diff --git a/src/bin/client-demo.rs b/src/bin/client-demo.rs
index ab5f1a48e2..e40d837677 100644
--- a/src/bin/client-demo.rs
+++ b/src/bin/client-demo.rs
@@ -22,19 +22,44 @@ fn main() {
     let one = 1;
     println!("Signing transactions...");
     let now = Instant::now();
-    let sigs = (0..txs).map(|_| {
-        let rando_keypair = generate_keypair();
-        let rando_pubkey = get_pubkey(&rando_keypair);
-        let sig = sign_transaction_data(&one, &alice_keypair, &rando_pubkey);
-        (rando_pubkey, sig)
-    });
+    let sigs: Vec<(_, _)> = (0..txs)
+        .map(|_| {
+            let rando_keypair = generate_keypair();
+            let rando_pubkey = get_pubkey(&rando_keypair);
+            let sig = sign_transaction_data(&one, &alice_keypair, &rando_pubkey);
+            (rando_pubkey, sig)
+        })
+        .collect();
     let duration = now.elapsed();
     let ns = duration.as_secs() * 1_000_000_000 + duration.subsec_nanos() as u64;
     let bsps = txs as f64 / ns as f64;
     let nsps = ns as f64 / txs as f64;
     println!(
-        "Done. {} billion signatures per second, {}ns per signature",
-        bsps, nsps
+        "Done. {} thousand signatures per second, {}us per signature",
+        bsps * 1_000_000_f64,
+        nsps / 1_000_f64
+    );
+
+    println!("Verify signatures...");
+    use silk::event::{verify_event, Event};
+    let now = Instant::now();
+    for &(k, s) in &sigs {
+        let e = Event::Transaction {
+            from: Some(alice_pubkey),
+            to: k,
+            data: one,
+            sig: s,
+        };
+        assert!(verify_event(&e));
+    }
+    let duration = now.elapsed();
+    let ns = duration.as_secs() * 1_000_000_000 + duration.subsec_nanos() as u64;
+    let bsvps = txs as f64 / ns as f64;
+    let nspsv = ns as f64 / txs as f64;
+    println!(
+        "Done. {} thousand signature verifications per second, {}us per signature verification",
+        bsvps * 1_000_000_f64,
+        nspsv / 1_000_f64
     );
 
     println!("Transferring 1 unit {} times...", txs);