Methodology
Make the limits of an answer as inspectable as the answer.
P4L separates source facts, evidence records and interpretation; uses stable IDs and update history; and treats proposed policy, program participation and research funding differently from demonstrated clinical outcomes.
Signal scoring
Priority = impact 25% + immediacy 20% + P4L relevance 25% + novelty 10% + adoption leverage 20%, normalized to 100.
Evidence records
Evidence Explorer stores the exact claim supported, record type, authority, directness, recency, limitations and decision relevance. A high-quality source cannot support a broader claim than its design or scope permits.
Proof control
Material public claims receive immutable IDs, last-verified dates, fingerprints, version history and correction state. P4L inferences are labeled separately from sourced facts.
Change detection
The backend implementation pack fingerprints monitored sources and routes material semantic changes to downstream claims, signals, graph relationships, briefs and diagnostic assumptions for review.