update readme

fix Issue 140: error logged to console when switching tabs.

README.md

@@ -1,7 +1,7 @@
 coinbin
 =======
 
-A Open Source Browser Based Bitcoin Wallet. Version 1.4 beta by OutCast3k
+A Open Source Browser Based Bitcoin Wallet. Version 1.5 beta by OutCast3k
 
 Live version available at http://coinb.in/ or http://4zpinp6gdkjfplhk.onion
 

index.html

@@ -338,7 +338,16 @@
 
 						</div>
 
-						<input type="button" class="btn btn-primary" value="Generate" id="newKeysBtn">
+						<div class="btn-group">
+							<input type="button" class="btn btn-primary" value="Generate" id="newKeysBtn">
+							<button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
+								<span class="caret"></span>
+								<span class="sr-only">Toggle Dropdown</span>
+							</button>
+							<ul class="dropdown-menu">
+								<li><a href="#" id="newPaperwalletBtn">Print</a></li>
+							</ul>							
+						</div>
 						<br>
 					</div>
 
@@ -383,7 +392,17 @@
 							<input type="text" class="form-control hidden" id="brainwalletSegWit">
 						</div>
 
-						<input type="button" class="btn btn-primary" value="Generate" id="newSegWitKeysBtn">
+						<div class="btn-group">
+							<input type="button" class="btn btn-primary" value="Generate" id="newSegWitKeysBtn">
+							<button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
+								<span class="caret"></span>
+								<span class="sr-only">Toggle Dropdown</span>
+							</button>
+
+							<ul class="dropdown-menu">
+								<li><a href="#" id="newSegwitPaperwalletBtn">Print</a></li>
+							</ul>
+						</div>
 						<br>
 					</div>
 
@@ -609,7 +628,7 @@
 
 								<label>Null Data</label> <span class="text-muted text-normal">(80 byte limit, <i>40 bytes recommended</i>)</span>
 								<p class="checkbox">
-									<label><input type="checkbox" id="opReturn" class="checkbox-inline"> Allow data to be sent within the transaction and stored in the blockchain by using <a href="https://bitcoin.org/en/developer-guide#null-data" target="_"blank">OP_RETURN</a>.</label>
+									<label><input type="checkbox" id="opReturn" class="checkbox-inline"> Allow data to be sent within the transaction and stored in the blockchain by using <a href="https://bitcoin.org/en/developer-guide#null-data" target="_blank">OP_RETURN</a>.</label>
 									<div class="text-muted">When using this option you may enter a hex string or address into the address field on the output tab.</div>
 								</p>
 
@@ -1174,18 +1193,26 @@
 							<div class="row">
 								<div class="col-md-8">
 									<b>Path</b><br>
-									<select class="form-control">
-										<option>Simple: m/i</option>
+									<select class="form-control" id="hdpathtype"">
+										<option value="simple">Simple: m/i</option>
+										<option value="custom">Custom</option>
 									</select>
+
+									<div id="hdpath" class="hidden" style="margin-top:4px">
+										<span class="input-group">
+											<input type="text" class="form-control" value="m/0/1">  <br>
+											<span class="input-group-addon"> / </span>
+										</span>
+									</div>
 								</div>
 
 								<div class="col-md-2">
-									<b>Index (Start)</b><br>
+									<b><u>I</u>ndex (Start)</b><br>
 									<input type="text" class="form-control derivation_index_start" value="0">
 								</div>
 
 								<div class="col-md-2">
-									<b>Index (End)</b><br>
+									<b><u>I</u>ndex (End)</b><br>
 									<input type="text" class="form-control derivation_index_end" value="1">
 								</div>
 
