高山紗代子 (CV.駒形友梨)
type: MusicGroup
popularity: 22
followers: 409
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x887d497396d0749229978624b94935a8eeabe8512ebc7fece8bfeaa3fbc98324
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7e5f19d2-bfc5-4fc9-b584-2377796ee46e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7e5f19d2-bfc5-4fc9-b584-2377796ee46e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7e5f19d2-bfc5-4fc9-b584-2377796ee46e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x887d497396d0749229978624b94935a8eeabe8512ebc7fece8bfeaa3fbc98324","name":"高山紗代子 (CV.駒形友梨)","registered_at":"2026-06-12T02:54:09Z","symbol":"NIM0165171","token_address":"0x27f5db8e13e49f6ddc5b0522a6e05a40b53fdcc4","type":"artist","uuid":"7e5f19d2-bfc5-4fc9-b584-2377796ee46e"}
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 0x887d497396d0749229978624b94935a8eeabe8512ebc7fece8bfeaa3fbc98324. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e5f19d2-bfc5-4fc9-b584-2377796ee46e.json and https://artists.proofprofile.net/proofs/artist/7e5f19d2-bfc5-4fc9-b584-2377796ee46e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x887d497396d0749229978624b94935a8eeabe8512ebc7fece8bfeaa3fbc98324","name":"高山紗代子 (CV.駒形友梨)","registered_at":"2026-06-12T02:54:09Z","symbol":"NIM0165171","token_address":"0x27f5db8e13e49f6ddc5b0522a6e05a40b53fdcc4","type":"artist","uuid":"7e5f19d2-bfc5-4fc9-b584-2377796ee46e"}
album: THE IDOLM@STER MILLION THE@TER WAVE 15 chicAAmor
  type: MusicAlbum
  date published: 2021-12-15