数百个比特币第 2 层正在运行，但这意味着什么？

大多数比特币社区不知道的是，区块链上显然有 400 个“第 2 层”在运行。

Bitcoin layer 2 (L2) protocols are seeing increasing developer activity, according to a new report from Electric Capital, with Lightning and Stacks emerging as the most active projects.

根据 Electric Capital 的一份新报告，比特币第 2 层 (L2) 协议的开发者活动不断增加，其中 Lightning 和 Stacks 成为最活跃的项目。

L2s have been gaining traction as a way to scale Bitcoin and enable more complex applications on the network. They work by processing transactions off-chain and then submitting a compressed batch, or roll-up, to the main chain periodically.

L2 作为一种扩展比特币并在网络上支持更复杂应用程序的方式而受到关注。它们的工作方式是在链下处理交易，然后定期向主链提交压缩批次或汇总。

This approach can significantly increase the throughput and reduce the costs of transactions on Bitcoin, while still maintaining the security of the base layer.

这种方法可以显着提高比特币的吞吐量并降低交易成本，同时仍然保持基础层的安全性。

As of the second quarter of 2023, there were four projects that stood out in terms of developer activity, according to the Electric Capital report: Lightning, Stacks, Rootstock and Xaya.

根据 Electric Capital 报告，截至 2023 年第二季度，有四个项目在开发者活动方面表现突出：Lightning、Stacks、Rootstock 和 Xaya。

Lightning is a well-known L2 that enables fast, low-cost payments on Bitcoin. It has been in development for several years and is already used by a number of applications and services.

闪电网络是一种著名的 L2，可以实现快速、低成本的比特币支付。它已经开发了几年，并且已经被许多应用程序和服务所使用。

Stacks is another L2 that has been gaining attention recently. It is designed to bring smart contracts and decentralized applications (DApps) to Bitcoin.

Stacks 是最近受到关注的另一个 L2。它旨在将智能合约和去中心化应用程序（DApp）引入比特币。

Stacks has its own token, STX, which is used to pay for transactions and to participate in the network’s consensus mechanism.

Stacks拥有自己的代币STX，用于支付交易并参与网络的共识机制。

Rootstock is an L2 that provides a virtual machine on Bitcoin, enabling developers to deploy Ethereum smart contracts on the network. It also has its own token, RSK, which is used for gas fees and to participate in the network's security.

Rootstock 是一个 L2，在比特币上提供虚拟机，使开发人员能够在网络上部署以太坊智能合约。它还拥有自己的代币 RSK，用于支付汽油费并参与网络安全。

Finally, Xaya is an L2 that is designed to enable the creation of decentralized games and other interactive applications on Bitcoin. It has its own token, CHI, which is used to pay for transactions and to participate in the network's consensus mechanism.

最后，Xaya 是一个 L2，旨在支持在比特币上创建去中心化游戏和其他交互式应用程序。它有自己的代币CHI，用于支付交易并参与网络的共识机制。

These four projects are just a few of the many L2 protocols that are being developed on Bitcoin. As L2s continue to mature and gain adoption, they could play a major role in scaling Bitcoin and enabling a wider range of use cases on the network.

这四个项目只是在比特币上开发的众多 L2 协议中的几个。随着 L2 的不断成熟和普及，它们可以在扩展比特币和在网络上实现更广泛的用例方面发挥重要作用。