diff --git a/backtest/cache/data_manifest.json b/backtest/cache/data_manifest.json
new file mode 100644
index 0000000..fc6d663
--- /dev/null
+++ b/backtest/cache/data_manifest.json
@@ -0,0 +1,10 @@
+{
+  "cache_files": {
+    "oanda_XAU_USD_15min_20181031_20260807.parquet": "58e34d95f708af73eb0e22885b391fe4c91936362decb23986744bea17e2db9e",
+    "oanda_XAU_USD_1d_20180308_20260807.parquet": "fbcf75d38697382a488455514aa883d308ca5eca2c06daf5e1db860fb53138f8",
+    "oanda_XAU_USD_1h_20181031_20260807.parquet": "59528cac12b59906c28e459dd464d68b6175ce3cc532fb6199aed7fc73e8d3e9",
+    "oanda_XAU_USD_4h_20181031_20260807.parquet": "1602ac97b3fa7ba000ea77c14dbb8fc5a1ea7019dc2cf4243e6e01a81d3ea701",
+    "oanda_XAU_USD_5min_20181031_20260807.parquet": "e9bb1c8bc7408283271784b25f2a98aff8493624106caf26b3bf8aac08d3b286"
+  },
+  "updated_utc": "2026-08-07T21:45:01Z"
+}