Ethereum developers discuss the Free DA issue raised by EIP-7886 and possible solutions.

BlockBeats news, on May 6, Ethereum developer @neroeth published an article discussing "latency execution and free DA issues." Latency execution (EIP-7886) changes the verification process: validators authenticate block validity through pre-checks (such as nonce, 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 B's transaction B to be unable to pay Gas), its data has already been written to the block and processed by the validators, but no fees have been paid. This leads to the Free DA issue: invalid transactions occupy on-chain data availability resources, and validators are not compensated. The article proposes four solutions: optimistic verification, pre-verification with pre-charging, pre-charging entities, and no operations at the execution layer, ensuring that data writing incurs costs through fee pre-deduction, block reorganization, or state rollback, preventing network congestion and economic injustice caused by Free DA.