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decode_tx.html
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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Counterparty Decoder</title>
<script type="text/javascript" src="js/lib/sha256.js"></script>
<script>
let example_txs = [
'da3ed1efda82824cb24ea081ef2a8f532a7dd9cd1ebc5efa873498c3958c864e', //0 Classic send - 501 JPGOLD
'585f50f12288cd9044705483672fbbddb71dff8198b390b40ab3de30db0a88dd', //1 Classic send - 0.2 XCP
'd9bdf3b63b8283744762713aa72621822e9562e5823f44366edde017e00d3da8', //2 Enhanced send - 497.83516484 XCP
'11ae7493f5a8ef8691b391a95dd9e649afb21f449c5de67d4f6a02fce72d3645', //3 Enhanced send with memo
'b55c5745a6106314e41f68c8f4f96afcdf4f637ecbf2165cb454983e28843e3a', //4 DEX order
'1c10c283e7aa2baf8977fa6c15556f4934ac7238c65f47fa47cd836918d5546b', //5 DEX order with BTC
'be13ee06eee97c44c550c6297d6845f8963ef3461b4b9668207f65273d8aaf1b', //6 Btcpay (after order match)
'49896f6115956c2f9baddb9cf0991ba114d010bfffcc73f1d3ddb8e4267aa272', //7 Dispenser - JPJA
'8aad0368ee12b380d77437a5bfc9a9a19a4b6e96d0127e52b92d4bf44736cb44', //8 Dispenser - LOCHNESS - separate address
'e5e9f6a63ede5315994cf2d8a5f8fe760f1f37f6261e5fbb1263bed54114768a', //9 Issuance - OLGA
'34da6ecf10c66ed659054aa6c71900c807875cb57b96abea4cee4f7a831ed690', //10 Issuance - lock OLGA
'541e640fbb527c35e0ee32d724efa4a5506c4c52acfba1ebc3b45949780c08a8', //11 Issuance - transfer SALVATION ownership
'21c2cd5b369c2e7a350bf92ad43c31e5abb0aa85ccba11368b08f9f4abb8e0af', //12 Broadcast - jpja.net
'9d356c8c455e0be7381c6f35413d0b45c00947797f9df193c583337ac11e1c24', //13 Broadcast - Chinese
'627ae48d6b4cffb2ea734be1016dedef4cee3f8ffefaea5602dd58c696de6b74', //14 Broadcast - OLGA image
'756df60b4a97ac41912a03b95ea4b027ed9d9d07fce3fc0a2de8744e6fc5cd94', //15 Dividend - JPBULL to JPBEAR holders
'56afd17f57a2815e86b324465ac264d1dee2bcedd847361754ef49887d116ba0', //16 Sweep
'793566ef1644a14c2658aed6b3c2df41bc519941f121f9cff82825f48911e451', //17 Subasset issuance
'940b4fede6ca11446c60e4f89dea1c38b7169b7c8fd1805e85eedc5b448a4f0d', //18 Enhanced send to bech32 addr
'ca3ffd78d333969d333686563080a76830ce4df7c771e47e482317091ef069f4', //19 Enhanced send to multisig addr
'31a96a3bd86600b4af3c81bc960b15e89e506f855e93fbbda6f701963b1936ac', //20 Issuance with STAMP image
'549a5cc4bc189c800f0f9ea01068e8a7fd987c7dadb40c0b6a224d489ed070cc', //21 Issuance with FILE in p2wsh outputs (cip33)
'd36f1176ab64d9fc3898ca97822b9f900f11ce4da80ed3f474b75d7a1ebdc597' //22 Destruction
];
let msg_type = [];
msg_type[0] = 'Classic Send';
msg_type[2] = 'Enhanced Send';
msg_type[4] = 'Sweep';
msg_type[10] = 'DEX Order';
msg_type[11] = 'Btcpay';
msg_type[12] = 'Dispenser';
msg_type[20] = 'Issuance';
msg_type[21] = 'Issuance (Subasset)';
msg_type[22] = 'Issuance';
msg_type[23] = 'Issuance (Subasset)';
msg_type[30] = 'Broadcast';
msg_type[50] = 'Dividend';
msg_type[110] = 'Desctruction';
let standards = [ //prefix signaling a specific interpretation
'stamp', //classic cipc26/cip 27 or OLGA cip33
'file' //cip33
];
let p2wsh = []; //cip33
const queryString = window.location.search;
const urlParams = new URLSearchParams(queryString);
let network = urlParams.get('network');
if (network == 'testnet') network = 'test3';
if (network != 'test3') network = 'main';
let tx = urlParams.get('tx');
if (tx == 'random') tx = example_txs[Math.floor(Math.random() * example_txs.length)];
if (!isNaN(tx)) tx = example_txs[parseInt(tx)];
async function get(tx) {
let url = 'https://api.blockcypher.com/v1/btc/' + network + '/txs/' + tx + '?instart=0&outstart=0&limit=200';
let obj = await (await fetch(url)).json();
return obj;
}
let json;
if (typeof tx !== 'undefined' && tx.length == 64) get_json(tx);
function get_json(tx) {
(async () => {
json = await get(tx)
decode(json);
})()
}
function decode(json) {
json = JSON.parse(JSON.stringify(json));
let hash = json['hash'];
