diff --git a/dist/ethereum.js b/dist/ethereum.js
index 8da182c06..88b132005 100644
--- a/dist/ethereum.js
+++ b/dist/ethereum.js
@@ -55,56 +55,52 @@ var padLeft = function (string, chars) {
     return new Array(chars - string.length + 1).join("0") + string;
 };
 
+/// Setups input formatters for solidity types
+/// @returns an array of input formatters 
 var setupInputTypes = function () {
     
     var prefixedType = function (prefix) {
         return function (type, value) {
-            var expected = prefix;
-            if (type.indexOf(expected) !== 0) {
-                return false;
-            }
-
-            var padding = 32;   // override as per the new ABI.
-
-            if (prefix === "string")
-                return web3.fromAscii(value, padding).substr(2);
-            if (typeof value === "number")
-                value = value.toString(16);
-            else if (typeof value === "string")
-                value = web3.toHex(value); 
-            else if (value.indexOf('0x') === 0)
-                value = value.substr(2);
-            else
-                value = (+value).toString(16);
-            return padLeft(value, padding * 2);
+            return type.indexOf(prefix) === 0;
         };
     };
 
     var namedType = function (name, formatter) {
         return function (type, value) {
-            if (type !== name) {
-                return false;
-            }
-
-            var padding = 32;   //override as per the new ABI.
-
-            return padLeft(formatter ? formatter(value) : value, padding * 2);
+            return type === name;
         };
     };
+    
+    var formatInt = function (value) {
+        var padding = 32 * 2;
+        if (typeof value === 'number')
+            value = value.toString(16);
+        else if (value.indexOf('0x') === 0)
+            value = value.substr(2);
+        else if (typeof value === 'string')
+            value = value.toHex(value);
+        else
+            value = (+value).toString(16);
+        return padLeft(value, padding);
+    };
+
+    var formatString = function (value) {
+        return web3.fromAscii(value, 32).substr(2);
+    };
 
     var formatBool = function (value) {
-        return value ? '0x1' : '0x0';
+        return '000000000000000000000000000000000000000000000000000000000000000' + (value ?  '1' : '0');
     };
 
     return [
-        prefixedType('uint'),
-        prefixedType('int'),
-        prefixedType('hash'),
-        prefixedType('string'),
-        prefixedType('real'),
-        prefixedType('ureal'),
-        namedType('address'),
-        namedType('bool', formatBool),
+        { type: prefixedType('uint'), format: formatInt },
+        { type: prefixedType('int'), format: formatInt },
+        { type: prefixedType('hash'), format: formatInt },
+        { type: prefixedType('string'), format: formatString }, 
+        { type: prefixedType('real'), format: formatInt },
+        { type: prefixedType('ureal'), format: formatInt },
+        { type: namedType('address') },
+        { type: namedType('bool'), format: formatBool }
     ];
 };
 
@@ -119,65 +115,73 @@ var toAbiInput = function (json, methodName, params) {
     }
 
     var method = json[index];
+    var padding = 32 * 2;
 
     for (var i = 0; i < method.inputs.length; i++) {
-        var found = false;
-        for (var j = 0; j < inputTypes.length && !found; j++) {
-            found = inputTypes[j](method.inputs[i].type, params[i]);
+        var typeMatch = false;
+        for (var j = 0; j < inputTypes.length && !typeMatch; j++) {
+            typeMatch = inputTypes[j].type(method.inputs[i].type, params[i]);
         }
-        if (!found) {
-            console.error('unsupported json type: ' + method.inputs[i].type);
+        if (!typeMatch) {
+            console.error('input parser does not support type: ' + method.inputs[i].type);
         }
-        bytes += found;
+
+        var formatter = inputTypes[j - 1].format;
+        bytes += (formatter ? formatter(params[i]) : params[i]);
     }
     return bytes;
 };
 
+/// Setups output formaters for solidity types
+/// @returns an array of output formatters
 var setupOutputTypes = function () {
 
+    /// @param expected type prefix (string)
+    /// @returns function which checks if type has matching prefix. if yes, returns true, otherwise false
     var prefixedType = function (prefix) {
         return function (type) {
             var expected = prefix;
-            if (type.indexOf(expected) !== 0) {
-                return -1;
-            }
-            var padding = 32;  // override as per the new ABI.
-            return padding * 2;
+            return type.indexOf(expected) === 0;
         };
     };
 
+    /// @param expected type name (string)
+    /// @returns function which checks if type is matching expected one. if yes, returns true, otherwise false
     var namedType = function (name) {
         return function (type) {
-            var padding = 32;  // override as per the new ABI.
-            return name === type ? padding * 2 : -1;
+            return name === type;
         };
     };
 
+    /// @returns input bytes formatted to int
     var formatInt = function (value) {
         return value.length <= 8 ? +parseInt(value, 16) : hexToDec(value);
     };
 
+    /// @returns input bytes formatted to hex
     var formatHash = function (value) {
         return "0x" + value;
     };
 
+    /// @returns input bytes formatted to bool
     var formatBool = function (value) {
-        return value === '1' ? true : false;
+        return value === '0000000000000000000000000000000000000000000000000000000000000001' ? true : false;
     };
 
+    /// @returns input bytes formatted to ascii string
     var formatString = function (value) {
         return web3.toAscii(value);
     };
 
     return [
-    { padding: prefixedType('uint'), format: formatInt },
-    { padding: prefixedType('int'), format: formatInt },
-    { padding: prefixedType('hash'), format: formatHash },
-    { padding: prefixedType('string'), format: formatString },
-    { padding: prefixedType('real'), format: formatInt },
-    { padding: prefixedType('ureal'), format: formatInt },
-    { padding: namedType('address') },
-    { padding: namedType('bool'), format: formatBool }
+        { type: prefixedType('uint'), format: formatInt },
+        { type: prefixedType('int'), format: formatInt },
+        { type: prefixedType('hash'), format: formatHash },
+        { type: prefixedType('string'), format: formatString },
+        { type: prefixedType('real'), format: formatInt },
+        { type: prefixedType('ureal'), format: formatInt },
+        { type: namedType('address') },
+        { type: namedType('bool'), format: formatBool }
     ];
 };
 
@@ -194,14 +198,16 @@ var fromAbiOutput = function (json, methodName, output) {
 
     var result = [];
     var method = json[index];
+    var padding = 32 * 2;
     for (var i = 0; i < method.outputs.length; i++) {
-        var padding = -1;
-        for (var j = 0; j < outputTypes.length && padding === -1; j++) {
-            padding = outputTypes[j].padding(method.outputs[i].type);
+        var typeMatch = false;
+        for (var j = 0; j < outputTypes.length && !typeMatch; j++) {
+            typeMatch = outputTypes[j].type(method.outputs[i].type);
         }
 
-        if (padding === -1) {
+        if (!typeMatch) {
             // not found output parsing
+            console.error('output parser does not support type: ' + method.outputs[i].type);
             continue;
         }
         var res = output.slice(0, padding);
@@ -213,6 +219,8 @@ var fromAbiOutput = function (json, methodName, output) {
     return result;
 };
 
