相沢基紀 (CV:大山鎬則)
type: MusicGroup
genre: anime
popularity: 3
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcef7aa63dd06255c649a7229b5b7c3cd988c5dfeb4a5a96790e067ff5a8bd0b3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e695c2a0-c179-4e19-9bba-9312310aeeea.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e695c2a0-c179-4e19-9bba-9312310aeeea.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e695c2a0-c179-4e19-9bba-9312310aeeea
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcef7aa63dd06255c649a7229b5b7c3cd988c5dfeb4a5a96790e067ff5a8bd0b3","name":"相沢基紀 (CV:大山鎬則)","registered_at":"2026-06-21T08:52:47Z","symbol":"NIM1880171","token_address":"0x1e33a870643eceaa9dee86a7e2f0e238aa8175de","type":"artist","uuid":"e695c2a0-c179-4e19-9bba-9312310aeeea"}
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 0xcef7aa63dd06255c649a7229b5b7c3cd988c5dfeb4a5a96790e067ff5a8bd0b3. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e695c2a0-c179-4e19-9bba-9312310aeeea.json and https://artists.proofprofile.net/proofs/artist/e695c2a0-c179-4e19-9bba-9312310aeeea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xcef7aa63dd06255c649a7229b5b7c3cd988c5dfeb4a5a96790e067ff5a8bd0b3","name":"相沢基紀 (CV:大山鎬則)","registered_at":"2026-06-21T08:52:47Z","symbol":"NIM1880171","token_address":"0x1e33a870643eceaa9dee86a7e2f0e238aa8175de","type":"artist","uuid":"e695c2a0-c179-4e19-9bba-9312310aeeea"}