diff --git a/zip-frost.rst b/zip-frost.rst
index 59e5c78d..feabd010 100644
--- a/zip-frost.rst
+++ b/zip-frost.rst
@@ -1,6 +1,6 @@
 ::
 
-  ZIP: Unassigned {numbers are assigned by ZIP editors}
+  ZIP: 312
   Title: FROST for Spend Authorization Signatures
   Owners: Conrado Gouvea <conrado@zfnd.org>
           Chelsea Komlo <ckomlo@uwaterloo.ca>
@@ -24,7 +24,8 @@ be interpreted as described in RFC 2119. [#RFC2119]_
 The terms below are to be interpreted as follows:
 
 Unlinkability
-  The impossibility of determining if two transactions were generated by the same
+  The property of statistical independence of signatures from the signers' long-term keys, ensuring that
+  (for perfectly uniform generation of Randomizers and no leakage of metadata) it is impossible to determine whether two transactions were generated by the same
   party.