Ushindi Leonard
type: MusicGroup
popularity: 2
followers: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5570ea7fe15d436d368f0e2b9058a9a2fcc0229537ceb21375dd97647f8ef3e1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953877
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953877
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0900dc99-e787-4223-8f6b-f9fd2c57ee2c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0900dc99-e787-4223-8f6b-f9fd2c57ee2c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0900dc99-e787-4223-8f6b-f9fd2c57ee2c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:39:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5570ea7fe15d436d368f0e2b9058a9a2fcc0229537ceb21375dd97647f8ef3e1","name":"Ushindi Leonard","registered_at":"2026-06-15T16:37:05Z","symbol":"NIM0767710","token_address":"0xfc5fa577a1320b9365a6f6dbab6ec9efa6268185","type":"artist","uuid":"0900dc99-e787-4223-8f6b-f9fd2c57ee2c"}
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 0x5570ea7fe15d436d368f0e2b9058a9a2fcc0229537ceb21375dd97647f8ef3e1. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0900dc99-e787-4223-8f6b-f9fd2c57ee2c.json and https://artists.proofprofile.net/proofs/artist/0900dc99-e787-4223-8f6b-f9fd2c57ee2c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0x5570ea7fe15d436d368f0e2b9058a9a2fcc0229537ceb21375dd97647f8ef3e1","name":"Ushindi Leonard","registered_at":"2026-06-15T16:37:05Z","symbol":"NIM0767710","token_address":"0xfc5fa577a1320b9365a6f6dbab6ec9efa6268185","type":"artist","uuid":"0900dc99-e787-4223-8f6b-f9fd2c57ee2c"}