河野純喜(JO1)
type: MusicGroup
popularity: 25
followers: 7225
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7198be62d8c0d7519d526b486bc794ccfc8b39b084d8a0385ca94b7459d8a73a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0b34f271-32cf-47e2-b83c-b428e23ab786.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0b34f271-32cf-47e2-b83c-b428e23ab786.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0b34f271-32cf-47e2-b83c-b428e23ab786
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7198be62d8c0d7519d526b486bc794ccfc8b39b084d8a0385ca94b7459d8a73a","name":"河野純喜(JO1)","registered_at":"2026-06-11T11:33:56Z","symbol":"NIM0015229","token_address":"0x5888843dc3ab139400a1475ff0a5afc5948ab518","type":"artist","uuid":"0b34f271-32cf-47e2-b83c-b428e23ab786"}
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 0x7198be62d8c0d7519d526b486bc794ccfc8b39b084d8a0385ca94b7459d8a73a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0b34f271-32cf-47e2-b83c-b428e23ab786.json and https://artists.proofprofile.net/proofs/artist/0b34f271-32cf-47e2-b83c-b428e23ab786.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x7198be62d8c0d7519d526b486bc794ccfc8b39b084d8a0385ca94b7459d8a73a","name":"河野純喜(JO1)","registered_at":"2026-06-11T11:33:56Z","symbol":"NIM0015229","token_address":"0x5888843dc3ab139400a1475ff0a5afc5948ab518","type":"artist","uuid":"0b34f271-32cf-47e2-b83c-b428e23ab786"}
album: 無限大 (From THE FIRST TAKE)
  type: MusicAlbum
  date published: 2020-03-04
album: Voice(君の声) (From THE FIRST TAKE)
  type: MusicAlbum
  date published: 2020-08-26