{
  "step": 850000,
  "stats": {
    "climbmix/blocks": 30600000,
    "climbmix/targets": 51152990791,
    "climbmix/input_tokens": 51156232218,
    "ultra_qa/blocks": 11475000,
    "ultra_qa/targets": 18720819448,
    "ultra_qa/input_tokens": 18720855442,
    "cortex/blocks": 11475000,
    "cortex/targets": 436347195,
    "cortex/input_tokens": 18240375745,
    "ultra_style/blocks": 11475000,
    "ultra_style/targets": 18150549959,
    "ultra_style/input_tokens": 18151501590,
    "openmath/blocks": 7650000,
    "openmath/targets": 11820568087,
    "openmath/input_tokens": 11824507080,
    "rewrite6/blocks": 3825000,
    "rewrite6/targets": 6270523226,
    "rewrite6/input_tokens": 6277398213
  },
  "sources": {
    "climbmix": {
      "page": 4190,
      "row": 3595,
      "start": {
        "file": 202,
        "reader": {
          "format": "parquet-row-v1",
          "row_group": 68,
          "row": 1024
        }
      },
      "epoch": 0,
      "offset": 12288,
      "documents": 17165835
    },
    "rewrite6": {
      "page": 34,
      "row": 1198,
      "start": {
        "file": 0,
        "reader": {
          "format": "jsonl-row-v1",
          "row": 139264
        }
      },
      "epoch": 47,
      "offset": 0,
      "documents": 9794450
    },
    "openmath": {
      "page": 2619,
      "row": 1184,
      "start": {
        "file": 24,
        "reader": {
          "format": "parquet-row-v1",
          "row_group": 247,
          "row": 825
        }
      },
      "epoch": 0,
      "offset": 2048,
      "documents": 10728608
    },
    "ultra_qa": {
      "page": 1132,
      "row": 1781,
      "start": {
        "file": 8,
        "reader": {
          "format": "parquet-row-v1",
          "row_group": 7,
          "row": 27950
        }
      },
      "epoch": 0,
      "offset": 2048,
      "documents": 4638453
    },
    "ultra_style": {
      "page": 1728,
      "row": 889,
      "start": {
        "file": 10,
        "reader": {
          "format": "parquet-row-v1",
          "row_group": 2,
          "row": 58507
        }
      },
      "epoch": 0,
      "offset": 4096,
      "documents": 7078777
    },
    "cortex": {
      "page": 222542,
      "row": 73,
      "start": null,
      "epoch": 0,
      "offset": 0,
      "documents": 28485449
    }
  }
}