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list of special blocks is now dynamic via ajax

develop
MEUNIER Thibaud 6 lat temu
rodzic
61930c1277
commit
a4f572f962
6 zmienionych plików z 255 dodań i 409 usunięć
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  1. +1
    -1
      articles/20170425/header.html
  2. +25
    -0
      data/getKnownBlocksList.php
  3. +2
    -2
      explorer.php
  4. +0
    -106
      images/20170200-content.html
  5. +3
    -3
      images/block_image.php
  6. +224
    -297
      js/blockexplorer.js

+ 1
- 1
articles/20170425/header.html Wyświetl plik

@ -1,7 +1,7 @@
<div class="container-fluid bg-grey">
<div class="row">
<div class="col-sm-4">
<br><img id="logo_ARTICLE" src="images/block_image.php?methode=spline" width="100%; height: auto"></img>
<br><img id="logo_ARTICLE" src="images/block_image.php?methode=spline_2" width="100%; height: auto"></img>
<br><p>ARTICLE</p>
</div>
<div class="col-sm-8">

+ 25
- 0
data/getKnownBlocksList.php Wyświetl plik

@ -0,0 +1,25 @@
<?php
// ---
// --- La config globale
// ---
chdir('/opt/TOPISTO/apps');
require_once '/opt/TOPISTO/apps/global/inc/config.php';
// ---
// --- External dependances
// ---
require TOPISTO_PATH.'/ressources/vendor/autoload.php';
// ---
// --- Internal dependances
// ---
require_once APP_PATH.'/blockchain/inc/block.php';
header('Content-Type: application/json');
echo blockchain::getSpecialBlocksJSON();
die();
?>

+ 2
- 2
explorer.php Wyświetl plik

@ -53,7 +53,7 @@
var pos = $(this).offset().top;
var winTop = $(window).scrollTop();
if (pos < winTop + 600) {
ajouterPreviousBlock();
blockchainExplorer.ajouterPreviousBlock();
$(this).addClass("slide");
}
});
@ -64,7 +64,7 @@
{
cur_height = [];
cur_methode=la_methode;
return initBlockExplorer(null);
return blockchainExplorer.init();
}
</script>

+ 0
- 106
images/20170200-content.html Wyświetl plik

@ -1,106 +0,0 @@
<div class="container-fluid bg-grey">
<div class="row">
<div class="col-sm-8">
<h2>A digital currency</h2>
<p>
Use cryptography.<br>
No "central bank".<br>
P2P network.<br>
</p>
</div>
<div class="col-sm-4 align-middle">
<img src="images/bitcoin.jpg" width="100%; height: auto"></img>
</div>
</div>
</div>
<div class="container-fluid">
<div class="row">
<div class="col-sm-4 align-middle">
<img src="images/wallet.png" height="300px"></img>
</div>
<div class="col-sm-8">
<h2>WALLET</h2>
<p>
Use cryptography.<br>
No "central bank".<br>
P2P network.<br>
</p>
</div>
</div>
</div>
<div class="container-fluid bg-grey">
<div class="row">
<div class="col-sm-8">
<h2>Transaction</h2>
<p>
When Bob is sending 42 <span class="glyphicon glyphicon-bitcoin"></span> to Alice, the bitcoin protocol is creating a transaction.<br>
A transaction is the balance between his Inputs and his Outputs.
<ul>
<li>First the network needs to be sure that Bob has got enough <span class="glyphicon glyphicon-bitcoin"></span> in his wallet.<br>So Bob will include a list of transactions that he has received before.<br>This is the inputs of the transactions.<br>For example, previous transaction's amount are 10, 25 and another 10, so total inputs are 45 <span class="glyphicon glyphicon-bitcoin"></span></li>
<li>As the input's sum is superior to the amount of the transaction, an ouput is added.<br>This output is the change to Bob.<br>In the example, this 3 <span class="glyphicon glyphicon-bitcoin"></span></li>
<li>Fees are took by the network to process the transaction.<br>Let say it will take 0.5<span class="glyphicon glyphicon-bitcoin"></span>.<br>This is another ouput</li>
<li>So Alice will get only a part of the transaction's amount.<br>this the last output, 41.5<span class="glyphicon glyphicon-bitcoin"></span></li>
</ul>
So the transaction is a made with :
<ul>
<li>Inputs : a list of previous transactions that bob has received</li>
<li>Outputs : a list of amounts to send to Alice, Bob, and fees</li>
<li>A timestamp</li>
</ul>
Then the wallet will broadcast the transaction on the network.<br>
It will be sent to the area called "mempool".<br>
Nodes of the network will validate the transaction by verfying the Inputs and the Ouputs.<br>
A hash of the transaction is computed.<br>
So the transaction is sealed.
</p>
</div>
<div class="col-sm-4 align-middle">
<img src="images/bob_to_alice.gif" width="100%; height: auto"></img>
</div>
</div>
</div>
<div class="container-fluid">
<div class="row">
<div class="col-sm-4">
<img src="images/tx2block.gif" width="100%; height: auto"></img>
</div>
<div class="col-sm-8">
<h2>Block</h2>
<p>
Then the bitcoin protocol is grouping validated transactions in blocks.<br>
So a block is an array of transactions.<br>
A block is made with :
<ul>
<li>An array of transactions.<br>
That's what my script is drawing.<br>
Running the transactions array, it is computing the sum of each outputs of each transaction.<br>
Then, it draws a rectangle for each sum.<br>
</li>
<li>A "proof of work".<br>The miner is computing a special hash that depends on the array of transaction and that will answer to a constraint.<br>This hash is very difficult to compute. In fact it is not really computed, the miner must test every value until he find the solution.<br></li>
<li>That why the network will give him a reward.<br>This is a special transaction that has no inputs.</li>
</ul>
</p>
</div>
</div>
</div>
<div class="container-fluid bg-grey">
<div class="row">
<div class="col-sm-8">
<h2>Blockchain</h2>
<p>
Each block has a hash and a reference to the ihash of the previous block.<br>
So blocks are chained together.<br>
</p>
</div>
<div class="col-sm-4">
<img src="/images/loading.gif" width="100%; height: auto"></img>
</div>
</div>
</div>

