{
  "step": 55000,
  "stats": {
    "climbmix/blocks": 1980000,
    "climbmix/targets": 3309029909,
    "climbmix/input_tokens": 3309239389,
    "ultra_qa/blocks": 742500,
    "ultra_qa/targets": 1211473004,
    "ultra_qa/input_tokens": 1211475401,
    "cortex/blocks": 742500,
    "cortex/targets": 28237480,
    "cortex/input_tokens": 1180342911,
    "ultra_style/blocks": 742500,
    "ultra_style/targets": 1174419713,
    "ultra_style/input_tokens": 1174481204,
    "openmath/blocks": 495000,
    "openmath/targets": 764845062,
    "openmath/input_tokens": 765100091,
    "rewrite6/blocks": 247500,
    "rewrite6/targets": 405729377,
    "rewrite6/input_tokens": 406174162
  },
  "sources": {
    "climbmix": {
      "page": 271,
      "row": 208,
      "start": {
        "file": 13,
        "reader": {
          "format": "parquet-row-v1",
          "row_group": 9,
          "row": 1024
        }
      },
      "epoch": 0,
      "offset": 53248,
      "documents": 1110224
    },
    "rewrite6": {
      "page": 4,
      "row": 1053,
      "start": {
        "file": 0,
        "reader": {
          "format": "jsonl-row-v1",
          "row": 16384
        }
      },
      "epoch": 3,
      "offset": 2048,
      "documents": 633649
    },
    "openmath": {
      "page": 169,
      "row": 1982,
      "start": {
        "file": 1,
        "reader": {
          "format": "parquet-row-v1",
          "row_group": 255,
          "row": 574
        }
      },
      "epoch": 0,
      "offset": 2048,
      "documents": 694206
    },
    "ultra_qa": {
      "page": 73,
      "row": 1336,
      "start": {
        "file": 0,
        "reader": {
          "format": "parquet-row-v1",
          "row_group": 4,
          "row": 40674
        }
      },
      "epoch": 0,
      "offset": 4096,
      "documents": 300344
    },
    "ultra_style": {
      "page": 111,
      "row": 3394,
      "start": {
        "file": 0,
        "reader": {
          "format": "parquet-row-v1",
          "row_group": 5,
          "row": 28852
        }
      },
      "epoch": 0,
      "offset": 2048,
      "documents": 458050
    },
    "cortex": {
      "page": 14397,
      "row": 119,
      "start": null,
      "epoch": 0,
      "offset": 0,
      "documents": 1842935
    }
  }
}