月坂紗由(CV:鬼頭明里)
type: MusicGroup
genre: shibuya-kei
popularity: 2
followers: 405
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4844d85f6a843a90c4d2e66e3385c2ff1683e8a59be6c84ed06097e7d749cffa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/adb50c1f-2d1e-412a-8c49-b35930dc10dd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/adb50c1f-2d1e-412a-8c49-b35930dc10dd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/adb50c1f-2d1e-412a-8c49-b35930dc10dd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4844d85f6a843a90c4d2e66e3385c2ff1683e8a59be6c84ed06097e7d749cffa","name":"月坂紗由(CV:鬼頭明里)","registered_at":"2026-06-20T10:43:40Z","symbol":"NIM1593924","token_address":"0x8191933b3a7eec879be950adf1abb1da7d3d7e77","type":"artist","uuid":"adb50c1f-2d1e-412a-8c49-b35930dc10dd"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4844d85f6a843a90c4d2e66e3385c2ff1683e8a59be6c84ed06097e7d749cffa. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adb50c1f-2d1e-412a-8c49-b35930dc10dd.json and https://artists.proofprofile.net/proofs/artist/adb50c1f-2d1e-412a-8c49-b35930dc10dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
  text: {"copyright_id":"0x4844d85f6a843a90c4d2e66e3385c2ff1683e8a59be6c84ed06097e7d749cffa","name":"月坂紗由(CV:鬼頭明里)","registered_at":"2026-06-20T10:43:40Z","symbol":"NIM1593924","token_address":"0x8191933b3a7eec879be950adf1abb1da7d3d7e77","type":"artist","uuid":"adb50c1f-2d1e-412a-8c49-b35930dc10dd"}