diff --git a/proto/orion.proto b/proto/orion.proto
new file mode 100644
index 000000000..681ad75c2
--- /dev/null
+++ b/proto/orion.proto
@@ -0,0 +1,7 @@
+syntax = "proto3";
+
+package orion;
+
+message F64 {
+    int64 d = 1;
+}
\ No newline at end of file