site: note fuzzed send timing in How a payment travels

Each message is stamped a random moment up to two days in the past
(seal and wrap both), so observers cannot correlate send time; matches
Timestamp::tweaked in the wallet's gift-wrap path

index.html

@@ -81,7 +81,7 @@
       <div class="rail-card">
         <div class="rail-title">
           <h2>How a payment travels</h2>
-          <span class="sub">Payments are NIP-44 encrypted; relays only ever see ciphertext — never the amount, sender, or recipient. Privacy is Mimblewimble on-chain + Tor on the wire.</span>
+          <span class="sub">Payments are NIP-44 encrypted; relays only ever see ciphertext — never the amount, sender, or recipient. Even the send time is fuzzed: each message is stamped a random moment up to two days in the past, so no one can line up when you sent it. Privacy is Mimblewimble on-chain + Tor on the wire.</span>
         </div>
         <div class="rail">
           <img class="packet" src="assets/grin-logo.png" alt="" aria-hidden="true">