@@ -1306,7 +1333,7 @@
 
 					<div class="tab-pane tab-content" id="about">
 						<h2>About <small>open source bitcoin wallet</small></h2>
-						<p>Version 1.4</p>
+						<p>Version 1.5</p>
 						<p>Compatible with bitcoin core</p>
 						<p>Github <a href="https://github.com/OutCast3k/coinbin/">https://github.com/OutCast3k/coinbin/</a></p>
 						<p>TOR <a href="http://4zpinp6gdkjfplhk.onion">4zpinp6gdkjfplhk.onion</a></p>
@@ -1334,7 +1361,8 @@
 								<p class="text-muted">Select which network you'd like to use for key pair generation.</p>
 								<select class="form-control" id="coinjs_coin">
 									<option value="bitcoin_mainnet" rel="0x00;0x80;0x05;0x488b21e;0x488ade4;coinb.in;coinb.in">Bitcoin (mainnet)</option>
-									<option value="dogecoin_mainnet" rel="0x1e;0x9e;0x16;0x0827421e;0x089944e4;chain.so_dogecoin;chain.so_dogecoin">Dogecoin (mainnet)</option>
+									<option value="litecoin_mainnet" rel="0x30;0xb0;0x32;0x019da462;0x019d9cfe;blockcypher_litecoin;blockcypher_litecoin">Litecoin (mainnet)</option>
+									<option value="dogecoin_mainnet" rel="0x1e;0x9e;0x16;0x0827421e;0x089944e4;blockcypher_dogecoin;blockcypher_dogecoin">Dogecoin (mainnet)</option>
 									<option value="carboncoin_mainnet" rel="0x2f;0xaf;0x05;0x488b21e;0x488ade4;cryptoid.info_carboncoin;cryptoid.info_carboncoin">Carboncoin (mainnet)</option>
 									<option value="shadowcash_mainnet" rel="0x3f;0xbf;0x7d;0xee80286a;0xee8031e8;false;false">ShadowCash (mainnet)</option>
 									<option value="bitcoin_testnet" rel="0x6f;0xef;0xc4;0x043587cf;0x04358394;false;false">Bitcoin (testnet)</option>
@@ -1391,8 +1419,14 @@
 								<p class="text-muted">Select the network you wish to broadcast the transaction via</p>
 								<select class="form-control" id="coinjs_broadcast">
 									<option value="coinb.in">coinb.in (Bitcoin mainnet)</option>
-									<option value="chain.so_bitcoinmainnet"> Chain.so (Bitcoin mainnet)</option>
 									<option value="blockcypher_bitcoinmainnet"> Blockcypher.com (Bitcoin mainnet)</option>
+									<option value="blockcypher_litecoin"> Blockcypher.com (Litecoin)</option>
+									<option value="blockcypher_dogecoin"> Blockcypher.com (Dogecoin)</option>
+									<option value="blockchair_bitcoinmainnet"> Blockchair.com (Bitcoin mainnet)</option>
+									<option value="blockchair_litecoin"> Blockchair.com (Litecoin)</option>
+									<option value="blockchair_dogecoin"> Blockchair.com (Dogecoin)</option>
+									<option value="chain.so_bitcoinmainnet"> Chain.so (Bitcoin mainnet)</option>
+									<option value="chain.so_litecoin"> Chain.so (Litecoin)</option>
 									<option value="chain.so_dogecoin"> Chain.so (Dogecoin)</option>
 									<option value="cryptoid.info_carboncoin"> Cryptoid.info (Carboncoin)</option>
 								</select>
@@ -1407,6 +1441,13 @@
 								<p class="text-muted">Select the network you wish to retreive your unspent inputs from</p>
 								<select class="form-control" id="coinjs_utxo">
 									<option value="coinb.in">coinb.in (Bitcoin mainnet)</option>
+									<option value="blockcypher_bitcoinmainnet"> Blockcypher.com (Bitcoin mainnet)</option>
+									<option value="blockcypher_litecoin"> Blockcypher.com (Litecoin)</option>
+									<option value="blockcypher_dogecoin"> Blockcypher.com (Dogecoin)</option>
+									<option value="blockchair_bitcoinmainnet"> Blockchair.com (Bitcoin mainnet)</option>
+									<option value="blockchair_litecoin"> Blockchair.com (Litecoin)</option>
+									<option value="blockchair_dogecoin"> Blockchair.com (Dogecoin)</option>
+									<option value="chain.so_bitcoinmainnet"> Chain.so (Bitcoin mainnet)</option>
 									<option value="chain.so_litecoin"> Chain.so (Litecoin)</option>
 									<option value="chain.so_dogecoin"> Chain.so (Dogecoin)</option>
 									<option value="cryptoid.info_carboncoin"> Cryptoid.info (Carboncoin)</option>
@@ -1433,7 +1474,7 @@
 
 		<div id="footer">
 			<div class="container text-right">
-	        		<p class="text-muted">Version 1.4</p>
+	        		<p class="text-muted">Version 1.5</p>
 			</div>
 		</div>
 

js/coin.js

@@ -22,7 +22,8 @@
 	coinjs.developer = '3K1oFZMks41C7qDYBsr72SYjapLqDuSYuN'; //bitcoin
 
 	/* bit(coinb.in) api vars */
-	coinjs.host = ('https:'==document.location.protocol?'https://':'http://')+'coinb.in/api/';
+	coinjs.hostname	= ((document.location.hostname.split(".")[(document.location.hostname.split(".")).length-1]) == 'onion') ? '4zpinp6gdkjfplhk.onion' : 'coinb.in';
+	coinjs.host = ('https:'==document.location.protocol?'https://':'http://')+coinjs.hostname+'/api/';
 	coinjs.uid = '1';
 	coinjs.key = '12345678901234567890123456789012';
 
@@ -155,7 +156,11 @@
 		}
 
 		var s = coinjs.script();
-		s.writeBytes(coinjs.numToByteArray(checklocktimeverify));
+		if (checklocktimeverify <= 16 && checklocktimeverify >= 1) {
+			s.writeOp(0x50 + checklocktimeverify);//OP_1 to OP_16 for minimal encoding
+		} else {
+			s.writeBytes(coinjs.numToScriptNumBytes(checklocktimeverify));
+		}
 		s.writeOp(177);//OP_CHECKLOCKTIMEVERIFY
 		s.writeOp(117);//OP_DROP
 		s.writeBytes(Crypto.util.hexToBytes(pubkey));
@@ -633,6 +638,8 @@
 
 				coinjs.compressed = c; // reset to default
 			}
+
+			return r;
 		}
 
 		// extend prv/pub key
@@ -646,8 +653,37 @@
 				'pubkey':this.keys.pubkey});
 		}
 
