小泉花陽 (CV.久保ユリカ) from μ's
type: MusicGroup
popularity: 4
followers: 6326
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x05c5648ea9f3ca74b804f75198cd24c74c509c0fffb2d99a8a41973537a6dd10
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8129300b-89f3-4ee8-9f28-2d339c78e62e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8129300b-89f3-4ee8-9f28-2d339c78e62e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8129300b-89f3-4ee8-9f28-2d339c78e62e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x05c5648ea9f3ca74b804f75198cd24c74c509c0fffb2d99a8a41973537a6dd10","name":"小泉花陽 (CV.久保ユリカ) from μ's","registered_at":"2026-06-17T11:04:03Z","symbol":"NIM1375448","token_address":"0x78896c3d765680481bb149a0bbf8e0343ff02968","type":"artist","uuid":"8129300b-89f3-4ee8-9f28-2d339c78e62e"}
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 0x05c5648ea9f3ca74b804f75198cd24c74c509c0fffb2d99a8a41973537a6dd10. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8129300b-89f3-4ee8-9f28-2d339c78e62e.json and https://artists.proofprofile.net/proofs/artist/8129300b-89f3-4ee8-9f28-2d339c78e62e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x05c5648ea9f3ca74b804f75198cd24c74c509c0fffb2d99a8a41973537a6dd10","name":"小泉花陽 (CV.久保ユリカ) from μ's","registered_at":"2026-06-17T11:04:03Z","symbol":"NIM1375448","token_address":"0x78896c3d765680481bb149a0bbf8e0343ff02968","type":"artist","uuid":"8129300b-89f3-4ee8-9f28-2d339c78e62e"}
album: ラブライブ!Solo Live! Collection 若草のSeason
  type: MusicAlbum
  date published: 2014-04-02