{"id":"stdlib-only-no-external-deps","text":"Solutions import only from Python's standard library (primarily `typing` and `unittest`) — no external or third-party dependencies are used.","truth_value":"IN","source":"entries/2026/06/06/binary-prefix-divisible-by-5-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"stdlib-only-no-external-deps","truth_value":"IN","reason":"premise"}]}}