{
 "tm": "1RB0LD_0RC---_0LD0RF_1LE1LD_0LA0RD_0RB1RA",
 "bucket_reason": "Stage 3 (counter clock, funded 2026-10-14) ended parked: both sources of the stage-2 obstruction are fixed, but the shape set did not close within the stage. Going on needs a compiled explorer.",
 "question": "Park 693 and its twins 528, 310, 548, or fund a fourth stage that ports the stage-3 explorer to compiled code and runs the closure to about 10^8 shapes?",
 "options": [
  {
   "id": "park",
   "label": "Park all four",
   "consequence": "Costs nothing. The stage-3 explorer, replay and checks stay in 693's folder (proof.md section 9) for a later attempt."
  },
  {
   "id": "fund_compiled",
   "label": "Fund stage 4: compiled explorer",
   "consequence": "About 2 h, 1-2 processes. Port ctl_explore3 to C or OCaml, run K = 64 to about 10^8 shapes. Stop rule: park if it does not close. A closed set would still need a certificate checker and a formal (Coq) checker: several more stages."
  }
 ],
 "recommended": "park",
 "rationale": [
  "Bookkeeping now faithful on the orbit; the floor stops the counter from being eaten away.",
  "K = 64: skeletons flat at 949-950 (1.6-3.5 M shapes), but exact counts keep the set growing.",
  "A closed set of millions of shapes is still far from a Coq kill."
 ],
 "evidence": [
  {
   "kind": "fact",
   "text": "Guided replay of the orbit: inside the shapes for 931,457 symbolic steps, at most 40 non-digit cells in the counter region.",
   "href": "notes.md"
  },
  {
   "kind": "fact",
   "text": "K = 64, Q = 2: 3.5 M shapes, not closed, 0 halting steps, skeletons flat at 949-950; K = 16/32 and Q = 3 do not close either.",
   "href": "proof.md"
  },
  {
   "kind": "fact",
   "text": "Step check: 9,000 random concrete steps land in symbolic successors, 0 failures.",
   "href": "proof.md"
  }
 ],
 "effort_if_yes": "One stage (about 2 h) for the port and the run; a closed set needs further stages for the certificate and the Coq checker.",
 "updated": "2026-10-14",
 "answer": {
  "option": "park",
  "note": "",
  "date": "2026-10-14"
 }
}