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diff --git a/train/tulu_flan/tulu_flan_0026-tokenized-chunked-1024-512-128-backfill-nodups/index.json b/train/tulu_flan/tulu_flan_0026-tokenized-chunked-1024-512-128-backfill-nodups/index.json
new file mode 100644
index 0000000000000000000000000000000000000000..cca1664e75660a48d65a98e3654202cfedc56367
--- /dev/null
+++ b/train/tulu_flan/tulu_flan_0026-tokenized-chunked-1024-512-128-backfill-nodups/index.json
@@ -0,0 +1 @@
+{"shards": [{"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00000.mds", "bytes": 67108828, "hashes": {}}, "samples": 284965, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00000.mds.zstd", "bytes": 46866043, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00001.mds", "bytes": 67108845, "hashes": {}}, "samples": 286948, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00001.mds.zstd", "bytes": 46660208, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00002.mds", "bytes": 67108671, "hashes": {}}, "samples": 278885, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00002.mds.zstd", "bytes": 45126684, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00003.mds", "bytes": 67108732, "hashes": {}}, "samples": 275366, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00003.mds.zstd", "bytes": 44416042, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00004.mds", "bytes": 67108703, "hashes": {}}, "samples": 275481, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00004.mds.zstd", "bytes": 44424466, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00005.mds", "bytes": 67108668, "hashes": {}}, "samples": 275840, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00005.mds.zstd", "bytes": 44435188, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00006.mds", "bytes": 67108839, "hashes": {}}, "samples": 275372, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00006.mds.zstd", "bytes": 44440257, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00007.mds", "bytes": 43179602, "hashes": {}}, "samples": 176862, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00007.mds.zstd", "bytes": 28565714, "hashes": {}}}], "version": 2}
\ No newline at end of file
diff --git a/train/tulu_flan/tulu_flan_0026-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/tulu_flan/tulu_flan_0026-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
new file mode 100644
index 0000000000000000000000000000000000000000..0c3afecbc03d6f1f112950e15867a3673f523299
--- /dev/null
+++ b/train/tulu_flan/tulu_flan_0026-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
@@ -0,0 +1,4 @@
+{
+  "num_tokens": 207464754,
+  "num_truncated_tokens": 207463562
+}
\ No newline at end of file
diff --git a/train/tulu_flan/tulu_flan_0030-tokenized-chunked-1024-512-128-backfill-nodups/index.json b/train/tulu_flan/tulu_flan_0030-tokenized-chunked-1024-512-128-backfill-nodups/index.json
new file mode 100644
index 0000000000000000000000000000000000000000..3cf2c11354a9187f5c72deee7cc8c7b34dcc09b4
--- /dev/null
+++ b/train/tulu_flan/tulu_flan_0030-tokenized-chunked-1024-512-128-backfill-nodups/index.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/train/tulu_flan/tulu_flan_0030-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/tulu_flan/tulu_flan_0030-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
new file mode 100644
index 0000000000000000000000000000000000000000..494b44020652ebacf78d88839c7ca21c0d5ecf93
--- /dev/null
+++ b/train/tulu_flan/tulu_flan_0030-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
@@ -0,0 +1,4 @@
+{
+  "num_tokens": 298910716,
+  "num_truncated_tokens": 298857274
+}
\ No newline at end of file
diff --git a/train/tulu_flan/tulu_flan_0047-tokenized-chunked-1024-512-128-backfill-nodups/index.json b/train/tulu_flan/tulu_flan_0047-tokenized-chunked-1024-512-128-backfill-nodups/index.json
new file mode 100644
index 0000000000000000000000000000000000000000..c27339eeb5f868490ce84f78e42dec9c5bba8f5c
--- /dev/null
+++ b/train/tulu_flan/tulu_flan_0047-tokenized-chunked-1024-512-128-backfill-nodups/index.json
@@ -0,0 +1 @@
+{"shards": [{"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00000.mds", "bytes": 67108864, "hashes": {}}, "samples": 61216, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00000.mds.zstd", "bytes": 38151888, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00001.mds", "bytes": 67108368, "hashes": {}}, "samples": 61210, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00001.mds.zstd", "bytes": 38144405, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00002.mds", "bytes": 67108651, "hashes": {}}, "samples": 61279, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00002.mds.zstd", "bytes": 38103377, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00003.mds", "bytes": 67108004, "hashes": {}}, "samples": 61116, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00003.mds.zstd", "bytes": 38151340, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00004.mds", "bytes": 67108620, "hashes": {}}, "samples": 61228, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00004.mds.zstd", "bytes": 38123518, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00005.mds", "bytes": 67108497, "hashes": {}}, "samples": 61249, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00005.mds.zstd", "bytes": 38138327, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00006.mds", "bytes": 67108300, "hashes": {}}, "samples": 61159, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00006.mds.zstd", "bytes": 38099793, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00007.mds", "bytes": 67108448, "hashes": {}}, "samples": 61349, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00007.mds.zstd", "bytes": 38122786, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00008.mds", "bytes": 67108675, "hashes": {}}, "samples": 61185, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00008.mds.zstd", "bytes": 38142095, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00009.mds", "bytes": 67108477, "hashes": {}}, "samples": 61168, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00009.mds.zstd", "bytes": 38085001, "hashes": {}}}, {"column_encodings": ["str", "ndarray:uint16"], "column_names": ["id", "input_ids"], "column_sizes": [null, null], "compression": "zstd", "format": "mds", "hashes": [], "raw_data": {"basename": "shard.00010.mds", "bytes": 25988672, "hashes": {}}, "samples": 23612, "size_limit": 67108864, "version": 2, "zip_data": {"basename": "shard.00010.mds.zstd", "bytes": 14782236, "hashes": {}}}], "version": 2}
\ No newline at end of file
diff --git a/train/tulu_flan/tulu_flan_0047-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/tulu_flan/tulu_flan_0047-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
new file mode 100644
index 0000000000000000000000000000000000000000..cbcee7fc0807858bc28badf892b3d0c4640e2a33
--- /dev/null
+++ b/train/tulu_flan/tulu_flan_0047-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
@@ -0,0 +1,4 @@
+{
+  "num_tokens": 333613100,
+  "num_truncated_tokens": 333612426
+}
\ No newline at end of file