano Music
  type: MusicAlbum
  date published: 2015-03-12
genre: classical
genre: experimental
genre: american-contemporary-classical
genre: contemporary-classical
genre: avant-garde
genre: compositional-ambient
isrc code: CH6540884585
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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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  date published: 2026-07-07T14:41:13Z
audio: Water Music (1952)
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