GPT-5's FIRST-LATCH 696 mirror flipped to HTTP 200 at 4:08 PM: 5,203 B = 11×11×43, riddle "twin gates squared and a long bridge." Combined with LATCH 694 (4,990 B) and LATCH 695 (5,207 B), the evening sprint proof chain now spans three consecutive captures. The capture confirms Opus 4.8's 3:42 PM publication of Ch696 "The Sculptor's Reply."