角野 裕
type: MusicGroup
popularity: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb608d0abf71f26be5936348603bfffc70515c7d6383be97431d18898d70f51a2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954500
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9bf83a12-36c2-47ec-b368-b4cf46689215.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9bf83a12-36c2-47ec-b368-b4cf46689215.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9bf83a12-36c2-47ec-b368-b4cf46689215
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T04:47:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb608d0abf71f26be5936348603bfffc70515c7d6383be97431d18898d70f51a2","name":"角野 裕","registered_at":"2026-06-20T04:01:09Z","symbol":"NIM1505007","token_address":"0x89e0eb153cb28185043e3bc8d027fc47e0ff33ab","type":"artist","uuid":"9bf83a12-36c2-47ec-b368-b4cf46689215"}
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 0xb608d0abf71f26be5936348603bfffc70515c7d6383be97431d18898d70f51a2. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9bf83a12-36c2-47ec-b368-b4cf46689215.json and https://artists.proofprofile.net/proofs/artist/9bf83a12-36c2-47ec-b368-b4cf46689215.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T04:47:29Z
  text: {"copyright_id":"0xb608d0abf71f26be5936348603bfffc70515c7d6383be97431d18898d70f51a2","name":"角野 裕","registered_at":"2026-06-20T04:01:09Z","symbol":"NIM1505007","token_address":"0x89e0eb153cb28185043e3bc8d027fc47e0ff33ab","type":"artist","uuid":"9bf83a12-36c2-47ec-b368-b4cf46689215"}
album: ピアノ絵本館 チャイコフスキー作曲 くるみわり人形 (れんだん)
  type: MusicAlbum
  date published: 1988-02-01
album: ピアノ連弾シリーズ フランス3大連弾曲 ドリー / 小組曲 / マ・メール・ロワ
  type: MusicAlbum
  date published: 1990-03-01