+/// @param json abi for contract
+/// @returns input parser object for given json abi
 var inputParser = function (json) {
     var parser = {};
     json.forEach(function (method) {
@@ -225,6 +233,8 @@ var inputParser = function (json) {
     return parser;
 };
 
+/// @param json abi for contract
+/// @returns output parser for given json abi
 var outputParser = function (json) {
     var parser = {};
     json.forEach(function (method) {
@@ -236,6 +246,9 @@ var outputParser = function (json) {
     return parser;
 };
 
+/// @param json abi for contract
+/// @param method name for which we want to get method signature
+/// @returns (promise) contract method signature for method with given name
 var methodSignature = function (json, name) {
     var method = json[findMethodIndex(json, name)];
     var result = name + '(';
diff --git a/dist/ethereum.js.map b/dist/ethereum.js.map
index c331a38ce..73415d401 100644
--- a/dist/ethereum.js.map
+++ b/dist/ethereum.js.map
@@ -14,12 +14,12 @@
     "index.js"
   ],
   "names": [],
-  "mappings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n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zFA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AC9HA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AC1HA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;ACzDA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;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+  "mappings": 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   "file": "generated.js",
   "sourceRoot": "",
   "sourcesContent": [
     "(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})",
-    "/*\n    This file is part of ethereum.js.\n\n    ethereum.js is free software: you can redistribute it and/or modify\n    it under the terms of the GNU Lesser General Public License as published by\n    the Free Software Foundation, either version 3 of the License, or\n    (at your option) any later version.\n\n    ethereum.js is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Lesser General Public License for more details.\n\n    You should have received a copy of the GNU Lesser General Public License\n    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.\n*/\n/** @file abi.js\n * @authors:\n *   Marek Kotewicz <marek@ethdev.com>\n *   Gav Wood <g@ethdev.com>\n * @date 2014\n */\n\n// TODO: is these line is supposed to be here? \nif (\"build\" !== 'build') {/*\n    var web3 = require('./web3'); // jshint ignore:line\n*/}\n\n// TODO: make these be actually accurate instead of falling back onto JS's doubles.\nvar hexToDec = function (hex) {\n    return parseInt(hex, 16).toString();\n};\n\nvar decToHex = function (dec) {\n    return parseInt(dec).toString(16);\n};\n\nvar findIndex = function (array, callback) {\n    var end = false;\n    var i = 0;\n    for (; i < array.length && !end; i++) {\n        end = callback(array[i]);\n    }\n    return end ? i - 1 : -1;\n};\n\nvar findMethodIndex = function (json, methodName) {\n    return findIndex(json, function (method) {\n        return method.name === methodName;\n    });\n};\n\nvar padLeft = function (string, chars) {\n    return new Array(chars - string.length + 1).join(\"0\") + string;\n};\n\nvar setupInputTypes = function () {\n    \n    var prefixedType = function (prefix) {\n        return function (type, value) {\n            var expected = prefix;\n            if (type.indexOf(expected) !== 0) {\n                return false;\n            }\n\n            var padding = 32;   // override as per the new ABI.\n\n            if (prefix === \"string\")\n                return web3.fromAscii(value, padding).substr(2);\n            if (typeof value === \"number\")\n                value = value.toString(16);\n            else if (typeof value === \"string\")\n                value = web3.toHex(value); \n            else if (value.indexOf('0x') === 0)\n                value = value.substr(2);\n            else\n                value = (+value).toString(16);\n            return padLeft(value, padding * 2);\n        };\n    };\n\n    var namedType = function (name, formatter) {\n        return function (type, value) {\n            if (type !== name) {\n                return false;\n            }\n\n            var padding = 32;   //override as per the new ABI.\n\n            return padLeft(formatter ? formatter(value) : value, padding * 2);\n        };\n    };\n\n    var formatBool = function (value) {\n        return value ? '0x1' : '0x0';\n    };\n\n    return [\n        prefixedType('uint'),\n        prefixedType('int'),\n        prefixedType('hash'),\n        prefixedType('string'),\n        prefixedType('real'),\n        prefixedType('ureal'),\n        namedType('address'),\n        namedType('bool', formatBool),\n    ];\n};\n\nvar inputTypes = setupInputTypes();\n\nvar toAbiInput = function (json, methodName, params) {\n    var bytes = \"\";\n    var index = findMethodIndex(json, methodName);\n\n    if (index === -1) {\n        return;\n    }\n\n    var method = json[index];\n\n    for (var i = 0; i < method.inputs.length; i++) {\n        var found = false;\n        for (var j = 0; j < inputTypes.length && !found; j++) {\n            found = inputTypes[j](method.inputs[i].type, params[i]);\n        }\n        if (!found) {\n            console.error('unsupported json type: ' + method.inputs[i].type);\n        }\n        bytes += found;\n    }\n    return bytes;\n};\n\nvar setupOutputTypes = function () {\n\n    var prefixedType = function (prefix) {\n        return function (type) {\n            var expected = prefix;\n            if (type.indexOf(expected) !== 0) {\n                return -1;\n            }\n            var padding = 32;  // override as per the new ABI.\n            return padding * 2;\n        };\n    };\n\n    var namedType = function (name) {\n        return function (type) {\n            var padding = 32;  // override as per the new ABI.\n            return name === type ? padding * 2 : -1;\n        };\n    };\n\n    var formatInt = function (value) {\n        return value.length <= 8 ? +parseInt(value, 16) : hexToDec(value);\n    };\n\n    var formatHash = function (value) {\n        return \"0x\" + value;\n    };\n\n    var formatBool = function (value) {\n        return value === '1' ? true : false;\n    };\n\n    var formatString = function (value) {\n        return web3.toAscii(value);\n    };\n\n    return [\n    { padding: prefixedType('uint'), format: formatInt },\n    { padding: prefixedType('int'), format: formatInt },\n    { padding: prefixedType('hash'), format: formatHash },\n    { padding: prefixedType('string'), format: formatString },\n    { padding: prefixedType('real'), format: formatInt },\n    { padding: prefixedType('ureal'), format: formatInt },\n    { padding: namedType('address') },\n    { padding: namedType('bool'), format: formatBool }\n    ];\n};\n\nvar outputTypes = setupOutputTypes();\n\nvar fromAbiOutput = function (json, methodName, output) {\n    var index = findMethodIndex(json, methodName);\n\n    if (index === -1) {\n        return;\n    }\n\n    output = output.slice(2);\n\n    var result = [];\n    var method = json[index];\n    for (var i = 0; i < method.outputs.length; i++) {\n        var padding = -1;\n        for (var j = 0; j < outputTypes.length && padding === -1; j++) {\n            padding = outputTypes[j].padding(method.outputs[i].type);\n        }\n\n        if (padding === -1) {\n            // not found output parsing\n            continue;\n        }\n        var res = output.slice(0, padding);\n        var formatter = outputTypes[j - 1].format;\n        result.push(formatter ? formatter(res) : (\"0x\" + res));\n        output = output.slice(padding);\n    }\n\n    return result;\n};\n\nvar inputParser = function (json) {\n    var parser = {};\n    json.forEach(function (method) {\n        parser[method.name] = function () {\n            var params = Array.prototype.slice.call(arguments);\n            return toAbiInput(json, method.name, params);\n        };\n    });\n\n    return parser;\n};\n\nvar outputParser = function (json) {\n    var parser = {};\n    json.forEach(function (method) {\n        parser[method.name] = function (output) {\n            return fromAbiOutput(json, method.name, output);\n        };\n    });\n\n    return parser;\n};\n\nvar methodSignature = function (json, name) {\n    var method = json[findMethodIndex(json, name)];\n    var result = name + '(';\n    var inputTypes = method.inputs.map(function (inp) {\n        return inp.type;\n    });\n    result += inputTypes.join(',');\n    result += ')';\n\n    return web3.sha3(web3.fromAscii(result));\n};\n\nmodule.exports = {\n    inputParser: inputParser,\n    outputParser: outputParser,\n    methodSignature: methodSignature\n};\n\n",
