Add shard_00018.manifest.json

manifests/shard_00018.manifest.json

@@ -0,0 +1,19 @@
+{
+  "shard_id": 18,
+  "rows": 135369,
+  "size_mb": 198.95,
+  "compression": "zstd",
+  "source_breakdown": {
+    "mini_en": 0.0148,
+    "tiny_math": 0.1196,
+    "arithmetic": 0.1183,
+    "tiny_textbooks": 0.02,
+    "finewiki": 0.3405,
+    "python_edu": 0.1029,
+    "fineweb_edu": 0.1712,
+    "cosmopedia_v2": 0.085,
+    "tiny_strange": 0.0278
+  },
+  "created_at": "2026-07-13T16:23:25.724317Z",
+  "run_name": "bison-data-v2"
+}