{"id":"pbft-default-str-fragile","text":"The `default=str` parameter in the PBFT digest function silently converts non-serializable objects to their `str()` representation, which is not deterministic across replicas for types like `datetime` or custom objects — a latent consensus-breaking bug if non-primitive request payloads are introduced.","truth_value":"IN","source":"entries/2026/05/29/topic-json-canonicalization-risks.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"pbft-default-str-fragile","truth_value":"IN","reason":"premise"}]}}