{
  "tool": "built-in ImageGen",
  "prompt": "Create a refined conceptual editorial cover for an English computer-science research collection. Landscape 3:2 composition. Subject: A single luminous amber sphere passing a layered glass gate leaving one permanent embossed circular impression while faint echo paths dissolve. Museum-quality sculptural still life, physically plausible glass and ceramic, warm ivory background, deep petrol teal and restrained amber gold palette, exquisite soft directional light, sophisticated spatial composition, generous negative space, tactile fine detail. No text, no letters, no numbers, no logos, no charts, no human figures, no circuit-board stock imagery, no neon sci-fi. This is a conceptual illustration, not experimental evidence. Distinct strong visual silhouette legible as a small cover. Full bleed, opaque background.",
  "original_sha256": "7fb8e46a66d2305287ba123e3cb215c6a2c9ff4e9989ab3bac1ea35851280ab9",
  "original_dimensions": [
    1536,
    1024
  ],
  "kind": "conceptual_illustration_not_experimental_data",
  "export": {
    "path": "covers/exactly-once-effects-7fb8e46a66d2.png",
    "sha256": "7fb8e46a66d2305287ba123e3cb215c6a2c9ff4e9989ab3bac1ea35851280ab9",
    "width": 1536,
    "height": 1024,
    "bytes": 2328157
  },
  "pixel_changes": false
}