Status: IN
Stream processing achieves its correctness guarantees through two coordinated forward-only mechanisms: state ratchets prevent regression (windows never reopen, cursors never reverse), and dedup retention outlives finalization (2x allowed lateness), ensuring the system never double-counts events and never revises emitted results.
Dedup-finalization coordination and forward-only state ratchets are complementary mechanisms that together prevent both duplication and revision
Depends on (SL): dedup-and-finalization-are-coordinated, forward-only-design-prevents-regression-and-maximizes-progress