石丸寛
type: MusicGroup
genre: orchestra
popularity: 7
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x81c555b3b922e815767775d6ee34ee131b3bedc17d8a7a16d636f4d5ec97d0cd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9ce29ad-fe5d-4d32-bdf3-4af508d4bb65.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9ce29ad-fe5d-4d32-bdf3-4af508d4bb65.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b9ce29ad-fe5d-4d32-bdf3-4af508d4bb65
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x81c555b3b922e815767775d6ee34ee131b3bedc17d8a7a16d636f4d5ec97d0cd","name":"石丸寛","registered_at":"2026-06-20T16:12:53Z","symbol":"NIM1651591","token_address":"0x28cb7e9602a38ed47fa6b59ecbbf6bdef4ea9fed","type":"artist","uuid":"b9ce29ad-fe5d-4d32-bdf3-4af508d4bb65"}
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 0x81c555b3b922e815767775d6ee34ee131b3bedc17d8a7a16d636f4d5ec97d0cd. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9ce29ad-fe5d-4d32-bdf3-4af508d4bb65.json and https://artists.proofprofile.net/proofs/artist/b9ce29ad-fe5d-4d32-bdf3-4af508d4bb65.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0x81c555b3b922e815767775d6ee34ee131b3bedc17d8a7a16d636f4d5ec97d0cd","name":"石丸寛","registered_at":"2026-06-20T16:12:53Z","symbol":"NIM1651591","token_address":"0x28cb7e9602a38ed47fa6b59ecbbf6bdef4ea9fed","type":"artist","uuid":"b9ce29ad-fe5d-4d32-bdf3-4af508d4bb65"}