Kevin Paul Dupont (born January 11, 1953) is an American sports journalist. During his career, Dupont has worked for the Boston Herald, The New York Times, and The Boston Globe. While with The Boston
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 0x47d8131a951dba2d6258c05d3f6052b803a0444010a44abd48f7b3f70ee3a939. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2480252a-fe76-4257-b5d0-625e7b0c4a09.json and https://artists.proofprofile.net/proofs/artist/2480252a-fe76-4257-b5d0-625e7b0c4a09.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).