diff --git a/src/chronoshare-client.ice b/src/chronoshare-client.ice
new file mode 100644
index 0000000..f32577e
--- /dev/null
+++ b/src/chronoshare-client.ice
@@ -0,0 +1,32 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2012 University of California, Los Angeles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ *	   Zhenkai Zhu <zhenkai@cs.ucla.edu>
+ */
+
+module ChronoshareClient
+{
+  sequence<byte> HashBytes;
+  
+  interface Notify 
+  {
+    void updateFile (string filename, HashBytes fileHash, string atime, string mtime, string ctime, int mode);
+
+    void deleteFile (string filename);
+  };
+};