diff --git a/sx/sx/boundary.sx b/sx/sx/boundary.sx
index 3082b67..e62e371 100644
--- a/sx/sx/boundary.sx
+++ b/sx/sx/boundary.sx
@@ -94,3 +94,8 @@
   :params ()
   :returns "dict"
   :service "sx")
+
+(define-page-helper "prove-data"
+  :params ()
+  :returns "dict"
+  :service "sx")