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[lastpost] => 2690189 Block将推进比特币挖矿计划 因川普的加密友好政策似乎将落实(转) 1731170152 NBA专家
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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。
! A w9 W7 m; Z6 c
; t9 R/ G5 a$ ?% M% E3 B
+ O7 F c$ A, q/ a5 m0 a, \" R) {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。 4 W3 C7 ~7 a+ Q- g
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。 6 r2 `; J$ a8 ]. g2 y
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) S, U9 u2 ~2 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。 ' y( Q) _. _ Q; M
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' d% r- U8 x8 j2 _
今天比特币跌了10% 比特币就像坐过山车一样呀! |
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. r8 G0 h' s H# l7 P虚拟币需要看看,世界要变了虚拟世界了 |
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