diff --git a/index.html b/index.html
index 592f15f1d..c56ec171a 100644
--- a/index.html
+++ b/index.html
@@ -5132,6 +5132,10 @@ <h2>The <code>application/credential+ld+json</code> Media Type</h2>
     the use of a specific media type.
   </p>
 
+  <p>
+    This media type can be used with credentials secured using an <a>external proof</a>.
+  </p>
+  <p>A [[JSON-LD]] context is expected to be present in the body of the document, and as indicated by the presence of `ld+json` in the media type, the credential is expected to be a valid <a href="https://www.w3.org/TR/json-ld11/#dfn-json-ld-document">JSON-LD document</a>.</p>
 </section>