diff --git a/Makefile.Debug b/Makefile.Debug
index acec8a29de..55ca54267e 100644
--- a/Makefile.Debug
+++ b/Makefile.Debug
@@ -1,6 +1,6 @@
 #############################################################################
 # Makefile for building: gridcoinresearch
-# Generated by qmake (2.01a) (Qt 4.8.4) on: Fri Apr 22 17:08:10 2016
+# Generated by qmake (2.01a) (Qt 4.8.4) on: Sat Apr 23 10:25:02 2016
 # Project:  gridcoinresearch.pro
 # Template: app
 #############################################################################
diff --git a/Makefile.Release b/Makefile.Release
index cdb472f1c3..7c1adfac44 100644
--- a/Makefile.Release
+++ b/Makefile.Release
@@ -1,6 +1,6 @@
 #############################################################################
 # Makefile for building: gridcoinresearch
-# Generated by qmake (2.01a) (Qt 4.8.4) on: Fri Apr 22 17:08:10 2016
+# Generated by qmake (2.01a) (Qt 4.8.4) on: Sat Apr 23 10:25:02 2016
 # Project:  gridcoinresearch.pro
 # Template: app
 #############################################################################
diff --git a/src/clientversion.h b/src/clientversion.h
index 5a663fd377..9c2d400a09 100644
--- a/src/clientversion.h
+++ b/src/clientversion.h
@@ -9,7 +9,7 @@
 #define CLIENT_VERSION_MAJOR       3
 #define CLIENT_VERSION_MINOR       5
 #define CLIENT_VERSION_REVISION    6
-#define CLIENT_VERSION_BUILD       2
+#define CLIENT_VERSION_BUILD       3
 
 // Converts the parameter X to a string after macro replacement on X has been performed.
 // Don't merge these into one macro!
diff --git a/src/rpcrawtransaction.cpp b/src/rpcrawtransaction.cpp
index 4be1891a70..f43446d3ac 100644
--- a/src/rpcrawtransaction.cpp
+++ b/src/rpcrawtransaction.cpp
@@ -12,7 +12,7 @@
 #include "main.h"
 #include "net.h"
 #include "wallet.h"
-
+//#include "univalue.h"
 #include "upgrader.h"
 
 using namespace std;
@@ -467,6 +467,7 @@ Value createrawtransaction(const Array& params, bool fHelp)
 
     Array inputs = params[0].get_array();
     Object sendTo = params[1].get_obj();
+	//UniValue sendTo2 = params[1].get_obj();
 
     CTransaction rawTx;
 
@@ -497,7 +498,7 @@ Value createrawtransaction(const Array& params, bool fHelp)
     {
 		 if (s.name_ == "data") 
 		 {
-            std::vector<unsigned char> data = ParseHexV(params[1],"Data");
+            std::vector<unsigned char> data = ParseHexV(s.value_,"Data");
             CTxOut out(0, CScript() << OP_RETURN << data);
             rawTx.vout.push_back(out);
         }
diff --git a/src/univalue.cpp b/src/univalue.cpp
new file mode 100644
index 0000000000..b1c7c5733c
--- /dev/null
+++ b/src/univalue.cpp
@@ -0,0 +1,302 @@
+// Copyright 2014 BitPay Inc.
