John Nathan-Turner
type: MusicGroup
description: John Turner (12 August 1947 – 1 May 2002), known professionally as John Nathan-Turner, was a British television producer. He was the ninth producer of the long-running BBC science fiction series Docto
popularity: 5
followers: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0e40eca85c2628b048cb8d73c048b44eb79519b17af75bf01fbc66870594ba4e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954062
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954062
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/465663c0-5b13-4ffd-ad1e-b92b558576a8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/465663c0-5b13-4ffd-ad1e-b92b558576a8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/465663c0-5b13-4ffd-ad1e-b92b558576a8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:39:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0e40eca85c2628b048cb8d73c048b44eb79519b17af75bf01fbc66870594ba4e","name":"John Nathan-Turner","registered_at":"2026-06-16T14:05:21Z","symbol":"NIM1075180","token_address":"0x5045d79c56ebabcb214d0579741b958fef3b6231","type":"artist","uuid":"465663c0-5b13-4ffd-ad1e-b92b558576a8"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e40eca85c2628b048cb8d73c048b44eb79519b17af75bf01fbc66870594ba4e. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/465663c0-5b13-4ffd-ad1e-b92b558576a8.json and https://artists.proofprofile.net/proofs/artist/465663c0-5b13-4ffd-ad1e-b92b558576a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x0e40eca85c2628b048cb8d73c048b44eb79519b17af75bf01fbc66870594ba4e","name":"John Nathan-Turner","registered_at":"2026-06-16T14:05:21Z","symbol":"NIM1075180","token_address":"0x5045d79c56ebabcb214d0579741b958fef3b6231","type":"artist","uuid":"465663c0-5b13-4ffd-ad1e-b92b558576a8"}
album: John Nathan-Turner Memoirs Volume 1-2 (Unabridged)
  type: MusicAlbum
  date published: 2000-11-01