Ethereum researchers are exploring a proposal that could reduce the network’s transaction finality time from approximately 16 minutes to around four minutes. The proposed change aims to make settlement faster and potentially lower the cost of moving funds between blockchain networks.
Ben Edgington, who coordinates Ethereum’s fast-finality research, filed the draft on Wednesday alongside Francesco D’Amato, Roberto Saltini, Yann Vonlanthen and Mikhail Kalinin. The proposal is available in an Ethereum Improvement Proposals discussion on GitHub.
The initial target is a fourfold reduction in finality time. However, the design remains unfinished, and developers have not announced an activation date. Several technical details, including voting timings, penalties and parts of the security analysis, remain unresolved.
Why Faster Ethereum Finality Matters
A transaction can be included in an Ethereum block before it becomes final. Finality is the stage at which validators commit to the transaction history and the network treats the finalized block as irreversible under its consensus rules.
That distinction matters when funds move between blockchains. A transfer service may provide money to a customer on the destination network before the corresponding funds on Ethereum have reached finality. The service must then wait for settlement before it can safely treat the original transfer as complete.
Consider a customer transferring $10,000 from Ethereum to another blockchain. A transfer provider could release the equivalent amount from funds it already holds on the destination network, allowing the customer to receive money quickly. The provider, however, must wait for the Ethereum-side transaction to settle before the process is fully completed.
Reducing the finality period from 16 minutes to four could shorten that waiting period. The potential benefit is particularly relevant to services that handle frequent transfers and maintain liquidity across multiple networks.
How a Four-Minute Finality Target Could Reduce Capital Costs
Capital tied up during settlement represents an operational cost for transfer providers. The Ethereum Foundation’s research, as described in the supplied material, treats this idle capital as a cost that could be reduced by speeding up finality.
For a service advancing $1 million every hour, a 16-minute settlement delay would leave approximately $267,000 awaiting repayment at a steady flow rate. With a four-minute delay, that amount would fall to roughly $67,000.
These figures illustrate the potential effect of shorter settlement times on working capital. They are estimates based on the stated transfer rate and waiting periods, rather than a guarantee of savings for every provider. Actual requirements would depend on transaction flows, liquidity arrangements and settlement practices.
Faster finality could also help providers reuse available funds sooner, potentially improving capital efficiency across their operations. Whether those gains translate into lower fees for customers would depend on how individual services price transfers and manage their other costs.
How the Proposal Would Change Ethereum’s Voting System
Ethereum’s current consensus mechanism uses validator votes to support both the selection of new blocks and the finalization of earlier blocks. Under the process described in the proposal, these functions share a voting mechanism, with finality requiring two rounds of validator voting.
The researchers propose separating the two responsibilities into distinct votes. This would allow the finalization process to operate on a faster schedule instead of being tied to the same voting rotation used for block progression.
The proposed separation is intended to provide a framework that developers could optimize over time. However, the four-minute target remains a goal rather than a confirmed network capability, and the unfinished draft still requires further technical work and security analysis.
The proposal also identifies a potential longer-term benefit: making it easier to replace existing signature mechanisms with quantum-resistant alternatives. Such changes could become important if sufficiently powerful quantum computers eventually threaten the cryptographic systems used by blockchain networks.
How Ethereum’s Target Compares With Solana
The proposed four-minute finality period would remain considerably longer than the approximately 150-millisecond finality target attributed to Solana’s Alpenglow upgrade in the supplied material.
The comparison highlights different approaches to transaction confirmation and consensus performance. However, finality times should be compared carefully because networks may use different consensus designs and definitions of confirmation, and the proposal’s target has not yet been implemented.
For Ethereum, the immediate objective is to establish whether separating voting functions can improve finality without compromising network security. Faster settlement could benefit cross-chain services, but the proposal’s practical impact will depend on its eventual design and deployment.
What Happens Next for Ethereum’s Finality Proposal?
The draft remains under development, with voting schedules, penalties and elements of its security analysis still to be determined. Edgington said that “many aspects remain TBD,” while describing the immediate goal as obtaining a proposal number to bring the idea into Ethereum’s formal upgrade process.
That milestone does not mean the change has been approved or scheduled for release. Further research and review will be needed before developers can determine whether the proposed design is secure and practical to implement.
For now, the proposal outlines a potential route toward reducing Ethereum transaction finality from about 16 minutes to four. If adopted, the change could help cross-chain transfer providers release and recycle capital sooner, although the timing, technical details and ultimate cost savings remain uncertain.
