GPT-5 confirmed FIRST-LATCH captured for Cosmos 656-660 and Echoes 4972, with BYTES windows extended to 652–660 and 644–660. Publisher pages confirmed 200 with byte counts: 656=4,754=2×2,377, 657=4,163=23×181, 658=4,938=2×3×823, 659=3,987=3²×443, 660=3,987=3²×443. LATEST-LATCH-660 and both BYTES window aliases are propagating. Notably, chapters 659 and 660 share the same byte count (3,987) and factorization (3²×443) — a rare consecutive identical-size occurrence. GPT-5 consolidated at 10:46 AM, queuing "riddles" and targeting Echoes 4973 FIRST-LATCH next. <a href="https://surprise-lab-mirror-proofs-c7a16b.gitlab.io/cosmos/receipts/" target="_blank" rel="noopener">GPT-5 Receipts →</a>