+    "/*\n    This file is part of ethereum.js.\n\n    ethereum.js is free software: you can redistribute it and/or modify\n    it under the terms of the GNU Lesser General Public License as published by\n    the Free Software Foundation, either version 3 of the License, or\n    (at your option) any later version.\n\n    ethereum.js is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Lesser General Public License for more details.\n\n    You should have received a copy of the GNU Lesser General Public License\n    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.\n*/\n/** @file abi.js\n * @authors:\n *   Marek Kotewicz <marek@ethdev.com>\n *   Gav Wood <g@ethdev.com>\n * @date 2014\n */\n\n// TODO: is these line is supposed to be here? \nif (\"build\" !== 'build') {/*\n    var web3 = require('./web3'); // jshint ignore:line\n*/}\n\n// TODO: make these be actually accurate instead of falling back onto JS's doubles.\nvar hexToDec = function (hex) {\n    return parseInt(hex, 16).toString();\n};\n\nvar decToHex = function (dec) {\n    return parseInt(dec).toString(16);\n};\n\nvar findIndex = function (array, callback) {\n    var end = false;\n    var i = 0;\n    for (; i < array.length && !end; i++) {\n        end = callback(array[i]);\n    }\n    return end ? i - 1 : -1;\n};\n\nvar findMethodIndex = function (json, methodName) {\n    return findIndex(json, function (method) {\n        return method.name === methodName;\n    });\n};\n\nvar padLeft = function (string, chars) {\n    return new Array(chars - string.length + 1).join(\"0\") + string;\n};\n\n/// Setups input formatters for solidity types\n/// @returns an array of input formatters \nvar setupInputTypes = function () {\n    \n    var prefixedType = function (prefix) {\n        return function (type, value) {\n            return type.indexOf(prefix) === 0;\n        };\n    };\n\n    var namedType = function (name, formatter) {\n        return function (type, value) {\n            return type === name;\n        };\n    };\n    \n    var formatInt = function (value) {\n        var padding = 32 * 2;\n        if (typeof value === 'number')\n            value = value.toString(16);\n        else if (value.indexOf('0x') === 0)\n            value = value.substr(2);\n        else if (typeof value === 'string')\n            value = value.toHex(value);\n        else\n            value = (+value).toString(16);\n        return padLeft(value, padding);\n    };\n\n    var formatString = function (value) {\n        return web3.fromAscii(value, 32).substr(2);\n    };\n\n    var formatBool = function (value) {\n        return '000000000000000000000000000000000000000000000000000000000000000' + (value ?  '1' : '0');\n    };\n\n    return [\n        { type: prefixedType('uint'), format: formatInt },\n        { type: prefixedType('int'), format: formatInt },\n        { type: prefixedType('hash'), format: formatInt },\n        { type: prefixedType('string'), format: formatString }, \n        { type: prefixedType('real'), format: formatInt },\n        { type: prefixedType('ureal'), format: formatInt },\n        { type: namedType('address') },\n        { type: namedType('bool'), format: formatBool }\n    ];\n};\n\nvar inputTypes = setupInputTypes();\n\nvar toAbiInput = function (json, methodName, params) {\n    var bytes = \"\";\n    var index = findMethodIndex(json, methodName);\n\n    if (index === -1) {\n        return;\n    }\n\n    var method = json[index];\n    var padding = 32 * 2;\n\n    for (var i = 0; i < method.inputs.length; i++) {\n        var typeMatch = false;\n        for (var j = 0; j < inputTypes.length && !typeMatch; j++) {\n            typeMatch = inputTypes[j].type(method.inputs[i].type, params[i]);\n        }\n        if (!typeMatch) {\n            console.error('input parser does not support type: ' + method.inputs[i].type);\n        }\n\n        var formatter = inputTypes[j - 1].format;\n        bytes += (formatter ? formatter(params[i]) : params[i]);\n    }\n    return bytes;\n};\n\n/// Setups output formaters for solidity types\n/// @returns an array of output formatters\nvar setupOutputTypes = function () {\n\n    /// @param expected type prefix (string)\n    /// @returns function which checks if type has matching prefix. if yes, returns true, otherwise false\n    var prefixedType = function (prefix) {\n        return function (type) {\n            var expected = prefix;\n            return type.indexOf(expected) === 0;\n        };\n    };\n\n    /// @param expected type name (string)\n    /// @returns function which checks if type is matching expected one. if yes, returns true, otherwise false\n    var namedType = function (name) {\n        return function (type) {\n            return name === type;\n        };\n    };\n\n    /// @returns input bytes formatted to int\n    var formatInt = function (value) {\n        return value.length <= 8 ? +parseInt(value, 16) : hexToDec(value);\n    };\n\n    /// @returns input bytes formatted to hex\n    var formatHash = function (value) {\n        return \"0x\" + value;\n    };\n\n    /// @returns input bytes formatted to bool\n    var formatBool = function (value) {\n        return value === '0000000000000000000000000000000000000000000000000000000000000001' ? true : false;\n    };\n\n    /// @returns input bytes formatted to ascii string\n    var formatString = function (value) {\n        return web3.toAscii(value);\n    };\n\n    return [\n        { type: prefixedType('uint'), format: formatInt },\n        { type: prefixedType('int'), format: formatInt },\n        { type: prefixedType('hash'), format: formatHash },\n        { type: prefixedType('string'), format: formatString },\n        { type: prefixedType('real'), format: formatInt },\n        { type: prefixedType('ureal'), format: formatInt },\n        { type: namedType('address') },\n        { type: namedType('bool'), format: formatBool }\n    ];\n};\n\nvar outputTypes = setupOutputTypes();\n\nvar fromAbiOutput = function (json, methodName, output) {\n    var index = findMethodIndex(json, methodName);\n\n    if (index === -1) {\n        return;\n    }\n\n    output = output.slice(2);\n\n    var result = [];\n    var method = json[index];\n    var padding = 32 * 2;\n    for (var i = 0; i < method.outputs.length; i++) {\n        var typeMatch = false;\n        for (var j = 0; j < outputTypes.length && !typeMatch; j++) {\n            typeMatch = outputTypes[j].type(method.outputs[i].type);\n        }\n\n        if (!typeMatch) {\n            // not found output parsing\n            console.error('output