{"id":"derived-systems-are-position-tracked","text":"Every `DerivedSystem` in the unbundled database tracks a `position` cursor indicating how far through the CDC log it has consumed, enabling independent catch-up and ensuring consumers can resume from where they left off","truth_value":"IN","source":"entries/2026/05/29/topic-ddia-ch12-unbundling.md","source_url":"","source_hash":"","justifications":[],"dependents":["derived-systems-maintain-consistency-when-position-durable"],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"derived-systems-are-position-tracked","truth_value":"IN","reason":"premise"}]}}