let block_height = json['block_height'];
let fees = json['fees'];
let size = json['size'];
let vsize = json['vsize'];
let confirmed = json['confirmed'];
let from_addr = json['addresses'][0];
let utxo = json['inputs'][0]['prev_hash'];
let first_send_sat = json['outputs'][0]['value'];
console.log('*** API DATA ***');
console.log(hash);
console.log(block_height);
console.log(from_addr);
console.log('utxo: ' + utxo);
let script_type = [];
let script = [];
let to_addr = [];
p2wsh = [];
for (const x of json['outputs']) {
let type = x['script_type'];
script_type.push(type);
if (type == 'pay-to-pubkey-hash') {
script.push('0');
to_addr.push(x['addresses'][0]);
} else if (type == 'pay-to-multi-pubkey-hash') {
script.push(x['script']);
to_addr.push('0');
} else if (type == 'null-data') {
script.push(x['data_hex']);
to_addr.push('0');
} else if (type == 'pay-to-witness-script-hash') {
script.push('0');
p2wsh.push([x['script'], x['value']]);
} else {
script.push('?');
to_addr.push('?');
}
console.log(script_type.at(-1));
console.log(script.at(-1));
console.log(to_addr.at(-1));
}
//DECODE TX
let recipient = '0';
let cp_msg = '';
if (script_type[0] == 'pay-to-pubkey-hash') {
//possibly classic send, asset transfer (issuance) or btc_pay.
//these always send some btc dust to recipent at output 0.
recipient = to_addr[0];
}
let encoding = '';
for (let i = 0; i < script.length; i++) {
if (script_type[i] == 'null-data') {
encoding = 'op_return';
let raw = script[i];
raw = xcp_rc4(utxo, raw);
if (raw.substring(0, 16) == '434e545250525459') {
//raw = raw.substring(16);
} else {
raw = '';
}
cp_msg += raw;
console.log('opreturn ' + cp_msg);
}
if (script_type[i] == 'pay-to-multi-pubkey-hash' && script[i].length == 142) {
encoding = 'multisig (old type, not rc4 encoded)';
let len = script[i].substring(72, 74);
len = parseInt(hexToDec(len));
let raw = script[i].substring(74, 74+(len*2));
if (raw.substring(0, 16) == '434e545250525459' || cp_msg.substring(0, 16) == '434e545250525459') {
cp_msg += raw;
}
console.log('old msig ' + len + ' ' + cp_msg);
}
if (script_type[i] == 'pay-to-multi-pubkey-hash' && script[i].length == 210) {
encoding = 'multisig';
let raw = script[i].substring(6, 68) + script[i].substring(74, 136);
raw = xcp_rc4(utxo, raw);
let len = raw.substring(0, 2);
len = parseInt(hexToDec(len));
raw = raw.substring(2, 2+(len*2));
if (raw.substring(0, 16) == '434e545250525459' && cp_msg.substring(0, 16) == '434e545250525459') {
raw = raw.substring(16);
} else if (raw.substring(0, 16) == '434e545250525459') {
//i.e. first msg, keep prefix
} else {
raw = '';
}
cp_msg += raw;
console.log('msig ' + len + ' ' + cp_msg);
}
}
//WRITE TX DATA
let out = '';
out += wl('BITCOIN DATA', '');
out += wl('Tx ID', hash);
out += wl('Address', from_addr);
out += wl('Timestamp', confirmed);
out += wl('Size', size);
out += wl('Vsize', vsize);
out += wl('Fee (sat)', fees);
out += wl('Fee (btc)', (fees/100000000).toFixed(8));
out += wl(' ', '');
out += wl('COUNTERPARTY DATA', '');
if (cp_msg.substring(0, 16) != '434e545250525459') {
out += wl('No Counterparty data found!', '');
document.getElementById("output").innerHTML = out;
output2(hash);
return;
}
//RAW CNTRPRTY DATA
let raw_ascii = hex2aq(cp_msg);
console.log(cp_msg);
console.log(raw_ascii);
out += wl('Encoding', encoding);
out += wl('Raw (hex)', cp_msg);
out += wl('Raw (ascii)', raw_ascii);
//GENERAL PREFIX
let prefix_hex = cp_msg.substring(0,16);
let prefix = hex2a(prefix_hex);
out += wl('Prefix (hex)', prefix_hex);
out += wl('Prefix', prefix);
//DISSECT DATA
cp_msg = cp_msg.substring(16);
let id_hex = cp_msg.substring(0,2);
if (id_hex == '00') {
id_hex = cp_msg.substring(0,8);
cp_msg = cp_msg.substring(8);
} else {
cp_msg = cp_msg.substring(2);
}
let id = parseInt(id_hex, 16);
out += wl('Type (hex)', id_hex);
out += wl('Type (int)', id);
out += wl('Type', msg_type[id]);
if (id == 0) { //Classic Send