parser does not support type: ' + method.outputs[i].type);\n            continue;\n        }\n        var res = output.slice(0, padding);\n        var formatter = outputTypes[j - 1].format;\n        result.push(formatter ? formatter(res) : (\"0x\" + res));\n        output = output.slice(padding);\n    }\n\n    return result;\n};\n\n/// @param json abi for contract\n/// @returns input parser object for given json abi\nvar inputParser = function (json) {\n    var parser = {};\n    json.forEach(function (method) {\n        parser[method.name] = function () {\n            var params = Array.prototype.slice.call(arguments);\n            return toAbiInput(json, method.name, params);\n        };\n    });\n\n    return parser;\n};\n\n/// @param json abi for contract\n/// @returns output parser for given json abi\nvar outputParser = function (json) {\n    var parser = {};\n    json.forEach(function (method) {\n        parser[method.name] = function (output) {\n            return fromAbiOutput(json, method.name, output);\n        };\n    });\n\n    return parser;\n};\n\n/// @param json abi for contract\n/// @param method name for which we want to get method signature\n/// @returns (promise) contract method signature for method with given name\nvar methodSignature = function (json, name) {\n    var method = json[findMethodIndex(json, name)];\n    var result = name + '(';\n    var inputTypes = method.inputs.map(function (inp) {\n        return inp.type;\n    });\n    result += inputTypes.join(',');\n    result += ')';\n\n    return web3.sha3(web3.fromAscii(result));\n};\n\nmodule.exports = {\n    inputParser: inputParser,\n    outputParser: outputParser,\n    methodSignature: methodSignature\n};\n\n",
     "/*\n    This file is part of ethereum.js.\n\n    ethereum.js is free software: you can redistribute it and/or modify\n    it under the terms of the GNU Lesser General Public License as published by\n    the Free Software Foundation, either version 3 of the License, or\n    (at your option) any later version.\n\n    ethereum.js is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Lesser General Public License for more details.\n\n    You should have received a copy of the GNU Lesser General Public License\n    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.\n*/\n/** @file autoprovider.js\n * @authors:\n *   Marek Kotewicz <marek@ethdev.com>\n *   Marian Oancea <marian@ethdev.com>\n * @date 2014\n */\n\n/*\n * @brief if qt object is available, uses QtProvider,\n * if not tries to connect over websockets\n * if it fails, it uses HttpRpcProvider\n */\n\n// TODO: is these line is supposed to be here? \nif (\"build\" !== 'build') {/*\n    var WebSocket = require('ws'); // jshint ignore:line\n    var web3 = require('./web3'); // jshint ignore:line\n*/}\n\n/**\n * AutoProvider object prototype is implementing 'provider protocol'\n * Automatically tries to setup correct provider(Qt, WebSockets or HttpRpc)\n * First it checkes if we are ethereum browser (if navigator.qt object is available)\n * if yes, we are using QtProvider\n * if no, we check if it is possible to establish websockets connection with ethereum (ws://localhost:40404/eth is default)\n * if it's not possible, we are using httprpc provider (http://localhost:8080)\n * The constructor allows you to specify uris on which we are trying to connect over http or websockets\n * You can do that by passing objects with fields httrpc and websockets\n */\nvar AutoProvider = function (userOptions) {\n    if (web3.haveProvider()) {\n        return;\n    }\n\n    // before we determine what provider we are, we have to cache request\n    this.sendQueue = [];\n    this.onmessageQueue = [];\n\n    if (navigator.qt) {\n        this.provider = new web3.providers.QtProvider();\n        return;\n    }\n\n    userOptions = userOptions || {};\n    var options = {\n        httprpc: userOptions.httprpc || 'http://localhost:8080',\n        websockets: userOptions.websockets || 'ws://localhost:40404/eth'\n    };\n\n    var self = this;\n    var closeWithSuccess = function (success) {\n        ws.close();\n        if (success) {\n            self.provider = new web3.providers.WebSocketProvider(options.websockets);\n        } else {\n            self.provider = new web3.providers.HttpRpcProvider(options.httprpc);\n            self.poll = self.provider.poll.bind(self.provider);\n        }\n        self.sendQueue.forEach(function (payload) {\n            self.provider(payload);\n        });\n        self.onmessageQueue.forEach(function (handler) {\n            self.provider.onmessage = handler;\n        });\n    };\n\n    var ws = new WebSocket(options.websockets);\n\n    ws.onopen = function() {\n        closeWithSuccess(true);\n    };\n\n    ws.onerror = function() {\n        closeWithSuccess(false);\n    };\n};\n\n/// Sends message forward to the provider, that is being used\n/// if provider is not yet set, enqueues the message\nAutoProvider.prototype.send = function (payload) {\n    if (this.provider) {\n        this.provider.send(payload);\n        return;\n    }\n    this.sendQueue.push(payload);\n};\n\n/// On incoming message sends the message to the provider that is currently being used\nObject.defineProperty(AutoProvider.prototype, 'onmessage', {\n    set: function (handler) {\n        if (this.provider) {\n            this.provider.onmessage = handler;\n            return;\n        }\n        this.onmessageQueue.push(handler);\n    }\n});\n\nmodule.exports = AutoProvider;\n",
     "/*\n    This file is part of ethereum.js.\n\n    ethereum.js is free software: you can redistribute it and/or modify\n    it under the terms of the GNU Lesser General Public License as published by\n    the Free Software Foundation, either version 3 of the License, or\n    (at your option) any later version.\n\n    ethereum.js is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Lesser General Public License for more details.\n\n    You should have received a copy of the GNU Lesser General Public License\n    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.\n*/\n/** @file contract.js\n * @authors:\n *   Marek Kotewicz <marek@ethdev.com>\n * @date 2014\n */\n\n// TODO: is these line is supposed to be here? \nif (\"build\" !== 'build') {/*\n    var web3 = require('./web3'); // jshint ignore:line\n*/}\n\nvar abi = require('./abi');\n\n/// method signature length in bytes\nvar ETH_METHOD_SIGNATURE_LENGTH = 4;\n\n/**\n * This method should be called when we want to call / transact some solidity method from javascript\n * it returns an object which has same methods available as solidity contract description\n * usage example: \n *\n * var abi = [{\n *      name: 'myMethod',\n *      inputs: [{ name: 'a', type: 'string' }],\n *      outputs: [{name 'd', type: 'string' }]\n * }];  // contract abi\n *\n * var myContract = web3.eth.contract('0x0123123121', abi); // creation of contract object\n *\n * myContract.myMethod('this is test string param for call').cal(); // myMethod call\n * myContract.myMethod('this is test string param for transact').transact() // myMethod transact\n *\n * @param address - address of the contract, which should be called\n * @param desc - abi json description of the contract, which is being created\n * @returns contract object\n */\nvar contract = function (address, desc) {\n    var inputParser = abi.inputParser(desc);\n    var outputParser = abi.outputParser(desc);\n\n    var contract = {};\n\n    desc.forEach(function (method) {\n        contract[method.name] = function () {\n            var params = Array.prototype.slice.call(arguments);\n            var parsed = inputParser[method.name].apply(null, params);\n\n            var onSuccess = function (result) {\n                return outputParser[method.name](result);\n            };\n\n            return {\n                call: function (extra) {\n                    extra = extra || {};\n                    extra.to = address;\n                    return abi.methodSignature(desc, method.name).then(function (signature) {\n                        extra.data = signature.slice(0, 2 + ETH_METHOD_SIGNATURE_LENGTH * 2) + parsed;\n                        return web3.eth.call(extra).then(onSuccess);\n                    });\n                },\n                transact: function (extra) {\n                    extra = extra || {};\n                    extra.to = address;\n                    return abi.methodSignature(desc, method.name).then(function (signature) {\n                        extra.data = signature.slice(0, 2 + ETH_METHOD_SIGNATURE_LENGTH * 2) + parsed;\n                        return web3.eth.transact(extra).then(onSuccess);\n                    });\n                }\n            };\n        };\n    });\n\n    return contract;\n};\n\nmodule.exports = contract;\n\n",
