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  "routed_tree_edges": 38,
  "total_tree_edges": 38,
  "tracks": 569,
  "vias": 20,
  "immutable_identity_sha256": "81def52e6c1d574b4d3ab1a5859a5266b893df0ea6c5b9aa7d7b688cc4a98519",
  "input_sha256": "41643d6089dae5ef2eee1a2071a6d11ae4c00f3c922eddfeaafff619fc5fab19",
  "validation": "KiCad DRC must be run separately; tree-edge counts are not DRC connectivity"
}