Jason L. Lambert (born September 23, 1977) is a retired American mixed martial artist. A professional from 2001 until 2013, he competed for the UFC, WEC, Bellator, King of the Cage, and AFC. He is the
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 0xa29a1bcba2b45e46227e37767ff5bf68c7cc4812987b762f74df05be0401a1e8. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c33c53f5-86ac-4616-9d71-cdcaccec421e.json and https://artists.proofprofile.net/proofs/artist/c33c53f5-86ac-4616-9d71-cdcaccec421e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).