+		// derive from path
+		r.derive_path = function(path) {
+
+			if( path == 'm' || path == 'M' || path == 'm\'' || path == 'M\'' ) return this;
+
+			var p = path.split('/');
+			var hdp = coinjs.clone(this);  // clone hd path
+
+			for( var i in p ) {
+
+				if((( i == 0 ) && c != 'm') || i == 'remove'){
+					continue;
+				}
+
+				var c = p[i];
+
+				var use_private = (c.length > 1) && (c[c.length-1] == '\'');
+				var child_index = parseInt(use_private ? c.slice(0, c.length - 1) : c) & 0x7fffffff;
+				if(use_private)
+					child_index += 0x80000000;
+
+				hdp = hdp.derive(child_index);
+				var key = ((hdp.keys_extended.privkey) && hdp.keys_extended.privkey!='') ? hdp.keys_extended.privkey : hdp.keys_extended.pubkey;
+				hdp = coinjs.hd(key);
+			}
+			return hdp;
+		}
+
 		// derive key from index
 		r.derive = function(i){
+
 			i = (i)?i:0;
 			var blob = (Crypto.util.hexToBytes(this.keys.pubkey)).concat(coinjs.numToBytes(i,4).reverse());
 
@@ -702,7 +738,6 @@
 
 			o.parent_fingerprint = (ripemd160(Crypto.SHA256(Crypto.util.hexToBytes(r.keys.pubkey),{asBytes:true}),{asBytes:true})).slice(0,4);
 			o.keys_extended = o.extend();
-
 			return o;
 		}
 
@@ -767,8 +802,7 @@
 			return o;
 		}
 
-		r.parse();
-		return r;
+		return r.parse();
 	}
 
 
@@ -846,6 +880,9 @@
 					var multi = coinjs.pubkeys2MultisigAddress(pubkeys, r.signaturesRequired);
 					r.address = multi['address'];
 					r.type = 'multisig__'; // using __ for now to differentiat from the other object .type == "multisig"
+					var rs = Crypto.util.bytesToHex(s.buffer);
+					r.redeemscript = rs;
+
 				} else if((s.chunks.length==2) && (s.buffer[0] == 0 && s.buffer[1] == 20)){ // SEGWIT
 					r = {};
 					r.type = "segwit__";
@@ -859,6 +896,8 @@
 					r.pubkey = Crypto.util.bytesToHex(s.chunks[3]);
 					r.checklocktimeverify = coinjs.bytesToNum(s.chunks[0].slice());
 					r.address = coinjs.simpleHodlAddress(r.pubkey, r.checklocktimeverify).address;
+					var rs = Crypto.util.bytesToHex(s.buffer);
+					r.redeemscript = rs;
 					r.type = "hodl__";
 				}
 			} catch(e) {
@@ -1918,12 +1957,31 @@
 		}
 	}
 
-	coinjs.numToByteArray = function(num) {
-		if (num <= 256) { 
-			return [num];
-		} else {
-			return [num % 256].concat(coinjs.numToByteArray(Math.floor(num / 256)));
+	function scriptNumSize(i) {
+		return i > 0x7fffffff ? 5
+			: i > 0x7fffff ? 4
+			: i > 0x7fff ? 3
+			: i > 0x7f ? 2
+			: i > 0x00 ? 1
+			: 0;
+	}
+
+	coinjs.numToScriptNumBytes = function(_number) {
+		var value = Math.abs(_number);
+		var size = scriptNumSize(value);
+		var result = [];
+		for (var i = 0; i < size; ++i) {
+			result.push(0);
 		}
+		var negative = _number < 0;
+		for (i = 0; i < size; ++i) {
+			result[i] = value & 0xff;
+			value = Math.floor(value / 256);
+		}
+		if (negative) {
+			result[size - 1] |= 0x80;
+		}
+		return result;
 	}
 
 	coinjs.numToVarInt = function(num) {

js/coinbin.js

@@ -171,7 +171,7 @@ $(document).ready(function() {
 			script = sw.redeemscript;
 		}
 
-		var sequence = false;
+		var sequence = 0xffffffff-1;
 		if($("#walletRBF").is(":checked")){
 			sequence = 0xffffffff-2;
 		}
@@ -344,7 +344,22 @@ $(document).ready(function() {
 			$("#aes256passStatus").removeClass("hidden");
 		}
 		$("#newPrivKeyEnc").val(CryptoJS.AES.encrypt(coin.wif, $("#aes256pass").val())+'');
+	});
+	
+	$("#newPaperwalletBtn").click(function(){
+		if($("#newBitcoinAddress").val()==""){
+			$("#newKeysBtn").click();
+		}
 
+		var paperwallet = window.open();
+		paperwallet.document.write('<h2>BTC PaperWallet</h2><hr><div style="margin-top: 5px; margin-bottom: 5px"><div><h3 style="margin-top: 0">Address (Share)</h3></div><div style="text-align: center;"><div id="qraddress"></div><p>'+$("#newBitcoinAddress").val()+'</p></div></div><hr><div style="margin-top: 5px; margin-bottom: 5px"><div><h3 style="margin-top: 0">Public Key</h3></div><div style="text-align: center;"><div id="qrpubkey"></div><p>'+$("#newPubKey").val()+'</p></div></div><hr><div style="margin-top: 5px; margin-bottom: 5px"><div><h3 style="margin-top: 0">Private Key (KEEP SECRET!)</h3></div><div style="text-align: center;"><div id="qrprivkey"></div><p>'+$("#newPrivKey").val()+'</p></div></div>');
+		paperwallet.document.close();
+		paperwallet.focus();
+		new QRCode(paperwallet.document.getElementById("qraddress"), {text: $("#newBitcoinAddress").val(), width: 125, height: 125});
+		new QRCode(paperwallet.document.getElementById("qrpubkey"), {text: $("#newPubKey").val(), width: 125, height: 125});
+		new QRCode(paperwallet.document.getElementById("qrprivkey"), {text: $("#newPrivKey").val(), width: 125, height: 125});
+		paperwallet.print();
+		paperwallet.close();
 	});
 
