2025 年将大放异彩的 5 个第 2 层比特币

比特币的第 2 层生态系统在过去一年中得到了大幅扩展，从起步阶段发展成为突破性发展的温床。

As 2025 approaches, Bitcoin's Layer 2 ecosystem has seen a remarkable evolution, with new projects emerging to push the boundaries of what was once thought impossible for the apex cryptocurrency. Here are 5 layer 2 Bitcoins that are set to make waves in the coming year, according to CoinGecko.

随着 2025 年的临近，比特币的第 2 层生态系统发生了显着的演变，新项目不断涌现，突破了曾经被认为是顶级加密货币不可能实现的界限。据 CoinGecko 称，以下 5 种第 2 层比特币将在来年掀起波澜。

1. Core Chain: A Bridge Between Bitcoin and Ethereum for a More Powerful Blockchain

1. 核心链：连接比特币和以太坊的桥梁，打造更强大的区块链

Core Chain, which was launched in 2023, currently has a Total Value Locked (TVL) of over $300 million. It was founded by two individuals, one being a staunch Bitcoin supporter and the other being an avid Ethereum enthusiast, with the aim of resolving the blockchain trilemma.

Core Chain于2023年推出，目前锁定总价值（TVL）超过3亿美元。它由两个人创立，一个是坚定的比特币支持者，另一个是狂热的以太坊爱好者，旨在解决区块链三难困境。

Their creation is a layer-1 blockchain that is compatible with the Ethereum Virtual Machine (EVM), combining Bitcoin's decentralization and security with Ethereum's versatility. Utilizing a unique blend of Delegated Proof of Work (DPoW), Delegated Proof of Stake (DPoS), and Non-Custodial Bitcoin Staking, Core Chain is powered by the Satoshi Plus consensus mechanism.

他们的创建是一个与以太坊虚拟机（EVM）兼容的第一层区块链，将比特币的去中心化和安全性与以太坊的多功能性结合起来。 Core Chain 采用委托工作量证明 (DPoW)、委托权益证明 (DPoS) 和非托管比特币质押的独特组合，由 Satoshi Plus 共识机制提供支持。

While CORE and BTC token holders can stake their assets to earn rewards, miners can also allocate their hash power to support Core Chain validators. According to CoinGecko in their video, “This mechanism allows Bitcoin miners to extend their involvement into layer 2 ecosystems.”

虽然 CORE 和 BTC 代币持有者可以质押其资产来赚取奖励，但矿工也可以分配其算力来支持 Core Chain 验证器。根据 CoinGecko 在他们的视频中的说法，“这种机制允许比特币矿工将他们的参与扩展到第 2 层生态系统。”

2. Bitlayer: Enhancing Bitcoin's Scalability with BitVM Technology

2. Bitlayer：利用BitVM技术增强比特币的可扩展性

Launched in April 2024, Bitlayer was founded by a consortium of renowned projects, including Polkadot, Huobi, and Polygon, among others. It introduces the Bitcoin Virtual Machine (BitVM), which leverages Bitcoin's security to provide advanced smart contract capability, similar to Ethereum.

Bitlayer 于 2024 年 4 月推出，由 Polkadot、Huobi 和 Polygon 等知名项目组成的联盟创立。它引入了比特币虚拟机（BitVM），它利用比特币的安全性来提供先进的智能合约功能，类似于以太坊。

Utilizing an optimistic roll-up approach, Bitlayer addresses Bitcoin's scalability concerns, enabling efficient transaction processing without congesting the main network. CoinGecko highlights that “BitVM allows one to check transactions without taxing the central blockchain of Bitcoin.”

Bitlayer 利用乐观的汇总方法解决了比特币的可扩展性问题，在不阻塞主网络的情况下实现高效的交易处理。 CoinGecko 强调，“BitVM 允许人们在不对比特币中央区块链征税的情况下检查交易。”

The ecosystem, which boasts a TVL of around $300 million, features decentralized exchanges, lending platforms, and staking services, among other applications.

该生态系统的 TVL 约为 3 亿美元，具有去中心化交易所、借贷平台和质押服务等应用程序。

3. Merlin Chain: Innovating Bitcoin with zk-Rollup Technology

3. Merlin Chain：利用 zk-Rollup 技术创新比特币

Another EVM-compatible Bitcoin layer 2 solution that utilizes zk-rollup technology is Merlin Chain. It was launched by Bitmap Tech in January 2024 with the aim of “Making Bitcoin Fun Again.” Transactions are processed on Merlin's chain, aggregated, verified using zk-proofs, and then finalized on Bitcoin's base layer.

另一种利用 zk-rollup 技术的、与 EVM 兼容的比特币第 2 层解决方案是 Merlin Chain。它由 Bitmap Tech 于 2024 年 1 月推出，旨在“让比特币再次变得有趣”。交易在 Merlin 的链上进行处理、聚合、使用 zk 证明进行验证，然后在比特币的基础层上完成。

Having quickly gained traction with its innovative approach to enabling diverse DeFi use cases, thus enhancing the Bitcoin ecosystem, Merlin Chain boasts a TVL of $100 million.

Merlin Chain 凭借其支持多样化 DeFi 用例的创新方法迅速获得关注，从而增强了比特币生态系统，其 TVL 高达 1 亿美元。

4. B-Squared: Securing Bitcoin Transactions Seamlessly with zk-Rollups

4. B-Squared：使用 zk-Rollups 无缝保护比特币交易

Another project that leverages zk-rollups for efficient off-chain transaction processing is B-Squared, or B². Commencing in April 2024, it comprises a layer for data availability that is powered by incentivized storage nodes. This ensures the secure long-term storage of off-chain transaction data, which is crucial for resolving disputes or performing audits.

另一个利用 zk-rollups 进行高效链外交易处理的项目是 B-Squared，即 B²。从 2024 年 4 月开始，它包含一个由激励存储节点提供支持的数据可用性层。这确保了链下交易数据的安全长期存储，这对于解决争议或执行审计至关重要。

B²'s TVL of $90 million is attributed to its EVM compatibility, which enables the seamless migration of applications. It also supports various DeFi applications and BTC staking.

B² 9000 万美元的 TVL 归功于其 EVM 兼容性，可实现应用程序的无缝迁移。它还支持各种 DeFi 应用和 BTC 质押。

5. BOB: Bridging Bitcoin and Ethereum with a Hybrid Layer 2 Solution

5. BOB：通过混合第 2 层解决方案桥接比特币和以太坊

Taking a different approach is BOB, which utilizes a hybrid layer 2 solution that spans both Bitcoin and Ethereum. Initially set to launch as an optimistic Ethereum roll-up in May 2024, BOB has managed to garner a TVL of $30 million.

BOB 采用了不同的方法，它利用跨越比特币和以太坊的混合第 2 层解决方案。 BOB 最初定于 2024 年 5 月作为乐观的以太坊汇总推出，现已成功获得 3000 万美元的 TVL。

However, its unique aspect lies in integrating Bitcoin's Proof-of-Work security through merge mining, allowing Bitcoin miners to simultaneously secure both Bitcoin's blockchain and BOB's layer 2 network.

然而，其独特之处在于通过合并挖矿集成了比特币的工作量证明安全性，允许比特币矿工同时保护比特币的区块链和 BOB 的第 2 层网络。