Add shard_00038.manifest.json

manifests/shard_00038.manifest.json

@@ -0,0 +1,19 @@
+{
+  "shard_id": 38,
+  "rows": 117945,
+  "size_mb": 199.48,
+  "compression": "zstd",
+  "source_breakdown": {
+    "arithmetic": 0.1209,
+    "fineweb_edu": 0.1694,
+    "finewiki": 0.3427,
+    "cosmopedia_v2": 0.0864,
+    "python_edu": 0.1042,
+    "tiny_math": 0.1199,
+    "tiny_strange": 0.0279,
+    "mini_en": 0.0144,
+    "tiny_textbooks": 0.0142
+  },
+  "created_at": "2026-07-13T18:35:41.180172Z",
+  "run_name": "bison-data-v2"
+}