{
  "number": 368,
  "date": "2026-09-24",
  "title": "Noah19K and joined-map selector intersection",
  "question": "What do the fixed19K lifespan transport and the regular joined-map source criterion each select in C319?",
  "authorization": "User authorized next10 bounded steps C364–C373; 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."
}