let asset_hex = cp_msg.substring(0,16);
let asset = parseInt(asset_hex, 16);
cp_msg = cp_msg.substring(16);
let q_hex = cp_msg.substring(0,16);
let q = parseInt(q_hex, 16);
out += wl('Recipient', recipient);
out += wl('Dust (sat)', first_send_sat);
out += wl('Dust (btc)', (first_send_sat/100000000).toFixed(8));
out += wl('Asset (hex)', asset_hex);
out += wl('Asset (int)', asset);
out += wl('Asset', asset_name(asset));
out += wl('Amount (hex)', q_hex);
out += wl('Amount (sat)', q);
}
if (id == 2) { //Enhanced Send
let asset_hex = cp_msg.substring(0,16);
let asset = parseInt(asset_hex, 16);
cp_msg = cp_msg.substring(16);
let q_hex = cp_msg.substring(0,16);
let q = parseInt(q_hex, 16);
cp_msg = cp_msg.substring(16);
let recipient_hex = cp_msg.substring(0,42);
let recipient = hex_to_address(recipient_hex);
cp_msg = cp_msg.substring(42);
let memo_hex = cp_msg;
let memo = hex2a(memo_hex);
out += wl('Recipient (hex)', recipient_hex);
out += wl('Recipient', recipient);
out += wl('Asset (hex)', asset_hex);
out += wl('Asset (int)', asset);
out += wl('Asset', asset_name(asset));
out += wl('Amount (hex)', q_hex);
out += wl('Amount (sat)', q);
out += wl('Memo (hex)', memo_hex);
out += wl('Memo (text)', memo);
}
if (id == 4) { //Sweep
let recipient_hex = cp_msg.substring(0,42);
let recipient = hex_to_address(recipient_hex);
cp_msg = cp_msg.substring(42);
let flag_hex = cp_msg.substring(0,2);
let flag = parseInt(flag_hex, 16);
cp_msg = cp_msg.substring(2);
let memo_hex = cp_msg;
let memo = hex2a(memo_hex);
out += wl('Recipient (hex)', recipient_hex);
out += wl('Recipient', recipient);
out += wl('Flag (hex)', flag_hex);
out += wl('Flag (int)', flag);
out += wl('Memo (hex)', memo_hex);
out += wl('Memo (text)', memo);
}
if (id == 10) { //DEX Order
let give_asset_hex = cp_msg.substring(0,16);
let give_asset = parseInt(give_asset_hex, 16);
cp_msg = cp_msg.substring(16);
let give_q_hex = cp_msg.substring(0,16);
let give_q = parseInt(give_q_hex, 16);
cp_msg = cp_msg.substring(16);
let get_asset_hex = cp_msg.substring(0,16);
let get_asset = parseInt(get_asset_hex, 16);
cp_msg = cp_msg.substring(16);
let get_q_hex = cp_msg.substring(0,16);
let get_q = parseInt(get_q_hex, 16);
cp_msg = cp_msg.substring(16);
let exp_hex = cp_msg.substring(0,4);
let exp = parseInt(exp_hex, 16);
out += wl('Give Asset (hex)', give_asset_hex);
out += wl('Give Asset (int)', give_asset);
out += wl('Give Asset', asset_name(give_asset));
out += wl('Give Amount (hex)', give_q_hex);
out += wl('Give Amount (sat)', give_q);
out += wl('Get Asset (hex)', get_asset_hex);
out += wl('Get Asset (int)', get_asset);
out += wl('Get Asset', asset_name(get_asset));
out += wl('Get Amount (hex)', get_q_hex);
out += wl('Get Amount (sat)', get_q);
out += wl('Expiration (hex)', exp_hex);
out += wl('Expiration (int)', exp);
}
if (id == 11) { //Btcpay
let order_0 = cp_msg.substring(0,64);
cp_msg = cp_msg.substring(64);
let order_1 = cp_msg.substring(0,64);
out += wl('Order 0', order_0);
out += wl('Order 1', order_1);
out += wl('Pay To', recipient);
out += wl('Pay (sat)', first_send_sat);
out += wl('Pay (btc)', (first_send_sat/100000000).toFixed(8));
}
if (id == 12) { //Dispenser
let asset_hex = cp_msg.substring(0,16);
let asset = parseInt(asset_hex, 16);
cp_msg = cp_msg.substring(16);
let give_q_hex = cp_msg.substring(0,16);
let give_q = parseInt(give_q_hex, 16);
cp_msg = cp_msg.substring(16);
let esc_q_hex = cp_msg.substring(0,16);
let esc_q = parseInt(esc_q_hex, 16);
cp_msg = cp_msg.substring(16);
let btc_q_hex = cp_msg.substring(0,16);
let btc_q = parseInt(btc_q_hex, 16);
cp_msg = cp_msg.substring(16);
let status_hex = cp_msg.substring(0,2);
let status = parseInt(status_hex, 16);
cp_msg = cp_msg.substring(2);
let disp_addr_hex = cp_msg;
let disp_addr = hex_to_address(disp_addr_hex);
out += wl('Asset (hex)', asset_hex);
out += wl('Asset (int)', asset);
out += wl('Asset', asset_name(asset));
out += wl('Give Amount (hex)', give_q_hex);
