{"id":"dedup-is-global-not-per-ad","text":"The `seen_events` dedup registry keys on `event_id` alone; the same event ID arriving for different `ad_id`s will be deduplicated.","truth_value":"OUT","source":"entries/2026/06/05/ad-click-event-aggregation-click_aggregator.md","source_url":"","source_hash":"","justifications":[],"dependents":["forward-only-stream-processing-is-exactly-once"],"metadata":{"_retracted":true},"created_at":"","updated_at":"2026-06-17T14:30:15+00:00","reviewed_at":"","verified_at":"","retracted_at":"2026-06-17T14:30:15+00:00","explanation":{"steps":[{"node":"dedup-is-global-not-per-ad","truth_value":"OUT","reason":"retracted premise"}]}}