渡辺正典
type: MusicGroup
genre: enka
genre: kayokyoku
popularity: 5
followers: 151
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5cbba8cccff364e200bae8f91c0e77972e0b50958fa8877b257c7933ee9e94c3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a28df7ee-5fc7-46dc-94c3-3ac9cf8e5fd3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a28df7ee-5fc7-46dc-94c3-3ac9cf8e5fd3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a28df7ee-5fc7-46dc-94c3-3ac9cf8e5fd3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5cbba8cccff364e200bae8f91c0e77972e0b50958fa8877b257c7933ee9e94c3","name":"渡辺正典","registered_at":"2026-06-20T06:14:37Z","symbol":"NIM1537611","token_address":"0xd24f1ae0f9c8ca19906416991c4aadfecb153942","type":"artist","uuid":"a28df7ee-5fc7-46dc-94c3-3ac9cf8e5fd3"}
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 0x5cbba8cccff364e200bae8f91c0e77972e0b50958fa8877b257c7933ee9e94c3. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a28df7ee-5fc7-46dc-94c3-3ac9cf8e5fd3.json and https://artists.proofprofile.net/proofs/artist/a28df7ee-5fc7-46dc-94c3-3ac9cf8e5fd3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x5cbba8cccff364e200bae8f91c0e77972e0b50958fa8877b257c7933ee9e94c3","name":"渡辺正典","registered_at":"2026-06-20T06:14:37Z","symbol":"NIM1537611","token_address":"0xd24f1ae0f9c8ca19906416991c4aadfecb153942","type":"artist","uuid":"a28df7ee-5fc7-46dc-94c3-3ac9cf8e5fd3"}
album: トランペットはご機嫌!<4>~川の流れのように
  type: MusicAlbum
  date published: 2016-04-01
album: トランペットはご機嫌!<5>~北の旅人
  type: MusicAlbum
  date published: 2016-04-01
album: トランペットはご機嫌!<1>~ジャイアンツ・ブルース
  type: MusicAlbum
  date published: 2016-04-01