Evidence
Auditor-ready proof that every change was approved, reviewed, and safe.
Ledger integrity
Cryptographic proof that no audit row has been altered. Binary VERIFIED / FAILED indicator backed by the hash-chain check on audit_decisions and the signed-checkpoint chain on audit_attestations.
Evidence pack
One-click PDF + JSON bundle for a given window, mapped to SOC 2 CC8.1. Download and hand to an auditor.
Evidence graph
Cross-system chain: every decision linked to its PR, deploy, change ticket, and incident. Useful for replay and for showing the full lineage of a specific decision.