proof of work

Bitcoin's proof of work requires miners to solve computationally expensive puzzles.比特币的工作量证明机制要求矿工解决计算上成本高昂的谜题。

Critics argue that proof of work consumes excessive electricity, while supporters say it provides unmatched security.批评者认为工作量证明消耗了过多的电力，而支持者则表示它提供了无与伦比的安全性。