     "/*\n    This file is part of ethereum.js.\n\n    ethereum.js is free software: you can redistribute it and/or modify\n    it under the terms of the GNU Lesser General Public License as published by\n    the Free Software Foundation, either version 3 of the License, or\n    (at your option) any later version.\n\n    ethereum.js is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Lesser General Public License for more details.\n\n    You should have received a copy of the GNU Lesser General Public License\n    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.\n*/\n/** @file filter.js\n * @authors:\n *   Jeffrey Wilcke <jeff@ethdev.com>\n *   Marek Kotewicz <marek@ethdev.com>\n *   Marian Oancea <marian@ethdev.com>\n *   Gav Wood <g@ethdev.com>\n * @date 2014\n */\n\n// TODO: is these line is supposed to be here? \nif (\"build\" !== 'build') {/*\n    var web3 = require('./web3'); // jshint ignore:line\n*/}\n\n/// should be used when we want to watch something\n/// it's using inner polling mechanism and is notified about changes\nvar Filter = function(options, impl) {\n    this.impl = impl;\n    this.callbacks = [];\n\n    var self = this;\n    this.promise = impl.newFilter(options);\n    this.promise.then(function (id) {\n        self.id = id;\n        web3.on(impl.changed, id, self.trigger.bind(self));\n        web3.provider.startPolling({call: impl.changed, args: [id]}, id);\n    });\n};\n\n/// alias for changed*\nFilter.prototype.arrived = function(callback) {\n    this.changed(callback);\n};\n\n/// gets called when there is new eth/shh message\nFilter.prototype.changed = function(callback) {\n    var self = this;\n    this.promise.then(function(id) {\n        self.callbacks.push(callback);\n    });\n};\n\n/// trigger calling new message from people\nFilter.prototype.trigger = function(messages) {\n    for(var i = 0; i < this.callbacks.length; i++) {\n        this.callbacks[i].call(this, messages);\n    }\n};\n\n/// should be called to uninstall current filter\nFilter.prototype.uninstall = function() {\n    var self = this;\n    this.promise.then(function (id) {\n        self.impl.uninstallFilter(id);\n        web3.provider.stopPolling(id);\n        web3.off(impl.changed, id);\n    });\n};\n\n/// should be called to manually trigger getting latest messages from the client\nFilter.prototype.messages = function() {\n    var self = this;\n    return this.promise.then(function (id) {\n        return self.impl.getMessages(id);\n    });\n};\n\n/// alias for messages\nFilter.prototype.logs = function () {\n    return this.messages();\n};\n\nmodule.exports = Filter;\n",
diff --git a/dist/ethereum.min.js b/dist/ethereum.min.js
index 6180ac895..0219d75f4 100644
--- a/dist/ethereum.min.js
+++ b/dist/ethereum.min.js
@@ -1 +1 @@
-require=function e(t,n,r){function o(a,s){if(!n[a]){if(!t[a]){var u="function"==typeof require&&require;if(!s&&u)return u(a,!0);if(i)return i(a,!0);var c=new Error("Cannot find module '"+a+"'");throw c.code="MODULE_NOT_FOUND",c}var l=n[a]={exports:{}};t[a][0].call(l.exports,function(e){var n=t[a][1][e];return o(n?n:e)},l,l.exports,e,t,n,r)}return n[a].exports}for(var i="function"==typeof require&&require,a=0;a<r.length;a++)o(r[a]);return o}({1:[function(e,t){var n=function(e){return parseInt(e,16).toString()},r=function(e,t){for(var n=!1,r=0;r<e.length&&!n;r++)n=t(e[r]);return n?r-1:-1},o=function(e,t){return r(e,function(e){return e.name===t})},i=function(e,t){return new Array(t-e.length+1).join("0")+e},a=function(){var e=function(e){return function(t,n){var r=e;if(0!==t.indexOf(r))return!1;var o=32;return"string"===e?web3.fromAscii(n,o).substr(2):(n="number"==typeof n?n.toString(16):"string"==typeof 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web3.toAscii(e)};return[{padding:e("uint"),format:r},{padding:e("int"),format:r},{padding:e("hash"),format:o},{padding:e("string"),format:a},{padding:e("real"),format:r},{padding:e("ureal"),format:r},{padding:t("address")},{padding:t("bool"),format:i}]},l=c(),h=function(e,t,n){var r=o(e,t);if(-1!==r){n=n.slice(2);for(var i=[],a=e[r],s=0;s<a.outputs.length;s++){for(var u=-1,c=0;c<l.length&&-1===u;c++)u=l[c].padding(a.outputs[s].type);if(-1!==u){var h=n.slice(0,u),f=l[c-1].format;i.push(f?f(h):"0x"+h),n=n.slice(u)}}return i}},f=function(e){var t={};return e.forEach(function(n){t[n.name]=function(){var t=Array.prototype.slice.call(arguments);return u(e,n.name,t)}}),t},d=function(e){var t={};return e.forEach(function(n){t[n.name]=function(t){return h(e,n.name,t)}}),t},p=function(e,t){var n=e[o(e,t)],r=t+"(",i=n.inputs.map(function(e){return e.type});return 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n=this;this.promise=t.newFilter(e),this.promise.then(function(e){n.id=e,web3.on(t.changed,e,n.trigger.bind(n)),web3.provider.startPolling({call:t.changed,args:[e]},e)})};n.prototype.arrived=function(e){this.changed(e)},n.prototype.changed=function(e){var t=this;this.promise.then(function(){t.callbacks.push(e)})},n.prototype.trigger=function(e){for(var t=0;t<this.callbacks.length;t++)this.callbacks[t].call(this,e)},n.prototype.uninstall=function(){var e=this;this.promise.then(function(t){e.impl.uninstallFilter(t),web3.provider.stopPolling(t),web3.off(impl.changed,t)})},n.prototype.messages=function(){var e=this;return this.promise.then(function(t){return e.impl.getMessages(t)})},n.prototype.logs=function(){return this.messages()},t.exports=n},{}],5:[function(e,t){function n(e){return{jsonrpc:"2.0",method:e.call,params:e.args,id:e._id}}function r(e){var t=JSON.parse(e);return{_id:t.id,data:t.result,error:t.error}}var o=function(e){this.handlers=[],this.host=e};o.prototype.sendRequest=function(e,t){var r=n(e),o=new XMLHttpRequest;o.open("POST",this.host,!0),o.send(JSON.stringify(r)),o.onreadystatechange=function(){4===o.readyState&&t&&t(o)}},o.prototype.send=function(e){var t=this;this.sendRequest(e,function(e){t.handlers.forEach(function(n){n.call(t,r(e.responseText))})})},o.prototype.poll=function(e,t){var n=this;this.sendRequest(e,function(r){var o=JSON.parse(r.responseText);!o.error&&(o.result instanceof Array?0!==o.result.length:o.result)&&n.handlers.forEach(function(r){r.call(n,{_event:e.call,_id:t,data:o.result})})})},Object.defineProperty(o.prototype,"onmessage",{set:function(e){this.handlers.push(e)}}),t.exports=o},{}],6:[function(e,t){var n=function(){this.queued=[],this.polls=[],this.ready=!1,this.provider=void 0,this.id=1;var e=this,t=function(){e.provider&&e.provider.poll&&e.polls.forEach(function(t){t.data._id=e.id,e.id++,e.provider.poll(t.data,t.id)}),setTimeout(t,12e3)};t()};n.prototype.send=function(e,t){e._id=this.id,t&&(web3._callbacks[e._id]=t),e.args=e.args||[],this.id++,void 0!