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <stdint.h>
+#include <ctype.h>
+#include <iomanip>
+#include <sstream>
+#include <stdexcept>      // std::runtime_error
+
+#include "univalue.h"
+
+#include "utilstrencodings.h" // ParseXX
+
+using namespace std;
+
+const UniValue NullUniValue;
+
+void UniValue::clear()
+{
+    typ = VNULL;
+    val.clear();
+    keys.clear();
+    values.clear();
+}
+
+bool UniValue::setNull()
+{
+    clear();
+    return true;
+}
+
+bool UniValue::setBool(bool val_)
+{
+    clear();
+    typ = VBOOL;
+    if (val_)
+        val = "1";
+    return true;
+}
+
+static bool validNumStr(const string& s)
+{
+    string tokenVal;
+    unsigned int consumed;
+    enum jtokentype tt = getJsonToken(tokenVal, consumed, s.c_str());
+    return (tt == JTOK_NUMBER);
+}
+
+bool UniValue::setNumStr(const string& val_)
+{
+    if (!validNumStr(val_))
+        return false;
+
+    clear();
+    typ = VNUM;
+    val = val_;
+    return true;
+}
+
+bool UniValue::setInt(uint64_t val)
+{
+    string s;
+    ostringstream oss;
+
+    oss << val;
+
+    return setNumStr(oss.str());
+}
+
+bool UniValue::setInt(int64_t val)
+{
+    string s;
+    ostringstream oss;
+
+    oss << val;
+
+    return setNumStr(oss.str());
+}
+
+bool UniValue::setFloat(double val)
+{
+    string s;
+    ostringstream oss;
+
+    oss << std::setprecision(16) << val;
+
+    bool ret = setNumStr(oss.str());
+    typ = VNUM;
+    return ret;
+}
+
+bool UniValue::setStr(const string& val_)
+{
+    clear();
+    typ = VSTR;
+    val = val_;
+    return true;
+}
+
+bool UniValue::setArray()
+{
+    clear();
+    typ = VARR;
+    return true;
+}
+
+bool UniValue::setObject()
+{
+    clear();
+    typ = VOBJ;
+    return true;
+}
+
+bool UniValue::push_back(const UniValue& val)
+{
+    if (typ != VARR)
+        return false;
+
+    values.push_back(val);
+    return true;
+}
+
+bool UniValue::push_backV(const std::vector<UniValue>& vec)
+{
+    if (typ != VARR)
+        return false;
+
+    values.insert(values.end(), vec.begin(), vec.end());
+
+    return true;
+}
+
+bool UniValue::pushKV(const std::string& key, const UniValue& val)
+{
+    if (typ != VOBJ)
+        return false;
+
+    keys.push_back(key);
+    values.push_back(val);
+    return true;
+}
+
+bool UniValue::pushKVs(const UniValue& obj)
+{
+    if (typ != VOBJ || obj.typ != VOBJ)
+        return false;
+
+    for (unsigned int i = 0; i < obj.keys.size(); i++) {
+        keys.push_back(obj.keys[i]);
+        values.push_back(obj.values[i]);
+    }
+
+    return true;
+}
+
+int UniValue::findKey(const std::string& key) const
+{
+    for (unsigned int i = 0; i < keys.size(); i++) {
+        if (keys[i] == key)
+            return (int) i;
+    }
+
+    return -1;
+}
+
+bool UniValue::checkObject(const std::map<std::string,UniValue::VType>& t)
+{
+    for (std::map<std::string,UniValue::VType>::const_iterator it = t.begin();
+         it != t.end(); it++) {
+        int idx = findKey(it->first);
+        if (idx < 0)
+            return false;
+
+        if (values[idx].getType() != it->second)
+            return false;
+    }
+
+    return true;
+}
+
+const UniValue& UniValue::operator[](const std::string& key) const
+{
+    if (typ != VOBJ)
+        return NullUniValue;
+
+    int index = findKey(key);
+    if (index < 0)
+        return NullUniValue;
+
+    return values[index];
+}
+
+const UniValue& UniValue::operator[](unsigned int index) const
+{
+    if (typ != VOBJ && typ != VARR)
+        return NullUniValue;
+    if (index >= values.size())
+        return NullUniValue;
+
+    return values[index];
+}
+
+const char *uvTypeName(UniValue::VType t)
+{
+    switch (t) {
+    case UniValue::VNULL: return "null";
+    case UniValue::VBOOL: return "bool";
+    case UniValue::VOBJ: return "object";
+    case UniValue::VARR: return "array";
+    case UniValue::VSTR: return "string";
+    case UniValue::VNUM: return "number";
+    }
+
+    // not reached
+    return NULL;
+}
+
+const UniValue& find_value( const UniValue& obj, const std::string& name)
+{
+    for (unsigned int i = 0; i < obj.keys.size(); i++)
+    {
+        if( obj.keys[i] == name )
+        {
+            return obj.values[i];
+        }
+    }
+
+    return NullUniValue;
+}
+
+std::vector<std::string> UniValue::getKeys() const
+{
+    if (typ != VOBJ)
+        throw std::runtime_error("JSON value is not an object as expected");
+    return keys;
+}
+
+std::vector<UniValue> UniValue::getValues() const
+{
+    if (typ != VOBJ && typ != VARR)
+        throw std::runtime_error("JSON value is not an object or array as expected");
+    return values;
+}
+
+bool UniValue::get_bool() const
+{
+    if (typ != VBOOL)
+        throw std::runtime_error("JSON value is not a boolean as expected");
+    return getBool();
+}
+
+std::string UniValue::get_str() const
+{
+    if (typ != VSTR)
+        throw std::runtime_error("JSON value is not a string as expected");
+    return getValStr();
+}
+
+int UniValue::get_int() const
+{
+    if (typ != VNUM)
+        throw std::runtime_error("JSON value is not an integer as expected");
+    int32_t retval;
+    if (!ParseInt32(getValStr(), &retval))
+        throw std::runtime_error("JSON integer out of range");
+    return retval;
+}
+
+int64_t UniValue::get_int64() const
+{
+    if (typ != VNUM)
+        throw std::runtime_error("JSON value is not an integer as expected");
+    int64_t retval;
+    if (!ParseInt64(getValStr(), &retval))
+        throw std::runtime_error("JSON integer out of range");
+    return retval;
+}
+
+double UniValue::get_real() const
+{
+    if (typ != VNUM)
+        throw std::runtime_error("JSON value is not a number as expected");
+    double retval;
+    if (!ParseDouble(getValStr(), &retval))
+        throw std::runtime_error("JSON double out of range");
+    return retval;
+}
+
+const UniValue& UniValue::get_obj() const
+{
+    if (typ != VOBJ)
+        throw std::runtime_error("JSON value is not an object as expected");
+    return *this;
+}
+
+const UniValue& UniValue::get_array() const
+{
+    if (typ != VARR)
+        throw std::runtime_error("JSON value is not an array as expected");
+    return *this;
+}
diff --git a/src/univalue.h b/src/univalue.h
new file mode 100644
index 0000000000..27d68d909a
--- /dev/null
+++ b/src/univalue.h
@@ -0,0 +1,283 @@
+// Copyright 2014 BitPay Inc.
