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: 2
followers: 35
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x61ae74ec978c4a07e2ea62815e24a0e3665d878717281b9ed880398f0344690b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/98b9a83e-cf4c-4072-9efa-041074fa5759.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/98b9a83e-cf4c-4072-9efa-041074fa5759.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/98b9a83e-cf4c-4072-9efa-041074fa5759
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x61ae74ec978c4a07e2ea62815e24a0e3665d878717281b9ed880398f0344690b","name":"Chris Barker","registered_at":"2026-06-17T19:12:59Z","symbol":"NIM1492055","token_address":"0x3b0c32403033fef81cc3b5196a2b3e511b6ea3a0","type":"artist","uuid":"98b9a83e-cf4c-4072-9efa-041074fa5759"}
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 0x61ae74ec978c4a07e2ea62815e24a0e3665d878717281b9ed880398f0344690b. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/98b9a83e-cf4c-4072-9efa-041074fa5759.json and https://artists.proofprofile.net/proofs/artist/98b9a83e-cf4c-4072-9efa-041074fa5759.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x61ae74ec978c4a07e2ea62815e24a0e3665d878717281b9ed880398f0344690b","name":"Chris Barker","registered_at":"2026-06-17T19:12:59Z","symbol":"NIM1492055","token_address":"0x3b0c32403033fef81cc3b5196a2b3e511b6ea3a0","type":"artist","uuid":"98b9a83e-cf4c-4072-9efa-041074fa5759"}
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