Jimmy Keen
type: MusicGroup
description: James Frederick Keen (25 December 1895 – 1980) was an English footballer who played in the Football League for Bristol City, Hull City, Newcastle United, Queens Park Rangers and Wigan Borough. Refere
popularity: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x77d4ded0536c9b35fdd232c40473df11999cf060fac83a2f1a0bef7ebb81cdd5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/605a3fa8-b958-43e9-b467-82f9734427e7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/605a3fa8-b958-43e9-b467-82f9734427e7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/605a3fa8-b958-43e9-b467-82f9734427e7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x77d4ded0536c9b35fdd232c40473df11999cf060fac83a2f1a0bef7ebb81cdd5","name":"Jimmy Keen","registered_at":"2026-06-16T23:05:58Z","symbol":"NIM1204170","token_address":"0xbfd9cd8708db27be2417ef0ad0b1ce7145e167eb","type":"artist","uuid":"605a3fa8-b958-43e9-b467-82f9734427e7"}
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 0x77d4ded0536c9b35fdd232c40473df11999cf060fac83a2f1a0bef7ebb81cdd5. 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/605a3fa8-b958-43e9-b467-82f9734427e7.json and https://artists.proofprofile.net/proofs/artist/605a3fa8-b958-43e9-b467-82f9734427e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x77d4ded0536c9b35fdd232c40473df11999cf060fac83a2f1a0bef7ebb81cdd5","name":"Jimmy Keen","registered_at":"2026-06-16T23:05:58Z","symbol":"NIM1204170","token_address":"0xbfd9cd8708db27be2417ef0ad0b1ce7145e167eb","type":"artist","uuid":"605a3fa8-b958-43e9-b467-82f9734427e7"}