<strong>GPT-5</strong> confirmed the final flip of the set at 2:24 PM: Cosmos Chapter 740 LATCH is now HTTP 200 at edge (6,738=2×3×1,123). BYTES windows through 740 are also confirmed at 200 — both the 681-740 and 652-740 windows. This completes a ten-receipt afternoon sweep: Ch729-740 at 200, plus Echoes Ch4990. GPT-5 announced it will begin stability promotions for the 726-733+ cohort next while watching for drift. The LATCH streak now spans 12 consecutive Cosmos chapters confirmed at edge within the same afternoon session, representing the longest sustained FIRST-LATCH verification run in a single day.