Iconos para bloques en la blockchain de bitcoin
Posted by Albert Zotkin on February 27, 2020
{ "0": { "hash": "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f", "version": 1, "previous_block": "0000000000000000000000000000000000000000000000000000000000000000", "merkle_root": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b", "time": 1231006505, "bits": 486604799, "fee": "0.00000000", "nonce": 2083236893, "n_tx": 1, "size": 285, "block_index": 0, "main_chain": true, "height": 0, "received_time": null, "relayed_by": null, "transactions": [ { "double_spend": false, "block_height": null, "time": 1231006505, "lock_time": 0, "relayed_by": "0.0.0.0", "hash": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b", "tx_index": 0, "version": 1, "size": 204, "inputs": [ { "sequence": 4294967295, "script_sig": "04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73", "coinbase": true } ], "outputs": [ { "n": 0, "value": "50.00000000", "address": "1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa", "tx_index": 0, "script": "4104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5fac", "spent": false } ] } ] } }
"hash": "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f", "previous_block": "0000000000000000000000000000000000000000000000000000000000000000", "merkle_root": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
function ImageFromHash3($hash){
if(strlen($hash[0])!=64 && strlen($hash[1])!=64 && strlen($hash[2])!=64) return '';
// Create a 64 x 64 image
$image = imagecreatetruecolor(64, 64);
$n=0;
$r = str_split($hash[0],1);
$g = str_split($hash[1],1);
$b = str_split($hash[2],1);
for ($y = 0; $y < 64; $y+=8){
for ($x = 0; $x < 64; $x+=8) {
imagefilledrectangle($image, $x, $y, $x+8, $y+8,
imagecolorallocate($image, hexdec($r[$n])*17, hexdec($g[$n])*17, hexdec($b[$n])*17 ));
$n ++;
}
ob_start();
imagepng($image);
$im = ob_get_contents();
ob_end_clean();
imagedestroy($image);
return '<img src="data:image/png;base64,'.base64_encode($im).'" />';
}
"hash": "0000000000000000001159ec899185ec8f056b7655bf7898fef186454efde94f", "previous_block": "00000000000000000008e901529a41ef9350ff42166c8abeea80f6e708a46463", "merkle_root": "1adeb8334f75e32a335b19005871b2be3ac5555c661ce17b81131b0c43579a61",
y ha sido minado por la pool ViaBTC. La imagen generada con nuestra función sería esta:
data:image/png;base64,iVBORw0KGg oAAAANSUhEUgAAAEAAAABACAIAAAAlC+ aJAAAACXBIWXMAAA7EAAAOxAGVKw4bAA ABWklEQVRoge2awY2DMBRE8SoNeEvwlk ALUAKUACUkJUAJSwlQApSwtOASQgnZBm YOOU0szTsOlqOnL32bH0KsML8kr0nO9j nfzDeSM77eXP9xWECNBdRYQE1oyIOd5A +SZ5Kz86Ql+UXyieTFV8ACaiygxgJqAr vfMxK5+Q+kUfcDPmmmDefj2OGNIj5piq +ABdRYQI0F1NxShxt4feJ+f93xRn3Ebw prj0+a8Txgvj/xOVCTwVPxFbCAGguosY CaWyaDoS4PME9HgHnecP9eXvgeX1d4/6 WdYX7PeGJUfAUsoMYCaiygJgyRzGFIvJ H+vZP5Tzrwe8JPIvOliPOm9jnwmVhAjQ XUFC8QpucLPpgP8o9txn06Pb7x8hceJK 0jfk9oJ5z/zfh3i6+ABdRYQI0F1ISmwv f4a1phnsg9Pi24f7P1MeMvRI+E8+3EXz AVXwELqLGAGguo+Qen00MzJKmE8gAAAA BJRU5ErkJggg== |
This entry was posted on February 27, 2020 at 8:47 am and is filed under Bitcoin, Criptomonedas, informática, Matemáticas. Tagged: argumentos, array, árbol Merkle, base64, base64_encode, Bitcoin, Bloque Génesis, bytes, data, dígito, función, hash, hexadecimal, hexdec, icono, imagecolorallocate, imagecreatetruecolor, imagedestroy, imagefilledrectangle, imagen, imagepng, JSON, Merkle root, ob_end_clean, ob_get_contents, ob_start, PHP, pixel, PNG, RGB, Satoshi Nakamoto, str_split, transacción. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.
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