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Ethereum Developers Discuss Free DA Issue and Mitigation Strategy Arising from EIP-7886

2025.05.06 14:32:37

On May 6th: The Ethereum developer @nero_eth released an article that delves into the "Delayed Execution and Free DA Issue." Delayed Execution (EIP-7886) modifies the verification process. Validators verify the validity of a block through prechecks (such as nonce and balance) before the transaction is fully executed. If a transaction fails during execution due to insufficient balance (for example, Transaction A exhausts Account B's balance, causing Transaction B from B to fail to pay Gas), its data is written into the block and processed by validators but without any payment. This leads to the Free DA Issue: invalid transactions occupy on-chain data availability resources, and validators do not receive compensation. The article puts forward four solutions: optimistic verification, pre-validation and pre-charging, pre-charging entities and execution layer no-op. These solutions ensure that the cost of data writing is deducted in advance through fees, block reorganization, or state rollback, preventing network congestion and economic injustice caused by Free DA.
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