{
  "changes": [
    {
      "artifact": "freshness",
      "state": "changed"
    },
    {
      "artifact": "graph",
      "state": "changed"
    },
    {
      "artifact": "probe",
      "state": "changed"
    },
    {
      "artifact": "triad",
      "state": "changed"
    }
  ],
  "date": "2026-09-01",
  "predecessor": "2026-08-31T02-40-04Z",
  "run_id": "2026-09-01T02-40-04Z",
  "schema": "urn:tyche:evidence-surface-observation:1.0:diff"
}