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Are there any existing implementations of a smart contract wallet that can produce ed25519 signatures?

Dad, geek, conversation liquidity provider. vrypan.net (home), @l--o--l (fun). devcoin:$lemon3

I don't think it's possible to efficiently produce them on EVM.

Full-time builder. @pimlico | @33bits | @66bits | farcaster-solidity | x.com/potekhin_sergey. Zero-knowledge and asynchronous transactions evangelist.

I used to verify ed25519 signatures here - https://github.com/pavlovdog/farcaster-solidity, takes 1m gas per signature 😜