https://cn.vogon.today/%e5%8a%a0%e5%af%86%e8%b2%a8%e5%b9%a3/%e9%80%99%e6%98%af-paxos-%e5%81%9c%e6%ad%a2%e9%91%84%e9%80%a0%e5%b9%a3%e5%ae%89%e7%be%8e%e5%85%83%ef%bc%88busd%ef%bc%89%e7%9a%84%e6%99%82%e9%96%93/