{
  "prepared": "2026-09-19",
  "source_revision": "58cfbde8be41600d27a7198e0f491a48645e3e14",
  "source_branch": "map-first-experiment",
  "source_not_on_default_main": true,
  "artifact": "Original Stratus challenge/comparison prototype with synthetic preview",
  "appearance": "Original UI and fixture, inside a labeled capture frame; game terrain and item/building artwork omitted, external fonts replaced by existing local fallbacks. Original terrain credit and warning remain visible.",
  "observed": [
    "Four original interface states rendered",
    "Genuine 33.08-second navigation recording; initialization trimmed, no internal cuts or speed changes",
    "Challenge inspection, built-in preview, fixture-event advancement, factory camera, older revision and comparison",
    "Zero page JavaScript errors; backend requests intercepted, no external requests forwarded"
  ],
  "source_preserved": "Four product source files, the existing fixture and sixteen design-system files matched their source hashes.",
  "claim_boundary": "All model names, geometry, actions, rates and apparent game-measured results in this interface study are synthetic. Rectangles and routes do not establish valid game placement, connections or production.",
  "not_established": [
    "A game run, backend campaign or model contest",
    "Arbitrary model selection or in-game arrival",
    "Whole-platform readiness, causal repair, general factory optimality or autonomous progression"
  ],
  "separate_evidence": "measurement-case.json describes game measurements from 9 September 2026 onward, not this interface fixture.",
  "later_use": "Earlier builds of this interface, from before the captured revision, were used on 12 and 13 September 2026 to start real comparisons between two AI models; their results are summarized in measurement-case.json. Independent acceptance testing of the interface was not completed.",
  "retained_renderer_reference": {
    "label": "renderer pin ba8b915",
    "repository": "https://github.com/valentinps/satisfactorymap",
    "revision": "ba8b9151cb961f80634d2d8560c75ff7cc4279d8",
    "scope": "Original prototype label retained with the terrain credit; game artwork is omitted. This capture does not establish completed renderer integration."
  },
  "amended": [
    {
      "date": "2026-09-23",
      "change": "Added later_use and updated separate_evidence. The capture and every observation above are unchanged."
    }
  ]
}