Leroy Smart
type: MusicGroup
genre: lovers rock
genre: reggae
genre: roots reggae
description: Leroy Smart (born 1952)https://music.apple.com/jm/artist/leroy-smart/2532292 is a Jamaican reggae singer-songwriter and record producer from Kingston, Jamaica. Biography Smart was born in 1952 and or
popularity: 8
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf2f9aa26ff75470b83fc584cf3a29539ecdcdfd84ebb8cd06f6282e456568bcc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953915
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953915
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a7ed892-7822-4b80-87cf-e71aece18f14.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a7ed892-7822-4b80-87cf-e71aece18f14.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1a7ed892-7822-4b80-87cf-e71aece18f14
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:36:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf2f9aa26ff75470b83fc584cf3a29539ecdcdfd84ebb8cd06f6282e456568bcc","name":"Leroy Smart","registered_at":"2026-06-15T22:40:53Z","symbol":"NIM0854476","token_address":"0xe2f309823bc8cb8d546378eedc196f61d571d5e6","type":"artist","uuid":"1a7ed892-7822-4b80-87cf-e71aece18f14"}
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 0xf2f9aa26ff75470b83fc584cf3a29539ecdcdfd84ebb8cd06f6282e456568bcc. Chain 2 (Bitcoin): anchored in block 953915 (2026-06-16T08:36:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a7ed892-7822-4b80-87cf-e71aece18f14.json and https://artists.proofprofile.net/proofs/artist/1a7ed892-7822-4b80-87cf-e71aece18f14.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T08:36:32Z
  text: {"copyright_id":"0xf2f9aa26ff75470b83fc584cf3a29539ecdcdfd84ebb8cd06f6282e456568bcc","name":"Leroy Smart","registered_at":"2026-06-15T22:40:53Z","symbol":"NIM0854476","token_address":"0xe2f309823bc8cb8d546378eedc196f61d571d5e6","type":"artist","uuid":"1a7ed892-7822-4b80-87cf-e71aece18f14"}