After a technical proposal to improve Ethereum wallets met with some opposition, a familiar figure swooped in last week to devise an alternative.

After a technical proposal to improve Ethereum wallets met with some opposition, a familiar figure swooped in last week to devise an alternative: none other than Vitalik Buterin, the blockchain's co-founder.

It reportedly took him 22 minutes.

The origin of the story dates back to last month, when Ethereum developers decided to include Ethereum improvement proposal EIP-3074 – allowing for certain functions in wallets to be controlled by smart contracts – in its next big network upgrade, known as the Pectra hard fork.

The work to make Ethereum wallets less clunky is part of a technological move called account abstraction, in which Ethereum externally-owned account (EOA) wallets, the most popular on the blockchain, are turned into smart-contract wallets.

After EIP-3074 was released, some in the community praised the proposal, while others expressed their displeasure. The main concern was that it was not compatible with an earlier proposal, called ERC-4437, which has been on mainnet since February 2023.

A couple days after EIP-3074 was released, Buterin co-wrote a new one, EIP-7702, which serves as an alternative to what is now included in the upcoming Pectra upgrade.

Ethereum core developer Ansgar Dietrichs, who co-wrote EIP-3074 and EIP-7702 with Buterin, said in an interview with CoinDesk via chat that the newest proposal was “the result of a week or so of him being involved in the account abstraction research conversation.”

After the research was done, Dietrichs said, Buterin “indeed speedran the process of writing that EIP.”

“I challenged him to do it in 15," Dietrichs recalled. "It took him 22.”