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A Layer-2 Token Swap Protocol based on ZK-Rollup
一种基于ZK-Rollup的二层协议令牌交换协议
https://threedimensional.pro/#/
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Since 2019, the blockchain industry has undergone breathtaking changes. De-centralized finance – DeFi – continues to grow at an exponential rate. The Total Value Locked in different DeFi protocols has exceeded 10 billion US dollars.With the continuous development of numerous on-chain assets and off-chain as-sets going on-chain, we believe that the Total Value Locked in DeFi protocols will soon exceed 100 billion US dollars. These on-chain assets require fast, fric-tionless, trust-free, and real-time exchange services, which has led to the rise of new decentralized exchange(DEX) protocols such as Uniswap[1].
自2019 年以来，区块链行业发生了翻天覆地的变化。集中式金融（ DeFi ）继续以指数速度增长。不同DeFi 协议的价值已经超过100 亿美元。随着众多上链资产的不断发展和下链作为-集上链，我们相信，总价值锁定在DeFi 协议将很快就会超过1000 亿美元。这些连锁资产需要快速，低成本。无信任和实时交换服务，这导致了新的分布式交换（ DEX ）协议，如Uniswap[1].
Although the new DEX model spearheaded by Uniswap has achieved sig-nificant development, it still has obvious drawbacks. First, the high gas fee ofdozens of dollars per transaction hinders new users to entry; second, everytrans-action and every execution needs to wait for at least one block to confirm, which gives an unsatisfactory experience; and third, subject to the limiting TPS of Ethereum, Uniswap has a clear bottleneck in transaction numbers and transac-tion capacity per second. Those drawbacks are not unique on Uniswap. They are common issues faced by all DEXes.
尽管Uniswap率先推出的新DEX型号已经达到了SIG-虽然发展迅猛，但仍存在明显的弊端。第一，高昂的燃气费，每笔交易数十美元会阻碍新用户进入；第二，每个每次执行都需要等待至少一个区块确认，这给了不满意的经验；第三，以限制Etalum的tps，Uniswap在交易中有一个明显的瓶颈。数字和传输容量每秒。这些缺点不是在Uniswap上是独一无二的。它们是所有DEX所面临的共同问题。
ZK-Rollup[2] is a new type of Layer-2 scalability solution. Compared with other Layer-2 scalability solutions such as Plasma, ZK-Rollup has considerable advantages in terms of security, cost, TPS, and usability. It is especially suitable for building a Layer-2 decentralized exchange.
ZK 罗勒普[2]是一种新型的第二层可伸缩性解决方案。其他Layer - 2 可伸缩性解决方案，如Plasma 、 ZK - Rollup 有在安全性、成本、 TPS 和可用性方面具有相当大的优势。特别适合建设二级分散交易所。
Three Dimensional (a ZK-Rollups based Swap protocol) is a brand-new exchange proto-col based on ZK-Rollups technology. Through Zk-Rollups technology, all ERC20 tokens are transferred to Layer2, and the consistent state of Layer1 and Layer2 is guaranteed based on continuously generated zero-knowledge proofs. This so-lution allows all exchanges to execute on Layer 2, achieving real-time swap with zero gas fees, unlimited scalability,removing the constraint from the Ethereum's TPS, and block confirmation time. The user no longer has to wait for the one-block confirmation time foreach transaction. Three Dimensional enables a DEX to provide the smooth user experience of a centralized exchange(CEX) while allowing the users to have full custody over their funds. We believe that Three Dimensional is the future form of trading.It will trigger a significant evolution of all existing DEXand CEX.
三维（一种基于ZK - Rollups 的交换协议），是一种全新的基于ZK - Rollups 技术的交换协议。
技术，所有ER C20 令牌被转移到第二层，并且一致的第1 层和第2 层的状态是基于连续生成的零知识证明。这种假设允许所有的交换在第二层，实现零燃气费实时切换，无限扩展，从以太坊的TPS 中移除约束，并进行块确认用户不再需要等待一个块的确认时间每个交易。三维使一个DEX 能够提供流畅的集中式交换（ CEX ）的用户体验，同时允许用户对他们的资金有充分的监管。它将引发现有所有DEX 的重大变革，还有CEX。
At present, the Three Dimensional team has finished most of the development work. We will release the Three Dimensional exchange protocol in early October. In the future, we will promote the DEX exchange standard on Layer-2, so that all existing DEXes can seamlessly access and use the Three Dimensional exchange protocol.
目前，三次元团队已经完成了大部分。我们将发布三次元交换协议。今后，我们将在10 月初推出DEX 交易所标准。Layer-2 ，这样所有现有的DEX 都可以无缝地访问和使用这个交换协议。