+ 3
- 3
images/block_image.php Wyświetl plik

@ -33,13 +33,13 @@ if (isset($_REQUEST['methode'])) $methode = $_REQUEST['methode'];
if (isset($_REQUEST['mode'])) $mode = intval($_REQUEST['mode']);
$img = null;
$str_mode = '';
if ($mode != 9999) $str_mode = '-'.$mode;
// ---
// --- Le cas général : on trouve le fichier image demandé
// ---
$imagefilename = DATA_PATH.'/'.$methode.'/'.$block_hash;
if ($mode != 9999) $imagefilename .= '-'.$mode;
$imagefilename .= '.png';
$imagefilename = DATA_PATH.'/'.$methode.'/'.$block_hash.$str_mode.'.png';
if (file_exists($imagefilename)) $img = imagecreatefrompng($imagefilename);
// ---

+ 224
- 297
js/blockexplorer.js Wyświetl plik

@ -1,340 +1,267 @@
// Init array
var liste_blocks = [
{
name : 'WHALE201810',
hash : '0000000000000000000f9f2dadfb8f312572183272802cbfcc4ff95b4ee6777d',
height : 545911
},
{
name : 'BLOCK21E800',
hash : '00000000000000000021e800c1e8df51b22c1588e5a624bea17e9faa34b2dc4a',
height : 528249
},
{
name : 'HURRICANE_1',
hash : '0000000000000000000fe6d521a187a5523d5cef6f6c178923ff82ffe5a0f372',
height : 506734
},
{
name : 'SEGWIT',
hash : '000000000000000000cbeff0b533f8e1189cf09dfbebf57a8ebe349362811b80',
height : 481823
},
{
name : 'SEGWIT_LOCK',
hash : '0000000000000000012e6060980c6475a9a8e62a1bf44b76c5d51f707d54522c',
height : 479808
},
{
name : 'BCC',
hash : '00000000000000000019f112ec0a9982926f1258cdcc558dd7c3b7e5dc7fa148',
height : 478559
},
{
name : 'BIP_91_LOCK',
hash : '0000000000000000015411ca4b35f7b48ecab015b14de5627b647e262ba0ec40',
height : 477120
},
{
name : 'HALVING_2',
hash : '000000000000000002cce816c0ab2c5c269cb081896b7dcb34b8422d6b74ffa1',
height : 420000
},
{
name : 'WHALE201311',
hash : '0000000000000001bc7156dd1183c87859b326affa3a5cdd157e809537f0b284',
height : 270953
},
{
name : 'HALVING_1',
hash : '000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e',
height : 210000
},
{
name : 'PIZZA',
hash : '00000000006de085dadb3ec413ef074022fe781121b467e98960280dd246bb00',
height : 57035
},
{
name : 'TOPISTO',
hash : '000000000a73e64735a2b75c97ea674950a9018da1420d01328a918c9ff9852c',
height : 5637
},
{
name : 'LEET',
hash : '000000008bf44a528a09d203203a6a97c165cf53a92ecc27aed0b49b86a19564',
height : 1337
},
{
name : 'LUCIFER',
hash : '00000000fc5b3c76f27f810ee775e480ae7fd604fd196b2d8da4257fcd39f4f9',
height : 666
},
{
name : 'THE_ANSWER',
hash : '00000000314e90489514c787d615cea50003af2023796ccdd085b6bcc1fa28f5',
height : 42
},
{
name : 'GENESIS',
hash : '000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f',
height : 0
}
];
var flag_nav = true;
var classes = ['bg-grey-even','bg-grey-odd'];
var cur_class = 0;
var cur_height = [];
var cur_methode = 'hasard';
function precisionRound(number) {
blockchainExplorer = function(){
// Init array
var liste_blocks = null;
var flag_nav = true;
var classes = ['bg-grey-even','bg-grey-odd'];
var cur_class = 0;
var cur_height = [];
var cur_methode = 'hasard';
var isInitSelector = false;
function precisionRound(number) {
var precision = 4;
var factor = Math.pow(10, precision);
return Math.round((number/100000000) * factor) / factor;
}
}
function getblockNameFromHash(hash)
{
var retour = '';
liste_blocks.forEach(function(item){
