{
  "schema": "studycommons.hero.provenance.v2",
  "asset_role": "Study Commons public Daily Read hero",
  "slug": "velociraptor-feathers",
  "generation_id": "img-9b70f53ec5743431402725f1",
  "generator": "QwenImage21Pipeline",
  "model": "Qwen/Qwen-Image-2.1-Turbo",
  "model_revision": "fc13ba1986fcb905854dc8de2f52eee395f49b5b",
  "model_license": "Qwen Research License, non-commercial research/evaluation only; commercial use requires separate permission",
  "model_index_sha256": "97e2febeb19d93cb41fa44807cde8bd42757950b5dffeacdb0331fb2d390cf20",
  "checkpoint_sha256": "37230cd77d377c0be0acc06d628fd8a6e978e23eb2c530b73fa98df54ef62557",
  "renderer_source_sha256": "18b5d04715eadcb1d3672ba2b4f1af5da95fb9f8ebfdea97b3add250b08712c9",
  "prompt": "Scientifically grounded museum-quality paleoart of Velociraptor mongoliensis, a small turkey-sized non-avian dromaeosaur walking on a dry Cretaceous Mongolian floodplain. The animal has a birdlike feathered body, distinctly LONG PENNACEOUS VANED FEATHERS forming full wing-like fans along BOTH FOREARMS, thick birdlike plumage over upper arms, narrow elongated feathered tail, correct two hind legs and recognizable enlarged raised sickle claw on each second toe. Forelimb wing feathers must be obviously broad flattened overlapping flight feathers, not mere fuzzy mammal fur or bare clawed arms. Plausible natural proportions, slender muzzle, subdued earthy coloration, bright soft daylight, documentary scientific illustration aesthetic. NO naked scaly Jurassic Park raptor, no extra limbs, no text, labels, signs, arrows, cartoons, logos, infographics, watermarks. Wide landscape 16:9 hero only, not a technical skeletal diagram.",
  "prompt_sha256": "bdf7d52ea1d601702271c37b2c924d843a81b9c0ae4819dee39da3dce8c91f0f",
  "negative_prompt": "",
  "seed": 1957318407,
  "width": 1312,
  "height": 736,
  "num_inference_steps": 8,
  "true_cfg_scale": 1.0,
  "scheduler": "FlowMatchEulerDiscreteScheduler",
  "sampling": "explicit-checkpoint-8-sigma",
  "sample_sigmas": [
    1.0,
    0.978453,
    0.95418,
    0.926626,
    0.89508,
    0.845148,
    0.704534,
    0.414568
  ],
  "generator_device": "cpu",
  "generator_algorithm": "torch.Generator('cpu').manual_seed(seed)",
  "torch_dtype": "bfloat16",
  "cpu_offload": "model",
  "use_kv_cache": true,
  "vae_tiling": true,
  "lora": null,
  "reference_images": [],
  "gpu": "NVIDIA CUDA (hardware-specific machine details withheld)",
  "runtime": {
    "torch": "2.14.0+cu130",
    "diffusers": "0.41.0.dev0",
    "transformers": "5.17.0",
    "cuda": "13.0"
  },
  "job_completed_at": "2026-10-14T11:51:17.123799+00:00",
  "output_png_sha256": "9b70f53ec5743431402725f116eaceaad020390b1d8390b4102a58a43724977b",
  "output_png_dimensions": [
    1312,
    736
  ],
  "postprocess": {
    "format": "AVIF",
    "ffmpeg_version": "ffmpeg version 6.1.1-3ubuntu5",
    "filter": "scale=1280:720:force_original_aspect_ratio=increase:flags=lanczos,crop=1280:720",
    "encoder": "libaom-av1",
    "still_picture": 1,
    "crf": 7,
    "bitrate": "0",
    "cpu_used": 6,
    "pix_fmt": "yuv420p",
    "frames": 1,
    "source_png_sha256": "9b70f53ec5743431402725f116eaceaad020390b1d8390b4102a58a43724977b",
    "output_avif_sha256": "7d2231386307ae82b355338dfe93172644d3de66c1fe814884e4f6e84ca87c65",
    "output_avif_width": 1280,
    "output_avif_height": 720,
    "output_avif_bytes": 208082
  },
  "reproduce": {
    "recipe": "QwenImage21Pipeline.from_pretrained(model_path, dtype=torch.bfloat16); enable_model_cpu_offload(); vae.enable_tiling(); pipeline(prompt=prompt, width=width, height=height, true_cfg_scale=1.0, num_inference_steps=8, sigmas=sample_sigmas, use_kv_cache=True, generator=torch.Generator('cpu').manual_seed(seed)); encode PNG to AVIF using postprocess fields",
    "model_source": "Hugging Face model ID and exact model_revision above, subject to the stated license",
    "verification": "Compare generated image and encoded AVIF with the corresponding SHA-256 values above. Pixel-identical results are not guaranteed across devices or software builds."
  },
  "provenance_note": "This is an exact generation-parameter record and cryptographic integrity chain, not a legal ownership certificate or guarantee of third-party rights. Full private machine/job metadata is excluded."
}