{"id":"message-queue-two-tier-offsets","text":"The message queue separates `current_offset` (advances on every `poll()`) from `committed_offset` (advances on explicit `commit()`), enabling consumer-chosen delivery semantics.","truth_value":"IN","source":"entries/2026/06/05/topic-consistency-models.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"message-queue-two-tier-offsets","truth_value":"IN","reason":"premise"}]}}