Daisuke Kawaguchi
type: MusicGroup
genre: enka
genre: j-r&b
genre: kayokyoku
popularity: 3
followers: 745
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x069d903777f62f212db5abad791c3e99059f4a2f9f02972a21c60e341244a1ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d4cc36cc-dbe8-4f1a-ad0b-efcfb676c28e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d4cc36cc-dbe8-4f1a-ad0b-efcfb676c28e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d4cc36cc-dbe8-4f1a-ad0b-efcfb676c28e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x069d903777f62f212db5abad791c3e99059f4a2f9f02972a21c60e341244a1ff","name":"Daisuke Kawaguchi","registered_at":"2026-06-21T02:09:14Z","symbol":"NIM1787332","token_address":"0x49c802ce8879b81af95518aa271d08629a16ceca","type":"artist","uuid":"d4cc36cc-dbe8-4f1a-ad0b-efcfb676c28e"}
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 0x069d903777f62f212db5abad791c3e99059f4a2f9f02972a21c60e341244a1ff. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4cc36cc-dbe8-4f1a-ad0b-efcfb676c28e.json and https://artists.proofprofile.net/proofs/artist/d4cc36cc-dbe8-4f1a-ad0b-efcfb676c28e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0x069d903777f62f212db5abad791c3e99059f4a2f9f02972a21c60e341244a1ff","name":"Daisuke Kawaguchi","registered_at":"2026-06-21T02:09:14Z","symbol":"NIM1787332","token_address":"0x49c802ce8879b81af95518aa271d08629a16ceca","type":"artist","uuid":"d4cc36cc-dbe8-4f1a-ad0b-efcfb676c28e"}
album: Not Alone
  type: MusicAlbum
  date published: 2003
album: Memory Lane
  type: MusicAlbum
  date published: 2003
album: Sunshine After Monsoon
  type: MusicAlbum
  date published: 2003
album: HIGH CRIME
  type: MusicAlbum
  date published: 2003
album: BEFORE THE DAWN
  type: MusicAlbum
  date published: 2003
album: BEFORE THE DAWN
  type: MusicAlbum
  date published: 2003-01-29
album: Memory Lane
  type: MusicAlbum
  date published: 2003-04-23
album: Sun Shower
  type: MusicAlbum
  date published: 2004
album: Sunshine After Monsoon
  type: MusicAlbum
  date published: 2004-05-19
album: Commelina
  type: MusicAlbum
  date published: 2022-09-10