 	$("#newBrainwallet").click(function(){
@@ -392,6 +407,22 @@ $(document).ready(function() {
 		coinjs.compressed = compressed;
 	});
 
+	$("#newSegwitPaperwalletBtn").click(function(){
+		if($("#newSegWitAddress").val()==""){
+			$("#newSegWitKeysBtn").click();
+		}
+
+		var paperwallet = window.open();
+		paperwallet.document.write('<h2>BTC SegWit PaperWallet</h2><hr><div style="margin-top: 5px; margin-bottom: 5px"><div><h3 style="margin-top: 0">Address (Share)</h3></div><div style="text-align: center;"><div id="qraddress"></div><p>'+$("#newSegWitAddress").val()+'</p></div></div><hr><div style="margin-top: 5px; margin-bottom: 5px"><div><h3 style="margin-top: 0">Public Key</h3></div><div style="text-align: center;"><div id="qrpubkey"></div><p>'+$("#newSegWitPubKey").val()+'</p></div></div><hr><div style="margin-top: 5px; margin-bottom: 5px"><div><h3 style="margin-top: 0">Redeem Script</h3></div><div style="text-align: center;"><div id="qrredeem"></div><p>'+$("#newSegWitRedeemScript").val()+'</p></div></div><hr><div style="margin-top: 5px; margin-bottom: 5px"><div><h3 style="margin-top: 0">Private Key (KEEP SECRET!)</h3></div><div style="text-align: center;"><div id="qrprivkey"></div><p>'+$("#newSegWitPrivKey").val()+'</p></div></div>');
+		paperwallet.document.close();
+		paperwallet.focus();
+		new QRCode(paperwallet.document.getElementById("qraddress"), {text: $("#newSegWitAddress").val(), width: 110, height: 110});
+		new QRCode(paperwallet.document.getElementById("qrpubkey"), {text: $("#newSegWitPubKey").val(), width: 110, height: 110});
+		new QRCode(paperwallet.document.getElementById("qrredeem"), {text: $("#newSegWitRedeemScript").val(), width: 110, height: 110});
+		new QRCode(paperwallet.document.getElementById("qrprivkey"), {text: $("#newSegWitPrivKey").val(), width: 110, height: 110});
+		paperwallet.print();
+		paperwallet.close();
+	});
 
 	/* new -> multisig code */
 
@@ -625,7 +656,7 @@ $(document).ready(function() {
 			}
 
 			if(!$(o).hasClass("has-error")){
-				var seq = null;
+				var seq = 0xffffffff-1;
 				if($("#txRBF").is(":checked")){
 					seq = 0xffffffff-2;
 				}
@@ -854,7 +885,7 @@ $(document).ready(function() {
 	/* redeem from button code */
 
 	$("#redeemFromBtn").click(function(){
-		var redeem = redeemingFrom($("#redeemFrom").val());
+		var redeem = redeemingFrom($("#redeemFrom").val());	
 
 		$("#redeemFromStatus, #redeemFromAddress").addClass('hidden');
 
@@ -876,11 +907,32 @@ $(document).ready(function() {
 
 		var host = $(this).attr('rel');
 
+        // api:             blockcypher     blockchair      chain.so
+        // network name     "btc"           "bitcoin"       "BTC"
+        // network name     "ltc"           "litecoin"      "LTC"
+        // network name     "doge"          "dogecoin"      "DOGE"
 
-		if(host=='chain.so_litecoin'){
-			listUnspentChainso_Litecoin(redeem);
+		if(host=='chain.so_bitcoinmainnet'){
+			listUnspentChainso(redeem, "BTC");
+        } else if(host=='chain.so_litecoin'){
+			listUnspentChainso(redeem, "LTC");
 		} else if(host=='chain.so_dogecoin'){
-			listUnspentChainso_Dogecoin(redeem);
+			listUnspentChainso(redeem, "DOGE");
+
+		} else if(host=='blockcypher_bitcoinmainnet'){
+			listUnspentBlockcypher(redeem, "btc");
+        } else if(host=='blockcypher_litecoin'){
+			listUnspentBlockcypher(redeem, "ltc");
+		} else if(host=='blockcypher_dogecoin'){
+			listUnspentBlockcypher(redeem, "doge");
+
+		} else if(host=='blockchair_bitcoinmainnet'){
+			listUnspentBlockchair(redeem, "bitcoin");
+        } else if(host=='blockchair_litecoin'){
+			listUnspentBlockchair(redeem, "litecoin");
+		} else if(host=='blockchair_dogecoin'){
+			listUnspentBlockchair(redeem, "dogecoin");
+
 		} else if(host=='cryptoid.info_carboncoin'){
 			listUnspentCryptoidinfo_Carboncoin(redeem);
 		} else {
@@ -889,8 +941,8 @@ $(document).ready(function() {
 
 		if($("#redeemFromStatus").hasClass("hidden")) {
 			// An ethical dilemma: Should we automatically set nLockTime?
-			if(redeem.from == 'redeemScript' && redeem.decodedRs.type == "hodl__") {
-				$("#nLockTime").val(redeem.decodedRs.checklocktimeverify);
+			if(redeem.from == 'redeemScript' && redeem.type == "hodl__") {
+				$("#nLockTime").val(redeem.decodescript.checklocktimeverify);
 			} else {
 				$("#nLockTime").val(0);
 			}
@@ -926,7 +978,9 @@ $(document).ready(function() {
 				r.addr = decodeRs['address'];
 				r.from = 'redeemScript';
 				r.decodedRs = decodeRs.redeemscript;
+				r.type = decodeRs['type'];
 				r.redeemscript = true;
+				r.decodescript = decodeRs;
 			} else { // something else
 				r.addr = '';
 				r.from = 'other';
@@ -1022,25 +1076,28 @@ $(document).ready(function() {
 	}
 
