{
 "schema_version": 1,
 "variant": "square",
 "n": 13,
 "frame": "unit-square",
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 "value": {
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  "fraction": "54037661853/2000000000000",
  "published": "A = .02702+",
  "published_decimal": "0.02702",
  "published_lower_bound": true,
  "exact_text": null,
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  "minimal_polynomial": null
 },
 "status": "record",
 "page_relation": "OK",
 "credit": {
  "found": {
   "name": "Peter Karpov",
   "date": "August 2011"
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  "trivial": false
 },
 "coordinates_source": {
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  "ref": "spiralulam/heilbronn config_n13.json",
  "note": "Karpov (unpublished)"
 },
 "coordinates_reconstructed": false,
 "symmetry": {
  "label": "Not symmetric"
 },
 "notes": [],
 "changelog": [],
 "references": [
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 ],
 "verify": {
  "n": 13,
  "triples_checked": 286,
  "value": "0.0270188309265",
  "value_fraction": "54037661853/2000000000000",
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  "num_min_ties": 1,
  "feasible": true,
  "violations": [],
  "hull_vertex_count": null
 }
}