diff --git a/src/chatmodel.cpp b/src/chatmodel.cpp
index 1561d4e..b799abd 100644
--- a/src/chatmodel.cpp
+++ b/src/chatmodel.cpp
@@ -6,6 +6,8 @@
 #include "ui_mainwindow.h"
 #include "addressbook.h"
 #include "ui_memodialog.h"
+#include "addressbook.h"
+#include <QUuid>
 
 
 
@@ -93,51 +95,23 @@ void ChatModel::renderChatBox(QListWidget *view)
     }
 }
 
-void MainWindow::setupchatTab() {
-       
-// Send button
-    QObject::connect(ui->sendChatButton, &QPushButton::clicked, this, &MainWindow::sendChatButton);
-
-    }
-
-ChatMemoEdit::ChatMemoEdit(QWidget* parent) : QPlainTextEdit(parent) {
-    QObject::connect(this, &QPlainTextEdit::textChanged, this, &ChatMemoEdit::updateDisplay);
-}
-
-void ChatMemoEdit::updateDisplay() {
-    QString txt = this->toPlainText();
-    if (lenDisplayLabel)
-        lenDisplayLabel->setText(QString::number(txt.toUtf8().size()) + "/" + QString::number(maxlen));
-
-    if (txt.toUtf8().size() <= maxlen) {
-        // Everything is fine
-        if (sendChatButton)
-            sendChatButton->setEnabled(true);
-
-        if (lenDisplayLabel)
-            lenDisplayLabel->setStyleSheet("");
-    }
-    else {
-        // Overweight
-        if (sendChatButton)
-            sendChatButton->setEnabled(false);
-
-        if (lenDisplayLabel)
-            lenDisplayLabel->setStyleSheet("color: red;");
-    }
-}
-
-void ChatMemoEdit::setMaxLen(int len) {
-    this->maxlen = len;
-    updateDisplay();
-}
-
-void ChatMemoEdit::setLenDisplayLabel(QLabel* label) {
-    this->lenDisplayLabel = label;
-}
-
-void ChatMemoEdit::setSendChatButton(QPushButton* button) {
-    this->sendChatButton = button;
+QString MainWindow::createHeaderMemo(QString cid, QString zaddr, int version=0, int headerNumber=1)
+{
+    QString header="";
+    QJsonDocument j;
+    QJsonObject h;
+    // We use short keynames to use less space for metadata and so allow
+    // the user to send more actual data in memos
+    h["h"]   = headerNumber;    // header number
+    h["v"]   = version;         // HushChat version
+    h["z"]   = zaddr;           // zaddr to respond to
+    h["cid"] = cid;             // conversation id
+
+    j.setObject(h);
+    header = j.toJson();
+    qDebug() << "made header=" << header;
+
+    return header;
 }
 
 // Create a Tx from the current state of the Chat page. 
@@ -158,13 +132,17 @@ Tx MainWindow::createTxFromChatPage() {
          
             amt = CAmount::fromDecimalString("0.00001");
             totalAmt = totalAmt + amt;
-       
+        QString cid = QString::number( time(NULL) % std::rand() ); // low entropy for testing!
+       // QString cid = QUuid::createUuid().toString(QUuid::WithoutBraces); // Needs to get a fix
+        QString hmemo= createHeaderMemo(cid,"ZADDR");
 
         QString memo = ui->memoTxtChat->toPlainText().trimmed();
-        //ui->chatmemoSize->setLenDisplayLabel()
+       // ui->memoSizeChat->setLenDisplayLabel();
         
        
-     tx.toAddrs.push_back(ToFields{addr, amt, memo,}) ;
+     tx.toAddrs.push_back(ToFields{addr, amt, hmemo.toUtf8().toHex()}) ;
+     qDebug()<<hmemo;
+     tx.toAddrs.push_back( ToFields{addr, amt, memo.toUtf8().toHex()});
 
          qDebug() << "pushback chattx";
    } 
diff --git a/src/chatmodel.h b/src/chatmodel.h
index e893acf..8472028 100644
--- a/src/chatmodel.h
+++ b/src/chatmodel.h
@@ -4,6 +4,7 @@
 #include <map>
 #include <vector>
 #include <QListWidget>
+#include "precompiled.h"
 
 class ChatItem
 {
@@ -117,21 +118,4 @@ class ChatModel
         void addMessage(long timestamp, ChatItem item);
 };
 