out += wl('Give Amount (sat)', give_q);
out += wl('Escr. Amount (hex)', esc_q_hex);
out += wl('Escr. Amount (sat)', esc_q);
out += wl('BTC Amount (hex)', btc_q_hex);
out += wl('BTC Amount (sat)', btc_q);
out += wl('BTC Amount', (btc_q/100000000).toFixed(8));
out += wl('Status (hex)', status_hex);
out += wl('Status (int)', status);
out += wl('Dis. Address (hex)', disp_addr_hex);
out += wl('Dis. Address', disp_addr);
}
if (id == 20 && block_height < 753500) { //Issuance, pre change 2022
let asset_hex = cp_msg.substring(0,16);
let asset = BigInt('0x'+asset_hex).toString(10);
cp_msg = cp_msg.substring(16);
let q_hex = cp_msg.substring(0,16);
let q = parseInt(q_hex, 16);
cp_msg = cp_msg.substring(16);
let div_hex = cp_msg.substring(0,2);
let div = parseInt(div_hex, 16);
cp_msg = cp_msg.substring(2);
let call_hex = cp_msg.substring(0,2);
let call = parseInt(call_hex, 16);
cp_msg = cp_msg.substring(2);
let call_date_hex = cp_msg.substring(0,8);
let call_date = parseInt(call_date_hex, 16);
cp_msg = cp_msg.substring(8);
let call_price_hex = cp_msg.substring(0,8);
let call_price = parseInt(call_price_hex, 16);
cp_msg = cp_msg.substring(8);
let len_hex = cp_msg.substring(0,2);;
let len = parseInt(len_hex, 16);
cp_msg = cp_msg.substring(2);
let descr_hex = cp_msg;
let descr = hex2a(descr_hex);
//descr = unescape(encodeURIComponent(descr));
descr = decodeURIComponent(escape(descr));
if (recipient != '0') {
out += wl('Transfer To', recipient);
out += wl('Dust (sat)', first_send_sat);
out += wl('Dust (btc)', (first_send_sat/100000000).toFixed(8));
}
out += wl('Asset (hex)', asset_hex);
out += wl('Asset (int)', asset);
out += wl('Asset', asset_name(asset));
out += wl('Issue Amount (hex)', q_hex);
out += wl('Issue Amount (sat)', q);
out += wl('Divisible (hex)', div_hex);
//out += wl('Divisible', div);
out += wl('Callable (hex)', call_hex);
//out += wl('Callable', call);
out += wl('Call Date (hex)', call_date_hex);
//out += wl('Call Date (int)', call_date);
out += wl('Call Price (hex)', call_price_hex);
//out += wl('Call Price (sat)', call_price);
out += wl('Descr Length (hex)', len_hex);
out += wl('Descr Length (int)', len);
out += wl('Description (hex)', descr_hex);
out += wl('Description', descr);
}
if (id == 21 && block_height < 753500) { //Issuance (Subasset), pre change 2022
let asset_hex = cp_msg.substring(0,16);
let asset = BigInt('0x'+asset_hex).toString(10);
cp_msg = cp_msg.substring(16);
let q_hex = cp_msg.substring(0,16);
let q = parseInt(q_hex, 16);
cp_msg = cp_msg.substring(16);
let div_hex = cp_msg.substring(0,2);
let div = parseInt(div_hex, 16);
cp_msg = cp_msg.substring(2);
let len_subasset_hex = cp_msg.substring(0,2);
let len_subasset = parseInt(len_subasset_hex, 16);
cp_msg = cp_msg.substring(2);
let subasset_hex = cp_msg.substring(0,len_subasset*2);
let subasset = hex_to_subasset(subasset_hex);
cp_msg = cp_msg.substring(len_subasset*2);
let descr_hex = cp_msg;
let descr = hex2a(descr_hex);
//descr = unescape(encodeURIComponent(descr));
descr = decodeURIComponent(escape(descr));
if (recipient != '0') {
out += wl('Transfer To', recipient);
out += wl('Dust (sat)', first_send_sat);
out += wl('Dust (btc)', (first_send_sat/100000000).toFixed(8));
}
out += wl('Asset (hex)', asset_hex);
out += wl('Asset (int)', asset);
out += wl('Asset', asset_name(asset));
out += wl('Issue Amount (hex)', q_hex);
out += wl('Issue Amount (sat)', q);
out += wl('Divisible (hex)', div_hex);
out += wl('Subasset len (hex)', len_subasset_hex);
//out += wl('Subasset len', len_subasset);
out += wl('Subasset (hex)', subasset_hex);
out += wl('Subasset', subasset);
out += wl('Description (hex)', descr_hex);
out += wl('Description', descr);
}
if ((id == 20 && block_height >= 753500) || (id == 22 & block_height >= 819300)) { //Issuance, post changes 2022 (9.60) and 2023 (9.61)
let asset_hex = cp_msg.substring(0,16);
let asset = BigInt('0x' + asset_hex).toString(10);
