PHP에서 블록체인 기술을 구현하는 방법

<?php

require __DIR__ . '/vendor/autoload.php';

use BitWaspBitcoinBlockBlock;
use BitWaspBitcoinBlockBlockHeader;
use BitWaspBitcoinBlockBlockFactory;
use BitWaspBitcoinScriptScriptFactory;
use BitWaspBitcoinTransactionFactoryTxBuilder;
use BitWaspBitcoinTransactionTransaction;
use BitWaspBitcoinTransactionTransactionInput;
use BitWaspBitcoinTransactionTransactionOutput;
use BitWaspBitcoinUtxoUtxo;

class myBlock
{
    public function __construct($prevBlockHash, $data)
    {
        $coinbase = ScriptFactory::create()->op('OP_RETURN')->data($data);
        $builder  = (new TxBuilder())
            ->input(new TransactionInput('', 0xffffffff), new Utxo('', 50))
            ->output(new TransactionOutput(50, $coinbase));
        $tx       = $builder->get();
        $header   = new BlockHeader(
            '1',
            $prevBlockHash,
            $tx->getOutputs()[0]->getScript(),
            time(),
            Bin::hex('ffff001d')
        );
        $block    = BlockFactory::create()
            ->fromHex($header->getHex() . bin2hex($tx->getHex()));
        echo "Mining block...
" . $block->getHash() . "
";
    }
}

class myBlockchain
{
    protected $blocks = [];

    public function __construct()
    {
        $this->blocks[] = new myBlock('', 'Hello World!');
        $this->blocks[] = new myBlock($this->blocks[0]->getHash(), 'Goodbye World!');
    }

    public function getBlocks()
    {
        return $this->blocks;
    }
}

$myBlockchain = new myBlockchain();
print_r($myBlockchain->getBlocks());