diff --git a/62.md b/62.md
index 39e1c83a..d140e7f7 100644
--- a/62.md
+++ b/62.md
@@ -55,7 +55,8 @@ An event of kind `32001` SHALL serve to authenticate a versioned object hosted b
   "tags": [
     ["d", <unique identifier>],
     ["r", <comma-separated urls>],
-    ["a", <event id>, <relay hint>],
+    ["a", <previous event id>, <relay hint>],
+    ["a", <root event id>, <relay hint>],
     ["m", <MIME type>],
     ["client", <name>, <address>, <relay hint>],
     ["hash", <hash method>]