Ethereum Explores Bitcoin-Style UTXOs to Improve Blockchain Scaling

TheNewsCryptoPublished on 2026-08-17Last updated on 2026-08-17

Abstract

Ethereum co-founder Vitalik Buterin highlighted progress in Bitcoin's UTXO research and outlined a new hybrid scaling approach for Ethereum. This model would combine Ethereum's existing account system with a UTXO (Unspent Transaction Output) state system to enable various activities using different states, while preserving decentralization and node availability. A key proposal involves using native UTXOs for simple payments, which could reduce the permanent state data for payments by approximately 99.8% using cryptographic accumulators like Utreexo. Concurrently, research into recursive STARKs aims to optimize bandwidth usage by aggregating validity proofs, potentially limiting additional consumption to around 2 MB per second per node. This UTXO proposal depends on the Frame Transactions concept (EIP-8141), a programmable transaction frame currently under consideration for a future upgrade called Hegotá, scheduled for 2027. Buterin's comments indicate ongoing, active development in these scaling research areas.

Vitalik Buterin, the co-founder of Ethereum, praised the progress of UTXO research by Bitcoin developers while explaining Ethereum’s new scaling direction. This shows how the new hybrid architecture can be created using Ethereum’s account system along with the UTXO state system.

Such an architecture will enable various activities to take place using various states depending on the needs of activities. However, Ethereum researchers want to achieve scalability without reducing decentralization, censorship resistance, and availability of nodes.

Native UTXOs Could Cut Down Payment State

Utreexo provides a model that Ethereum researchers can leverage to minimize the amount of data stored individually by the nodes using the concept of cryptographic accumulators. Researchers have been exploring the same idea to apply to the Ethereum blockchain, which operates on account-based infrastructure. Toni Wahrstätter proposed the use of native UTXOs in Ethereum for simple payments, while retaining the existing Ethereum accounts. The model would be able to cut down the amount of permanent state by about 99.8% for payment applications.

Recursive STARKs Aim at Bandwidth Usage

A recursive-STARKs mempool study conducted by Buterin aims at solving bandwidth consumption issues associated with the growing Ethereum network. According to the study, the STARK proof is assumed to be optimized to reach about 128 kilobytes. Proofs related to validity may be grouped instead of transmitting each of them separately. With eight peers and a 500-millisecond aggregation period, additional consumption is estimated at around 2 megabytes per second per node. The study is oriented toward efficient proof transmission rather than unbounded transactions.

Frame Transactions Still Under Consideration

The native UTXO proposal relies upon EIP-8141, called Frame Transactions. This proposal is about a programmable transaction frame that includes validation, gas, and execution. Currently, Frame Transactions are considered for Hegotá but are not yet approved by Ethereum. Only the FOCIL proposal has been approved for Hegotá. As per the Ethereum roadmap, Hegotá is scheduled to take place in 2027 after Glamsterdam in late 2026. Hence, Buterin’s Utreexo indicates that Ethereum is still actively working on this research aspect.

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Tags#blockchainBitcoinBitcoin (BTC)BlockchainBTCCryptocurrencyETHEREUMEthereum (ETH)Vitalikvitalik ButerinVitalikButerin

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Related Questions

QWhat is the main scaling direction that Ethereum is exploring according to the article, and what existing model does it combine with?

AEthereum is exploring a new hybrid architecture that combines its existing account system with a Bitcoin-style UTXO (Unspent Transaction Output) state system to improve scaling.

QAccording to Toni Wahrstätter's proposal mentioned in the article, what specific benefit could native UTXOs bring to Ethereum for simple payments?

AThe use of native UTXOs for simple payments in Ethereum could cut down the amount of permanent state by about 99.8% for payment applications.

QWhat is the specific goal of the recursive-STARKs mempool study discussed by Vitalik Buterin in the article?

AThe goal of the recursive-STARKs mempool study is to solve bandwidth consumption issues associated with the growing Ethereum network by focusing on efficient proof transmission rather than unbounded transactions.

QWhich Ethereum Improvement Proposal (EIP) does the native UTXO proposal rely on, and what is its current status for implementation?

AThe native UTXO proposal relies on EIP-8141, called Frame Transactions. Currently, Frame Transactions are considered for the 'Hegotá' upgrade but are not yet approved; only the FOCIL proposal has been approved for Hegotá so far.

QAccording to the article, what key principles do Ethereum researchers want to maintain while achieving scalability?

AEthereum researchers want to achieve scalability without reducing decentralization, censorship resistance, and the availability of nodes.

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