OpenChainGraph Suite · ART-488 · Model Risk Management
Model Replication Diff
Independently recomputes a model's reported outputs from its declared specification (transform, intercept, coefficients) and stated inputs, then diffs the recomputation against the model's own reported outputs within your tolerance. Returns replicated or not-replicated, with the failing segment named. If the declared specification can't be recomputed as stated, the honest result is not-replicable-as-specified — not a forced pass or fail. Step 1 of the Model Validation Replication Cycle, where anything other than a successful replication puts the cycle on a §27 hold gate.
🔒 All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.
⚠ This tool recomputes and diffs only. It never opines on conceptual soundness, assumption reasonableness, or fitness for use — that judgment belongs in a validator's own approval record.
Declared Model Specification
Spec version
Spec as-of date
Transform
Intercept
Coefficients (JSON object: feature name → weight)
Absolute tolerance (optional)
Relative tolerance (optional)
Records (JSON array: id, segment, features, reported_value)