+// Copyright 2015 Bitcoin Core Developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef __UNIVALUE_H__
+#define __UNIVALUE_H__
+
+#include <stdint.h>
+
+#include <string>
+#include <vector>
+#include <map>
+#include <cassert>
+
+#include <sstream>        // .get_int64()
+#include <utility>        // std::pair
+
+class UniValue {
+public:
+    enum VType { VNULL, VOBJ, VARR, VSTR, VNUM, VBOOL, };
+
+    UniValue() { typ = VNULL; }
+    UniValue(UniValue::VType initialType, const std::string& initialStr = "") {
+        typ = initialType;
+        val = initialStr;
+    }
+    UniValue(uint64_t val_) {
+        setInt(val_);
+    }
+    UniValue(int64_t val_) {
+        setInt(val_);
+    }
+    UniValue(bool val_) {
+        setBool(val_);
+    }
+    UniValue(int val_) {
+        setInt(val_);
+    }
+    UniValue(double val_) {
+        setFloat(val_);
+    }
+    UniValue(const std::string& val_) {
+        setStr(val_);
+    }
+    UniValue(const char *val_) {
+        std::string s(val_);
+        setStr(s);
+    }
+    ~UniValue() {}
+
+    void clear();
+
+    bool setNull();
+    bool setBool(bool val);
+    bool setNumStr(const std::string& val);
+    bool setInt(uint64_t val);
+    bool setInt(int64_t val);
+    bool setInt(int val) { return setInt((int64_t)val); }
+    bool setFloat(double val);
+    bool setStr(const std::string& val);
+    bool setArray();
+    bool setObject();
+
+    enum VType getType() const { return typ; }
+    const std::string& getValStr() const { return val; }
+    bool empty() const { return (values.size() == 0); }
+
+    size_t size() const { return values.size(); }
+
+    bool getBool() const { return isTrue(); }
+    bool checkObject(const std::map<std::string,UniValue::VType>& memberTypes);
+    const UniValue& operator[](const std::string& key) const;
+    const UniValue& operator[](unsigned int index) const;
+    bool exists(const std::string& key) const { return (findKey(key) >= 0); }
+
+    bool isNull() const { return (typ == VNULL); }
+    bool isTrue() const { return (typ == VBOOL) && (val == "1"); }
+    bool isFalse() const { return (typ == VBOOL) && (val != "1"); }
+    bool isBool() const { return (typ == VBOOL); }
+    bool isStr() const { return (typ == VSTR); }
+    bool isNum() const { return (typ == VNUM); }
+    bool isArray() const { return (typ == VARR); }
+    bool isObject() const { return (typ == VOBJ); }
+
+    bool push_back(const UniValue& val);
+    bool push_back(const std::string& val_) {
+        UniValue tmpVal(VSTR, val_);
+        return push_back(tmpVal);
+    }
+    bool push_back(const char *val_) {
+        std::string s(val_);
+        return push_back(s);
+    }
+    bool push_backV(const std::vector<UniValue>& vec);
+
+    bool pushKV(const std::string& key, const UniValue& val);
+    bool pushKV(const std::string& key, const std::string& val) {
+        UniValue tmpVal(VSTR, val);
+        return pushKV(key, tmpVal);
+    }
+    bool pushKV(const std::string& key, const char *val_) {
+        std::string val(val_);
+        return pushKV(key, val);
+    }
+    bool pushKV(const std::string& key, int64_t val) {
+        UniValue tmpVal(val);
+        return pushKV(key, tmpVal);
+    }
+    bool pushKV(const std::string& key, uint64_t val) {
+        UniValue tmpVal(val);
+        return pushKV(key, tmpVal);
+    }
+    bool pushKV(const std::string& key, int val) {
+        UniValue tmpVal((int64_t)val);
+        return pushKV(key, tmpVal);
+    }
+    bool pushKV(const std::string& key, double val) {
+        UniValue tmpVal(val);
+        return pushKV(key, tmpVal);
+    }
+    bool pushKVs(const UniValue& obj);
+
+    std::string write(unsigned int prettyIndent = 0,
+                      unsigned int indentLevel = 0) const;
