{
  "schema": 1,
  "asset_role": "Study Commons Daily Read hero",
  "slug": "why-airplanes-leave-white-trails",
  "generator": "QwenImage21Pipeline",
  "diffusers_version": "0.37.0.dev0",
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  "scheduler": "FlowMatchEulerDiscreteScheduler",
  "torch_dtype": "bfloat16",
  "profile": "cinematic",
  "prompt": "Wide cinematic educational illustration of a modern twin-engine passenger jet flying at cruise altitude through a cold deep-blue upper atmosphere, seen from a slightly rear three-quarter angle. From both engines, the exhaust region begins nearly transparent immediately behind the aircraft and then becomes two crisp white condensation trails made of tiny ice crystals, gradually merging and spreading farther back into a thin wispy ice-cloud texture. Keep the aircraft generic with no airline markings. Bright high-altitude sunlight, subtle atmospheric haze, physically plausible scale and perspective, clean science-magazine realism, clearly illustrative rather than a stock photograph. Emphasize the cause chain visually through the continuous transition from engine exhaust to visible white ice-crystal contrail, without text, labels, arrows, diagrams, logos, brands, or watermark. Balanced 16:9 hero composition with ample blue sky.",
  "negative_prompt": "text, captions, labels, arrows, watermark, logo, brand, airline livery, airline name, people, airport, runway, city skyline, black smoke, sooty exhaust, fire, engine flames, chemtrail conspiracy imagery, fantasy clouds, multiple aircraft, malformed wings, extra engines, distorted fuselage, oversaturated colors, stock photo watermark",
  "seed": 2026092702,
  "width": 1280,
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  "num_inference_steps": 20,
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      "adapter_name": "lenovo_ultrareal"
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  "reference_images": [],
  "gpu": "NVIDIA GeForce RTX 4090",
  "generated_at": "2026-09-27T09:36:00-04:00",
  "output_png": "study_contrail_hero_20260927_seed2026092702.png",
  "output_png_sha256": "0fe88f185a17b7bb14cf084e2a63702134787a1a6e3c672127299ae76c431177",
  "generation_seconds": 39.044,
  "requested_width": 1280,
  "requested_height": 720,
  "actual_width": 1280,
  "actual_height": 704,
  "provenance_note": "Generation parameters and cryptographic hashes retained by Study Commons for reproducibility and provenance. AI generation does not itself guarantee absence of third-party rights.",
  "postprocess": {
    "format": "AVIF",
    "encoder": "ffmpeg libaom-av1",
    "crf": 30,
    "pix_fmt": "yuv420p",
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}