2025 年將大放異彩的 5 個第 2 層比特幣

比特幣的第 2 層生態系統在過去一年中得到了大幅擴展，從起步階段發展成為突破性發展的溫床。

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.

隨著 2025 年的臨近，比特幣的第 2 層生態系統發生了顯著的演變，新項目不斷湧現，突破了曾經被認為是頂級加密貨幣不可能實現的界限。據 CoinGecko 稱，以下 5 種第 2 層比特幣將在來年掀起波瀾。

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

1. 核心鏈：連結比特幣和以太坊的橋樑，打造更強大的區塊鏈

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於2023年推出，目前鎖定總價值（TVL）超過3億美元。它由兩個人創立，一個是堅定的比特幣支持者，另一個是狂熱的以太坊愛好者，旨在解決區塊鏈三難困境。

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.

他們的創建是一個與以太坊虛擬機器（EVM）相容的第一層區塊鏈，將比特幣的去中心化和安全性與以太坊的多功能性結合。 Core Chain 採用委託工作量證明 (DPoW)、委託權益證明 (DPoS) 和非託管比特幣質押的獨特組合，由 Satoshi Plus 共識機制提供支援。

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.”

雖然 CORE 和 BTC 代幣持有者可以質押其資產來賺取獎勵，但礦工也可以分配其算力來支持 Core Chain 驗證器。根據 CoinGecko 在他們的影片中的說法，“這種機制允許比特幣礦工將他們的參與擴展到第 2 層生態系統。”

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

2. Bitlayer：利用BitVM技術增強比特幣的可擴充性

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 於 2024 年 4 月推出，由 Polkadot、Huobi 和 Polygon 等知名專案組成的聯盟創立。它引入了比特幣虛擬機器（BitVM），它利用比特幣的安全性來提供先進的智慧合約功能，類似於以太坊。

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 利用樂觀的匯總方法解決了比特幣的可擴展性問題，在不阻塞主網路的情況下實現高效的交易處理。 CoinGecko 強調，“BitVM 允許人們在不對比特幣中央區塊鏈徵稅的情況下檢查交易。”

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

該生態系統的 TVL 約為 3 億美元，具有去中心化交易所、借貸平台和質押服務等應用程式。

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

3. Merlin Chain：利用 zk-Rollup 技術創新比特幣

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.

另一種利用 zk-rollup 技術的、與 EVM 相容的比特幣第 2 層解決方案是 Merlin Chain。它由 Bitmap Tech 於 2024 年 1 月推出，旨在「讓比特幣再次變得有趣」。交易在 Merlin 的鏈上進行處理、聚合、使用 zk 證明進行驗證，然後在比特幣的基礎層上完成。

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 憑藉其支援多樣化 DeFi 用例的創新方法迅速獲得關注，從而增強了比特幣生態系統，其 TVL 高達 1 億美元。

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

4. B-Squared：使用 zk-Rollups 無縫保護比特幣交易

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.

另一個利用 zk-rollups 進行高效能鏈外交易處理的項目是 B-Squared，即 B²。從 2024 年 4 月開始，它包含一個由激勵儲存節點支援的資料可用性層。這確保了鏈下交易資料的安全長期存儲，這對於解決爭議或執行審計至關重要。

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 萬美元的 TVL 歸功於其 EVM 相容性，可實現應用程式的無縫遷移。它還支援各種 DeFi 應用和 BTC 質押。

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

5. BOB：透過混合第 2 層解決方案橋接比特幣和以太坊

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 採用了不同的方法，它利用跨越比特幣和以太坊的混合第 2 層解決方案。 BOB 最初定於 2024 年 5 月作為樂觀的以太坊匯總推出，現已成功獲得 3000 萬美元的 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，其獨特之處在於透過合併挖礦整合了比特幣的工作量證明安全性，允許比特幣礦工同時保護比特幣的區塊鏈和 BOB 的第 2 層網路。