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

or actually might make more sense to open-source the merkle tree API (probably super simple) that reads from a dune query running once every _ hours