{
  "generated_utc": "2026-06-03T20:57:48.410517+00:00",
  "ifc_path": "data/bim/public_fixtures/Building-Architecture.ifc",
  "source": {
    "source_type": "public_open_data_download",
    "source_repo": "buildingSMART/Sample-Test-Files",
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    "source_url": "https://raw.githubusercontent.com/buildingSMART/Sample-Test-Files/main/IFC%204.0.2.1%20%28IFC%204%29/PCERT-Sample-Scene/Building-Architecture.ifc",
    "license": "buildingSMART Sample-Test-Files, CC BY 4.0",
    "downloaded_bytes": 225635,
    "github_tree_size_bytes": 225635
  },
  "parser_mode": "regex_step_text_fallback",
  "claim_boundary": "Portfolio MVP; proxy AABB coordination workflow proof, not production BIM geometry signoff.",
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