cp_msg = cp_msg.substring(16);
let q_hex = cp_msg.substring(0,16);
let q = parseInt(q_hex, 16);
cp_msg = cp_msg.substring(16);
let div_hex = cp_msg.substring(0,2);
let div = parseInt(div_hex, 16);
cp_msg = cp_msg.substring(2);
//remove call data, add lock and reset
let lock_hex = cp_msg.substring(0,2);
let lock = parseInt(lock_hex, 16);
cp_msg = cp_msg.substring(2);
let reset_hex = cp_msg.substring(0,2);
let reset = parseInt(reset_hex, 16);
cp_msg = cp_msg.substring(2);
//let len_hex = cp_msg.substring(0,2);;
//let len = parseInt(len_hex, 16);
//cp_msg = cp_msg.substring(2);
let descr_hex = cp_msg;
let descr = hex2a(descr_hex);
//descr = unescape(encodeURIComponent(descr));
descr = decodeURIComponent(escape(descr));
if (recipient != '0') {
out += wl('Transfer To', recipient);
out += wl('Dust (sat)', first_send_sat);
out += wl('Dust (btc)', (first_send_sat/100000000).toFixed(8));
}
out += wl('Asset (hex)', asset_hex);
out += wl('Asset (int)', asset);
out += wl('Asset', asset_name(asset));
out += wl('Issue Amount (hex)', q_hex);
out += wl('Issue Amount (sat)', q);
out += wl('Divisible (hex)', div_hex);
out += wl('Lock (hex)', lock_hex);
out += wl('Reset (hex)', reset_hex);
//out += wl('Descr Length (hex)', len_hex);
//out += wl('Descr Length (int)', len);
out += wl('Description (hex)', descr_hex);
out += wl('Description', descr);
console.log(descr.toLowerCase().split(':')[0]);
if (standards.includes(descr.toLowerCase().split(':')[0])) {
out += print_standard(descr);
}
}
if ((id == 21 && block_height >= 753500) || (id == 23 & block_height >= 819300)) { //Issuance (Subasset), post changes 2022 (9.60) and 2023 (9.61)
let asset_hex = cp_msg.substring(0,16);
let asset = BigInt('0x'+asset_hex).toString(10);
cp_msg = cp_msg.substring(16);
let q_hex = cp_msg.substring(0,16);
let q = parseInt(q_hex, 16);
cp_msg = cp_msg.substring(16);
let div_hex = cp_msg.substring(0,2);
let div = parseInt(div_hex, 16);
cp_msg = cp_msg.substring(2);
//remove call data, add lock and reset
let lock_hex = cp_msg.substring(0,2);
let lock = parseInt(lock_hex, 16);
cp_msg = cp_msg.substring(2);
let reset_hex = cp_msg.substring(0,2);
let reset = parseInt(reset_hex, 16);
cp_msg = cp_msg.substring(2);
let len_subasset_hex = cp_msg.substring(0,2);
let len_subasset = parseInt(len_subasset_hex, 16);
cp_msg = cp_msg.substring(2);
let subasset_hex = cp_msg.substring(0,len_subasset*2);
let subasset = hex_to_subasset(subasset_hex);
cp_msg = cp_msg.substring(len_subasset*2);
let descr_hex = cp_msg;
let descr = hex2a(descr_hex);
//descr = unescape(encodeURIComponent(descr));
descr = decodeURIComponent(escape(descr));
if (recipient != '0') {
out += wl('Transfer To', recipient);
out += wl('Dust (sat)', first_send_sat);
out += wl('Dust (btc)', (first_send_sat/100000000).toFixed(8));
}
out += wl('Asset (hex)', asset_hex);
out += wl('Asset (int)', asset);
out += wl('Asset', asset_name(asset));
out += wl('Issue Amount (hex)', q_hex);
out += wl('Issue Amount (sat)', q);
out += wl('Divisible (hex)', div_hex);
out += wl('Lock (hex)', lock_hex);
out += wl('Reset (hex)', reset_hex);
out += wl('Subasset len (hex)', len_subasset_hex);
//out += wl('Subasset len', len_subasset);
out += wl('Subasset (hex)', subasset_hex);
out += wl('Subasset', subasset);
out += wl('Description (hex)', descr_hex);
out += wl('Description', descr);
if (standards.includes(descr.toLowerCase().split(':')[0])) {
out += print_standard(descr);
}
}
if (id == 30) { //Broadcast
let ts_hex = cp_msg.substring(0,8);
let ts = parseInt(ts_hex, 16);
cp_msg = cp_msg.substring(8);
let value_hex = cp_msg.substring(0,16);
let value = parseInt(value_hex, 16);
cp_msg = cp_msg.substring(16);
let fee_hex = cp_msg.substring(0,8);
let fee = parseInt(fee_hex, 16);
cp_msg = cp_msg.substring(8);
//most broadcast texts begin with a length byte
// but not all do. I don't know why.
//assume first byte is length byte if it matches length.
