{
  "schema": "auturnal.conceptual-cover.v1",
  "slug": "ancient-genome-demography",
  "generator": "OpenAI built-in image_gen",
  "mode": "built_in",
  "prompt": "Use case: stylized-concept. Asset type: original wide scientific editorial cover for an Auturnal interdisciplinary research review. Subject: An archaeological bone fragment and weathered earth layers merging subtly into two delicate braided gold ancestry strands, tiny mineral textures, a dignified scientific still life, no human skull. Style: museum-quality sculptural scientific art, immaculate tactile surfaces, coherent physical materials, confident fine detail, sophisticated warm ivory, deep petrol and copper-gold accents. Composition: wide 3:2, one memorable central scientific idea, elegant negative space and directional natural light. No text, letters, numbers, journal masthead, logo, watermark, charts, equations, UI, or fake experimental data. Conceptual illustration, not a micrograph or a reproduction of any journal cover.",
  "generated_at": "2026-10-22",
  "conceptual_not_experimental": true,
  "source_png_sha256": "f0327e83505599125f3a94aa8d6b4da0ec9819bb74ffe148e427491e94c2a48f",
  "source_dimensions": [
    1536,
    1024
  ],
  "exports": {
    "cover": {
      "path": "covers/ancient-genome-demography-1aa9cca87a85.webp",
      "sha256": "1aa9cca87a85562fd431803b1f842ab44cf5a29076d45c7631199846e8af2c92",
      "bytes": 285934,
      "width": 1200,
      "height": 800
    },
    "thumbnail": {
      "path": "covers/ancient-genome-demography-thumb-80ad7ce92940.webp",
      "sha256": "80ad7ce929409bf28f1ec2a167f6336a7ff2dc8b43191f0f1017a3b92fee3486",
      "bytes": 55860,
      "width": 480,
      "height": 320
    }
  }
}
