Citizen Kain
type: MusicGroup
popularity: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8d92118fa4cd04f3fc5b301da2a5c9fcc76fac568314d9494719cda8999bc4e0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ff19fcaf-80ea-4a58-9cb0-536f9aa30c56.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ff19fcaf-80ea-4a58-9cb0-536f9aa30c56.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ff19fcaf-80ea-4a58-9cb0-536f9aa30c56
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8d92118fa4cd04f3fc5b301da2a5c9fcc76fac568314d9494719cda8999bc4e0","name":"Citizen Kain","registered_at":"2026-06-21T18:33:17Z","symbol":"NIM2002829","token_address":"0xe287b2245138f3712b83733771a4d865dcc804b9","type":"artist","uuid":"ff19fcaf-80ea-4a58-9cb0-536f9aa30c56"}
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 0x8d92118fa4cd04f3fc5b301da2a5c9fcc76fac568314d9494719cda8999bc4e0. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff19fcaf-80ea-4a58-9cb0-536f9aa30c56.json and https://artists.proofprofile.net/proofs/artist/ff19fcaf-80ea-4a58-9cb0-536f9aa30c56.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T20:46:40Z
  text: {"copyright_id":"0x8d92118fa4cd04f3fc5b301da2a5c9fcc76fac568314d9494719cda8999bc4e0","name":"Citizen Kain","registered_at":"2026-06-21T18:33:17Z","symbol":"NIM2002829","token_address":"0xe287b2245138f3712b83733771a4d865dcc804b9","type":"artist","uuid":"ff19fcaf-80ea-4a58-9cb0-536f9aa30c56"}