Deterministic Replay
Replay Lab
Validate determinism with timeline replay and hash-diff inspection from real execution receipts. Re-run any past reconciliation, verify its outputs, and export the evidence.
What Replay Lab Does
Verify every run. Debug any mismatch. Prove the results.
Exact Replay
Re-run any historical reconciliation with the same data snapshot and rules configuration. Same inputs, guaranteed same outputs.
Hash Diff Inspection
Compare expected vs. observed SHA-256 hashes at every step in the execution timeline. Pinpoint exactly where and why drift occurred.
Timeline Visualization
Navigate the full execution DAG — match passes, rule evaluations, variance flags — as an interactive timeline with full context.
Audit Evidence Export
Export replay results as a signed, self-contained evidence bundle. Attach to audit packages or share with reviewers.
CLI Preview
Replay from the terminal
The Settler CLI makes any past run replayable. Pass a run ID and the CLI will reconstruct the execution, verify the hash chain, and confirm determinism.
Point-in-time replay
Any past run, reconstructed exactly
Determinism verified
Hash chain confirms identical output
Evidence bundle
Signed export ready for audit packages
Ready to replay a run?
Open the control-plane replay surface to inspect a specific run, or read the docs to learn how replay integrates with your CI pipeline.
Live Replay Review Surface
Queue of reconciliation runs available for replay inspection.
Review Queue
12 Pending reconciliations require human review.
Priority Queue
Evidence Viewer
Source A (ERP)
Source B (Bank)
Transaction ID
TX_99283811
Transaction ID
TX_99283811
Amount
500.00
Amount (Mismatch)
5,000.00
Currency
USD
Currency
USD
AI Decision Co-pilot
The discrepancy appears to be a decimal placement error (10x difference). Historically, manual overrides favor Source B for this vendor. Suggested action: Reconcile to Source B.