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币安 智能链”,”postTime”:1640261869000,”postTimeUTC”:1640261869000,”content”:”
币安一直以来致力于推动区块链生态系统的发展。
近年来在与社区的良好互动下，区块链生态系统取得了长足发展。BNB和其它社区支持的项目一样，也踏上了自己的演变之旅。我们认真聆听了来自币安智能链（BSC）和BNB社区的声音，决定推出BNB自动销毁新机制。
BNB自身是一个运营良好的生态系统。为了更好维护BSC和BNB社区的利益，今天币安宣布采用全新的BNB自动销毁机制，旨在与BSC及BNB社区共同推动实现一个更加健康的区块链生态系统。
BNB是什么？它在区块链生态系统中扮演什么角色？
BNB是BSC的原生代币（类似于以太坊的GAS），是该区块链上所有交易的“燃料”。同时，它也是参与BSC去中心化链上治理所必需的代币。币安对BSC没有任何控制权或运营权。
BSC（以及BNB）由社区用户、开发者、验证节点、委托节点等提供支持。除链上交易费用和其它链上用途以外，BNB还作为一种支付形式被各交易平台和商家广泛接受。币安接受BNB支付，但无法决定谁能获得BNB以及如何使用BNB。点击这里可以查看与币安无关但接受BNB使用的应用程序名单。
如何运作BNB自动销毁机制？
目前存在两种BNB销毁机制。第一种机制是BEP95，会在BSC上实时销毁一部分作为交易费用的BNB。自2021年11月30日BSC进行Bruno 升级后，每天销毁约860枚BNB。第二种是进行季度性销毁的BNB加速销毁机制。上个季度进行了第17次BNB销毁，共有1,335,888 枚BNB退出流通。
未来，BNB季度销毁机制将被自动销毁机制取代，这可以提升BNB销毁的透明度和可预测性。新的自动销毁机制是客观、可验证的，不再与币安交易所的利润挂钩。它会针对BNB价格自动调整销毁数量，反映出BNB的供求关系以及该季度的出块数量（根据链上信息进行统计）。具体计算公式如下：
上述公式中，B代表BNB销毁数量；N代表该季度BSC的出块总量。① P代表BNB的平均美元价格。② K是作为价格锚的常数值，初始值设为1000。③当BNB流通总量低于1亿时，BNB自动销毁机制将会停止运作。
①BSC的一般出块速度为3秒，一小时内大约能生产1200个区块（一小时3600秒，除以3）。按照一个季度有3个月，每个月有30天，N的值约为3600 ÷ 3 × 24 × 30 × 3 = 2,592,000，其中24为一天的小时数，30为一个月的天数，3为一个季度的月数。
②P是由BSC上主流的预言机价格提供商（如ChainLink）给出的样本中位数，取样间隔为10000个区块，约为8.3小时。
③K值会根据BSC上的BEP提案及社区投票结果而产生变化。
下图显示了在自动销毁机制下，不同BNB均价所对应的预估销毁数量。BNB自动销毁机制实施后，根据上述公式计算的预期销毁数量将被公开。
创新，永无止境
自2017年推出以来，BNB在社区的推动与支持下以多种方式积极发展。币安相信这一全新的自动销毁机制将会开启BNB和BSC的新发展阶段。更重要的是，它将促使BNB不断创新，从而不断推动区块链生态系统的发展。
在这里，我们要感谢社区一直以来对生态系统建设的鼎力支持与贡献。创新永无止境，建设永不停息！
