樂觀總結：以太坊可擴展性之旅的突破

樂觀匯總是以太坊可擴展性解決方案的一個組成部分，它可以處理鏈下交易以減少擁堵和汽油費用。這些匯總的運作方式是假設交易有效並將它們作為單一區塊發送到主網，由於沒有立即驗證，因此可以實現高交易吞吐量。然而，使用者可以使用「故障證明」來質疑無效交易，以確保系統的完整性。 Optimistic rollups 是 Optimism OP Stack 的關鍵部分，OP Stack 是一個用於以太坊可擴展性的綜合軟體套件。

Optimistic Rollups: A Scalability Solution for Ethereum

樂觀總結：以太坊的可擴展性解決方案

Amidst the burgeoning realm of blockchain technology, the Ethereum network has emerged as a formidable platform for decentralized applications and smart contract functionality. However, as Ethereum's popularity has surged, so too has the issue of network congestion, resulting in prolonged transaction times and exorbitant gas fees.

在區塊鏈技術的蓬勃發展中，以太坊網路已成為去中心化應用程式和智慧合約功能的強大平台。然而，隨著以太坊的普及，網路擁塞問題也隨之而來，導致交易時間延長和高昂的天然氣費用。

To address these scalability challenges, developers have devised an array of Layer-2 solutions, including optimistic rollups, which offer a promising approach to enhance Ethereum's transaction processing capabilities.

為了解決這些可擴展性挑戰，開發人員設計了一系列 Layer-2 解決方案，包括樂觀匯總，它提供了一種有前途的方法來增強以太坊的交易處理能力。

Understanding Optimistic Rollups

了解樂觀匯總

Optimistic rollups operate on the principle of optimistic validation, wherein all transactions within a block are initially assumed to be valid. This assumption enables rapid transaction processing, as the burden of validation is deferred until later.

樂觀匯總按照樂觀驗證的原則進行操作，其中區塊內的所有交易最初都被假定為有效。這種假設可以實現快速交易處理，因為驗證的負擔被推遲到以後。

At the core of an optimistic rollup is a "sequencer," a specialized node responsible for aggregating and bundling transactions into blocks. These blocks are then submitted to the Ethereum mainnet, where they are recorded as a single transaction, known as a state commitment.

樂觀匯總的核心是“定序器”，這是一個專門的節點，負責將交易聚合並捆綁到區塊中。然後，這些區塊被提交到以太坊主網，在那裡它們被記錄為單一交易，稱為狀態承諾。

Benefits of Optimistic Rollups

樂觀匯總的好處

The absence of real-time validation during transaction processing grants optimistic rollups several advantages over conventional blockchain protocols.

交易處理過程中缺乏即時驗證使得樂觀匯總比傳統區塊鏈協議具有多個優勢。

1. High Transaction Throughput: By eliminating the need for immediate validation, optimistic rollups significantly increase the number of transactions that can be processed per second. This enhanced throughput alleviates network congestion and reduces transaction delays.
2. Reduced Gas Fees: The aggregation of numerous transactions into a single block significantly lowers the gas costs associated with each individual transaction. Users can enjoy substantial savings compared to direct transactions on the Ethereum mainnet.

Fraud Detection and Dispute Resolution

高交易吞吐量：透過消除立即驗證的需要，樂觀匯總顯著增加了每秒可處理的交易數量。這種增強的吞吐量緩解了網路擁塞並減少了交易延遲。降低了 Gas 費用： 將大量交易聚合到一個區塊中可以顯著降低與每筆交易相關的 Gas 成本。與以太坊主網上直接交易相比，用戶可以享受大幅節省。詐欺偵測和爭議解決

While optimistic rollups assume the validity of transactions, a mechanism exists to challenge any fraudulent or invalid entries. Any user can submit a "fraud proof" during a designated period to dispute a transaction.

雖然樂觀總結假設交易的有效性，但存在一種機制來質疑任何欺詐或無效條目。任何用戶都可以在指定期限內提交「欺詐證明」來對交易提出異議。

If a fraud proof is successful, the contested state commitment is removed from the chain and replaced with a corrected version. This dispute resolution process ensures the integrity and security of the optimistic rollup system.

如果詐欺證明成功，有爭議的國家承諾將從鏈中刪除並替換為更正的版本。此爭議解決過程確保了 Optimistic Rollup 系統的完整性和安全性。

Optimism and the OP Stack

樂觀主義和 OP 堆疊

Optimism, a prominent provider of Layer-2 scaling solutions, leverages optimistic rollups as the foundation of its comprehensive software suite, the OP Stack. This comprehensive set of tools offers a diverse range of capabilities for developers and users, including:

Optimism 是一家著名的 Layer-2 擴充解決方案供應商，利用 Optimistic Rollup 作為其綜合軟體套件 OP Stack 的基礎。這套全面的工具為開發人員和使用者提供了多種功能，包括：

1. L1 Bridge: A secure and efficient gateway for transferring assets between Ethereum and Optimism's Layer-2 network.
2. Sequencer: A high-performance node responsible for ordering and bundling transactions for inclusion in rollups.
3. Dispute Manager: A specialized contract that facilitates the submission and adjudication of fraud proofs.
4. Optimistic Virtual Machine (OVM): A modified version of the Ethereum Virtual Machine that enables smart contract execution on Optimism's Layer-2 chain.

Conclusion

L1 橋：用於在以太坊和Optimism 的第2 層網路之間轉移資產的安全高效的網關。排序器：負責排序和捆綁交易以包含在匯總中的高效能節點。爭議管理器：促進提交和裁決的專門合約Optimistic 虛擬機器 (OVM)：以太坊虛擬機的修改版本，可在 Optimism 的第 2 層鏈上執行智慧合約。結論

Optimistic rollups represent a significant advancement in Ethereum's scalability landscape. By embracing the power of optimistic validation, these solutions offer lightning-fast transaction processing, reduced gas fees, and robust fraud detection mechanisms. As the Ethereum ecosystem continues to evolve, optimistic rollups are poised to play a transformative role in unlocking the full potential of decentralized applications.

樂觀總結代表了以太坊可擴展性領域的重大進步。透過利用樂觀驗證的力量，這些解決方案提供了閃電般快速的交易處理、降低的汽油費和強大的詐欺檢測機制。隨著以太坊生態系統的不斷發展，樂觀匯總將在釋放去中心化應用程式的全部潛力方面發揮變革性作用。