Ethereum’s current Proposer-Builder Separation (PBS) framework, designed to mitigate MEV concentration, has led to centralization, with two entities controlling 80% of block production as of February 2025. The research suggests replacing PBS with a Byzantine Fault Tolerance (BFT)-backed system where all clients propose blocks via a shared random algorithm, aiming to restore decentralization.

Under PBS, specialized “builders” craft blocks to optimize MEV extraction, but this has concentrated power among a few players like Flashbots. The proposed system mandates that every Ethereum client—such as Geth or Nethermind—generates blocks using a Verifiable Delay Function (VDF) and RANDAO for randomness, ensuring uniform transaction selection. Validators then prune invalid transactions and reach consensus via a BFT model requiring a 3T+1 threshold.

By randomizing block construction, the system “eliminates block-level MEV,” preventing transaction reordering for profit. It also distributes block-building across thousands of clients, contrasting sharply with PBS’s reliance on centralized builders. The author “malik672” claims this could reduce Ethereum’s 12-second block intervals to 6-8 seconds through parallel processing.

Compared to PBS, the system prioritizes decentralization over optimization, potentially sacrificing some rollup efficiency. While PBS excels in scalability and MEV redistribution, the proposal offers stronger resilience via client redundancy and simpler validator roles. Trade-offs include challenges in synchronizing mempools and managing blob inclusion for Danksharding.

The paper concludes that Ethereum faces a choice between PBS’s scalability and this system’s egalitarian ideals. Future work includes testing blob-heavy mempool synchronization and refining rollup-specific optimizations.

免责声明：本文章仅代表作者个人观点，不代表本平台的立场和观点。本文章仅供信息分享，不构成对任何人的任何投资建议。用户与作者之间的任何争议，与本平台无关。如网页中刊载的文章或图片涉及侵权，请提供相关的权利证明和身份证明发送邮件到support@aicoin.com，本平台相关工作人员将会进行核查。