{"id":"single-threaded-by-design","text":"`BTree` has zero synchronization primitives; the sibling chain, split logic, and page allocation are correct only because no concurrent reader or writer can observe intermediate states","truth_value":"IN","source":"entries/2026/05/29/topic-sibling-pointer-maintenance.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"single-threaded-by-design","truth_value":"IN","reason":"premise"}]}}