Problem
Binary Tests Fail Communities
Most point‑of‑use toxin tests return a simple positive/negative result. They don't tell a harvester, a regulator, or a tribal monitoring program how much to trust that result under field conditions. No confidence scoring. No uncertainty quantification. No immutable audit trail for regulatory decisions.
Solution
Certainty Engineering for Seafood Safety
CERTUS‑TOXIN Engine — four-dimensional epistemic scoring (Signal Confidence 35%, Corroboration 30%, Temporal Freshness 20%, Matrix Consistency 15%) with quantified Uncertainty Mass. Every test result cryptographically sealed via Sovereign Trace Protocol. Offline‑first PWA. UNDRIP Article 31 data sovereignty.