{
  "step": 220000,
  "stats": {
    "climbmix/blocks": 7920000,
    "climbmix/targets": 13238818073,
    "climbmix/input_tokens": 13239656864,
    "ultra_qa/blocks": 2970000,
    "ultra_qa/targets": 4845561521,
    "ultra_qa/input_tokens": 4845570884,
    "cortex/blocks": 2970000,
    "cortex/targets": 113003359,
    "cortex/input_tokens": 4720874700,
    "ultra_style/blocks": 2970000,
    "ultra_style/targets": 4697944483,
    "ultra_style/input_tokens": 4698190714,
    "openmath/blocks": 1980000,
    "openmath/targets": 3059241505,
    "openmath/input_tokens": 3060261058,
    "rewrite6/blocks": 990000,
    "rewrite6/targets": 1622934859,
    "rewrite6/input_tokens": 1624714314
  },
  "sources": {
    "climbmix": {
      "page": 1084,
      "row": 2938,
      "start": {
        "file": 52,
        "reader": {
          "format": "parquet-row-v1",
          "row_group": 37,
          "row": 1024
        }
      },
      "epoch": 0,
      "offset": 2048,
      "documents": 4443002
    },
    "rewrite6": {
      "page": 17,
      "row": 543,
      "start": {
        "file": 0,
        "reader": {
          "format": "jsonl-row-v1",
          "row": 69632
        }
      },
      "epoch": 12,
      "offset": 0,
      "documents": 2535023
    },
    "openmath": {
      "page": 677,
      "row": 4056,
      "start": {
        "file": 6,
        "reader": {
          "format": "parquet-row-v1",
          "row_group": 153,
          "row": 92
        }
      },
      "epoch": 0,
      "offset": 0,
      "documents": 2777048
    },
    "ultra_qa": {
      "page": 293,
      "row": 482,
      "start": {
        "file": 2,
        "reader": {
          "format": "parquet-row-v1",
          "row_group": 2,
          "row": 31730
        }
      },
      "epoch": 0,
      "offset": 4096,
      "documents": 1200610
    },
    "ultra_style": {
      "page": 447,
      "row": 1254,
      "start": {
        "file": 2,
        "reader": {
          "format": "parquet-row-v1",
          "row_group": 5,
          "row": 36808
        }
      },
      "epoch": 0,
      "offset": 2048,
      "documents": 1832166
    },
    "cortex": {
      "page": 57598,
      "row": 126,
      "start": null,
      "epoch": 0,
      "offset": 0,
      "documents": 7372670
    }
  }
}