Derek Varnals
type: MusicGroup
description: George Derek Varnals (24 July 1935 – 9 September 2019) was a South African cricketer who played in three Test matches in the 1964–65 season. The South African cricket commentator Charles Fortune desc
popularity: 11
followers: 723
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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: 2026-06-15T22:22:30Z
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track: Randolph's Tango
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  by artist: Thin Lizzy
  by artist: Derek Varnals
  in album: Vagabonds Of The Western World (Deluxe Edition)
    type: MusicAlbum
    date published: 2023-11-17
  popularity: 7
  genre: hard-rock
  genre: classic-rock
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T07:16:32Z
  audio: Randolph's Tango
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    additional property: Key Name
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track: Randolph's Tango
  type: MusicRecording
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  by artist: Thin Lizzy
  by artist: Derek Varnals
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    type: MusicAlbum
    date published: 1973-09-21
  genre: hard-rock
  genre: classic-rock
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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: 2026-07-02T03:30:09Z
  audio: Randolph's Tango
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    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
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Valence (Positivity)
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Loudness (dB)
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Key Name
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Mode Name
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