if (hash == item.hash) retour = item.name;
});
return retour;
}
function getblocHashFromName(name)
{
var retour = '';
liste_blocks.forEach(function(item){
if (name == item.name) retour = item.hash;
});
return retour;
}
function getblockNameFromHash(hash)
{
var retour = '';
liste_blocks.forEach(function(item){
if (hash == item.hash) retour = item.name;
});
return retour;
}
function getblocHashFromName(name)
{
var retour = '';
liste_blocks.forEach(function(item){
if (name == item.name) retour = item.hash;
});
return retour;
}
function addInfoForBlock(block)
{
var height = '300px';
var contenu = '';
var downloadingImage = new Image();
function addInfoForBlock(block)
{
var height = '300px';
var contenu = '';
var downloadingImage = new Image();
cur_height.push(block.height);
cur_class = 1 - cur_class;
cur_height.push(block.height);
cur_class = 1 - cur_class;
blockName = getblockNameFromHash(block.hash);
if (blockName != '') blockName = ' ( '+blockName+' )';
blockName = getblockNameFromHash(block.hash);
if (blockName != '') blockName = ' ( '+blockName+' )';
contenu += ' <h2> <span style="font-size:12px">block</span> '+block.height+blockName+'</h2>';
contenu += ' <table width="100%">';
//contenu += ' <tr><td>hash</td><td align="right"><b>'+block.hash+'</b></td></tr>';
//contenu += ' <tr><td>index</td><td align="right"><b>'+block.block_index+'</b></td></tr>';
contenu += ' <tr><td>timestamp</td><td align="right"><b>'+block.time+'</b></td></tr>';
contenu += ' <tr><td>nonce</td><td align="right"><b>'+block.nonce+'</b></td></tr>';
contenu += ' <tr><td>nb tx</td><td align="right"><b>'+block.n_tx+'</b></td></tr>';
contenu += ' <tr><td>outputs</td><td align="right"><b>'+precisionRound(block.topisto_outputs).toFixed(4)+'</b></td></tr>';
contenu += ' <tr><td>inputs</td><td align="right"><b>'+precisionRound(block.topisto_inputs).toFixed(4)+'</b></td></tr>';
contenu += ' <tr><td>fees</td><td align="right"><b>'+precisionRound(block.topisto_fees).toFixed(4)+'</b></td></tr>';
contenu += ' <tr><td>reward</td><td align="right"><b>'+precisionRound(block.topisto_reward).toFixed(4)+'</b></td></tr>';
contenu += ' </table>';
$('#info_'+block.height).html(contenu);
downloadingImage.onload = function(){
$('#img_'+block.height).attr('src', this.src);
//$('#img_'+block.height).attr('height', height);
//$('#img_'+block.height).attr('width','auto');
flag_nav = true;
};
downloadingImage.src = 'images/block_image.php?methode='+cur_methode+'&hash='+block.hash;
return true;
}
function addDivForBlock(block_height)
{
var contenu = '';
contenu += '<div id="block_'+block_height+'" class="container-fluid '+classes[cur_class]+'">';
contenu += ' <div class="row">';
contenu += ' <div class="col-sm-8" id="info_'+block_height+'">';
contenu += ' <h2>COMPUTING ...</h2>';
contenu += ' </div>';
contenu += ' <div class="col-sm-4 text-right">';
contenu += ' <div width="100%" class="text-center">';
contenu += ' <img id="img_'+block_height+'" src="images/loading.gif" class="img-responsive"></img>';
contenu += ' </div>';
contenu += ' </div>';
contenu += ' </div>';
contenu += '</div>';
$('#blockchain').append(contenu);
return true;
}
function addDivForVoid()
contenu += ' <h2> <span style="font-size:12px">block</span> '+block.height+blockName+'</h2>';