 
-	/* retrieve unspent data from chainso for litecoin */
-	function listUnspentChainso_Litecoin(redeem){
+	/* retrieve unspent data from blockcypher */
+	function listUnspentBlockcypher(redeem,network){
 		$.ajax ({
 			type: "GET",
-			url: "https://chain.so/api/v2/get_tx_unspent/ltc/"+redeem.addr,
+			url: "https://api.blockcypher.com/v1/"+network+"/main/addrs/"+redeem.addr+"?includeScript=true&unspentOnly=true",
 			dataType: "json",
 			error: function(data) {
 				$("#redeemFromStatus").removeClass('hidden').html('<span class="glyphicon glyphicon-exclamation-sign"></span> Unexpected error, unable to retrieve unspent outputs!');
 			},
 			success: function(data) {
-				if((data.status && data.data) && data.status=='success'){
-					$("#redeemFromAddress").removeClass('hidden').html('<span class="glyphicon glyphicon-info-sign"></span> Retrieved unspent inputs from address <a href="'+explorer_addr+redeem.addr+'" target="_blank">'+redeem.addr+'</a>');
-					for(var i in data.data.txs){
-						var o = data.data.txs[i];
-						var tx = ((o.txid).match(/.{1,2}/g).reverse()).join("")+'';
-						var n = o.output_no;
-						var script = (redeem.redeemscript==true) ? redeem.decodedRs : o.script_hex;
-						var amount = o.value;
-						addOutput(tx, n, script, amount);
+				if (data.address) { // address field will always be present, txrefs is only present if there are UTXOs
+					$("#redeemFromAddress").removeClass('hidden').html(
+						'<span class="glyphicon glyphicon-info-sign"></span> Retrieved unspent inputs from address <a href="'+explorer_addr+redeem.addr+'" target="_blank">'+redeem.addr+'</a>');
+					for(var i in data.txrefs){
+                        var o = data.txrefs[i]
+						var tx = ((""+o.tx_hash).match(/.{1,2}/g).reverse()).join("")+'';
+						if(tx.match(/^[a-f0-9]+$/)){
+							var n = o.tx_output_n;
+							var script = (redeem.redeemscript==true) ? redeem.decodedRs : o.script;
+							var amount = ((o.value.toString()*1)/100000000).toFixed(8);
+							addOutput(tx, n, script, amount);
+						}
 					}
 				} else {
 					$("#redeemFromStatus").removeClass('hidden').html('<span class="glyphicon glyphicon-exclamation-sign"></span> Unexpected error, unable to retrieve unspent outputs.');
@@ -1087,19 +1144,54 @@ $(document).ready(function() {
 
 	}
 
-	/* retrieve unspent data from chain.so for dogecoin */
-	function listUnspentChainso_Dogecoin(redeem){
+
+	/* retrieve unspent data from blockchair */
+	function listUnspentBlockchair(redeem,network){
 		$.ajax ({
 			type: "GET",
-			url: "https://chain.so/api/v2/get_tx_unspent/doge/"+redeem.addr,
+			url: "https://api.blockchair.com/"+network+"/dashboards/address/"+redeem.addr,
+			dataType: "json",
+			error: function(data) {
+				$("#redeemFromStatus").removeClass('hidden').html('<span class="glyphicon glyphicon-exclamation-sign"></span> Unexpected error, unable to retrieve unspent outputs!');
+			},
+			success: function(data) {
+				if((data.context && data.data) && data.context.code =='200'){
+					$("#redeemFromAddress").removeClass('hidden').html('<span class="glyphicon glyphicon-info-sign"></span> Retrieved unspent inputs from address <a href="'+explorer_addr+redeem.addr+'" target="_blank">'+redeem.addr+'</a>');
+					var all_info = data.data[redeem.addr];
+					for(var i in all_info.utxo){
+						var o = all_info.utxo[i];
+						var tx = ((""+o.transaction_hash).match(/.{1,2}/g).reverse()).join("")+'';
+						if(tx.match(/^[a-f0-9]+$/)){
+							var n = o.index;
+							var script = (redeem.redeemscript==true) ? redeem.decodedRs : all_info.address.script_hex;
+							var amount = ((o.value.toString()*1)/100000000).toFixed(8);
+							addOutput(tx, n, script, amount);
+						}
+					}
+				} else {
+					$("#redeemFromStatus").removeClass('hidden').html('<span class="glyphicon glyphicon-exclamation-sign"></span> Unexpected error, unable to retrieve unspent outputs.');
+				}
+			},
+			complete: function(data, status) {
+				$("#redeemFromBtn").html("Load").attr('disabled',false);
+				totalInputAmount();
+			}
+		});
+	}
+
+
+	/* retrieve unspent data from chainso */
+	function listUnspentChainso(redeem, network){
+		$.ajax ({
+			type: "GET",
+			url: "https://chain.so/api/v2/get_tx_unspent/"+network+"/"+redeem.addr,
 			dataType: "json",
 			error: function(data) {
 				$("#redeemFromStatus").removeClass('hidden').html('<span class="glyphicon glyphicon-exclamation-sign"></span> Unexpected error, unable to retrieve unspent outputs!');
 			},
 			success: function(data) {
 				if((data.status && data.data) && data.status=='success'){
-					$("#redeemFromAddress").removeClass('hidden').html(
-						'<span class="glyphicon glyphicon-info-sign"></span> Retrieved unspent inputs from address <a href="'+explorer_addr+redeem.addr+'" target="_blank">'+redeem.addr+'</a>');
+					$("#redeemFromAddress").removeClass('hidden').html('<span class="glyphicon glyphicon-info-sign"></span> Retrieved unspent inputs from address <a href="'+explorer_addr+redeem.addr+'" target="_blank">'+redeem.addr+'</a>');
 					for(var i in data.data.txs){
 						var o = data.data.txs[i];
 						var tx = ((""+o.txid).match(/.{1,2}/g).reverse()).join("")+'';
@@ -1121,6 +1213,7 @@ $(document).ready(function() {
 		});
 	}
 