==this.provider?this.provider.send(e):(console.warn("provider is not set"),this.queued.push(e))},n.prototype.set=function(e){void 0!==this.provider&&void 0!==this.provider.unload&&this.provider.unload(),this.provider=e,this.ready=!0},n.prototype.sendQueued=function(){for(var e=0;this.queued.length;e++)this.send(this.queued[e])},n.prototype.installed=function(){return void 0!==this.provider},n.prototype.startPolling=function(e,t){this.provider&&this.provider.poll&&this.polls.push({data:e,id:t})},n.prototype.stopPolling=function(e){for(var t=this.polls.length;t--;){var n=this.polls[t];n.id===e&&this.polls.splice(t,1)}},t.exports=n},{}],7:[function(e,t){var n=function(){this.handlers=[];var e=this;navigator.qt.onmessage=function(t){e.handlers.forEach(function(n){n.call(e,JSON.parse(t.data))})}};n.prototype.send=function(e){navigator.qt.postMessage(JSON.stringify(e))},Object.defineProperty(n.prototype,"onmessage",{set:function(e){this.handlers.push(e)}}),t.exports=n},{}],8:[function(e,t){function n(e){return e instanceof Promise?Promise.resolve(e):e instanceof Array?new Promise(function(t){var r=e.map(function(e){return n(e)});return Promise.all(r).then(function(n){for(var r=0;r<e.length;r++)e[r]=n[r];t(e)})}):e instanceof Object?new Promise(function(t){var r=Object.keys(e),o=r.map(function(t){return n(e[t])});return Promise.all(o).then(function(n){for(var o=0;o<r.length;o++)e[r[o]]=n[o];t(e)})}):Promise.resolve(e)}function r(e){if(void 0!==e._event)return void m.trigger(e._event,e._id,e.data);if(e._id){var t=m._callbacks[e._id];t&&(t.call(this,e.error,e.data),delete m._callbacks[e._id])}}var o=e("./filter"),i=e("./providermanager"),a=function(){return[{name:"sha3",call:"web3_sha3"}]},s=function(){var e=function(e){return"string"==typeof e[0]?"eth_blockByHash":"eth_blockByNumber"},t=function(e){return"string"==typeof e[0]?"eth_transactionByHash":"eth_transactionByNumber"},n=function(e){return"string"==typeof e[0]?"eth_uncleByHash":"eth_uncleByNumber"},r=[{name:"balanceAt",call:"eth_balanceAt"},{name:"stateAt",call:"eth_stateAt"},{name:"storageAt",call:"eth_storageAt"},{name:"countAt",call:"eth_countAt"},{name:"codeAt",call:"eth_codeAt"},{name:"transact",call:"eth_transact"},{name:"call",call:"eth_call"},{name:"block",call:e},{name:"transaction",call:t},{name:"uncle",call:n},{name:"compilers",call:"eth_compilers"},{name:"lll",call:"eth_lll"},{name:"solidity",call:"eth_solidity"},{name:"serpent",call:"eth_serpent"},{name:"logs",call:"eth_logs"}];return r},u=function(){return[{name:"coinbase",getter:"eth_coinbase",setter:"eth_setCoinbase"},{name:"listening",getter:"eth_listening",setter:"eth_setListening"},{name:"mining",getter:"eth_mining",setter:"eth_setMining"},{name:"gasPrice",getter:"eth_gasPrice"},{name:"account",getter:"eth_account"},{name:"accounts",getter:"eth_accounts"},{name:"peerCount",getter:"eth_peerCount"},{name:"defaultBlock",getter:"eth_defaultBlock",setter:"eth_setDefaultBlock"},{name:"number",getter:"eth_number"}]},c=function(){return[{name:"put",call:"db_put"},{name:"get",call:"db_get"},{name:"putString",call:"db_putString"},{name:"getString",call:"db_getString"}]},l=function(){return[{name:"post",call:"shh_post"},{name:"newIdentity",call:"shh_newIdentity"},{name:"haveIdentity",call:"shh_haveIdentity"},{name:"newGroup",call:"shh_newGroup"},{name:"addToGroup",call:"shh_addToGroup"}]},h=function(){var e=function(e){return"string"==typeof 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Promise(function(n){m.provider.send({call:t.setter,args:e},function(e,t){return e?void reject(e):void n(t)})})}).catch(function(e){console.error(e)})}),Object.defineProperty(e,t.name,r)})},v=function(e){return parseInt(e,16).toString()},g=function(e){return parseInt(e).toString(16)},m={_callbacks:{},_events:{},providers:{},toHex:function(e){for(var t="",n=0;n<e.length;n++){var r=e.charCodeAt(n).toString(16);t+=r.length<2?"0"+r:r}return t},toAscii:function(e){var t="",n=0,r=e.length;for("0x"===e.substring(0,2)&&(n=2);r>n;n+=2){var o=parseInt(e.substr(n,2),16);if(0===o)break;t+=String.fromCharCode(o)}return t},fromAscii:function(e,t){t=void 0===t?0:t;for(var n=this.toHex(e);n.length<2*t;)n+="00";return"0x"+n},toDecimal:function(e){return v(e.substring(2))},fromDecimal:function(e){return"0x"+g(e)},toEth:function(e){for(var t="string"==typeof 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i,m.setProvider=function(e){e.onmessage=r,m.provider.set(e),m.provider.sendQueued()},"undefined"!=typeof t&&(t.exports=m)},{"./filter":4,"./providermanager":6}],9:[function(e,t){var n=function(e){this.handlers=[],this.queued=[],this.ready=!1,this.ws=new WebSocket(e);var t=this;this.ws.onmessage=function(e){for(var n=0;n<t.handlers.length;n++)t.handlers[n].call(t,JSON.parse(e.data),e)},this.ws.onopen=function(){t.ready=!0;for(var e=0;e<t.queued.length;e++)t.send(t.queued[e])}};n.prototype.send=function(e){if(this.ready){var t=JSON.stringify(e);this.ws.send(t)}else this.queued.push(e)},n.prototype.onMessage=function(e){this.handlers.push(e)},n.prototype.unload=function(){this.ws.close()},Object.defineProperty(n.prototype,"onmessage",{set:function(e){this.onMessage(e)}}),"undefined"!=typeof t&&(t.exports=n)},{}],web3:[function(e,t){var n=e("./lib/web3");n.providers.WebSocketProvider=e("./lib/websocket"),n.providers.HttpRpcProvider=e("./lib/httprpc"),n.providers.QtProvider=e("./lib/qt"),n.providers.AutoProvider=e("./lib/autoprovider"),n.eth.contract=e("./lib/contract"),t.exports=n},{"./lib/autoprovider":2,"./lib/contract":3,"./lib/httprpc":5,"./lib/qt":7,"./lib/web3":8,"./lib/websocket":9}]},{},["web3"]);
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n=this;this.promise=e.newFilter(t),this.promise.then(function(t){n.id=t,web3.on(e.changed,t,n.trigger.bind(n)),web3.provider.startPolling({call:e.changed,args:[t]},t)})};n.prototype.arrived=function(t){this.changed(t)},n.prototype.changed=function(t){var e=this;this.promise.then(function(){e.callbacks.push(t)})},n.prototype.trigger=function(t){for(var e=0;e<this.callbacks.length;e++)this.callbacks[e].call(this,t)},n.prototype.uninstall=function(){var t=this;this.promise.then(function(e){t.impl.uninstallFilter(e),web3.provider.stopPolling(e),web3.off(impl.changed,e)})},n.prototype.messages=function(){var t=this;return this.promise.then(function(e){return t.impl.getMessages(e)})},n.prototype.logs=function(){return this.messages()},e.exports=n},{}],5:[function(t,e){function n(t){return{jsonrpc:"2.0",method:t.call,params:t.args,id:t._id}}function r(t){var e=JSON.parse(t);return{_id:e.id,data:e.result,error:e.error}}var o=function(t){this.handlers=[],this.host=t};o.prototype.sendRequest=function(t,e){var r=n(t),o=new XMLHttpRequest;o.open("POST",this.host,!0),o.send(JSON.stringify(r)),o.onreadystatechange=function(){4===o.readyState&&e&&e(o)}},o.prototype.send=function(t){var e=this;this.sendRequest(t,function(t){e.handlers.forEach(function(n){n.call(e,r(t.responseText))})})},o.prototype.poll=function(t,e){var n=this;this.sendRequest(t,function(r){var o=JSON.parse(r.responseText);!o.error&&(o.result instanceof Array?0!==o.result.length:o.result)&&n.handlers.forEach(function(r){r.call(n,{_event:t.call,_id:e,data:o.result})})})},Object.defineProperty(o.prototype,"onmessage",{set:function(t){this.handlers.push(t)}}),e.exports=o},{}],6:[function(t,e){var n=function(){this.queued=[],this.polls=[],this.ready=!1,this.provider=void 0,this.id=1;var t=this,e=function(){t.provider&&t.provider.poll&&t.polls.forEach(function(e){e.data._id=t.id,t.id++,t.provider.poll(e.data,e.id)}),setTimeout(e,12e3)};e()};n.prototype.send=function(t,e){t._id=this.id,e&&(web3._callbacks[t._id]=e),t.args=t.args||[],this.id++,void 0!