Ethereum researchers propose EIP-8453 to accelerate transaction finality

Ethereum researchers have submitted a draft proposal, EIP-8453, titled “Decoupled Consensus,” which aims to reduce the network's transaction finality time by at least fourfold. Currently, Ethereum's expected finality interval is approximately 960 seconds, or 16 minutes. The proposal seeks to lower this to a target of roughly four minutes, though the draft notes that specific parameters and results are still being analyzed.

The core design change involves separating the voting processes for chain-head selection and finality. Under the current system, these tasks are coupled. The new proposal suggests using a small “available-chain committee” of approximately 512 validators to cast votes on the chain head for each slot, while finality would be achieved through a separate round of attestations from the entire validator set requiring a two-thirds quorum.

Achieving faster finality could benefit cross-chain providers by allowing them to reuse capital more quickly, as they currently often keep funds tied up while waiting for Ethereum transactions to settle. The proposal would require a consensus-layer hard fork. As of late October, the EIP remains in draft status with many technical details, such as committee selection methods and security analysis, still to be determined.