{
  "version": "cubic-lattice-reference-v1",
  "source": {
    "url": "https://raw.githubusercontent.com/knotinfo-org/assets/main/knotinfo_data_complete.xls.zip",
    "documentation": "https://linkinfo.knotinfo.org/descriptions/grid_notation.html",
    "workbookSha256": "f4de747845b6432636c49e2dfa84b1c8d3bab681ee12b27402898cb3e4883be0",
    "sheet": "sample_dat",
    "columnsRead": {
      "name": 0,
      "crossing_number": 28,
      "grid_notation": 230
    },
    "labelRole": "reference/evaluation metadata only; never search features"
  },
  "scope": "Unknot and prime reference types through 12 crossings; composite coverage deferred; mirrors generated separately.",
  "records": 2978,
  "primeRecords": 2977,
  "counts": {
    "0": 1,
    "3": 1,
    "4": 1,
    "5": 2,
    "6": 3,
    "7": 7,
    "8": 21,
    "9": 49,
    "10": 165,
    "11": 552,
    "12": 2176
  },
  "geometry": "Exact closed self-avoiding integer polygons; vertical grid strands lifted one lattice unit above horizontal strands.",
  "edgeRange": [
    4,
    200
  ],
  "allEmbedded": true,
  "allMirrorsEmbedded": true,
  "searchLabelsRemoved": true,
  "uniqueLiteralEmbeddings": 2978,
  "classificationResults": 0,
  "claim": "A validated reference corpus, not successful classification.",
  "inputLimit": "Crossing label bounds the reference knot type, not lattice edge count or intermediate projection complexity.",
  "independentAudit": {
    "verified": true,
    "references": 2978,
    "unitEdgesAudited": 424684,
    "method": "Python exact pairwise intersections of nonadjacent long-axis segments"
  }
}