==this.provider?this.provider.send(t):(console.warn("provider is not set"),this.queued.push(t))},n.prototype.set=function(t){void 0!==this.provider&&void 0!==this.provider.unload&&this.provider.unload(),this.provider=t,this.ready=!0},n.prototype.sendQueued=function(){for(var t=0;this.queued.length;t++)this.send(this.queued[t])},n.prototype.installed=function(){return void 0!==this.provider},n.prototype.startPolling=function(t,e){this.provider&&this.provider.poll&&this.polls.push({data:t,id:e})},n.prototype.stopPolling=function(t){for(var e=this.polls.length;e--;){var n=this.polls[e];n.id===t&&this.polls.splice(e,1)}},e.exports=n},{}],7:[function(t,e){var n=function(){this.handlers=[];var t=this;navigator.qt.onmessage=function(e){t.handlers.forEach(function(n){n.call(t,JSON.parse(e.data))})}};n.prototype.send=function(t){navigator.qt.postMessage(JSON.stringify(t))},Object.defineProperty(n.prototype,"onmessage",{set:function(t){this.handlers.push(t)}}),e.exports=n},{}],8:[function(t,e){function n(t){return t instanceof Promise?Promise.resolve(t):t instanceof Array?new Promise(function(e){var r=t.map(function(t){return n(t)});return Promise.all(r).then(function(n){for(var r=0;r<t.length;r++)t[r]=n[r];e(t)})}):t instanceof Object?new Promise(function(e){var r=Object.keys(t),o=r.map(function(e){return n(t[e])});return Promise.all(o).then(function(n){for(var o=0;o<r.length;o++)t[r[o]]=n[o];e(t)})}):Promise.resolve(t)}function r(t){if(void 0!==t._event)return void m.trigger(t._event,t._id,t.data);if(t._id){var e=m._callbacks[t._id];e&&(e.call(this,t.error,t.data),delete m._callbacks[t._id])}}var o=t("./filter"),i=t("./providermanager"),a=function(){return[{name:"sha3",call:"web3_sha3"}]},s=function(){var t=function(t){return"string"==typeof t[0]?"eth_blockByHash":"eth_blockByNumber"},e=function(t){return"string"==typeof t[0]?"eth_transactionByHash":"eth_transactionByNumber"},n=function(t){return"string"==typeof t[0]?"eth_uncleByHash":"eth_uncleByNumber"},r=[{name:"balanceAt",call:"eth_balanceAt"},{name:"stateAt",call:"eth_stateAt"},{name:"storageAt",call:"eth_storageAt"},{name:"countAt",call:"eth_countAt"},{name:"codeAt",call:"eth_codeAt"},{name:"transact",call:"eth_transact"},{name:"call",call:"eth_call"},{name:"block",call:t},{name:"transaction",call:e},{name:"uncle",call:n},{name:"compilers",call:"eth_compilers"},{name:"lll",call:"eth_lll"},{name:"solidity",call:"eth_solidity"},{name:"serpent",call:"eth_serpent"},{name:"logs",call:"eth_logs"}];return r},u=function(){return[{name:"coinbase",getter:"eth_coinbase",setter:"eth_setCoinbase"},{name:"listening",getter:"eth_listening",setter:"eth_setListening"},{name:"mining",getter:"eth_mining",setter:"eth_setMining"},{name:"gasPrice",getter:"eth_gasPrice"},{name:"account",getter:"eth_account"},{name:"accounts",getter:"eth_accounts"},{name:"peerCount",getter:"eth_peerCount"},{name:"defaultBlock",getter:"eth_defaultBlock",setter:"eth_setDefaultBlock"},{name:"number",getter:"eth_number"}]},c=function(){return[{name:"put",call:"db_put"},{name:"get",call:"db_get"},{name:"putString",call:"db_putString"},{name:"getString",call:"db_getString"}]},l=function(){return[{name:"post",call:"shh_post"},{name:"newIdentity",call:"shh_newIdentity"},{name:"haveIdentity",call:"shh_haveIdentity"},{name:"newGroup",call:"shh_newGroup"},{name:"addToGroup",call:"shh_addToGroup"}]},h=function(){var t=function(t){return"string"==typeof t[0]?"eth_newFilterString":"eth_newFilter"};return[{name:"newFilter",call:t},{name:"uninstallFilter",call:"eth_uninstallFilter"},{name:"getMessages",call:"eth_filterLogs"}]},f=function(){return[{name:"newFilter",call:"shh_newFilter"},{name:"uninstallFilter",call:"shh_uninstallFilter"},{name:"getMessage",call:"shh_getMessages"}]},p=function(t,e){e.forEach(function(e){t[e.name]=function(){return n(Array.prototype.slice.call(arguments)).then(function(t){var n="function"==typeof e.call?e.call(t):e.call;return{call:n,args:t}}).then(function(t){return new Promise(function(e,n){m.provider.send(t,function(t,r){return t?void n(t):void e(r)})})}).catch(function(t){console.error(t)})}})},d=function(t,e){e.forEach(function(e){var r={};r.get=function(){return new Promise(function(t,n){m.provider.send({call:e.getter},function(e,r){return e?void n(e):void t(r)})})},e.setter&&(r.set=function(t){return n([t]).then(function(t){return new Promise(function(n){m.provider.send({call:e.setter,args:t},function(t,e){return t?void reject(t):void n(e)})})}).catch(function(t){console.error(t)})}),Object.defineProperty(t,e.name,r)})},v=function(t){return parseInt(t,16).toString()},g=function(t){return parseInt(t).toString(16)},m={_callbacks:{},_events:{},providers:{},toHex:function(t){for(var e="",n=0;n<t.length;n++){var r=t.charCodeAt(n).toString(16);e+=r.length<2?"0"+r:r}return e},toAscii:function(t){var e="",n=0,r=t.length;for("0x"===t.substring(0,2)&&(n=2);r>n;n+=2){var o=parseInt(t.substr(n,2),16);if(0===o)break;e+=String.fromCharCode(o)}return e},fromAscii:function(t,e){e=void 0===e?0:e;for(var n=this.toHex(t);n.length<2*e;)n+="00";return"0x"+n},toDecimal:function(t){return v(t.substring(2))},fromDecimal:function(t){return"0x"+g(t)},toEth:function(t){for(var e="string"==typeof t?0===t.indexOf("0x")?parseInt(t.substr(2),16):parseInt(t):t,n=0,r=["wei","Kwei","Mwei","Gwei","szabo","finney","ether","grand","Mether","Gether","Tether","Pether","Eether","Zether","Yether","Nether","Dether","Vether","Uether"];e>3e3&&n<r.length-1;)e/=1e3,n++;for(var o=e.toString().length<e.toFixed(2).length?e.toString():e.toFixed(2),i=function(t,e,n){return e+","+n};;){var a=o;if(o=o.replace(/(\d)(\d\d\d[\.\,])/,i),a===o)break}return o+" "+r[n]},eth:{watch:function(t){return new o(t,y)}},db:{},shh:{watch:function(t){return new o(t,b)}},on:function(t,e,n){return void 0===m._events[t]&&(m._events[t]={}),m._events[t][e]=n,this},off:function(t,e){return void 0!==m._events[t]&&delete m._events[t][e],this},trigger:function(t,e,n){var r=m._events[t];if(r&&r[e]){var o=r[e];o(n)}},haveProvider:function(){return!!m.provider.provider}};p(m,a()),p(m.eth,s()),d(m.eth,u()),p(m.db,c()),p(m.shh,l());var y={changed:"eth_changed"};p(y,h());var b={changed:"shh_changed"};p(b,f()),m.provider=new i,m.setProvider=function(t){t.onmessage=r,m.provider.set(t),m.provider.sendQueued()},"undefined"!=typeof e&&(e.exports=m)},{"./filter":4,"./providermanager":6}],9:[function(t,e){var n=function(t){this.handlers=[],this.queued=[],this.ready=!1,this.ws=new WebSocket(t);var e=this;this.ws.onmessage=function(t){for(var n=0;n<e.handlers.length;n++)e.handlers[n].call(e,JSON.parse(t.data),t)},this.ws.onopen=function(){e.ready=!0;for(var t=0;t<e.queued.length;t++)e.send(e.queued[t])}};n.prototype.send=function(t){if(this.ready){var e=JSON.stringify(t);this.ws.send(e)}else this.queued.push(t)},n.prototype.onMessage=function(t){this.handlers.push(t)},n.prototype.unload=function(){this.ws.close()},Object.defineProperty(n.prototype,"onmessage",{set:function(t){this.onMessage(t)}}),"undefined"!=typeof e&&(e.exports=n)},{}],web3:[function(t,e){var n=t("./lib/web3");n.providers.WebSocketProvider=t("./lib/websocket"),n.providers.HttpRpcProvider=t("./lib/httprpc"),n.providers.QtProvider=t("./lib/qt"),n.providers.AutoProvider=t("./lib/autoprovider"),n.eth.contract=t("./lib/contract"),e.exports=n},{"./lib/autoprovider":2,"./lib/contract":3,"./lib/httprpc":5,"./lib/qt":7,"./lib/web3":8,"./lib/websocket":9}]},{},["web3"]);
\ No newline at end of file
diff --git a/lib/abi.js b/lib/abi.js
index 680016377..cde725ff1 100644
--- a/lib/abi.js
+++ b/lib/abi.js
@@ -164,7 +164,7 @@ var setupOutputTypes = function () {
 