contenu += ' <table width="100%">';
//contenu += ' <tr><td>hash</td><td align="right"><b>'+block.hash+'</b></td></tr>';
//contenu += ' <tr><td>index</td><td align="right"><b>'+block.block_index+'</b></td></tr>';
contenu += ' <tr><td>timestamp</td><td align="right"><b>'+block.time+'</b></td></tr>';
contenu += ' <tr><td>nonce</td><td align="right"><b>'+block.nonce+'</b></td></tr>';
contenu += ' <tr><td>nb tx</td><td align="right"><b>'+block.n_tx+'</b></td></tr>';
contenu += ' <tr><td>outputs</td><td align="right"><b>'+precisionRound(block.topisto_outputs).toFixed(4)+'</b></td></tr>';
contenu += ' <tr><td>inputs</td><td align="right"><b>'+precisionRound(block.topisto_inputs).toFixed(4)+'</b></td></tr>';
contenu += ' <tr><td>fees</td><td align="right"><b>'+precisionRound(block.topisto_fees).toFixed(4)+'</b></td></tr>';
contenu += ' <tr><td>reward</td><td align="right"><b>'+precisionRound(block.topisto_reward).toFixed(4)+'</b></td></tr>';
contenu += ' </table>';
$('#info_'+block.height).html(contenu);
downloadingImage.onload = function(){
$('#img_'+block.height).attr('src', this.src);
//$('#img_'+block.height).attr('height', height);
//$('#img_'+block.height).attr('width','auto');
flag_nav = true;
};
downloadingImage.src = 'images/block_image.php?methode='+cur_methode+'&hash='+block.hash;
return true;
}
function addDivForBlock(block_height)
{
var contenu = '';
contenu += '<div id="block_'+block_height+'" class="container-fluid '+classes[cur_class]+'">';
contenu += ' <div class="row">';
contenu += ' <div class="col-sm-8" id="info_'+block_height+'">';
contenu += ' <h2>COMPUTING ...</h2>';
contenu += ' </div>';
contenu += ' <div class="col-sm-4 text-right">';
contenu += ' <div width="100%" class="text-center">';
contenu += ' <img id="img_'+block_height+'" src="images/loading.gif" class="img-responsive"></img>';
contenu += ' </div>';
contenu += ' </div>';
contenu += ' </div>';
contenu += '</div>';
$('#blockchain').append(contenu);
return true;
}
function addDivForVoid()
{
var contenu = '';
contenu += '<div id="the_void" class="container-fluid '+classes[cur_class]+'">';
contenu += ' <div class="row">';
contenu += ' <div class="col-sm-8">';
contenu += ' <h2>the VOID ... </h2>';
contenu += ' </div>';
contenu += ' <div class="col-sm-4 text-right">';
contenu += ' <div width="100%" class="text-center">';
contenu += ' <img src="images/loading.gif" class="img-responsive"></img>';
contenu += ' </div>';
contenu += ' </div>';
contenu += ' </div>';
contenu += '</div>';
$('#blockchain').append(contenu);
return true;
}
function toggleForwardBtn()
{
if (cur_height.length < 3)
{
var contenu = '';
contenu += '<div id="the_void" class="container-fluid '+classes[cur_class]+'">';
contenu += ' <div class="row">';
contenu += ' <div class="col-sm-8">';
contenu += ' <h2>the VOID ... </h2>';
contenu += ' </div>';
contenu += ' <div class="col-sm-4 text-right">';
contenu += ' <div width="100%" class="text-center">';
contenu += ' <img src="images/loading.gif" class="img-responsive"></img>';
contenu += ' </div>';
contenu += ' </div>';
contenu += ' </div>';
contenu += '</div>';
$('#blockchain').append(contenu);
return true;
$('#fast_forward_btn').removeClass('btn-success');
