77. // Get last block of chain
let lastBlock = blockChains[blockChains.length - 1];
// Append to chain
blockChains.push(generateBlock(lastBlock, 'Block 1'));
重複著這個步驟
你會得到更多 Blocks
92. function verifyBlock(prevBlock, block) {
// block should have the hash of previous block
if (prevBlock.hash !== block.prev) {
return false;
}
// Check the hash of block
let hash = calcHash(prevBlock.hash + block.data);
if (block.hash !== hash) {
return false;
}
return true;
}