Black Sheriff
type: MusicGroup
genre: asakaa
genre: hiplife
popularity: 18
followers: 568
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe669048a8a75762ed568b6218ac8d8f9db67e8d052f0345d79262a0b07ae9d07
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953791
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953791
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/df2ce576-dff2-440c-af6e-1461564172fc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/df2ce576-dff2-440c-af6e-1461564172fc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/df2ce576-dff2-440c-af6e-1461564172fc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe669048a8a75762ed568b6218ac8d8f9db67e8d052f0345d79262a0b07ae9d07","name":"Black Sheriff","registered_at":"2026-06-15T03:52:57Z","symbol":"NIM0673627","token_address":"0x24e8384eb4d1bc47ee999fa9b2f8463fc2529b18","type":"artist","uuid":"df2ce576-dff2-440c-af6e-1461564172fc"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe669048a8a75762ed568b6218ac8d8f9db67e8d052f0345d79262a0b07ae9d07. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df2ce576-dff2-440c-af6e-1461564172fc.json and https://artists.proofprofile.net/proofs/artist/df2ce576-dff2-440c-af6e-1461564172fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:40:30Z
  text: {"copyright_id":"0xe669048a8a75762ed568b6218ac8d8f9db67e8d052f0345d79262a0b07ae9d07","name":"Black Sheriff","registered_at":"2026-06-15T03:52:57Z","symbol":"NIM0673627","token_address":"0x24e8384eb4d1bc47ee999fa9b2f8463fc2529b18","type":"artist","uuid":"df2ce576-dff2-440c-af6e-1461564172fc"}