{
  "id": "replace-with-unique-experiment-id",
  "supersedes": null,
  "claim_id": "physical_refinement",
  "source_commit": "replace-with-full-git-sha",
  "question": "State one scoped claim or obligation",
  "assumptions": [],
  "falsifier": "State an explicit counterexample shape",
  "command": "Exact replay command",
  "environment": {},
  "outcome": "UNKNOWN",
  "exit_code": null,
  "evidence": [],
  "source_hashes": {},
  "observation": "Public, reviewable result only",
  "limitations": [],
  "next_experiment": "Smallest decisive next check"
}