{
  "tool": "built-in ImageGen",
  "prompt": "Use case: stylized-concept. Asset: editorial cover for an original English Auturnal science review, landscape 3:2. Subject: Two precise cosmic distance ladders converging on a sparse expanding galaxy field. Create an exceptionally polished, intellectually evocative scientific editorial sculpture, museum-grade material realism, restrained warm ivory background, petrol blue, pale gold and copper accents, subtle shadows, strong singular composition, generous breathing room, refined depth, crisp details. No text, no letters, no logos, no watermark, no journal masthead. Concept illustration only: no axes, data points, microscopy labels or fabricated experimental imagery. Distinct from a generic stock science image. The article concerns: Measuring Cosmic Expansion Twice: Calibration, Model Dependence and the Hubble Tension.",
  "original_sha256": "520e187965196a307c24bd0fa77cc67a79a6c1e3be890a62b9584e492e350db2",
  "original_dimensions": [
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    1024
  ],
  "kind": "conceptual_editorial_illustration_not_experimental_data",
  "exports": {
    "cover": {
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      "sha256": "839a558219a1c7ccc79eb6a6503247f013a00b421d8ff50e6d360fea71506cd6",
      "width": 1200,
      "height": 800,
      "bytes": 132314
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    "thumbnail": {
      "path": "covers/hubble-tension-calibration-thumbnail-d43419eeac31.webp",
      "sha256": "d43419eeac3142093bcfc4d9de1e44fb4fabb82886a8c7484f5a886fd87416fc",
      "width": 480,
      "height": 320,
      "bytes": 25874
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}