瑞银完成了其UBS Key4黄金产品的概念证明，以太坊层网络ZKSYNC

该模拟是在ZKSYNC测试网络上进行的，是传统金融机构中对区块链技术的重新兴趣的迹象。

Swiss banking giant UBS has completed a proof-of-concept of its UBS Key4 Gold offering on the Ethereum layer-2 network ZKsync.

瑞士银行业务巨头瑞银（UBS）已经完成了以太坊2层网络ZKSYNC上其UBS Key4 Gold产品的概念验证。

The simulation, which was conducted on a ZKsync test network, is a sign of renewed interest in blockchain technology among traditional financial institutions.

该模拟是在ZKSYNC测试网络上进行的，是传统金融机构中对区块链技术的重新兴趣的迹象。

This isn’t UBS’ first experiment with blockchain. The bank previously launched a tokenized money market investment fund, uMint, which is also built on Ethereum.

这不是UBS对区块链的第一次实验。该银行此前启动了一个令牌化的货币市场投资基金Umint，该基金也建立在以太坊上。

UBS’ Key4 Gold is one of the bank's offerings that lets its Swiss clients purchase a direct claim to physical gold. “It allows for fractional gold investments with real-time pricing, deep liquidity, secure physical storage, and optional physical delivery,” the team said in a press release shared with CoinDesk.

瑞银（UBS）的Key4 Gold是该银行的产品之一，可让瑞士客户购买直接索赔实物黄金。该团队在与Coindesk共享的新闻稿中说：“它允许具有实时定价，深厚的流动性，安全的物理存储和可选的物理交付的分数投资。”

The project already exists on the bank's private blockchain, the UBS Gold Network, but the team was looking for ways to scale its project while preserving its privacy. “They came to the conclusion that only zero-knowledge made sense for them, and so they wanted to really put this in practice for a product that they already have live and what this could look like if they use the validium instead,” Pearl Imbach, a Senior Business Development Manager at Matter Labs, the main developer firm behind ZKsync, told CoinDesk in an interview.

该项目已经存在于银行的私人区块链，瑞银黄金网络上，但是该团队正在寻找在保留其隐私的同时扩展其项目的方法。 “他们得出的结论是，只有零知识对他们来说是有意义的，因此他们想真正将其付诸实践，以便将其用于已经存在的产品，如果他们使用有效量，这将是什么样子，” Pearl Imbach ZKSYNC背后的主要开发人员公司Matter Labs的高级业务开发经理在接受采访时告诉Coindesk。

ZKsync is a zero-knowledge rollup, a type of layer 2 scaling system that aims to increase the speed of blockchain transactions and reduce their fees, by using zero-knowledge cryptography. A validium is a different type of layer-2, similar to that of a rollup, but stores the data of those transactions off-chain.

ZKSYNC是一种零知识汇总，这是一种类型的2层缩放系统，旨在通过使用零知识加密术，旨在提高区块链交易的速度并降低其费用。有效量是一种不同类型的第2层类型，类似于汇总，但将这些交易的数据存储在链上。

The test transaction may signal that UBS could be looking more closely at using layer-2 technologies to power some of its activities. However, the bank didn't say whether they would come out with their own layer-2, and Matter Labs' Imbach told CoinDesk that a rollup might not be the right fit for them. “Is this the right product [for UBS]? Perhaps not, but it is something we're just talking openly about, and thinking about what could actually be a good use case for them,” Imbach told CoinDesk.

测试交易可能表明瑞银可能会更仔细地考虑使用2层技术为其某些活动提供动力。但是，银行没有说他们是否会出现自己的2层，而物质实验室的Imbach告诉Coindesk，滚动可能不适合他们。 “这是[瑞银]正确的产品吗？也许不是，但这是我们只是公开谈论的事情，并想到实际上可能是一个很好的用例，” Imbach告诉Coindesk。

This isn't the first time a banking giant has used ZKsync's technology for its own products. Deutsche Bank said in December that it was also planning to build a layer-2 with ZKsync’s technology, indicating how blockchain technology can co-exist or even make traditional financial institutes' products work better.

这不是银行巨头第一次将ZKSYNC的技术用于自己的产品。德意志银行在12月表示，它还计划使用ZKSYNC的技术建立2层，这表明区块链技术如何共存，甚至可以使传统金融机构的产品效果更好。

“What we are offering now, with privacy on top [of the blockchain] is something that is super interesting, and we're doing more and more of these use cases now,” Imbach told CoinDesk.

Imbach告诉Coindesk：“我们现在提供的是非常有趣的（区块链）的私密性，现在我们正在做越来越多的这些用例。”