{
  "step": 875000,
  "stats": {
    "climbmix/blocks": 31500000,
    "climbmix/targets": 52657150038,
    "climbmix/input_tokens": 52660486950,
    "ultra_qa/blocks": 11812500,
    "ultra_qa/targets": 19271353866,
    "ultra_qa/input_tokens": 19271390893,
    "cortex/blocks": 11812500,
    "cortex/targets": 449143762,
    "cortex/input_tokens": 18776747701,
    "ultra_style/blocks": 11812500,
    "ultra_style/targets": 18684178798,
    "ultra_style/input_tokens": 18685158198,
    "openmath/blocks": 7875000,
    "openmath/targets": 12168335207,
    "openmath/input_tokens": 12172389842,
    "rewrite6/blocks": 3937500,
    "rewrite6/targets": 6455009145,
    "rewrite6/input_tokens": 6462085998
  },
  "sources": {
    "climbmix": {
      "page": 4314,
      "row": 579,
      "start": {
        "file": 208,
        "reader": {
          "format": "parquet-row-v1",
          "row_group": 68,
          "row": 1024
        }
      },
      "epoch": 0,
      "offset": 2048,
      "documents": 17670723
    },
    "rewrite6": {
      "page": 4,
      "row": 876,
      "start": {
        "file": 0,
        "reader": {
          "format": "jsonl-row-v1",
          "row": 16384
        }
      },
      "epoch": 49,
      "offset": 2048,
      "documents": 10082056
    },
    "openmath": {
      "page": 2696,
      "row": 1147,
      "start": {
        "file": 25,
        "reader": {
          "format": "parquet-row-v1",
          "row_group": 126,
          "row": 568
        }
      },
      "epoch": 0,
      "offset": 0,
      "documents": 11043963
    },
    "ultra_qa": {
      "page": 1165,
      "row": 3053,
      "start": {
        "file": 9,
        "reader": {
          "format": "parquet-row-v1",
          "row_group": 1,
          "row": 30655
        }
      },
      "epoch": 0,
      "offset": 4096,
      "documents": 4774893
    },
    "ultra_style": {
      "page": 1779,
      "row": 128,
      "start": {
        "file": 10,
        "reader": {
          "format": "parquet-row-v1",
          "row_group": 5,
          "row": 12636
        }
      },
      "epoch": 0,
      "offset": 2048,
      "documents": 7286912
    },
    "cortex": {
      "page": 229085,
      "row": 121,
      "start": null,
      "epoch": 0,
      "offset": 0,
      "documents": 29323001
    }
  }
}