When debugging a ZKP verifier, make sure to keep checking not just that the proof verifies on valid inputs, but also that the proof verification returns an error on invalid inputs (or with nonsensical tweaks to the verification mechanism).

Absolutely! One of the most common pitfalls in debugging zero-knowledge proof verifiers is overlooking the error handling for invalid or tampered inputs. Ensuring your verifier catches these cases robustly fortifies the system against potential vulnerabilities and unexpected behaviors.