石田ひかり
type: MusicGroup
genre: city pop
genre: j-pop
genre: kayokyoku
popularity: 5
followers: 1312
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ecd94b0851d4ccb796d346f068053912f8e4e62c7497d6fd35a090c166ce8a2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954046
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954046
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41784b3e-7914-4379-b699-22223ca548b2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41784b3e-7914-4379-b699-22223ca548b2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/41784b3e-7914-4379-b699-22223ca548b2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:53:03Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2ecd94b0851d4ccb796d346f068053912f8e4e62c7497d6fd35a090c166ce8a2","name":"石田ひかり","registered_at":"2026-06-16T12:23:32Z","symbol":"NIM1050892","token_address":"0x183dfbd750f2860ba366bd50881fb4ad50c54d12","type":"artist","uuid":"41784b3e-7914-4379-b699-22223ca548b2"}
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 0x2ecd94b0851d4ccb796d346f068053912f8e4e62c7497d6fd35a090c166ce8a2. Chain 2 (Bitcoin): anchored in block 954046 (2026-06-17T04:53:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41784b3e-7914-4379-b699-22223ca548b2.json and https://artists.proofprofile.net/proofs/artist/41784b3e-7914-4379-b699-22223ca548b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T04:53:03Z
  text: {"copyright_id":"0x2ecd94b0851d4ccb796d346f068053912f8e4e62c7497d6fd35a090c166ce8a2","name":"石田ひかり","registered_at":"2026-06-16T12:23:32Z","symbol":"NIM1050892","token_address":"0x183dfbd750f2860ba366bd50881fb4ad50c54d12","type":"artist","uuid":"41784b3e-7914-4379-b699-22223ca548b2"}
album: 石田ひかり ゴールデン★ベスト
  type: MusicAlbum
  date published: 2012-01-11