{
  "number": 361,
  "date": "2026-09-24",
  "title": "Shem lifespan rectangle and squared E endpoint transport",
  "question": "How do the600 and650 branches join the actual Shem biographies, and is the1250 endpoint span a translated squared-E comparison?",
  "authorization": "User authorized next10 bounded steps C354–C363; 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."
}