wow got answered in 1min already

2nd question: is there an easy and efficient (cheap) way to get either (i) all fids' connected addresses easily or (ii) changes in connected addresses?

thinking about how to authenticate `msg.sender` on-chain as someone that controls a given `_fid`:
1. query dune for all (fid, verified address) pairs (updated via neynar)
2. generate merkle tree over all w/ keccak256(fid, address)
3. host API and/or publish this somewhere for free

am I missing something

the main challenge is that verifications change over time. so you'd need to keep the root updated as users add or remove individual verifications. a public Merkle mountain range could be good for this. 

but for something like a one-time mint, probably OK to use a snapshot from a specific point in time.

I'm eth newbie..just learning
(working on @farcaster)

terminally.online

I think if the pattern becomes common it's ok to have some trusted server updating it like every 12/24 hours; worldcoin does this for their verified accounts I think

(spitballing) TEE to update it and anyone can fund the address as needed for gas fees?