宇和島 麒平(CV:森嶋 秀太)
type: MusicGroup
genre: vocaloid
popularity: 12
followers: 342
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5135ca3c28e3b01bf916d5f148ea56cd80d09cc10a1971ad1e31571bf93b3abf
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/5fea0745-59db-4158-af2d-26a121f42ab6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5fea0745-59db-4158-af2d-26a121f42ab6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5fea0745-59db-4158-af2d-26a121f42ab6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:07:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5135ca3c28e3b01bf916d5f148ea56cd80d09cc10a1971ad1e31571bf93b3abf","name":"宇和島 麒平(CV:森嶋 秀太)","registered_at":"2026-06-14T14:34:15Z","symbol":"NIM0483046","token_address":"0xcb7cb7672b4063191d268cd77a4149a1e558abdf","type":"artist","uuid":"5fea0745-59db-4158-af2d-26a121f42ab6"}
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 0x5135ca3c28e3b01bf916d5f148ea56cd80d09cc10a1971ad1e31571bf93b3abf. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5fea0745-59db-4158-af2d-26a121f42ab6.json and https://artists.proofprofile.net/proofs/artist/5fea0745-59db-4158-af2d-26a121f42ab6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T19:07:16Z
  text: {"copyright_id":"0x5135ca3c28e3b01bf916d5f148ea56cd80d09cc10a1971ad1e31571bf93b3abf","name":"宇和島 麒平(CV:森嶋 秀太)","registered_at":"2026-06-14T14:34:15Z","symbol":"NIM0483046","token_address":"0xcb7cb7672b4063191d268cd77a4149a1e558abdf","type":"artist","uuid":"5fea0745-59db-4158-af2d-26a121f42ab6"}
album: ケッペキショウ
  type: MusicAlbum
  date published: 2020-03-18