Mark Leckey
type: MusicGroup
genre: avant-garde
genre: experimental
description: Mark Leckey (born 1964) is a British contemporary artist. His found object art and video pieces, which incorporate themes of nostalgia and anxiety, and draw on elements of pop culture, span several wo
popularity: 5
followers: 779
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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: Exorcism of the Bridge@Eastham Rake
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  date published: 2018-11-16
album: O' Magic Power of Bleakness
  type: MusicAlbum
  date published: 2021-05-27
track: Cool Summer Wind
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  by artist: Europa
  by artist: Mark Leckey
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    date published: 2024-11-15
  genre: hypertrance
  genre: bubblegum-bass
  genre: deconstructed-club
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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
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    date published: 2026-07-02T03:30:09Z
  audio: Cool Summer Wind
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    additional property: Key Name
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