-class ChatMemoEdit : public QPlainTextEdit
-{
-public:
-    ChatMemoEdit(QWidget* parent);
-
-    void setMaxLen(int len);
-    void setLenDisplayLabel(QLabel* label);
-    void setSendChatButton(QPushButton* button);
-    void includeReplyTo(QString replyToAddress);
-    void updateDisplay();
-
-private:
-    int             maxlen           = 512;
-    QLabel*         lenDisplayLabel  = nullptr;
-    QPushButton*    sendChatButton     = nullptr;
-};
-
 #endif
\ No newline at end of file
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index b243a6f..a6af0d0 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -983,6 +983,54 @@ void MainWindow::setupTransactionsTab() {
     });
 }
 
+void MainWindow::setupchatTab() {
+       
+// Send button
+    QObject::connect(ui->sendChatButton, &QPushButton::clicked, this, &MainWindow::sendChatButton);
+
+    }
+
+ChatMemoEdit::ChatMemoEdit(QWidget* parent) : QPlainTextEdit(parent) {
+    QObject::connect(this, &QPlainTextEdit::textChanged, this, &ChatMemoEdit::updateDisplay);
+}
+
+void ChatMemoEdit::updateDisplay() {
+    QString txt = this->toPlainText();
+    if (lenDisplayLabel)
+        lenDisplayLabel->setText(QString::number(txt.toUtf8().size()) + "/" + QString::number(maxlen));
+
+    if (txt.toUtf8().size() <= maxlen) {
+        // Everything is fine
+        if (sendChatButton)
+            sendChatButton->setEnabled(true);
+
+        if (lenDisplayLabel)
+            lenDisplayLabel->setStyleSheet("");
+    }
+    else {
+        // Overweight
+        if (sendChatButton)
+            sendChatButton->setEnabled(false);
+
+        if (lenDisplayLabel)
+            lenDisplayLabel->setStyleSheet("color: red;");
+    }
+}
+
+void ChatMemoEdit::setMaxLen(int len) {
+    this->maxlen = len;
+    updateDisplay();
+}
+
+void ChatMemoEdit::setLenDisplayLabel(QLabel* label_40) {
+    this->lenDisplayLabel = label_40;
+}
+
+void ChatMemoEdit::setSendChatButton(QPushButton* button) {
+    this->sendChatButton = button;
+}
+
+
 void MainWindow::updateChat()
 {
     qDebug() << "Called MainWindow::updateChat()";
diff --git a/src/mainwindow.h b/src/mainwindow.h
index 17194b4..6ce5fd5 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -76,6 +76,7 @@ public:
     Logger*      logger;
 
     void doClose();
+    QString createHeaderMemo(QString cid, QString zaddr, int version, int headerNumnber);
 
 public slots:
     void slot_change_theme(const QString& themeName);
@@ -153,4 +154,21 @@ private:
     QMovie*      loadingMovie;
 };
 
+class ChatMemoEdit : public QPlainTextEdit
+{
+public:
+    ChatMemoEdit(QWidget* parent);
+
+    void setMaxLen(int len);
+    void setLenDisplayLabel(QLabel* label_40);
+    void setSendChatButton(QPushButton* button);
+    void includeReplyTo(QString replyToAddress);
+    void updateDisplay();
+
+private:
+    int             maxlen             = 512;
+    QLabel*         lenDisplayLabel    = nullptr;
+    QPushButton*    sendChatButton     = nullptr;
+};
+
 #endif // MAINWINDOW_H
diff --git a/src/mainwindow.ui b/src/mainwindow.ui
index 6d493af..f08d9be 100644
--- a/src/mainwindow.ui
+++ b/src/mainwindow.ui
@@ -1388,14 +1388,6 @@
         </property>
        </widget>
        <widget class="QLabel" name="memoSizeChat">
-        <property name="geometry">
-         <rect>
-          <x>1150</x>
-          <y>460</y>
-          <width>91</width>
-          <height>17</height>
-         </rect>
-        </property>
         <property name="text">
          <string notr="true">0 / 512</string>
         </property>