{
  "_comment": [
    "The dataset registry: the one place every pipeline stage agrees on what",
    "exists. JSON because the Go stages and the Vite app both read it.",
    "",
    "  id           the identifier used end to end, from data/<id>/ to /thptqg/<id>/",
    "  expectedRows exact row count of the built database, not an estimate. The",
    "               inputs are frozen exam results, so a deviation of even one row",
    "               means something changed unintentionally and the assembler",
    "               refuses to publish.",
    "  dbSizeMb     usual size of the published database. Required and non-zero:",
    "               the assembler rejects a build that comes out far smaller. The",
    "               file is served uncompressed and read a page at a time over",
    "               HTTP range requests, so nothing downloads it whole.",
    "",
    "Presentation (titles, labels, SQL presets) lives in web/src/datasets.js keyed",
    "by id; that file throws at load if the two lists disagree."
  ],
  "datasets": [
    {
      "id": "2016",
      "expectedRows": 877460,
      "dbSizeMb": 302
    },
    {
      "id": "2017",
      "expectedRows": 861068,
      "dbSizeMb": 247
    }
  ]
}