What’s the simplest implementation of a soulbound NFT on Base?

For an FID?

the soulbound stuff is at the bottom of the contract

for enforcing attachment to a fid, not possible without a backend sig scheme (which this contract uses for minting). i don't think anyone maintains a *full* registry of fids <> verified addresses onchain

Working on Farcaster and Warpcast. Longer thoughts at https://dwr.email

the soulbound stuff is at the bottom of the contract

for enforcing attachment to a fid, not possible without a backend sig scheme (which this contract uses for minting). i don't think anyone maintains a *full* registry of fids <> verified addresses onchain
https://basescan.org/address/0xdb77084adb7fa5d84103998e66164d0369e736f1#code