+
 	/* math to calculate the inputs and outputs */
 
 	function totalInputAmount(){
@@ -1180,7 +1273,7 @@ $(document).ready(function() {
 		rawSubmitDefault(this);
 	});
 
-	// broadcast transaction vai coinbin (default)
+	// broadcast transaction via coinbin (default)
 	function rawSubmitDefault(btn){ 
 		var thisbtn = btn;		
 		$(thisbtn).val('Please wait, loading...').attr('disabled',true);
@@ -1195,8 +1288,7 @@ $(document).ready(function() {
                         success: function(data) {
 				$("#rawTransactionStatus").html(unescape($(data).find("response").text()).replace(/\+/g,' ')).removeClass('hidden');
 				if($(data).find("result").text()==1){
-					$("#rawTransactionStatus").addClass('alert-success').removeClass('alert-danger');
-					$("#rawTransactionStatus").html('txid: '+$(data).find("txid").text());
+					$("#rawTransactionStatus").addClass('alert-success').removeClass('alert-danger').removeClass("hidden").html(' TXID: ' + $(data).find("txid").text() + '<br> <a href="https://coinb.in/tx/' + $(data).find("txid").text() + '" target="_blank">View on Blockchain</a>');
 				} else {
 					$("#rawTransactionStatus").addClass('alert-danger').removeClass('alert-success').prepend('<span class="glyphicon glyphicon-exclamation-sign"></span> ');
 				}
@@ -1222,8 +1314,7 @@ $(document).ready(function() {
                         success: function(data) {
 				$("#rawTransactionStatus").html(unescape($(data).find("response").text()).replace(/\+/g,' ')).removeClass('hidden');
 				if($(data).find("result").text()==1){
-					$("#rawTransactionStatus").addClass('alert-success').removeClass('alert-danger');
-					$("#rawTransactionStatus").html('txid: '+$(data).find("txid").text());
+					$("#rawTransactionStatus").addClass('alert-success').removeClass('alert-danger').removeClass("hidden").html(' TXID: ' + $(data).find("txid").text() + '<br> <a href="https://chainz.cryptoid.info/carbon/tx.dws?' + $(data).find("txid").text() + '" target="_blank">View on Blockchain Explorer</a>');
 				} else {
 					$("#rawTransactionStatus").addClass('alert-danger').removeClass('alert-success').prepend('<span class="glyphicon glyphicon-exclamation-sign"></span> ');
 				}
@@ -1236,11 +1327,11 @@ $(document).ready(function() {
 	}
 
 	// broadcast transaction via chain.so (mainnet)
-	function rawSubmitChainso_BitcoinMainnet(thisbtn){ 
+	function rawSubmitChainso(thisbtn, network){ 
 		$(thisbtn).val('Please wait, loading...').attr('disabled',true);
 		$.ajax ({
 			type: "POST",
-			url: "https://chain.so/api/v2/send_tx/BTC/",
+			url: "https://chain.so/api/v2/send_tx/"+network+"/",
 			data: {"tx_hex":$("#rawTransaction").val()},
 			dataType: "json",
 			error: function(data) {
@@ -1252,7 +1343,7 @@ $(document).ready(function() {
 			},
                         success: function(data) {
 				if(data.status && data.data.txid){
-					$("#rawTransactionStatus").addClass('alert-success').removeClass('alert-danger').removeClass("hidden").html(' Txid: '+data.data.txid);
+					$("#rawTransactionStatus").addClass('alert-success').removeClass('alert-danger').removeClass("hidden").html(' TXID: ' + data.data.txid + '<br> <a href="https://chain.so/tx/'+network+'/' + data.data.txid + '" target="_blank">View on Blockchain Explorer</a>');
 				} else {
 					$("#rawTransactionStatus").addClass('alert-danger').removeClass('alert-success').removeClass("hidden").html(' Unexpected error, please try again').prepend('<span class="glyphicon glyphicon-exclamation-sign"></span>');
 				}				
@@ -1265,22 +1356,20 @@ $(document).ready(function() {
 	}
 
