diff --git a/03.md b/03.md
index 74e010cb..3cd40a07 100644
--- a/03.md
+++ b/03.md
@@ -12,8 +12,8 @@ This NIP defines an event with `kind:1040` that can contain an [OpenTimestamps](
 {
   "kind": 1040
   "tags": [
-    ["e", <event-id>, <relay-url>],
-    ["alt", "opentimestamps attestation"]
+    ["e", <target-event-id>, <relay-url>],
+    ["k", "<target-event-kind>"]
   ],
   "content": <base64-encoded OTS file data>
 }