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[lastpost] => 2690167 美国大选结束后，加密衍生品市场情绪转为看涨：报告（转） 1731172366 Lhrlhrgo
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比特币的定义是点对点电子现金系统。所谓p2p，就是poin to point技术，点对点不通过任何金融机构实现交易。现在比特币引入了加密机制，可以有效防止双重支付。其原理是将过去的货币交易联系起来，即不仅要看现在的交易，还要看过去的交易账本，通过过往账本来判断交易是否存在。 7 n. W# X1 e6 c6 C( b. C: p
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第一个名词：时间戳。这是每笔交易的时间标记，由随机列出，每个标记包含所有交易的时间戳，每个新时间戳的生成都是加强之前的时间戳，以判断交易的顺序。 / P/ x* `3 y% |9 L0 o! l
第二个名词:工作量证明哈希现金类似于加密学中的参考。用实例来理解，很难确定每个大数的质数因子，需要大量计算。相反，给定的因素可以快速得出大数。在确定大数的基础上，需要计算大量的CPU才能得到解决方案，但是有了解就可以快速检查结果是否正确。经过大量计算，第一个获得解决方案的节点是完成工作量证书，并延长其块。但是随着数量的增加，计算难度会越来越大，CPU的消耗也会越来越多，这也是为什么现在采矿规模越来越大，BTC产量越来越少的原因。单BTC开挖成本过高。
1 {1 z2 Q. {, f2 g- s! g1 z- v第三，其实比特币存在的关键是激励机制。参与每个诚实节点，完成工作量证明，就可以获得BTC奖励。这就是采矿。正是因为这么多节点的参与和传播，诚实链始终是最长的。由于这种激励机制，黑客参与诚实链建设的收入大于攻击链的收入。
" {, O, u5 K Q ^( O# T比特币和区块链的伟大之处在于，在这样的激励机制和共识机制下，它们吸引了大量的人参与建设沟通链，难以篡改交易信息，形成了良好的交易生态。说到电子货币交易，以往交易模式的缺点是无法防止双重支付，因此需要引入第三方信用机构作为中介。在交易电子货币时，付款人将电子货币发送给中介回收，然后中介将新的电子货币发送给收款人。
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4 g( B# K+ m- F# W今天比特币跌了10% 比特币就像坐过山车一样呀！ |
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( _- L8 D) }& N. j( z& O6 Z B# y
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