frames

Farcaster-solidity 0.1.2 is released 🎉 

- Added Frame Actions support, so you can attest to Frames actions onchain

In layman's terms - each Frame click comes with a signature, which proves that the user indeed clicked the button. Now you can verify this click onchain, creating trustless onchain frames!

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

@base builder #001; onchain cities w/ OAK & city3

How do you verify EdDSA signatures on EVM?

Dad, geek, conversation liquidity provider. vrypan.net (home), /weatherxm (work), @l--o--l (fun). Also https://paragraph.xyz/@purplesubmarine

Using Solidity implementation: https://github.com/pavlovdog/farcaster-solidity/blob/main/contracts/libraries/Ed25519.sol

@jessepollak are there any thoughts on adding compiled Ed25519 on OP/Base? Or in some other way? Or lobbying to support it on EVM in general?

It would let smart contracts verify farcaster signatures, which is a huge unlock. There's an old EIP that I tried to resurrect a couple of months ago:

It would let smart contracts verify farcaster signatures, which is a huge unlock. There's an old EIP that I tried to resurrect a couple of months ago:
https://ethereum-magicians.org/t/eip-665-add-precompiled-contract-for-ed25519-signature-verification/16906

if demand grows, we're open to exploring it!

That would be great! EIP665 has been around for years, so I don't expect it to be activated on EVM in general. Activating it on a particular rollup may be a good intermediate solution.

That would be great! EIP665 has been around for years, so I don't expect it to be activated on EVM in general. Activating it on a particular rollup may be a good intermediate solution.

https://eips.ethereum.org/EIPS/eip-665