Simon Guerrier
type: MusicGroup
description: Simon Guerrier (born June 1976) is a British science fiction author and dramatist, closely associated with the fictional universe of Doctor Who and its spinoffs. Although he has written three Doctor
popularity: 13
followers: 69
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ab8ea875f702dc54cbd62378f3b47f56962aa935aafd00817dd3b6016e91f79
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953592
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953592
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/047770b4-2c80-47ca-9c62-0cd50b60318b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/047770b4-2c80-47ca-9c62-0cd50b60318b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/047770b4-2c80-47ca-9c62-0cd50b60318b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T05:36:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2ab8ea875f702dc54cbd62378f3b47f56962aa935aafd00817dd3b6016e91f79","name":"Simon Guerrier","registered_at":"2026-06-14T04:53:21Z","symbol":"NIM0344499","token_address":"0x8e03ac9132b811fa78878f1003435b4754ce3578","type":"artist","uuid":"047770b4-2c80-47ca-9c62-0cd50b60318b"}
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 0x2ab8ea875f702dc54cbd62378f3b47f56962aa935aafd00817dd3b6016e91f79. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/047770b4-2c80-47ca-9c62-0cd50b60318b.json and https://artists.proofprofile.net/proofs/artist/047770b4-2c80-47ca-9c62-0cd50b60318b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T05:36:59Z
  text: {"copyright_id":"0x2ab8ea875f702dc54cbd62378f3b47f56962aa935aafd00817dd3b6016e91f79","name":"Simon Guerrier","registered_at":"2026-06-14T04:53:21Z","symbol":"NIM0344499","token_address":"0x8e03ac9132b811fa78878f1003435b4754ce3578","type":"artist","uuid":"047770b4-2c80-47ca-9c62-0cd50b60318b"}