const BTCMiner = require('bitcoin-miner');
// View this block in Block Explorer: https://insight.bitpay.com/block/00000000000000000020cf2bdc6563fb25c424af588d5fb7223461e72715e4a9
// Get it in JSON format: https://insight.bitpay.com/api/block/00000000000000000020cf2bdc6563fb25c424af588d5fb7223461e72715e4a9
const block = {
version: 536870912,
previousblockhash: '00000000000000000061abcd4f51d81ddba5498cff67fed44b287de0990b7266',
merkleroot: '871148c57dad60c0cde483233b099daa3e6492a91c13b337a5413a4c4f842978',
time: 1,
bits: '180091c1'
};
let nonce = 45291990 // initial nonce
const miner = new BTCMiner(block);
// Calculate the target based on current dificulty for this block (block.bits)
const target = miner.getTarget();
console.log('The target for this block is:');
console.log(target.toString('hex'));
let hash;
let found = false;
console.log('\n[Start Mining with initial nonce:', nonce, ']');
while (nonce < (45291990+10000) && !found) { // check the next 1000 nonces starting from 45291990
hash = miner.getHash(nonce);
found = miner.checkHash(hash);
console.log(hash.toString('hex'), nonce, found ? '<- nonce FOUND!!' : '');
if (found) {
miner.verifyNonce(block, nonce);
}
nonce++;
}
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