Source evidence
Grounded document text
Decision
Evaluate a rule-pack question
Audit trail
Derivation and rule provenance
Open a fact to trace it back to source text.
Applicable rules in evaluation order.
Facts excluded from the case before any rule ran, and why — recorded on every receipt for the case, whichever question is asked.
Save the receipt, the receipt with its evidence, or a human-readable report.
A receipt pins its facts by hash rather than carrying them, so the receipt alone proves what was decided but cannot reproduce its own evidence. Receipt + facts bundles both and replays anywhere. In a deployment the fact store keeps that evidence; this demo's store is in memory and resets when the process does.