// else it's the first text character
let chars_left = cp_msg.length;
let len_hex = cp_msg.substring(0,2);
let len = parseInt(len_hex, 16);
let len_byte = false;
if (len*2+2 == chars_left) {
len_byte = true;
cp_msg = cp_msg.substring(2);
}
let text_hex = cp_msg;
let text = hex2a(text_hex);
text = decodeURIComponent(escape(text.substring(0)));
out += wl('Timestamp (hex)', ts_hex);
out += wl('Timestamp (int)', ts);
out += wl('Timestamp', print_ts(ts));
out += wl('Value (hex)', value_hex);
out += wl('Fee (hex)', fee_hex);
out += wl('Fee (int)', fee);
if (len_byte) {
out += wl('Text Length (hex)', len_hex);
out += wl('Text Length (int)', len);
}
out += wl('Text (hex)', text_hex);
out += wl('Text', text);
if (standards.includes(text.toLowerCase().split(':')[0])) {
out += print_standard(text);
}
}
if (id == 50) { //Dividend
let div_q_hex = cp_msg.substring(0,16);
let div_q = parseInt(div_q_hex, 16);
cp_msg = cp_msg.substring(16);
let asset_hex = cp_msg.substring(0,16);
let asset = parseInt(asset_hex, 16);
cp_msg = cp_msg.substring(16);
let asset2_hex = cp_msg.substring(0,16);
let asset2 = parseInt(asset2_hex, 16);
cp_msg = cp_msg.substring(16);
out += wl('Div. Amount (hex)', div_q_hex);
out += wl('Div. Amount (sat)', div_q);
out += wl('Asset (hex)', asset_hex);
out += wl('Asset (int)', asset);
out += wl('Asset', asset_name(asset));
out += wl('Div. Asset (hex)', asset2_hex);
out += wl('Div. Asset (int)', asset2);
out += wl('Div. Asset', asset_name(asset2));
}
if (id == 110) { //Destruction
let asset_hex = cp_msg.substring(0,16);
let asset = parseInt(asset_hex, 16);
cp_msg = cp_msg.substring(16);
let q_hex = cp_msg.substring(0,16);
let q = parseInt(q_hex, 16);
cp_msg = cp_msg.substring(16);
let text_hex = cp_msg;
let text = hex2a(text_hex);
text = decodeURIComponent(escape(text.substring(0)));
out += wl('Asset (hex)', asset_hex);
out += wl('Asset (int)', asset);
out += wl('Asset', asset_name(asset));
out += wl('Destr Amount (hex)', q_hex);
out += wl('Destr Amount (sat)', q);
out += wl('Text (hex)', text_hex);
out += wl('Text', text);
}
document.getElementById("output").innerHTML = out;
output2(hash);
}
function output2(tx) {
let out = '<br><br>';
out += 'View on: ';
out += '<a href="https://xchain.io/tx/' + tx + '">Xchain</a> – ';
out += '<a href="https://xcp.dev/tx/' + tx + '">xcp.dev</a> – ';
out += '<a href="https://live.blockcypher.com/btc/tx/' + tx + '/">BlockCypher</a> – ';
out += '<a href="https://www.blockchain.com/btc/tx/' + tx + '">Blockchain.com</a> – ';
out += '<a href="https://blockstream.info/tx/' + tx + '">Blockstream</a>';
document.getElementById("output2").innerHTML = out;
}
function wl(title, info) {
return title.padEnd(18, ' ') + ' ' + chunk(info, '<br>'+''.padEnd(19,' '), 64) + '<br>';
}
function chunk(str, sep, n) {
str = String(str);
var ret = [];
var i;
var len;
for(i = 0, len = str.length; i < len; i += n) {
ret.push(str.substr(i, n))
}
return ret.join(sep);
};
function hex2a(hexx) {
var hex = hexx.toString();//force conversion
var str = '';
for (var i = 0; i < hex.length; i += 2)
str += String.fromCharCode(parseInt(hex.substr(i, 2), 16));
return str;
}
function hex2aq(hexx) {
var hex = hexx.toString();//force conversion
var str = '';
for (var i = 0; i < hex.length; i += 2) {
let int = parseInt(hex.substr(i, 2), 16);
if (int >= 32 && int <= 126) {
str += String.fromCharCode(int);
} else {
str += '?';
}
}
return str;
}
function xcp_rc4(key, datachunk) {
return bin2hex(rc4(hex2bin(key), hex2bin(datachunk)));
}
function hex2bin(hex) {
var bytes = [];
var str;
for (var i = 0; i < hex.length - 1; i += 2) {
var ch = parseInt(hex.substr(i, 2), 16);
bytes.push(ch);
}
str = String.fromCharCode.apply(String, bytes);
return str;
};
function bin2hex(s) {
// http://kevin.vanzonneveld.net
var i, l, o = "",
n;
s += "";
for (i = 0, l = s.length; i < l; i++) {
n = s.charCodeAt(i).toString(16);
o += n.length < 2 ? "0" + n : n;
}
return o;
};
function rc4(key, str) {
//https://gist.github.com/farhadi/2185197
var s = [], j = 0, x, res = '';
for (var i = 0; i < 256; i++) {
s[i] = i;
}
