Add shard_00039.manifest.json

manifests/shard_00039.manifest.json

@@ -0,0 +1,19 @@
+{
+  "shard_id": 39,
+  "rows": 102371,
+  "size_mb": 199.0,
+  "compression": "zstd",
+  "source_breakdown": {
+    "finewiki": 0.3434,
+    "fineweb_edu": 0.1719,
+    "cosmopedia_v2": 0.0872,
+    "arithmetic": 0.1194,
+    "mini_en": 0.0114,
+    "tiny_math": 0.1206,
+    "python_edu": 0.1028,
+    "tiny_textbooks": 0.015,
+    "tiny_strange": 0.0282
+  },
+  "created_at": "2026-07-13T18:44:37.217780Z",
+  "run_name": "bison-data-v2"
+}