ActivityPub & AT Protocol
A comparison of decentralized social protocols
ActivityPub
- W3C Standard
- Server-to-server federation
- Used by Mastodon, Pixelfed, PeerTube
AT Protocol
- Developed by Bluesky
- Account portability
- Cryptographic data verification
Key Differences
- Federation vs. Network architecture
- Server authority vs. User sovereignty
- Content addressing approaches