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
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
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`.