Discovery without governance is speculation. ARDA's governance stack ensures that every claim produced by a discovery campaign is traceable from raw data to final output. The Truth Dial controls how much autonomy the engine has: at Explore level, ARDA surfaces candidate structure freely; at Validate, claims must survive holdout and permutation controls; at Publish, the full negative-control suite runs before anything is presented.
The Evidence Ledger hashes every data snapshot, intermediate result, control outcome, and final claim. This means any reviewer—internal or external—can verify the provenance chain without re-running the campaign. For pharmaceutical submissions, regulatory filings, and peer-reviewed publications, this traceability is not a convenience—it is a requirement.
Negative Controls stress-test discovered structure before it reaches human reviewers. Permutation tests check whether the relationship holds when key variables are shuffled. Holdout tests verify generalization beyond the training data. Intervention-style probes in Causal mode test whether causal claims survive when the system is perturbed. Claims that fail controls are flagged or suppressed—they do not reach the ledger as validated findings.