diff --git a/lib/core.js b/lib/core.js
index ac1432ce..f14492b2 100644
--- a/lib/core.js
+++ b/lib/core.js
@@ -321,7 +321,7 @@ module.exports = class Core {
       for (const val of values) batch.append(val)
 
       const hash = batch.hash()
-      batch.signature = await auth.sign(batch.signable(hash), batch)
+      batch.signature = await auth.sign(batch.signable(hash), batch, hash)
 
       const entry = {
         userData: null,
@@ -357,7 +357,7 @@ module.exports = class Core {
   }
 
   _signed (batch, hash, auth = this.defaultAuth) {
-    return auth.verify(batch.signable(hash), batch.signature, batch)
+    return auth.verify(batch.signable(hash), batch.signature, batch, hash)
   }
 
   async _verifyExclusive ({ batch, bitfield, value, from }) {