Chiara String Quartet
type: MusicGroup
genre: chamber music
description: thumb|alt=The Chiara Quartet|The Chiara Quartet performs at New York's Caffe Vivaldi, June 28, 2007 The Chiara String Quartet was an internationally performing professional string quartet based in Li
popularity: 3
followers: 462
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additional property: OTSVerifyInstructions
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-20T17:48:00Z
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album: Leyendas: An Andean Walkabout - Gabriela Lena Frank
  type: MusicAlbum
  date published: 2007-01-01