 	// broadcast transaction via blockcypher.com (mainnet)
-	function rawSubmitblockcypher_BitcoinMainnet(thisbtn){ 
+	function rawSubmitblockcypher(thisbtn, network){ 
 		$(thisbtn).val('Please wait, loading...').attr('disabled',true);
 		$.ajax ({
 			type: "POST",
-			url: "https://api.blockcypher.com/v1/btc/main/txs/push",
+			url: "https://api.blockcypher.com/v1/"+network+"/main/txs/push",
 			data: JSON.stringify({"tx":$("#rawTransaction").val()}),
 			error: function(data) {
-				var obj = $.parseJSON(data.responseText);
-				var r = ' ';
-				r += (obj.error) ? obj.error : '';
-				r = (r!='') ? r : ' Failed to broadcast'; // build response 
+				var r = 'Failed to broadcast: error code=' + data.status.toString() + ' ' + data.statusText;
 				$("#rawTransactionStatus").addClass('alert-danger').removeClass('alert-success').removeClass("hidden").html(r).prepend('<span class="glyphicon glyphicon-exclamation-sign"></span>');
 			},
                         success: function(data) {
 				if((data.tx) && data.tx.hash){
-					$("#rawTransactionStatus").addClass('alert-success').removeClass('alert-danger').removeClass("hidden").html(' Txid: '+data.tx.hash);
+					$("#rawTransactionStatus").addClass('alert-success').removeClass('alert-danger').removeClass("hidden")
+                    .html(' TXID: ' + data.tx.hash + '<br> <a href="https://live.blockcypher.com/'+network+'/tx/' + data.tx.hash + '" target="_blank">View on Blockchain Explorer</a>');
 				} else {
 					$("#rawTransactionStatus").addClass('alert-danger').removeClass('alert-success').removeClass("hidden").html(' Unexpected error, please try again').prepend('<span class="glyphicon glyphicon-exclamation-sign"></span>');
 				}
@@ -1292,27 +1381,24 @@ $(document).ready(function() {
 		});
 	}
 
-
-	// broadcast transaction via chain.so for dogecoin
-	function rawSubmitchainso_dogecoin(thisbtn){ 
+	// broadcast transaction via blockchair
+	function rawSubmitblockchair(thisbtn, network){
 		$(thisbtn).val('Please wait, loading...').attr('disabled',true);
                 $.ajax ({
                         type: "POST",
-                        url: "https://chain.so/api/v2/send_tx/DOGE",
-			data: {"tx_hex":$("#rawTransaction").val()},
+                        url: "https://api.blockchair.com/"+network+"/push/transaction",
+                        data: {"data":$("#rawTransaction").val()},
                         dataType: "json",
                         error: function(data) {
-				var obj = $.parseJSON(data.responseText);
-				var r = ' ';
-				r += (obj.data.tx_hex) ? ' '+obj.data.tx_hex : '';
-				r = (r!='') ? r : ' Failed to broadcast'; // build response 
+				var r = 'Failed to broadcast: error code=' + data.status.toString() + ' ' + data.statusText;
 				$("#rawTransactionStatus").addClass('alert-danger').removeClass('alert-success').removeClass("hidden").html(r).prepend('<span class="glyphicon glyphicon-exclamation-sign"></span>');
 			//	console.error(JSON.stringify(data, null, 4));
                         },
                         success: function(data) {
 			//	console.info(JSON.stringify(data, null, 4));
-				if((data.status && data.data) && data.status=='success'){
-					$("#rawTransactionStatus").addClass('alert-success').removeClass('alert-danger').removeClass("hidden").html(' Txid: ' + data.data.txid);
+				if((data.context && data.data) && data.context.code=='200'){
+					$("#rawTransactionStatus").addClass('alert-success').removeClass('alert-danger').removeClass("hidden")
+                    .html(' TXID: ' + data.data.transaction_hash + '<br> <a href="https://blockchair.com/'+network+'/transaction/' + data.data.transaction_hash + '" target="_blank">View on Blockchain Explorer</a>');
 				} else {
 					$("#rawTransactionStatus").addClass('alert-danger').removeClass('alert-success').removeClass("hidden").html(' Unexpected error, please try again').prepend('<span class="glyphicon glyphicon-exclamation-sign"></span>');
 				}
@@ -1574,7 +1660,11 @@ $(document).ready(function() {
 		var html = '';
 		$("#verifyHDaddress .derived_data table tbody").html("");
 		for(var i=index_start;i<=index_end;i++){
-			var derived = hd.derive(i);
+			if($("#hdpathtype option:selected").val()=='simple'){
+				var derived = hd.derive(i);
+			} else {
+				var derived = hd.derive_path(($("#hdpath input").val().replace(/\/+$/, ""))+'/'+i);
+			}
 			html += '<tr>';
 			html += '<td>'+i+'</td>';
 			html += '<td><input type="text" class="form-control" value="'+derived.keys.address+'" readonly></td>';
@@ -1587,6 +1677,15 @@ $(document).ready(function() {
 	}
 
 
+	$("#hdpathtype").change(function(){
+		if($(this).val()=='simple'){
+			$("#hdpath").removeClass().addClass("hidden");
+		} else {
+			$("#hdpath").removeClass();
+		}
+	});
+
+
 	/* sign code */
 
 	$("#signBtn").click(function(){
@@ -1717,7 +1816,7 @@ $(document).ready(function() {
 
