Barbara Figueroa is an American chef who was best known for her work at the Hunt Club, and her restaurant B. Figueroa. She won the James Beard Foundation Award for Best Northwest Chef in 1992. Career
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 0x783d03c21f480636e5df0247fd316d6b62ad4bc5bb55093eef8e683f47e2cdd3. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4ce4582-7152-4e29-b157-1dae8809defa.json and https://artists.proofprofile.net/proofs/artist/c4ce4582-7152-4e29-b157-1dae8809defa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).