數百個比特幣第 2 層正在運行，但這意味著什麼？

大多數比特幣社群不知道的是，區塊鏈上顯然有 400 個「第 2 層」在運作。

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.

根據 Electric Capital 的一份新報告，比特幣第 2 層 (L2) 協議的開發者活動不斷增加，其中 Lightning 和 Stacks 成為最活躍的項目。

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 作為一種擴展比特幣並在網路上支援更複雜應用程式的方式而受到關注。它們的工作方式是在鏈下處理交易，然後定期向主鏈提交壓縮批次或匯總。

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

這種方法可以顯著提高比特幣的吞吐量並降低交易成本，同時仍保持基礎層的安全性。

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.

根據 Electric Capital 報告，截至 2023 年第二季度，有四個專案在開發者活動方面表現突出：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.

閃電網路是一種著名的 L2，可以實現快速、低成本的比特幣支付。它已經開發了幾年，並且已經被許多應用程式和服務所使用。

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

Stacks 是最近受到關注的另一個 L2。它旨在將智能合約和去中心化應用程式（DApp）引入比特幣。

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

Stacks擁有自己的代幣STX，用於支付交易並參與網路的共識機制。

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 是一個 L2，在比特幣上提供虛擬機，使開發人員能夠在網路上部署以太坊智能合約。它還擁有自己的代幣 RSK，用於支付汽油費並參與網路安全。

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.

最後，Xaya 是一個 L2，旨在支援在比特幣上創建去中心化遊戲和其他互動式應用程式。它有自己的代幣CHI，用於支付交易並參與網路的共識機制。

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.

這四個項目只是在比特幣上開發的眾多 L2 協議中的幾個。隨著 L2 的不斷成熟和普及，它們可以在擴展比特幣和在網路上實現更廣泛的用例方面發揮重要作用。