大西ユカリと新世界
type: MusicGroup
genre: enka
genre: kayokyoku
popularity: 5
followers: 704
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbde784f30074fccb37d05be85fd75cab5f024744e14c46439c10bb199e8ff3b2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb6adf36-1377-4c36-817e-564b34c97c2f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb6adf36-1377-4c36-817e-564b34c97c2f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fb6adf36-1377-4c36-817e-564b34c97c2f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbde784f30074fccb37d05be85fd75cab5f024744e14c46439c10bb199e8ff3b2","name":"大西ユカリと新世界","registered_at":"2026-06-21T17:10:29Z","symbol":"NIM1982942","token_address":"0xd8a393bc111586279fdd11c10958e9e21c3a88b4","type":"artist","uuid":"fb6adf36-1377-4c36-817e-564b34c97c2f"}
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 0xbde784f30074fccb37d05be85fd75cab5f024744e14c46439c10bb199e8ff3b2. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb6adf36-1377-4c36-817e-564b34c97c2f.json and https://artists.proofprofile.net/proofs/artist/fb6adf36-1377-4c36-817e-564b34c97c2f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0xbde784f30074fccb37d05be85fd75cab5f024744e14c46439c10bb199e8ff3b2","name":"大西ユカリと新世界","registered_at":"2026-06-21T17:10:29Z","symbol":"NIM1982942","token_address":"0xd8a393bc111586279fdd11c10958e9e21c3a88b4","type":"artist","uuid":"fb6adf36-1377-4c36-817e-564b34c97c2f"}
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  type: MusicAlbum
  date published: 2002-04-10
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  type: MusicAlbum
  date published: 2003-03-21
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  type: MusicAlbum
  date published: 2004-04-07
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  type: MusicAlbum
  date published: 2005-01-26
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  type: MusicAlbum
  date published: 2005-10-05
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  type: MusicAlbum
  date published: 2006-09-20