A place for developers to talk about building on Farcaster.

/dev

Bad news: To make EIP 712 signatures work in Go, you have to manually increment the 65th byte of the signature by 27 to make it work (!!)

Good news: Github Co-pilot knows this, and auto completed `sig[64] += 27` at the end of my function without me prompting (or even knowing about this)

Yeah, it turns out this hack appears in more places than you would expect (it's not just Go).

Yeah, it turns out this hack appears in more places than you would expect (it's not just Go).

https://github.com/safe-global/safe-core-sdk/blob/4d1c0e14630f951c2498e1d4dd521403af91d6e1/packages/protocol-kit/src/utils/signatures/utils.ts#L91

Building @warpcast and @farcaster. Previously Coinbase, Brigade, Causes.

Originally https://bitcoin.stackexchange.com/questions/38351/ecdsa-v-r-s-what-is-v