Lawrence Turner
type: MusicGroup
description: Henry Frederic Lawrence Turner (30 December 1908 – 17 December 1977) was a British Conservative Party politician. As an officer in the Royal Artillery during the Second World War, he survived three ye
popularity: 4
followers: 109
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1bfd22501f249ae90f7792445af1cf43a442508421e36877fe0ced8b17d8bc57
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fd2fd349-454f-4244-a8d5-800b2af91e21.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fd2fd349-454f-4244-a8d5-800b2af91e21.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fd2fd349-454f-4244-a8d5-800b2af91e21
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1bfd22501f249ae90f7792445af1cf43a442508421e36877fe0ced8b17d8bc57","name":"Lawrence Turner","registered_at":"2026-06-21T18:09:51Z","symbol":"NIM1997694","token_address":"0xb4ec50670b8e91da86d773aa3d8f227469b6b0b5","type":"artist","uuid":"fd2fd349-454f-4244-a8d5-800b2af91e21"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfd22501f249ae90f7792445af1cf43a442508421e36877fe0ced8b17d8bc57. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd2fd349-454f-4244-a8d5-800b2af91e21.json and https://artists.proofprofile.net/proofs/artist/fd2fd349-454f-4244-a8d5-800b2af91e21.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x1bfd22501f249ae90f7792445af1cf43a442508421e36877fe0ced8b17d8bc57","name":"Lawrence Turner","registered_at":"2026-06-21T18:09:51Z","symbol":"NIM1997694","token_address":"0xb4ec50670b8e91da86d773aa3d8f227469b6b0b5","type":"artist","uuid":"fd2fd349-454f-4244-a8d5-800b2af91e21"}
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