Hiroaki Matsuno
type: MusicGroup
popularity: 2
followers: 105
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x841a8fefc452647bb04b82f5cd94da07c8cb592b8cb06c19c0845ce71de0bd3e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fc5a81d1-0f15-47fb-93d4-a8ac44ce9622.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fc5a81d1-0f15-47fb-93d4-a8ac44ce9622.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fc5a81d1-0f15-47fb-93d4-a8ac44ce9622
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x841a8fefc452647bb04b82f5cd94da07c8cb592b8cb06c19c0845ce71de0bd3e","name":"Hiroaki Matsuno","registered_at":"2026-06-21T17:36:11Z","symbol":"NIM1989424","token_address":"0x1a332b353a62ed1c04b84cee55472b408859b6f3","type":"artist","uuid":"fc5a81d1-0f15-47fb-93d4-a8ac44ce9622"}
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 0x841a8fefc452647bb04b82f5cd94da07c8cb592b8cb06c19c0845ce71de0bd3e. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc5a81d1-0f15-47fb-93d4-a8ac44ce9622.json and https://artists.proofprofile.net/proofs/artist/fc5a81d1-0f15-47fb-93d4-a8ac44ce9622.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x841a8fefc452647bb04b82f5cd94da07c8cb592b8cb06c19c0845ce71de0bd3e","name":"Hiroaki Matsuno","registered_at":"2026-06-21T17:36:11Z","symbol":"NIM1989424","token_address":"0x1a332b353a62ed1c04b84cee55472b408859b6f3","type":"artist","uuid":"fc5a81d1-0f15-47fb-93d4-a8ac44ce9622"}
album: ニュー・シネマ・パラダイス
  type: MusicAlbum
  date published: 1993-12-01
album: ワンス・アポン・ア・タイム・イン・アメリカ
  type: MusicAlbum
  date published: 1994-06-22
album: 美しきヴァイオリンの調べ ～ シネマ＆クラシック - プレミアム・ツイン・ベスト・シリーズ
  type: MusicAlbum
  date published: 2012-07-20