Akiko Ikuina
type: MusicGroup
genre: city pop
genre: j-pop
description: is a Japanese singer, actress, tarento, and politician. She joined the Japanese pop idol group Onyanko Club in 1986.根城泰 図解入門業界研究最新コンビニ業界の動向とカラクリがよーくわかる本: 2008 "1987 年に放映した「からあげクン」の 0 ^に、当時アイドルだった生稲
popularity: 7
followers: 1441
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5731fca1fe2b64e276608e7d02d7e3ed901660defc9f03adaca8329590611211
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/982d79c0-39c7-488d-a23a-2cbafbf930e3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/982d79c0-39c7-488d-a23a-2cbafbf930e3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/982d79c0-39c7-488d-a23a-2cbafbf930e3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5731fca1fe2b64e276608e7d02d7e3ed901660defc9f03adaca8329590611211","name":"Akiko Ikuina","registered_at":"2026-06-17T18:43:50Z","symbol":"NIM1485100","token_address":"0xcb536bf6145b132aa14c0d183cf72e097cb9f1ab","type":"artist","uuid":"982d79c0-39c7-488d-a23a-2cbafbf930e3"}
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 0x5731fca1fe2b64e276608e7d02d7e3ed901660defc9f03adaca8329590611211. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/982d79c0-39c7-488d-a23a-2cbafbf930e3.json and https://artists.proofprofile.net/proofs/artist/982d79c0-39c7-488d-a23a-2cbafbf930e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x5731fca1fe2b64e276608e7d02d7e3ed901660defc9f03adaca8329590611211","name":"Akiko Ikuina","registered_at":"2026-06-17T18:43:50Z","symbol":"NIM1485100","token_address":"0xcb536bf6145b132aa14c0d183cf72e097cb9f1ab","type":"artist","uuid":"982d79c0-39c7-488d-a23a-2cbafbf930e3"}
album: Virgin Shonen ni Kuchizuke wo
  type: MusicAlbum
  date published: 1988
album: Nippon "Ikuina" Kiko
  type: MusicAlbum
  date published: 1989
album: Wasuretai no ni
  type: MusicAlbum
  date published: 1989
album: Japanese Girl
  type: MusicAlbum
  date published: 1989
album: Akko no X'mas Calender
  type: MusicAlbum
  date published: 1989
album: Fanfare ga Kikoeru
  type: MusicAlbum
  date published: 1989
album: Nichiyobi wa Iranai
  type: MusicAlbum
  date published: 1990
album: Luna Great
  type: MusicAlbum
  date published: 1991
album: Nihon "Ikuina" Kikou + Single Collection
  type: MusicAlbum
  date published: 2017-11-01