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一文了解CESS：第一个满足商业存储需求的去中心化存储网络
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互联网巨头们的集体断网，再次为中心化网络敲响“丧钟”。 2022年6月21日，全球性的网络基础设施服务提供商Cloudflare发生故障，导致数百个大型网站出现断网，其中包括Discord、Medium、Coinbase、NordVPN和Feedly等巨头均受到影响。这种由“单点故障”导致的大面积断网让更多人再次考虑去中心化存储网络的必要性。 区块链倡导去中心化，但到目前为止，存储一直是去中心化的短板。一方面，区块链项目的前端和中间件部署在中心化的服务器上，容易受到攻击；另一方面，NFT、Gamefi等数据并没有实现去中心化存储。那么为这些存在的问题提供一个有效的解决方案就会产生一个新的商业模式——如何实现区块链网络的节点、NFT、GameFi的去中心化存储并实现流媒体或社交媒体在去中心化网络上的部署。 CESS的Web3之路 Web 3一词被Gavin wood在2014年解读为区块链技术带来的新一代互联网，当时Gavin还只是以太坊联合创始人兼CTO，尚未建立Parity和Polkadot（波卡）。2016年，Polkadot启动，以实现Web3的多链愿景，解决区块链之间的“孤岛”问题，让链上的应用程序和服务可以安全地跨链通信。CESS是Cumulus Encrypted Storage System的缩写，它作为一个基于substrate框架开发的去中心化基础设施，不仅能够为整个Polkadot 生态提供通用存储模块（指波卡生态项目通过在 CESS 的存储模块上集成即可把数据存在 CESS 存储系统，也可以调用这些数据上链），而且能为整个 Web3 世界及部分 Web2.0 企业提供去中心化数据云存储解决方案。 与其它去中心化存储项目相比，CESS通过随机选取轮值共识节点机制、多副本可恢复存储证明、多类型数据确权机制、代理重加密技术等创新，解决了去中心存储应用过程中费用高、检索慢、上传下载慢等问题，使去中心化存储能够满足流媒体这类需要高并发和传播及时性的商业应用需求。CESS也可以支持类似于去中心化的百度云盘和去中心化谷歌云盘这样的常见应用，更能支持GameFi、元宇宙等对链上数据交互有高需求的新一代应用。 在Polkadot生态中CESS是个“优等生”。Polkadot 2021年的亚太地区黑客松中，CESS LAB获得了“Build a Blockchain”的一等奖；2022年1月25日，CESS完成了Web3基金会（W3F） Grant需要交付的所有内容；2022年3月7日，W3F再次批准了CESS为Substrate提供存储模块的赠款提案。2022年6月29日，完成了关于《CESS为Substrate提供存储》的全部交付，通过了SBP（Substrate Builders Program）里程碑1。 今年波卡最大的全球性活动Polkadot Decoded期间，CESS中国社区经理Andy Zou在杭州的分享中指出了当前去中心化存储赛道的痛点，并提出了CESS的解决方案，如用多副本可恢复存储证明机制来解决传统存储的单点故障，CESS是第一个提供空间存储服务的去中心化存储网络。CESS全球市场运营经理John Humphreys-Ramos则在布宜诺斯艾利斯会场上介绍了CESS的随机选取轮值共识节点（R |
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