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zkSync 是以太坊的扩展和隐私引擎。它目前的功能范围包括以太坊网络中 ETH 和 ERC20 代币的低 gas 传输、原子交换和限价订单以及原生 L2 NFT 支持。本文档是对 zkSync 开发生态系统的高级描述。
zkSync 建立在 ZK Rollup 架构之上。ZK Rollup 是一种 L2 扩展解决方案,其中所有资金都由主链上的智能合约持有,而计算和存储则在链下执行。对于每个 Rollup 块,都会生成状态转换零知识证明 (SNARK),并由主链合约进行验证。这个 SNARK 包括 Rollup 块中每笔交易的有效性证明。此外,每个区块的公共数据更新都通过主链网络以廉价的 calldata 发布。
此架构提供以下保证:
Rollup 验证器永远不会破坏状态或窃取资金(与侧链不同)。 即使验证者因数据可用而停止合作,用户也始终可以从 Rollup 中检索资金(与 Plasma 不同)。 多亏了有效性证明,用户或单个其他受信任方都不需要在线监控 Rollup 块以防止欺诈(与支付渠道或 Optimistic Rollup 不同)。
也就是说,ZK Rollup 严格继承了底层 L1 的安全保障。
首先,zkSync 作为一种扩容解决方案,能够进行传输,并且可以快速且便宜地进行。
其次,zkSync 对智能合约友好。以 2021 年为目标,可以使用 Zinc、基于 Rust 的类型安全编程语言编写合约,甚至可以重用现有的 Solidity 代码。合同的互操作性包含在合同部分。
第三,zkSync 对交易所友好。原子交换——交换协议的重要组成部分——已经在主网上可用!
第四,zkSync 原生支持 NFT。
最后,所有主要平台都实现了 zkSync 支持。

主网:https://uptime.com/s/zksync
zkSync是来自Matter Labs的以用户为中心的 zk rollup 平台,它是以太坊的扩展解决方案,已经存在于以太坊主网上。主要特性:
极低的交易费用 无信任协议 资金是加密安全的,就像在以太坊主网中一样 用户始终掌控自己的资金 无需运营活动来保证资金安全

在zkSync中,每笔交易的成本有两个组成部分:
链下部分:状态存储和 SNARK(零知识证明)生成的成本。这部分依赖于硬件资源的使用,因此是不变的。我们的基准估计每次转账约为 0.001 美元。 链上部分:对于每个zkSync区块,验证者必须支付以太坊gas来验证 SNARK,另外每笔交易还要额外支付约0.4k gas 来发布状态。链上部分是一个变量,取决于以太坊网络中当前的gas价格。但是,这部分比普通 ETH/ERC20 转账的成本要便宜几个数量级。

zkSync 非常突出在 L2 扩展解决方案中的安全性和可用性方面。得益于尖端密码学和链上数据可用性的结合,zkRollup(zkSync 的核心技术)是唯一不需要任何操作活动来保证资金安全的 L2 扩展解决方案。例如,用户可以离线一年,然后回来并确保在没有任何外部帮助的情况下安全地提取他们的资产——即使 zkRollup 验证器早已不复存在。在我们目前的开发阶段,我们鼓励用户监控链的升级,如果他们不同意即将发生的变化,则退出——在未来,升级将需要严格的选择加入。
总结:天王级项目注定不平凡! 来源:金色财经 |
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