Grant Doyle
type: MusicGroup
genre: opera
description: Grant Doyle may refer to: Grant Doyle (baritone), Australian/British operatic baritone Grant Doyle (tennis) (born 1974), Australian former tennis player and coach
popularity: 2
followers: 16
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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 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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album: Enchanted Places
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    by artist: John Kember
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      date published: 2023-09-01
    popularity: 3
    genre: operetta
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-08-01T02:22:04Z
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  track: The Hums of Pooh: If Rabbit Was Bigger
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-30T22:27:30Z
    audio: The Hums of Pooh: If Rabbit Was Bigger
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album: Gluck: Iphigénie en Tauride, Wq. 46 (Live)
album: Verdi: Don Carlos

Liveness
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Valence (Positivity)
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Gluck: Iphigénie en Tauride, Wq. 46 (Live)
type: MusicAlbum
date published: 2017-01-06
track: Iphigénie en Tauride, Wq. 46, Act I: Introduction and Air: Grands dieux! soyez-nous secourables!
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  by artist: Caitlin Hulcup
  by artist: Cantillation
  by artist: Orchestra of the Antipodes
  by artist: Antony Walker
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    date published: 2017-01-06
  genre: classical
  genre: opera
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-30T20:11:13Z
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track: Iphigénie en Tauride, Wq. 46, Act I: Act I Scene 1: Quand verrons-nous tarir nos pleurs?
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T12:24:41Z
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Gluck: Iphigénie en Tauride, Wq. 46 (Live)
type: MusicAlbum
date published: 2017-01-06

Verdi: Don Carlos
type: MusicAlbum
date published: 2009-11-01