$('#fast_forward_btn').addClass('btn-secondary');
$('#btn-forward').removeClass('btn-info');
$('#btn-forward').addClass('btn-secondary');
} else {
$('#fast_forward_btn').removeClass('btn-secondary');
$('#fast_forward_btn').addClass('btn-success');
$('#btn-forward').removeClass('btn-secondary');
$('#btn-forward').addClass('btn-info');
}
function toggleForwardBtn()
return true;
}
function gotoBlock(block_name)
{
$(document).scrollTop( $("#explorer").offset().top );
// Bloquer la navigation pendant le calcul
if (!flag_nav)
{
if (cur_height.length < 3)
{
$('#fast_forward_btn').removeClass('btn-success');
$('#fast_forward_btn').addClass('btn-secondary');
$('#btn-forward').removeClass('btn-info');
$('#btn-forward').addClass('btn-secondary');
} else {
$('#fast_forward_btn').removeClass('btn-secondary');
$('#fast_forward_btn').addClass('btn-success');
$('#btn-forward').removeClass('btn-secondary');
$('#btn-forward').addClass('btn-info');
}
return true;
window.alert('A block image is currently computed, please wait ...');
return false;
}
flag_nav = false;
function gotoBlock(block_name)
if (block_name == 'NEXT')
{
$(document).scrollTop( $("#explorer").offset().top ) ;
flag_nav = true;
// Bloquer la navigation pendant le calcul
if ( !flag_nav )
// Supprimer un block
if (cur_height.length < 3)
{
window.alert(' A block image is currently computed, please wait ... ');
window.alert('No Next Block, you are at '+$('#blockSelector').val()+' block !');
return false;
}
flag_nav = false;
if (block_name == 'NEXT')
{
flag_nav = true;
// Supprimer un block
if (cur_height.length < 3)
{
window.alert('No Next Block, you are at '+$('#blockSelector').val()+' block !');
return false;
}
liste_blocks['PREVIOUS'] = liste_blocks['BLOCK_'+cur_height[cur_height.length-1]];
cur_height.pop();
liste_blocks['PREVIOUS'] = liste_blocks['BLOCK_'+cur_height[cur_height.length-1]];
cur_height.pop();
toggleForwardBtn();
toggleForwardBtn();
$('#block_'+cur_height[cur_height.length-2]).slideDown(400, function() {
// Animation complete.
$('#blockchain').children('div:last').remove();
cur_class = 1 - cur_class;
});
} else {
// Ajouter un block
addDivForBlock(cur_height[cur_height.length-1] - 1);
// Décaler d'un block vers le haut
if (cur_height.length > 1) $('#block_'+cur_height[cur_height.length-2]).slideUp();
block_hash = '';
if (block_name != 'LAST') block_hash = '?block_hash='+liste_blocks[block_name];
$.getJSON('data/getBlockInfo.php'+block_hash, function( data ) {
liste_blocks['PREVIOUS'] = data.prev;
liste_blocks['BLOCK_'+data.height] = data.hash;
addInfoForBlock(data);
toggleForwardBtn();
});
}
$('#block_'+cur_height[cur_height.length-2]).slideDown(400, function() {
// Animation complete.
$('#blockchain').children('div:last').remove();
cur_class = 1 - cur_class;
});
return true;
}
} else {
// Ajouter un block
addDivForBlock(cur_height[cur_height.length-1] - 1);
function ajouterPreviousBlock()
{
// Bloquer la navigation pendant le calcul
if (!flag_nav) return false;
flag_nav = false;
// Décaler d'un block vers le haut
if (cur_height.length > 1) $('#block_'+cur_height[cur_height.length-2]).slideUp();
// Ajouter un div
addDivForBlock(cur_height[cur_height.length-1] - 1);
// Mettre les infos du
