diff --git a/hush-hush.js b/hush-hush.js
index 130e4bc..d9c9b24 100644
--- a/hush-hush.js
+++ b/hush-hush.js
@@ -17,7 +17,8 @@
 */
 var findMessageIntervalTime = 5000
 var publicNodes = [
-    "yre3tmbu25lcogl42xlh73wfchgbx3unz2zz3ttyiylj6gaq5mzhevid"
+    "yre3tmbu25lcogl42xlh73wfchgbx3unz2zz3ttyiylj6gaq5mzhevid",
+    "ltqmmfww3tue6tibtyfc4kk7edh3owewxwcgrkvwqw4cwgd3w3zcj6id"
 ]
 var messageHashes = []
 var blocks = []
@@ -33,6 +34,8 @@ function shuffleArray(array) {
         [array[i], array[j]] = [array[j], array[i]];
     }
 }
+shuffleArray(publicNodes)
+
 //https://stackoverflow.com/q/10420352
 function getReadableFileSizeString(fileSizeInBytes) {
     var i = -1;
@@ -62,12 +65,22 @@ function getCurrentNode(){
 }
 
 function addMessage(message, timestamp){
+
+    message =  DOMPurify.sanitize(marked(message),
+                                 {FORBID_ATTR: ['style'],
+                                 ALLOWED_TAGS: ['b', 'p', 'em', 'i', 'a',
+                                                'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'pre', 'center', 'br', 'hr']})
+
+    let childEl = document.createElement('div')
+    childEl.classList.add('content')
+    childEl.innerHTML = message
     var tmpl = document.getElementById("cMsgTemplate")
 
     let newEl = tmpl.content.cloneNode(true)
-    newEl.children[0].children[0].children[0].innerText = message
+    newEl.children[0].children[0].children[0].innerText = ""
+    newEl.children[0].children[0].children[0].append(childEl)
     newEl.children[0].children[0].children[2].innerText = timestamp
-    document.getElementsByClassName("messageFeed")[0].append(newEl)
+    document.getElementsByClassName("messageFeed")[0].prepend(newEl)
 }
 
 async function apiGET(path, queryString, raw=false){
@@ -91,6 +104,7 @@ async function findMessages(){
     }
     let messages = (await apiGET("getblocklist", "?type=brd")).split('\n')
     messages.forEach(block => {
+        if (!block) { return}
         block = reconstructHash(block)
         if (!block.startsWith(difficulty)){console.debug("not difficulty reached:" + block); return}
 
@@ -101,20 +115,20 @@ async function findMessages(){
                 // Size is size of data (not metadata) and block hash
                 document.getElementById('memUsage').innerText = getReadableFileSizeString(current + ((basicTextEncoder.encode(data)).length + block.length))
             }
-
+            let metadata = JSON.parse(d.split("\n")[0])
+            console.debug(metadata)
+            //let data = d.split('\n')[1]
+            let data = d.substring(d.indexOf('\n') + 1);
             try{
                 verifyBlock(d, block)
-                verifyTime()
+                verifyTime(metadata['time'])
             }
             catch(e){
                 console.debug(block + ":" + e)
+                return
             }
-
-            let metadata = JSON.parse(d.split("\n")[0])
-            console.debug(metadata)
-            let data = d.split('\n')[1]
             blocks.push(block)
-            addMessage(data, new Date(metadata['time']))
+            addMessage(data, new Date(metadata['time'] * 1000))
             updateMemoryUsage(data, block)
         })
     })
diff --git a/index.html b/index.html
index c08c9ec..b84f9d2 100644
--- a/index.html
+++ b/index.html
@@ -14,6 +14,7 @@
     <link rel="stylesheet" href="style.css">
     <script src="tordetect.js" async></script>
     <script src="marked.min.js" defer></script>
+    <script src="purify.min.js" defer></script>
     <script src="sha3.js" defer></script>
     <script src="onionr-jspow/index.js" defer></script>
     <script src="onionr-blocks.js" defer></script>
@@ -35,7 +36,7 @@
                   JavaScript is required for this app. The server has no knowledge of posts, so content must be served by P2P nodes.
                 </p></noscript>
               <p>kiccan is a message board program that utilizes the <a href="https://onionr.net/">Onionr</a> network.</p>
-              <p>⏲️posts are rate-limited using a partial hash collision proof of work function.</p>
+              <p>posts are rate-limited using a partial hash collision proof of work function.</p>
               <p>⚠️ the host of this web page has no control over posts. Browse and post at your own risk.</p>
               <p class="is-pulled-right">post memory usage: <span id="memUsage">0kb</span></p>
               <p class="is-hidden has-text-warning noTor">You do not seem to be able to reach .onion services. Please use Tor Browser or Brave Browser's private tabs.</p>
@@ -46,7 +47,8 @@
                 <div class="column is-two-fifths">
                     <div class="postForm">
                         <div class="control">
-                            <textarea class="textarea" placeholder="Normal textarea"></textarea>
+                            <p>Markdown is supported, except for images, styles and scripts.</p>
+                            <textarea class="textarea" placeholder="Draft a post..."></textarea>
                         </div>
                     </div>
                 </div>
diff --git a/onionr-blocks.js b/onionr-blocks.js
index a0569cd..a64c7d6 100644
--- a/onionr-blocks.js
+++ b/onionr-blocks.js
@@ -11,4 +11,9 @@ function verifyBlock(raw, hash){
     }
 }
 
-
+function verifyTime(time){
+    let epoch = Math.round(Date.now() / 1000);
+    if ((epoch - time) > maxBlockAge){
+        throw new Error("Block is too old")
+    }
+}
diff --git a/peer-lookup.js b/peer-lookup.js
index 0711238..56355c6 100644
--- a/peer-lookup.js
+++ b/peer-lookup.js
@@ -21,7 +21,8 @@ self.addEventListener('message', async function(e) {
     let lookupPeer = async function(peer){
         let newList = await (await fetch('http://' + peer + '.onion/pex')).text()
 
-        newList = newList.replace('.onion', '')
+        newList = newList.replaceAll('.onion', '')
+
         return newList.split(',')
     }
     var data = JSON.parse(e.data)
diff --git a/purify.min.js b/purify.min.js
new file mode 100644
index 0000000..39a1d08
--- /dev/null
+++ b/purify.min.js
@@ -0,0 +1,3 @@
+/*! @license DOMPurify | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/2.0.8/LICENSE */
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+//# sourceMappingURL=purify.min.js.map
diff --git a/style.css b/style.css
index b210f59..bff520e 100644
--- a/style.css
+++ b/style.css
@@ -4,4 +4,4 @@
 
 .messageCreator{
     margin-bottom: 1em;
-}
\ No newline at end of file
+}