+
+    bool read(const char *raw);
+    bool read(const std::string& rawStr) {
+        return read(rawStr.c_str());
+    }
+
+private:
+    UniValue::VType typ;
+    std::string val;                       // numbers are stored as C++ strings
+    std::vector<std::string> keys;
+    std::vector<UniValue> values;
+
+    int findKey(const std::string& key) const;
+    void writeArray(unsigned int prettyIndent, unsigned int indentLevel, std::string& s) const;
+    void writeObject(unsigned int prettyIndent, unsigned int indentLevel, std::string& s) const;
+
+public:
+    // Strict type-specific getters, these throw std::runtime_error if the
+    // value is of unexpected type
+    std::vector<std::string> getKeys() const;
+    std::vector<UniValue> getValues() const;
+    bool get_bool() const;
+    std::string get_str() const;
+    int get_int() const;
+    int64_t get_int64() const;
+    double get_real() const;
+    const UniValue& get_obj() const;
+    const UniValue& get_array() const;
+
+    enum VType type() const { return getType(); }
+    bool push_back(std::pair<std::string,UniValue> pear) {
+        return pushKV(pear.first, pear.second);
+    }
+    friend const UniValue& find_value( const UniValue& obj, const std::string& name);
+};
+
+//
+// The following were added for compatibility with json_spirit.
+// Most duplicate other methods, and should be removed.
+//
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, const char *cVal)
+{
+    std::string key(cKey);
+    UniValue uVal(cVal);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, std::string strVal)
+{
+    std::string key(cKey);
+    UniValue uVal(strVal);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, uint64_t u64Val)
+{
+    std::string key(cKey);
+    UniValue uVal(u64Val);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, int64_t i64Val)
+{
+    std::string key(cKey);
+    UniValue uVal(i64Val);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, bool iVal)
+{
+    std::string key(cKey);
+    UniValue uVal(iVal);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, int iVal)
+{
+    std::string key(cKey);
+    UniValue uVal(iVal);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, double dVal)
+{
+    std::string key(cKey);
+    UniValue uVal(dVal);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, const UniValue& uVal)
+{
+    std::string key(cKey);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(std::string key, const UniValue& uVal)
+{
+    return std::make_pair(key, uVal);
+}
+
+enum jtokentype {
+    JTOK_ERR        = -1,
+    JTOK_NONE       = 0,                           // eof
+    JTOK_OBJ_OPEN,
+    JTOK_OBJ_CLOSE,
+    JTOK_ARR_OPEN,
+    JTOK_ARR_CLOSE,
+    JTOK_COLON,
+    JTOK_COMMA,
+    JTOK_KW_NULL,
+    JTOK_KW_TRUE,
+    JTOK_KW_FALSE,
+    JTOK_NUMBER,
+    JTOK_STRING,
+};
+
+extern enum jtokentype getJsonToken(std::string& tokenVal,
+                                    unsigned int& consumed, const char *raw);
+extern const char *uvTypeName(UniValue::VType t);
+
+static inline bool jsonTokenIsValue(enum jtokentype jtt)
+{
+    switch (jtt) {
+    case JTOK_KW_NULL:
+    case JTOK_KW_TRUE:
+    case JTOK_KW_FALSE:
+    case JTOK_NUMBER:
+    case JTOK_STRING:
+        return true;
+
+    default:
+        return false;
+    }
+
+    // not reached
+}
+
+static inline bool json_isspace(int ch)
+{
+    switch (ch) {
+    case 0x20:
+    case 0x09:
+    case 0x0a:
+    case 0x0d:
+        return true;
+
+    default:
+        return false;
+    }
+
+    // not reached
+}
+
+extern const UniValue NullUniValue;
+
+const UniValue& find_value( const UniValue& obj, const std::string& name);
+
+#endif // __UNIVALUE_H__
\ No newline at end of file