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new file mode 100644
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diff --git a/train/mlfoundations-dclm-baseline-1.0-parquet-sampled/split_950-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/mlfoundations-dclm-baseline-1.0-parquet-sampled/split_950-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
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\ No newline at end of file
diff --git a/train/stackexchange/stackexchange_0002-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/stackexchange/stackexchange_0002-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
new file mode 100644
index 0000000000000000000000000000000000000000..28b37d089d2d2a34be4a36fa94ee5384f6f0414e
--- /dev/null
+++ b/train/stackexchange/stackexchange_0002-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
@@ -0,0 +1,4 @@
+{
+  "num_tokens": 800974659,
+  "num_truncated_tokens": 800783926
+}
\ No newline at end of file