London Musical Arts
type: MusicGroup
genre: opera
popularity: 2
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-16T20:07:57Z
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track: Rinaldo, HWV 7, Act II: "Lascia ch'io pianga"

Rinaldo, HWV 7, Act II: "Lascia ch'io pianga"
type: MusicRecording
duration: PT4M35S
duration ms: 275888
explicit: false
by artist: George Frideric Handel
by artist: London Musical Arts
by artist: Heather Johnson
by artist: John Landor
in album: Classical Music for Creativity
  type: MusicAlbum
  date published: 2019-04-12
popularity: 2
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: USX760500093
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Rinaldo, HWV 7, Act II: "Lascia ch'io pianga"
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  additional property: Key Name
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    value: F
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