Add shard_00050.manifest.json

manifests/shard_00050.manifest.json

@@ -0,0 +1,18 @@
+{
+  "shard_id": 50,
+  "rows": 194544,
+  "size_mb": 213.92,
+  "compression": "zstd",
+  "source_breakdown": {
+    "finewiki": 0.3965,
+    "cosmopedia_v2": 0.0977,
+    "python_edu": 0.1174,
+    "arithmetic": 0.1381,
+    "fineweb_edu": 0.1971,
+    "tiny_strange": 0.0314,
+    "mini_en": 0.0091,
+    "tiny_textbooks": 0.0128
+  },
+  "created_at": "2026-07-13T20:05:38.873129Z",
+  "run_name": "bison-data-v2"
+}