diff --git a/src/main/scala/app/handlers/EventSignatures.scala b/src/main/scala/app/handlers/EventSignatures.scala
index 49caf21..76c0cbe 100644
--- a/src/main/scala/app/handlers/EventSignatures.scala
+++ b/src/main/scala/app/handlers/EventSignatures.scala
@@ -135,7 +135,7 @@ object EventSignatures extends Handler {
   }
 
   @nowarn("cat=other")
-  def itemSignatureValid(evtj: String): MaybeItem = Future {
+  def itemSignatureValid(evtj: String): MaybeItem = {
     val event: js.Dynamic = js.JSON.parse(evtj)
 
     def render(result: Boolean) = Item.component(
@@ -148,9 +148,11 @@ object EventSignatures extends Handler {
       )
     )
 
-    true match {
-      case true  => Right(render(true))
-      case false => Left(render(false))
+    Nostr.verifySignature(event).toFuture map { result =>
+      result match {
+        case true  => Right(render(true))
+        case false => Left(render(false))
+      }
     }
   }
 
@@ -186,9 +188,7 @@ object EventSignatures extends Handler {
           case Nil => Future { acc.reverse }
         }
 
-        runAndUnwrapUntilFirstLeft(protoElements, List()) foreach { elements =>
-          setElements(elements)
-        }
+        runAndUnwrapUntilFirstLeft(protoElements, List()) foreach setElements
 
         () => {}
       },
diff --git a/src/main/scala/app/modules/Nostr.scala b/src/main/scala/app/modules/Nostr.scala
index bfb83c0..b6954b4 100644
--- a/src/main/scala/app/modules/Nostr.scala
+++ b/src/main/scala/app/modules/Nostr.scala
@@ -9,6 +9,6 @@ object Nostr extends js.Object {
   def getPublicKey(text: String): String = js.native
   def getEventHash(evt: js.Dynamic): String = js.native
   def serializeEvent(evt: js.Dynamic): String = js.native
-  def verifySignature(evt: js.Dynamic): Boolean = js.native
+  def verifySignature(evt: js.Dynamic): js.Promise[Boolean] = js.native
   def signEvent(evt: js.Dynamic, privateKey: String): String = js.native
 }