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  "question": "Explore an elongated cloud. Do local queries and jumps cross different numbers of edges?",
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    "url": "https://earthquake.usgs.gov/fdsnws/event/1/",
    "license": "Public domain (USGS)",
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  "limitations": "Planar triangulation after projection; not geodesic Delaunay. Lines, roads, coasts and gaps are not barriers.",
  "version": "v12-20261005",
  "inputCount": 150,
  "uniqueCount": 150,
  "duplicates": {
    "policy": "Exact binary-coordinate equality; the core retains the first occurrence. No epsilon merging.",
    "removed": 0,
    "groups": []
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  "quantization": "None added. Frozen decimal literals round-trip to their original binary64 values.",
  "frame": "Four artificial square corners are added by the unchanged core.",
  "seedPolicy": "Coordinates are fixed. The interface seed affects hierarchy, fixed sample, walks and query paths.",
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}