Note that generate verification hash algorithm might be added.

index.html

@@ -1618,6 +1618,14 @@ <h2>Algorithms</h2>
 <a href="#cryptographic-suites"></a>).
       </p>
 
+      <p class="issue" title="Generate verification hash algorithm">
+At present the creation of the verification hash is delegated to the
+cryptographic suite specification when generating and verifying a proof. It is
+expected that this algorithm is going to be common to most cryptographic suites.
+It is predicted that the verification hash generation algorithm will eventually
+be defined in this specification.
+      </p>
+
       <section class="normative">
         <h3>Generate Proof</h3>