diff --git a/hip-0304.md b/hip-0304.md
index 4282633..f8c6f2b 100644
--- a/hip-0304.md
+++ b/hip-0304.md
@@ -24,6 +24,17 @@ TLDR: Extend the `signmessage` and `verifymessage` RPCs to Sapling shielded addr
 
 # Specification
 
+This document specifies two new RPCs
+
+    z_signmessage
+    z_verifymessage
+
+which are direct shielded counterparts to the original Bitcoin RPCs:
+
+    signmessage
+    verifymessage
+
+
 # References
 
 .. [#RFC2119] `Key words for use in RFCs to Indicate Requirement Levels <https://tools.ietf.org/html/rfc2119>`_