{"id":"btree-page-io-has-no-defensive-checks","text":"The B-tree's page I/O layer lacks defensive validation at every stage: deserialization accepts any bytes, leaf-finding doesn't verify node types, and page writes silently truncate oversized data — a single corrupted byte can cascade through the tree undetected.","truth_value":"OUT","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["btree-deserialize-no-validation","find-leaf-no-type-check","write-page-silently-truncates"],"outlist":[],"label":"Three independent observations at different stages of the page lifecycle (read, navigate, write) reveal a consistent absence of safety checks"}],"dependents":["btree-structural-integrity-silently-erodes"],"metadata":{"last_reviewed":"2026-05-30T09:01:17","review_result":"pass"},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"btree-page-io-has-no-defensive-checks","truth_value":"OUT","reason":"SL justification invalid","failed_antecedents":["btree-deserialize-no-validation"],"label":"Three independent observations at different stages of the page lifecycle (read, navigate, write) reveal a consistent absence of safety checks"}]}}