安西愛子
type: MusicGroup
genre: enka
genre: kayokyoku
popularity: 3
followers: 47
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa34ee91923314a88693d33aca660eae25b382a7a2915e83530d7d1c8d318904d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/84685fb3-382e-4997-b6b1-ddfb05e562fa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/84685fb3-382e-4997-b6b1-ddfb05e562fa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/84685fb3-382e-4997-b6b1-ddfb05e562fa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa34ee91923314a88693d33aca660eae25b382a7a2915e83530d7d1c8d318904d","name":"安西愛子","registered_at":"2026-06-17T11:50:44Z","symbol":"NIM1386585","token_address":"0x5c4cd4b4815e016fbb672a103c0a7f7556081d48","type":"artist","uuid":"84685fb3-382e-4997-b6b1-ddfb05e562fa"}
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 0xa34ee91923314a88693d33aca660eae25b382a7a2915e83530d7d1c8d318904d. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/84685fb3-382e-4997-b6b1-ddfb05e562fa.json and https://artists.proofprofile.net/proofs/artist/84685fb3-382e-4997-b6b1-ddfb05e562fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xa34ee91923314a88693d33aca660eae25b382a7a2915e83530d7d1c8d318904d","name":"安西愛子","registered_at":"2026-06-17T11:50:44Z","symbol":"NIM1386585","token_address":"0x5c4cd4b4815e016fbb672a103c0a7f7556081d48","type":"artist","uuid":"84685fb3-382e-4997-b6b1-ddfb05e562fa"}
album: 日本の流行歌スターたち(38) 安西愛子 青葉の笛～この日のために-東京オリンピックの歌-
  type: MusicAlbum
  date published: 2020-10-21