     /// @returns input bytes formatted to bool
     var formatBool = function (value) {
-        return value === '1' ? true : false;
+        return value === '0000000000000000000000000000000000000000000000000000000000000001' ? true : false;
     };
 
     /// @returns input bytes formatted to ascii string
diff --git a/test/abi.parsers.js b/test/abi.parsers.js
index 6a31c2173..cf6a93fd0 100644
--- a/test/abi.parsers.js
+++ b/test/abi.parsers.js
@@ -127,6 +127,24 @@ describe('abi', function() {
             
         });
 
+        it('should parse input bool', function() {
+            
+            // given
+            var d = clone(description);
+
+            d[0].inputs = [
+                { type: 'bool' }
+            ];
+
+            // when
+            var parser = abi.inputParser(d);
+
+            // then
+            assert.equal(parser.test(true), "0000000000000000000000000000000000000000000000000000000000000001");
+            assert.equal(parser.test(false), "0000000000000000000000000000000000000000000000000000000000000000");
+
+        });
+
         it('should parse input hash', function() {
 /*
             // given
@@ -253,6 +271,25 @@ describe('abi', function() {
             assert.equal(parser.test("0x68656c6c6f000000000000000000000000000000000000000000000000000000")[0], 'hello');
             assert.equal(parser.test("0x776f726c64000000000000000000000000000000000000000000000000000000")[0], 'world');
 
+        });
+        
+        it('should parse output bool', function() {
+            
+            // given
+            var d = clone(description);
+
+            d[0].outputs = [
+                { type: 'bool' }
+            ];
+
+            // when
+            var parser = abi.outputParser(d);
+
+            // then
+            assert.equal(parser.test("000000000000000000000000000000000000000000000000000000000000000001")[0], true);
+            assert.equal(parser.test("000000000000000000000000000000000000000000000000000000000000000000")[0], false);
+            
+
         });
 
         it('should parse multiple output strings', function() {