block_hash = '?block_hash='+liste_blocks['PREVIOUS'];
block_hash = '';
if (block_name != 'LAST') block_hash = '?block_hash='+liste_blocks[block_name];
$.getJSON('data/getBlockInfo.php'+block_hash, function( data ) {
liste_blocks['PREVIOUS'] = data.prev;
liste_blocks['BLOCK_'+data.height] = data.hash;
addInfoForBlock(data);
toggleForwardBtn();
});
}
function initBlockchain(block_name)
{
$(document).scrollTop( $("#explorer").offset().top );
$('#blockchain').html('');
cur_height = [];
cur_class = 0;
flag_nav = true;
return true;
}
function _ajouterPreviousBlock()
{
// Bloquer la navigation pendant le calcul
if (!flag_nav) return false;
flag_nav = false;
// Ajouter un div
addDivForBlock(cur_height[cur_height.length-1] - 1);
// Mettre les infos du
block_hash = '?block_hash='+liste_blocks['PREVIOUS'];
$.getJSON('data/getBlockInfo.php'+block_hash, function( data ) {
liste_blocks['PREVIOUS'] = data.prev;
liste_blocks['BLOCK_'+data.height] = data.hash;
addInfoForBlock(data);
});
}
function initBlockchain(block_name)
{
$(document).scrollTop( $("#explorer").offset().top );
$('#blockchain').html('');
cur_height = [];
cur_class = 0;
flag_nav = true;
block_hash = '';
if (block_name != 'LAST') block_hash = '?block_hash='+getblocHashFromName(block_name);
$.getJSON('data/getBlockInfo.php'+block_hash, function( data ) {
addDivForBlock(data.height);
addInfoForBlock(data);
liste_blocks['PREVIOUS'] = data.prev;
if (data.prev != '0000000000000000000000000000000000000000000000000000000000000000')
gotoBlock('PREVIOUS');
else
addDivForVoid();
});
block_hash = '';
if (block_name != 'LAST') block_hash = '?block_hash='+getblocHashFromName(block_name);
$.getJSON('data/getBlockInfo.php'+block_hash, function( data ) {
addDivForBlock(data.height);
addInfoForBlock(data);
return true;
}
liste_blocks['PREVIOUS'] = data.prev;
if (data.prev != '0000000000000000000000000000000000000000000000000000000000000000')
gotoBlock('PREVIOUS');
else
addDivForVoid();
});
function blockSelectorChange()
{
initBlockchain($('#blockSelector').val());
$('#fast_forward_btn').attr('data-original-title', $('#blockSelector').val());
}
return true;
}
function blockSelectorChange()
{
initBlockchain($('#blockSelector').val());
$('#fast_forward_btn').attr('data-original-title', $('#blockSelector').val());
}
function initBlockSelector()
function initBlockSelector()
{
if (!isInitSelector)
{
// Init the selector
var select = $('#blockSelector');
if (typeof select.isInitSelector == 'undefined')
{
select.isInitSelector = true;
$.each(liste_blocks, function (key, bloc) {
select.append(new Option(bloc.name, bloc.name));
});
}
$.each(liste_blocks, function (key, bloc) {
select.append(new Option(bloc.name, bloc.name));
});
isInitSelector = true;
}
}
function initBlockExplorer(leblock)
{
function _init()
{
$.getJSON('data/getKnownBlocksList.php', function( data ) {
liste_blocks = data;
initBlockSelector();
if (cur_height.length == 0) initBlockchain('LAST');
return true;
}
$(document).ready(function(){
blockchainListener.addBlockHook(initBlockExplorer);
});
}
return {init: _init, ajouterPreviousBlock: _ajouterPreviousBlock};
}();
$(document).ready(function(){
blockchainExplorer.init();
});

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