Chu Ka-Cheong
@kc
A quick technical review 🧵 on AT Protocol (Bluesky) and Farcaster. Both protocols have quite similar objectives, but they have very different design. First, identity. Both want account portability where user can migrate identity to a new service provider without existing server’s cooperation (unlike Fediverse).
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Chu Ka-Cheong
@kc
FC Hub essentially combines small-world and big-world, with Hubs responsible for storing and disseminating every user’s data. In FC, messages are disseminated in a gossip-based P2P protocol. ATP 2-worlds design is more hierarchical in which PDS and indexers uses a HTTP-based protocol to sync messages from a PDS. 11/
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