for (i = 0; i < 256; i++) {
j = (j + s[i] + key.charCodeAt(i % key.length)) % 256;
x = s[i];
s[i] = s[j];
s[j] = x;
}
i = 0;
j = 0;
for (var y = 0; y < str.length; y++) {
i = (i + 1) % 256;
j = (j + s[i]) % 256;
x = s[i];
s[i] = s[j];
s[j] = x;
res += String.fromCharCode(str.charCodeAt(y) ^ s[(s[i] + s[j]) % 256]);
}
return res;
}
function hexToDec(s) {
var i, j, digits = [0], carry;
for (i = 0; i < s.length; i += 1) {
carry = parseInt(s.charAt(i), 16);
for (j = 0; j < digits.length; j += 1) {
digits[j] = digits[j] * 16 + carry;
carry = digits[j] / 10 | 0;
digits[j] %= 10;
}
while (carry > 0) {
digits.push(carry % 10);
carry = carry / 10 | 0;
}
}
return digits.reverse().join('');
}
function asset_name(id) {
if (id == 0) return 'BTC';
if (id == 1) return 'XCP';
if (id >= 95428956661682177) return 'numerical or sub-asset';
if (id > 9007199254740991) return 'max int error'; //a few very long asset names. would need bigint
let b26_digits = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
let n = id;
let name = '';
do {
let mod = n % 26;
name = b26_digits[mod] + name;
n -= mod;
n /= 26;
} while (n > 0);
return name;
}
function print_ts(ts) {
//integer timestamp to ISO string
let d = new Date(ts*1000);
return d.toISOString();
}
function hex_to_address(hex) { //21 byte hex encoded in cntrprty message
let version_byte = hex.substring(0,2);
if (version_byte == '00' || version_byte == '05') {
return hex_to_base58addr(hex);
}
if (version_byte == '80') {
return hex_to_bech32addr(hex);
}
return 'cannot decode address';
}
function hex_to_base58addr(hex) {
const ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz';
const base = BigInt(58);
let checksum = sha256(hex2a(hex));
checksum = sha256(hex2a(checksum));
checksum = checksum.substring(0,8);
hex += checksum
let decimal = BigInt('0x' + hex);
let output = '';
while (decimal > 0) {
let rem = decimal % base;
decimal = BigInt(decimal / base);
output = ALPHABET[Number(rem)] + output;
}
//Leading 00's must be converted to 1's
let numLeadingZeros = Math.floor(hex.match(/^0+/)[0].length / 2);
for (let i = 0; i < numLeadingZeros; i++) {
output = "1" + output;
}
return output;
}
function hex_to_bech32addr(hex) {
const version = 0;
const hrp = 'bc';
//remove version byte ('80') from hex string
hex = hex.substring(2);
//the rest follows step 3 on https://en.bitcoin.it/wiki/Bech32
// convert hex string to binary format
const binaryString = hex.match(/.{1,2}/g).map(byte => parseInt(byte, 16).toString(2).padStart(8, '0')).join('');
//Split binary string into 5-bit chunks and convert to integer array
const intArray = binaryString.match(/.{1,5}/g).map(chunk => parseInt(chunk, 2));
//Add the witness version byte in front
intArray.unshift(version);
//Calculate checksum
let chk = bech32_checksum(hrp, intArray);
//Append checksum
intArray.push(...chk);
//Map to bech32 charset
const charset = "qpzry9x8gf2tvdw0s3jn54khce6mua7l";
let addr = hrp + '1';
for (let i = 0; i < intArray.length; i++) {
addr += charset.charAt(intArray[i]);
}
return addr;
}
//Calculate bech32 checksum
//Copied from https://github.com/sipa/bech32/blob/master/ref/javascript/bech32.js
//Modified to assume BECH32 encoding (not BECH32M)
function bech32_checksum(hrp, data) {
var values = hrpExpand(hrp).concat(data).concat([0, 0, 0, 0, 0, 0]);
var mod = polymod(values) ^ 1;
var ret = [];
for (var p = 0; p < 6; ++p) {
ret.push((mod >> 5 * (5 - p)) & 31);
}
return ret;
}
function polymod(values) {
const GENERATOR = [0x3b6a57b2, 0x26508e6d, 0x1ea119fa, 0x3d4233dd, 0x2a1462b3];
var chk = 1;
for (var p = 0; p < values.length; ++p) {
var top = chk >> 25;
chk = (chk & 0x1ffffff) << 5 ^ values[p];
for (var i = 0; i < 5; ++i) {
if ((top >> i) & 1) {
chk ^= GENERATOR[i];
}
}
}
return chk;
}
function hrpExpand(hrp) {
var ret = [];
var p;
for (p = 0; p < hrp.length; ++p) {
ret.push(hrp.charCodeAt(p) >> 5);
}
ret.push(0);
for (p = 0; p < hrp.length; ++p) {
ret.push(hrp.charCodeAt(p) & 31);
}
return ret;
}
function hex_to_subasset(hex) {
const SUBASSET_DIGITS = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_@!'
