中村健吾
type: MusicGroup
popularity: 2
followers: 22
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa650131fd8e5da4f358f9e8e3452c75ff6f196e49ee76388f640c6bd9b94f2a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/046f67d4-f1b4-457c-a056-0e11f4da7242.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/046f67d4-f1b4-457c-a056-0e11f4da7242.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/046f67d4-f1b4-457c-a056-0e11f4da7242
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfa650131fd8e5da4f358f9e8e3452c75ff6f196e49ee76388f640c6bd9b94f2a","name":"中村健吾","registered_at":"2026-06-15T15:08:43Z","symbol":"NIM0746600","token_address":"0x678f70880353e34b3e59f0bd11dfaddd4a9f20e9","type":"artist","uuid":"046f67d4-f1b4-457c-a056-0e11f4da7242"}
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 0xfa650131fd8e5da4f358f9e8e3452c75ff6f196e49ee76388f640c6bd9b94f2a. 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/046f67d4-f1b4-457c-a056-0e11f4da7242.json and https://artists.proofprofile.net/proofs/artist/046f67d4-f1b4-457c-a056-0e11f4da7242.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xfa650131fd8e5da4f358f9e8e3452c75ff6f196e49ee76388f640c6bd9b94f2a","name":"中村健吾","registered_at":"2026-06-15T15:08:43Z","symbol":"NIM0746600","token_address":"0x678f70880353e34b3e59f0bd11dfaddd4a9f20e9","type":"artist","uuid":"046f67d4-f1b4-457c-a056-0e11f4da7242"}
album: リガーディング・スタンダード
  type: MusicAlbum
  date published: 2007-08-08
album: Generations
  type: MusicAlbum
  date published: 2008-10-22
album: ソングズ・イン・マイ・ライフ・タイム
  type: MusicAlbum
  date published: 2012-10-03