theoretically you could implement a permissionless and censorship resistant AT protocol PDS using blockchains

basically you can build farcaster on AT protocol

but you can't build at protocol on farcaster

Building /recaster, a third-party Farcaster client

different trade offs. i like AT protocol PDS because there is no protocol rent

how do like the AT protocol compared to the Farcaster hub?

Software engineer, creative coder, aspiring generative artist, fridgebuzz.tez/.eth

Does this mean all data would have to be on-chain? Otherwise the smart contract doesn’t mean much.

keep in mind that a PDS can host multiple users

when you sign up to a PDS that you don't own you're trusting the owner to make and keep your data available 

if there is no owner then you don't have to worry about this and that's what a smart contract PDS would enable

Why do you need blockchains at all? What problem do they solve that hosting your own PDS doesn’t?

Farcaster becoming an AT protocol L2 🤝

I started looking at it and it is really nicely done.
I assume most Bluesky users do not give a fuck about it though 😂