Hiroaki Yamashita
type: MusicGroup
genre: neoclassical
popularity: 5
followers: 130
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xac29f5fa9247bcead5b8cd977e14b1b8fbaae775e73a7eafd37d041303fd3c3b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953875
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953875
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/07d83c83-026c-4688-ad5a-942cba9eb51c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/07d83c83-026c-4688-ad5a-942cba9eb51c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/07d83c83-026c-4688-ad5a-942cba9eb51c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:12:46Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xac29f5fa9247bcead5b8cd977e14b1b8fbaae775e73a7eafd37d041303fd3c3b","name":"Hiroaki Yamashita","registered_at":"2026-06-15T16:15:44Z","symbol":"NIM0762606","token_address":"0x116a459141d912e82371d6f9365926587fee3b82","type":"artist","uuid":"07d83c83-026c-4688-ad5a-942cba9eb51c"}
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 0xac29f5fa9247bcead5b8cd977e14b1b8fbaae775e73a7eafd37d041303fd3c3b. Chain 2 (Bitcoin): anchored in block 953875 (2026-06-16T02:12:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07d83c83-026c-4688-ad5a-942cba9eb51c.json and https://artists.proofprofile.net/proofs/artist/07d83c83-026c-4688-ad5a-942cba9eb51c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:12:46Z
  text: {"copyright_id":"0xac29f5fa9247bcead5b8cd977e14b1b8fbaae775e73a7eafd37d041303fd3c3b","name":"Hiroaki Yamashita","registered_at":"2026-06-15T16:15:44Z","symbol":"NIM0762606","token_address":"0x116a459141d912e82371d6f9365926587fee3b82","type":"artist","uuid":"07d83c83-026c-4688-ad5a-942cba9eb51c"}
album: Shinmachigawa Original Soundtrack
  type: MusicAlbum
  date published: 2010-08-01
album: 新町川 オリジナル・サウンドトラック
  type: MusicAlbum
  date published: 2010-08-01
album: カッコウの卵は誰のもの オリジナル・サウンドトラック
  type: MusicAlbum
  date published: 2016-05-18
album: “The First Supper” Original Soundtrack
  type: MusicAlbum
  date published: 2019-11-20
album: 『最初の晩餐』オリジナル・サウンドトラック
  type: MusicAlbum
  date published: 2019-11-20
album: 「アノニマス～警視庁”指殺人”対策室～」オリジナル・サウンドトラック
  type: MusicAlbum
  date published: 2021-03-15