let integer = BigInt('0x' + hex)
let ret = ''
while (integer != 0n) {
ret = SUBASSET_DIGITS[(integer % 68n) - 1n] + ret
integer = integer / 68n
}
return ret
}
//Standards
function print_standard(descr) {
let prefix = descr.toLowerCase().split(':')[0];
let out = ''
if (prefix == 'stamp') {
//test if classic (base64) or OLGA (p2wsh)
if (/^[a-zA-Z0-9+\/=]+$/.test(descr.substr(descr.length - 45))) { //Base64 Stamp
out += wl('Standard', 'STAMP (Base64)');
//Display image if gif, png or jpeg
let image = descr.slice(6);
image = image.split(';')[0]; //cip26 allows several images. TODO: update to show all (if this ever is used)
/*image may be encoded different ways
stamp:iVBORw0KGgoAAAANSU...
stamp:image/png;iVBORw0KGgoAAAANSU...
stamp:data:image/png;base64, iVBORw0KGgoAAAANSU...
In general, if starts with 'R0lGOD' assume gif https://stackoverflow.com/questions/57976898/how-to-get-mime-type-from-base-64-string
'iVBORw' assume png
'/9j/' assume jpeg
*/
image = image.split(';').pop(); // remove image/xxx; part if present
image = image.split(',').pop(); // remove base64, part if present
image = image.trim();
if (image.slice(0,6) == 'R0lGOD') out += ' <img src="data:image/gif;base64, ' + image + '" />';
if (image.slice(0,6) == 'iVBORw') out += ' <img src="data:image/png;base64, ' + image + '" />';
if (image.slice(0,4) == '/9j/') out += ' <img src="data:image/jpeg;base64, ' + image + '" />';
} else { //OLGA Stamp
out += wl('Standard', 'STAMP (OLGA)');
//let file_type = descr.split('.').pop();
//file_type = file_type.toLowerCase();
let hex = '';
let dust = 0;
for (let i = 0; i < p2wsh.length; i++) {
hex += p2wsh[i][0].slice(4);
dust += p2wsh[i][1];
}
let file_size_hex = hex.slice(0,4);
let file_size = parseInt(file_size_hex, 16);
let file = hex.slice(4,4+file_size*2);
/*
//Display image if gif, png, jpeg or svg
if (file_type === 'svg') {
file_type = 'svg+xml';
}
if (file_type == 'gif' || file_type == 'png' || file_type == 'jpg' || file_type == 'jpeg' || file_type == 'svg+xml') {
let base64 = btoa(file.match(/\w{2}/g).map(function(y){return String.fromCharCode(parseInt(y,16));}).join(''));
out += ' <img style="image-rendering:pixelated" src="data:image/' + file_type + ';base64, ' + base64 + '" /><br>';
}
*/
let base64 = btoa(file.match(/\w{2}/g).map(function(y){return String.fromCharCode(parseInt(y,16));}).join(''));
let file_type = '';
if (base64.slice(0,6) == 'R0lGOD') file_type = 'gif';
if (base64.slice(0,6) == 'iVBORw') file_type = 'png';
if (base64.slice(0,4) == '/9j/') file_type = 'jpeg';
if (base64.slice(0,5) == 'PHN2Z') file_type = 'svg+xml'; //"<svg" -> PHN2Z
if (base64.slice(0,5) == 'PD94b') file_type = 'svg+xml'; //"<?xml" -> PD94b
if (file_type != '') out += ' <img style="image-rendering:pixelated" src="data:image/' + file_type + ';base64, ' + base64 + '" /><br>';
out += wl('File size (hex)', file_size_hex);
out += wl('File size (int)', file_size);
out += wl('Burned (sat)', dust);
out += wl('Burned (btc)', (dust/100000000).toFixed(8));
out += wl('Raw file', file);
}
}
if (prefix == 'file') {
out += wl('Standard', 'CIP33: File in P2WSH outputs');
let file_type = descr.split('.').pop();
file_type = file_type.toLowerCase();
let hex = '';
let dust = 0;
for (let i = 0; i < p2wsh.length; i++) {
hex += p2wsh[i][0].slice(4);
dust += p2wsh[i][1];
}
let file_size_hex = hex.slice(0,4);
let file_size = parseInt(file_size_hex, 16);
let file = hex.slice(4,4+file_size*2);
//Display image if gif, png or jpeg
if (file_type === 'svg') {
file_type = 'svg+xml';
}
if (file_type == 'gif' || file_type == 'png' || file_type == 'jpg' || file_type == 'jpeg' || file_type == 'svg+xml') {
let base64 = btoa(file.match(/\w{2}/g).map(function(y){return String.fromCharCode(parseInt(y,16));}).join(''));
out += ' <img style="image-rendering:pixelated" src="data:image/' + file_type + ';base64, ' + base64 + '" /><br>';
}
//Display text file
if (file_type == 'txt') {
let text = hex2a(file);
text = decodeURIComponent(escape(text));
out += wl('File content', ' ');
out += '<div style="background-color: #feff9c;">' + text + '</div><br>';
}
out += wl('File size (hex)', file_size_hex);
out += wl('File size (int)', file_size);
out += wl('Burned (sat)', dust);
out += wl('Burned (btc)', (dust/100000000).toFixed(8));
out += wl('Raw file', file);
}
return out;
}
</script>