Koji Nishimura
type: MusicGroup
genre: bebop
description: is a former Japanese football player. Playing career Nishimura was released by Nagoya Grampus after nine-season with the club on 10 November 2016, going on to announce his retirement from the game o
popularity: 13
followers: 25
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x72dad263303ae1eaeb3cb9ff7034ab3eb29b91d91f6c98e0e6e1227a49258b0d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953674
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953674
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6040f71e-a28d-4c9b-8b2b-1035fd21d196.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6040f71e-a28d-4c9b-8b2b-1035fd21d196.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6040f71e-a28d-4c9b-8b2b-1035fd21d196
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:07:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x72dad263303ae1eaeb3cb9ff7034ab3eb29b91d91f6c98e0e6e1227a49258b0d","name":"Koji Nishimura","registered_at":"2026-06-14T14:31:55Z","symbol":"NIM0482486","token_address":"0x87158d0019c9f221cb8c6f532b4c12481c8e1b0b","type":"artist","uuid":"6040f71e-a28d-4c9b-8b2b-1035fd21d196"}
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 0x72dad263303ae1eaeb3cb9ff7034ab3eb29b91d91f6c98e0e6e1227a49258b0d. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6040f71e-a28d-4c9b-8b2b-1035fd21d196.json and https://artists.proofprofile.net/proofs/artist/6040f71e-a28d-4c9b-8b2b-1035fd21d196.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:00:24Z
  text: {"copyright_id":"0x72dad263303ae1eaeb3cb9ff7034ab3eb29b91d91f6c98e0e6e1227a49258b0d","name":"Koji Nishimura","registered_at":"2026-06-14T14:31:55Z","symbol":"NIM0482486","token_address":"0x87158d0019c9f221cb8c6f532b4c12481c8e1b0b","type":"artist","uuid":"6040f71e-a28d-4c9b-8b2b-1035fd21d196"}