Hiro Tsunoda
type: MusicGroup
genre: enka
genre: kayokyoku
popularity: 13
followers: 1247
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe45b8d67fae0a38de990c9cff6e4d97893b551cffe44a2aed93ff16f5aae4a32
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953630
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953630
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2fbca5d8-3601-4a87-acb9-a6a4082a8d1c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2fbca5d8-3601-4a87-acb9-a6a4082a8d1c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2fbca5d8-3601-4a87-acb9-a6a4082a8d1c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T12:06:27Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe45b8d67fae0a38de990c9cff6e4d97893b551cffe44a2aed93ff16f5aae4a32","name":"Hiro Tsunoda","registered_at":"2026-06-14T09:29:16Z","symbol":"NIM0410262","token_address":"0x72e91c627f6fd4b9eba7a75b83d558aa585e512c","type":"artist","uuid":"2fbca5d8-3601-4a87-acb9-a6a4082a8d1c"}
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 0xe45b8d67fae0a38de990c9cff6e4d97893b551cffe44a2aed93ff16f5aae4a32. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2fbca5d8-3601-4a87-acb9-a6a4082a8d1c.json and https://artists.proofprofile.net/proofs/artist/2fbca5d8-3601-4a87-acb9-a6a4082a8d1c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T12:06:27Z
  text: {"copyright_id":"0xe45b8d67fae0a38de990c9cff6e4d97893b551cffe44a2aed93ff16f5aae4a32","name":"Hiro Tsunoda","registered_at":"2026-06-14T09:29:16Z","symbol":"NIM0410262","token_address":"0x72e91c627f6fd4b9eba7a75b83d558aa585e512c","type":"artist","uuid":"2fbca5d8-3601-4a87-acb9-a6a4082a8d1c"}
album: 千客万来
  type: MusicAlbum
  date published: 1975
album: ゴールデン☆ベスト つのだ☆ひろ
  type: MusicAlbum
  date published: 2005-07-01
album: 般若心經
  type: MusicAlbum
  date published: 2019-11-10