 	$('a[data-toggle="tab"]').on('click', function(e) {
 		e.preventDefault();
-		if(e.target){
+		if(e.target && $(e.target).attr('href')) {
 			history.pushState(null, null, '#'+$(e.target).attr('href').substr(1));
 		}
 	});
@@ -1772,6 +1871,14 @@ $(document).ready(function() {
 			configureBroadcast();
 			configureGetUnspentTx();
 
+            if (coinjs.pub == 0x30){   // LTC
+                explorer_addr = "https://chain.so/address/LTC/";
+                coinjs.bech32.hrp = "ltc";
+            }
+            else if (coinjs.pub == 0x1e){   // DOGE
+                explorer_addr = "https://chain.so/address/DOGE/";
+            }
+
 			$("#statusSettings").addClass("alert-success").removeClass("hidden").html("<span class=\"glyphicon glyphicon-ok\"></span> Settings updates successfully").fadeOut().fadeIn();	
 		} else {
 			$("#statusSettings").addClass("alert-danger").removeClass("hidden").html("There is an error with one or more of your settings");	
@@ -1817,18 +1924,48 @@ $(document).ready(function() {
 
 	function configureBroadcast(){
 		var host = $("#coinjs_broadcast option:selected").val();
+
+        // api:             blockcypher     blockchair      chain.so
+        // network name     "btc"           "bitcoin"       "BTC"
+        // network name     "ltc"           "litecoin"      "LTC"
+        // network name     "doge"          "dogecoin"      "DOGE"
+
 		$("#rawSubmitBtn").unbind("");
 		if(host=="chain.so_bitcoinmainnet"){
 			$("#rawSubmitBtn").click(function(){
-				rawSubmitChainso_BitcoinMainnet(this);
+				rawSubmitChainso(this, "BTC");
+			});
+		} else if(host=="chain.so_litecoin"){
+			$("#rawSubmitBtn").click(function(){
+				rawSubmitchainso(this, "LTC");
 			});
 		} else if(host=="chain.so_dogecoin"){
 			$("#rawSubmitBtn").click(function(){
-				rawSubmitchainso_dogecoin(this);
+				rawSubmitchainso(this, "DOGE");
 			});
 		} else if(host=="blockcypher_bitcoinmainnet"){
 			$("#rawSubmitBtn").click(function(){
-				rawSubmitblockcypher_BitcoinMainnet(this);
+				rawSubmitblockcypher(this, "btc");
+			});
+		} else if(host=="blockcypher_litecoin"){
+			$("#rawSubmitBtn").click(function(){
+				rawSubmitblockcypher(this, "ltc");
+			});
+		} else if(host=="blockcypher_dogecoin"){
+			$("#rawSubmitBtn").click(function(){
+				rawSubmitblockcypher(this, "doge");
+			});
+		} else if(host=="blockchair_bitcoinmainnet"){
+			$("#rawSubmitBtn").click(function(){
+				rawSubmitblockchair(this, "bitcoin");
+			});
+		} else if(host=="blockchair_litecoin"){
+			$("#rawSubmitBtn").click(function(){
+				rawSubmitblockchair(this, "litecoin");
+			});
+		} else if(host=="blockchair_dogecoin"){
+			$("#rawSubmitBtn").click(function(){
+				rawSubmitblockchair(this, "dogecoin");
 			});
 		} else if(host=="cryptoid.info_carboncoin"){
 			$("#rawSubmitBtn").click(function(){

sha1sum

@@ -1,9 +1,9 @@
----- Version 1.4 2018.06.19 ---
+---- Version 1.4 2019.12.25 ----
 77e4519962e2f6a9fc93342137dbb31c33b76b04  ./js/aes.js
 3a09a8fc0cfe828b57fc798d668234d0490ee1a6  ./js/bootstrap-datetimepicker.min.js
 253711c6d825de55a8360552573be950da180614  ./js/bootstrap.min.js
-988f99187ab356bc5d12b61572f463e1785c15c2  ./js/coinbin.js
-8b4163122d907f9c363b9afd8809490f5ba202c8  ./js/coin.js
+17cc6a56ee601fbe3858563f26232f64ce12abcb  ./js/coinbin.js
+dc83017470f3ced2b0d522781b3ccded0d3a8d28  ./js/coin.js
 988565bc2cb402d63ed5c5fd7ff47c4278efc2c5  ./js/collapse.js
 9ba5ede3d7f9d4c8fd623395f196adfdcf7e970f  ./js/crypto-min.js
 f7c09f2f5a721371e7d478050119f7e2d58e3ef9  ./js/crypto-sha256-hmac.js
@@ -30,5 +30,5 @@ ca35b697d99cae4d1b60f2d60fcd37771987eb07  ./fonts/glyphicons-halflings-regular.w
 de51a8494180a6db074af2dee2383f0a363c5b08  ./fonts/glyphicons-halflings-regular.svg
 278e49a86e634da6f2a02f3b47dd9d2a8f26210f  ./fonts/glyphicons-halflings-regular.woff
 44bc1850f570972267b169ae18f1cb06b611ffa2  ./fonts/glyphicons-halflings-regular.ttf
-c024021c71cba503979a859d23cbf7a88b570d82  ./README.md
-26552aac02a06e88b419539f93032de8a25e1edd  ./index.html
+4665ee4d8ca96db25954f6f3587ac367386eb9e8  ./README.md
+9cf7084c331b7c536f5f6e34533300c3d9d3e038  ./index.html