Christina Leonard
type: MusicGroup
popularity: 9
followers: 32
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe49ef2454bf6240976cf20a7eee015fd3f42b63409b18f1bd091e593919b869b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/65673893-60f1-4f39-a269-a36f068a7589.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/65673893-60f1-4f39-a269-a36f068a7589.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/65673893-60f1-4f39-a269-a36f068a7589
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe49ef2454bf6240976cf20a7eee015fd3f42b63409b18f1bd091e593919b869b","name":"Christina Leonard","registered_at":"2026-06-17T00:59:34Z","symbol":"NIM1231257","token_address":"0x297cfd565d71dc71fe9809788460fb34e7f94823","type":"artist","uuid":"65673893-60f1-4f39-a269-a36f068a7589"}
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 0xe49ef2454bf6240976cf20a7eee015fd3f42b63409b18f1bd091e593919b869b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/65673893-60f1-4f39-a269-a36f068a7589.json and https://artists.proofprofile.net/proofs/artist/65673893-60f1-4f39-a269-a36f068a7589.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xe49ef2454bf6240976cf20a7eee015fd3f42b63409b18f1bd091e593919b869b","name":"Christina Leonard","registered_at":"2026-06-17T00:59:34Z","symbol":"NIM1231257","token_address":"0x297cfd565d71dc71fe9809788460fb34e7f94823","type":"artist","uuid":"65673893-60f1-4f39-a269-a36f068a7589"}