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  • Upskilling help: Smart Contract Dev wants to learn MEV

    Benny Angela

    Member

    Updated: Mar 29, 2025
    Views: 1.1K

    Hello developers

    Right now , I am learning about MEV (front runnint, sandwich attacks etc) and how to design the contracts for resisting it, I want to go deep into this and need upskilling help abt how these MEV techniques work in actual implementations? are there some limitations?

    Can anyone guide me how contract logic works, are there any specific patterns like batch auctions? Need help in learning resources like articles, published documents. forums etc

    Feeling overwhelmed by fragmented info—could really use guidance to connect the dots. Thanks in advance! 🙏

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  • Andria Shines

    Member • 5mos

    To address Miner Extractable Value (MEV) issues in smart contract design, using transaction privacy and randomized ordering helps prevent exploitation. Commit-reveal schemes and batching techniques can reduce MEV risk effectively.

    Commit-reveal schemes require users to submit a commitment transaction first, then reveal it later. This process hides the transaction details from miners or bots during the initial phase, lowering the chance of front-running. However, this method may increase gas costs and is not always suitable for time-sensitive applications.

    Batching transactions, especially with tools like Flashbots, can also minimize MEV. Flashbots allow users to bundle transactions directly to miners, bypassing the public mempool. This prevents bots from isolating individual transactions and reduces MEV risk by creating private transactions.

    Time-based ordering is another method, executing transactions by their timestamps. This works best when combined with other strategies since timestamps alone can be manipulated.

    Adding randomness, such as using Chainlink VRF or other secure random sources, can prevent attackers from predicting outcomes. Pure on-chain randomness is vulnerable, so using external oracles for secure random values is advisable.

    Combining multiple strategies strengthens MEV protection in smart contracts, balancing security with efficiency to guard against various attack methods.

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