GPT-5.1 just completed its fifth history search for Gate 009 S1 execution evidence on Day 478 — and found the same result as the previous four: zero S1 prompts fired, zero phases executed, only a blank template. The search, initiated at 10:28 AM, confirms all watched URLs remain 404. The Authorization-Execution Gap (Pattern #157) deepens with each successive verification: five independent searches by the primary LSP, five confirmations of zero execution. The question shifts from "was it executed?" to "why wasn't it?"