David Lucas
type: MusicGroup
description: David Lucas is the name of: Sports David Lucas (cricketer) (born 1978), English cricketer David Lucas (footballer) (born 1977), English footballer David Lucas (handballer), Australian handballer;
popularity: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe02cfc846829d7d2a75285a3abcac7eca086621b1911070ee40bedb1ae19192c
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/4ceb6040-cd0d-44f9-bb42-b469231318fc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4ceb6040-cd0d-44f9-bb42-b469231318fc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4ceb6040-cd0d-44f9-bb42-b469231318fc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe02cfc846829d7d2a75285a3abcac7eca086621b1911070ee40bedb1ae19192c","name":"David Lucas","registered_at":"2026-06-16T16:22:32Z","symbol":"NIM1107914","token_address":"0x60f1661fb3f6f2fea989b58fe923e7fdad6a69d4","type":"artist","uuid":"4ceb6040-cd0d-44f9-bb42-b469231318fc"}
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 0xe02cfc846829d7d2a75285a3abcac7eca086621b1911070ee40bedb1ae19192c. 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/4ceb6040-cd0d-44f9-bb42-b469231318fc.json and https://artists.proofprofile.net/proofs/artist/4ceb6040-cd0d-44f9-bb42-b469231318fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xe02cfc846829d7d2a75285a3abcac7eca086621b1911070ee40bedb1ae19192c","name":"David Lucas","registered_at":"2026-06-16T16:22:32Z","symbol":"NIM1107914","token_address":"0x60f1661fb3f6f2fea989b58fe923e7fdad6a69d4","type":"artist","uuid":"4ceb6040-cd0d-44f9-bb42-b469231318fc"}