{
  "number": 317,
  "date": "2026-09-24",
  "title": "Source-qualified600 rectangles carried by17K",
  "question": "Do both recorded17K transports preserve the full600 rectangle and how does it meetC287?",
  "authorization": "User authorized next10 bounded steps C314–C323; next question reassessed after each completed result.",
  "scope": "Mirror/529; regular Gears Noah/Shem/Flood only; SP companion local. Fixed source inputs, no canonical/graph changes."
}