{
  "@context": {
    "@language": "en",
    "@vocab": "https://schema.org/",
    "citeAs": "cr:citeAs",
    "column": "cr:column",
    "conformsTo": "dct:conformsTo",
    "cr": "http://mlcommons.org/croissant/",
    "data": {
      "@id": "cr:data",
      "@type": "@json"
    },
    "dataType": {
      "@id": "cr:dataType",
      "@type": "@vocab"
    },
    "dct": "http://purl.org/dc/terms/",
    "examples": {
      "@id": "cr:examples",
      "@type": "@json"
    },
    "extract": "cr:extract",
    "field": "cr:field",
    "fileProperty": "cr:fileProperty",
    "fileObject": "cr:fileObject",
    "fileSet": "cr:fileSet",
    "format": "cr:format",
    "includes": "cr:includes",
    "isLiveDataset": "cr:isLiveDataset",
    "jsonPath": "cr:jsonPath",
    "key": "cr:key",
    "md5": "cr:md5",
    "parentField": "cr:parentField",
    "path": "cr:path",
    "recordSet": "cr:recordSet",
    "references": "cr:references",
    "regex": "cr:regex",
    "repeated": "cr:repeated",
    "replace": "cr:replace",
    "sc": "https://schema.org/",
    "separator": "cr:separator",
    "source": "cr:source",
    "subField": "cr:subField",
    "transform": "cr:transform"
  },
  "@type": "sc:Dataset",
  "conformsTo": "http://mlcommons.org/croissant/1.0",
  "name": "xenium-tonsil-reactive",
  "title": "Xenium \u2014 Human Tonsil (reactive follicular hyperplasia, FFPE, Multi-Tissue & Cancer panel)",
  "description": "An adult human palatine tonsil section showing reactive follicular hyperplasia, a benign immune response in which germinal centres expand as B cells proliferate against antigenic stimulation. The tissue is FFPE-preserved and profiled with the Xenium Human Multi-Tissue & Cancer Panel (377 genes), a broad survey panel spanning major lineages across many organs. Served as cell and nucleus boundary polygons, transcript point features, and the DAPI morphology raster, the run is well suited to mapping germinal-centre architecture and lymphoid microenvironment organisation.\n",
  "url": "https://ngrf.mudm.io/datasets/xenium-tonsil-reactive.html",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "keywords": [
    "homo-sapiens",
    "tonsil",
    "reactive-follicular-hyperplasia",
    "ffpe",
    "multi-tissue-cancer",
    "immuno-oncology",
    "transcriptomics"
  ],
  "distribution": [
    {
      "@type": "cr:FileObject",
      "@id": "parquet-archive",
      "name": "parquet-archive",
      "description": "muDM features Parquet tree, served directly over HTTP \u2014 Hive-partitioned, range-readable.",
      "contentUrl": "https://ngrf.mudm.io/tiles2d/xenium-tonsil-reactive/features.parquet/",
      "encodingFormat": "application/vnd.apache.parquet"
    },
    {
      "@type": "cr:FileSet",
      "@id": "features-parquet",
      "name": "features-parquet",
      "description": "muDM binary tile geometry, NOT GeoParquet. Hive-partitioned by zoom=.",
      "containedIn": {
        "@id": "parquet-archive"
      },
      "encodingFormat": "application/x-parquet",
      "includes": "**/*.parquet"
    }
  ],
  "recordSet": [
    {
      "@type": "cr:RecordSet",
      "@id": "features",
      "name": "features",
      "description": "Per-feature muDM tile geometry + properties.",
      "field": [
        {
          "@type": "cr:Field",
          "@id": "features/tile_x",
          "name": "tile_x",
          "description": "Tile column index.",
          "dataType": "sc:Integer",
          "source": {
            "fileSet": {
              "@id": "features-parquet"
            },
            "extract": {
              "column": "tile_x"
            }
          }
        },
        {
          "@type": "cr:Field",
          "@id": "features/tile_y",
          "name": "tile_y",
          "description": "Tile row index.",
          "dataType": "sc:Integer",
          "source": {
            "fileSet": {
              "@id": "features-parquet"
            },
            "extract": {
              "column": "tile_y"
            }
          }
        },
        {
          "@type": "cr:Field",
          "@id": "features/feature_id",
          "name": "feature_id",
          "description": "Stable per-feature id.",
          "dataType": "sc:Integer",
          "source": {
            "fileSet": {
              "@id": "features-parquet"
            },
            "extract": {
              "column": "feature_id"
            }
          }
        },
        {
          "@type": "cr:Field",
          "@id": "features/geom_type",
          "name": "geom_type",
          "description": "muDM geometry type.",
          "dataType": "sc:Text",
          "source": {
            "fileSet": {
              "@id": "features-parquet"
            },
            "extract": {
              "column": "geom_type"
            }
          }
        },
        {
          "@type": "cr:Field",
          "@id": "features/positions",
          "name": "positions",
          "description": "Binary-packed vertex positions (muDM geometry, NOT WKB).",
          "dataType": "sc:Text",
          "source": {
            "fileSet": {
              "@id": "features-parquet"
            },
            "extract": {
              "column": "positions"
            }
          }
        },
        {
          "@type": "cr:Field",
          "@id": "features/indices",
          "name": "indices",
          "description": "Binary-packed triangle/ring indices.",
          "dataType": "sc:Text",
          "source": {
            "fileSet": {
              "@id": "features-parquet"
            },
            "extract": {
              "column": "indices"
            }
          }
        },
        {
          "@type": "cr:Field",
          "@id": "features/ring_lengths",
          "name": "ring_lengths",
          "description": "Per-ring vertex counts.",
          "dataType": "sc:Text",
          "source": {
            "fileSet": {
              "@id": "features-parquet"
            },
            "extract": {
              "column": "ring_lengths"
            }
          }
        },
        {
          "@type": "cr:Field",
          "@id": "features/tags",
          "name": "tags",
          "description": "Map<Utf8,Utf8> of feature properties (markers/genes stringified).",
          "dataType": "sc:Text",
          "source": {
            "fileSet": {
              "@id": "features-parquet"
            },
            "extract": {
              "column": "tags"
            }
          }
        },
        {
          "@type": "cr:Field",
          "@id": "features/zoom",
          "name": "zoom",
          "description": "Hive partition key (zoom level).",
          "dataType": "sc:Integer",
          "source": {
            "fileSet": {
              "@id": "features-parquet"
            },
            "extract": {
              "column": "zoom"
            }
          }
        }
      ]
    }
  ],
  "citeAs": "10x Genomics. Human Tonsil Data with Xenium Human Multi-Tissue and Cancer Panel (Xenium). Public dataset."
}