九重佑三子
type: MusicGroup
genre: j-r&b
genre: kayokyoku
popularity: 2
followers: 356
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x54e71ed2da46f8d593f6bb53c1e100037727ffc21ba30e3067ccaf2e6a263c5e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954134
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954134
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7ee3591f-3b3d-4567-bbef-f024c4fe31f2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7ee3591f-3b3d-4567-bbef-f024c4fe31f2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7ee3591f-3b3d-4567-bbef-f024c4fe31f2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:41:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x54e71ed2da46f8d593f6bb53c1e100037727ffc21ba30e3067ccaf2e6a263c5e","name":"九重佑三子","registered_at":"2026-06-17T09:55:01Z","symbol":"NIM1358997","token_address":"0x802140446fb7147fd0f3fa603ad2ffae31c7b395","type":"artist","uuid":"7ee3591f-3b3d-4567-bbef-f024c4fe31f2"}
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 0x54e71ed2da46f8d593f6bb53c1e100037727ffc21ba30e3067ccaf2e6a263c5e. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ee3591f-3b3d-4567-bbef-f024c4fe31f2.json and https://artists.proofprofile.net/proofs/artist/7ee3591f-3b3d-4567-bbef-f024c4fe31f2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:41:05Z
  text: {"copyright_id":"0x54e71ed2da46f8d593f6bb53c1e100037727ffc21ba30e3067ccaf2e6a263c5e","name":"九重佑三子","registered_at":"2026-06-17T09:55:01Z","symbol":"NIM1358997","token_address":"0x802140446fb7147fd0f3fa603ad2ffae31c7b395","type":"artist","uuid":"7ee3591f-3b3d-4567-bbef-f024c4fe31f2"}
album: ゴールデン☆ベスト 九重佑三子
  type: MusicAlbum
  date published: 2003-06-25