富井大樹(Cv.蒼井翔太)
type: MusicGroup
popularity: 6
followers: 16
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0e296cd62888d230dc079d54be043b350d3343ede602bbc39c319c4c8ea57238
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953975
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953975
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b5d19ef-fc70-49a2-bf6d-33d5ad85ca17.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b5d19ef-fc70-49a2-bf6d-33d5ad85ca17.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2b5d19ef-fc70-49a2-bf6d-33d5ad85ca17
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:53:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0e296cd62888d230dc079d54be043b350d3343ede602bbc39c319c4c8ea57238","name":"富井大樹(Cv.蒼井翔太)","registered_at":"2026-06-16T04:36:47Z","symbol":"NIM0939479","token_address":"0xf0fde37fea63acbd5f0c4ca09d63b1186b0d42b5","type":"artist","uuid":"2b5d19ef-fc70-49a2-bf6d-33d5ad85ca17"}
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 0x0e296cd62888d230dc079d54be043b350d3343ede602bbc39c319c4c8ea57238. Chain 2 (Bitcoin): anchored in block 953975 (2026-06-16T16:53:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b5d19ef-fc70-49a2-bf6d-33d5ad85ca17.json and https://artists.proofprofile.net/proofs/artist/2b5d19ef-fc70-49a2-bf6d-33d5ad85ca17.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:53:41Z
  text: {"copyright_id":"0x0e296cd62888d230dc079d54be043b350d3343ede602bbc39c319c4c8ea57238","name":"富井大樹(Cv.蒼井翔太)","registered_at":"2026-06-16T04:36:47Z","symbol":"NIM0939479","token_address":"0xf0fde37fea63acbd5f0c4ca09d63b1186b0d42b5","type":"artist","uuid":"2b5d19ef-fc70-49a2-bf6d-33d5ad85ca17"}
album: 「少年ハリウッド-HOLLY STAGE FOR 49-」キャラクターソング(富井大樹)
  type: MusicAlbum
  date published: 2014-10-08