{
  "number": 290,
  "title": "Dilation of the four-node source pattern",
  "slug": "Four_Node_Dilation_Compatibility",
  "question": "Does25/23 act on the whole admitted source pattern and its seasonal pairs?",
  "date": "2026-09-24",
  "scope": "Mirror and529; regular Gears Noah/Shem/Flood only; no canonical or graph changes",
  "source_qualifications": "Retain phase ancestry, profile/state/frame and event identity; generated coordinates do not add events.",
  "research_authorization": "Sequential batch through C310; reassess after every step"
}