{
  "number": 326,
  "date": "2026-09-24",
  "title": "Four-endpoint overlap versus bilateralcompletion",
  "question": "Does the source-admitted fourthendpoint make the460+40=500chains equivalent toFile09bilateralcompletion?",
  "authorization": "User authorized next10 bounded steps C324–C333; 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."
}