David Annandale
type: MusicGroup
description: David Annandale (born 1967) is a Canadian speculative fiction author. He received a BA (1990) and an MA (1992) from the University of Manitoba, and took a PhD from the University of Alberta; he curren
popularity: 35
followers: 371
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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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  date published: 2026-06-12T19:24:56Z
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album: Vulkan - Der Drachenfürst [The Horus Heresy: Primarchs 9 (Ungekürzt)]
  type: MusicAlbum
  date published: 2018
album: Warhammer 40.000: Das Vermächtnis der Wulfen (Ungekürzt)
  type: MusicAlbum
  date published: 2018
album: Roboute Guilliman - Der letzte Schlachtenkönig [The Horus Heresy: Primarchs 1 (Ungekürzt)]
  type: MusicAlbum
  date published: 2022-07-30
album: Die Verdammnis von Pythos [The Horus Heresy 30 (Ungekürzt)]
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  date published: 2023-10-14
  track: Kapitel 1 - Die Verdammnis von Pythos - The Horus Heresy 30
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    in album: Die Verdammnis von Pythos [The Horus Heresy 30 (Ungekürzt)]
      type: MusicAlbum
      date published: 2023-10-14
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    additional property: OTSTimestamp
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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 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: 2026-07-20T00:01:46Z
    audio: Kapitel 1 - Die Verdammnis von Pythos - The Horus Heresy 30
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