{
  "schema": "arthaus-3d-construction-replay-0.1",
  "piece": "vincent-van-gogh",
  "title": "A Beacon Against the Blue",
  "stroke_count": 16366,
  "input_hashes": {
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  "code_hashes": {
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  "gpu": {
    "GL_RENDERER": "NVIDIA GeForce GTX 1080 Ti/PCIe/SSE2",
    "GL_VENDOR": "NVIDIA Corporation",
    "GL_VERSION": "3.3.0 NVIDIA 560.94"
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  "mesh_vertices": 98945,
  "mesh_triangles": 196608,
  "mesh_method": "GPU-rasterized indexed canvas mesh; per-frame vertex displacement from the currently deposited float height texture, and updated height-derived normals.",
  "playback": "Frame0 unpainted stored ground; first120 marks individually; remaining marks processed sequentially in batches; final4seconds hold. No omitted, reordered or invented marks; no image crossfade.",
  "fps": 30,
  "frames": 900,
  "seconds": 30,
  "material": "Same declared additive footprint loading as material probe; dielectric roughness .64; height assumed, not measured.",
  "marker": "First120 marks have an amber locator matching the most recent stored footprint; it is a display cue, not paint or physical brush motion.",
  "physical_hand_simulated": false,
  "new_model_decisions_generated": false,
  "historical_material_validated": false
}