Chris Barker
type: MusicGroup
description: Christopher Andrew Barker (2 March 1980 – 1 January 2020) was an English professional footballer who played as a defender. He represented Alfreton Town, Barnsley, Cardiff City, Stoke City, Colchester
popularity: 4
followers: 51
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb0166614ad2ef612af019218518111d51cf8a21af38ccea063efe10089af7174
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04361092-e984-42ac-8a19-d552d4d1354a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04361092-e984-42ac-8a19-d552d4d1354a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/04361092-e984-42ac-8a19-d552d4d1354a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb0166614ad2ef612af019218518111d51cf8a21af38ccea063efe10089af7174","name":"Chris Barker","registered_at":"2026-06-15T14:59:45Z","symbol":"NIM0744467","token_address":"0x3eb7c25c9b788b52edeedb555d21529defe870e7","type":"artist","uuid":"04361092-e984-42ac-8a19-d552d4d1354a"}
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 0xb0166614ad2ef612af019218518111d51cf8a21af38ccea063efe10089af7174. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04361092-e984-42ac-8a19-d552d4d1354a.json and https://artists.proofprofile.net/proofs/artist/04361092-e984-42ac-8a19-d552d4d1354a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xb0166614ad2ef612af019218518111d51cf8a21af38ccea063efe10089af7174","name":"Chris Barker","registered_at":"2026-06-15T14:59:45Z","symbol":"NIM0744467","token_address":"0x3eb7c25c9b788b52edeedb555d21529defe870e7","type":"artist","uuid":"04361092-e984-42ac-8a19-d552d4d1354a"}
album: The Homunculus Experiment
  type: MusicAlbum
  date published: 2022-05-18