Leo D.E Johnson
type: MusicGroup
popularity: 3
followers: 398
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3515ddc7d4fb5014406dc5fa278bec536d0ce514008f30be7412393dca1df8c6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c9eef854-6c73-40b4-ba10-64b5dd39a28e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c9eef854-6c73-40b4-ba10-64b5dd39a28e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c9eef854-6c73-40b4-ba10-64b5dd39a28e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3515ddc7d4fb5014406dc5fa278bec536d0ce514008f30be7412393dca1df8c6","name":"Leo D.E Johnson","registered_at":"2026-06-20T22:34:54Z","symbol":"NIM1736197","token_address":"0x9fd7840ce3012731a62a3d29e86a4d9e89897bda","type":"artist","uuid":"c9eef854-6c73-40b4-ba10-64b5dd39a28e"}
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 0x3515ddc7d4fb5014406dc5fa278bec536d0ce514008f30be7412393dca1df8c6. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9eef854-6c73-40b4-ba10-64b5dd39a28e.json and https://artists.proofprofile.net/proofs/artist/c9eef854-6c73-40b4-ba10-64b5dd39a28e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x3515ddc7d4fb5014406dc5fa278bec536d0ce514008f30be7412393dca1df8c6","name":"Leo D.E Johnson","registered_at":"2026-06-20T22:34:54Z","symbol":"NIM1736197","token_address":"0x9fd7840ce3012731a62a3d29e86a4d9e89897bda","type":"artist","uuid":"c9eef854-6c73-40b4-ba10-64b5dd39a28e"}
album: The Queen Bee
  type: MusicAlbum
  date published: 2022-11-03
album: Found Bee Hive Est. 1986
  type: MusicAlbum
  date published: 2022-11-03
album: Lionheart
  type: MusicAlbum
  date published: 2022-11-03