diff --git a/Gray-Hat/README.md b/Gray-Hat/README.md
new file mode 100644
index 0000000..7ca3860
--- /dev/null
+++ b/Gray-Hat/README.md
@@ -0,0 +1,5 @@
+## Gray hacker stuff
+
+<br>
+
+* [Anonymous Airdrops using ZK proofs](https://github.com/stealthdrop/stealthdrop)