Automatic Cross-chain Protocol Pausing with Real-time Conformance Checking

The proliferation of diverse blockchain networks has intensified the demand for interoperability, but cross-chain bridges introduce significant security risks. This paper proposes a protocol protection framework for early incident detection and containment through a runtime transactions conformance checking pipeline. Deviations from expected behavior trigger a pausing mechanism, halting operations to prevent incorrect state propagation across blockchains. Our evaluation shows that anomalies can be detected and cross-chain asset transfers paused in less than 10 seconds, reducing attack exposure and preventing cascading failures. The results highlight how automated pausing is a critical safeguard for securing interoperability infrastructures and strengthening cross-chain ecosystems.