A diagram that represents the data flow in the AT Protocol (atproto) ecosystem, focusing on Bluesky. Atproto users interact through the Bluesky client (smartphone app or web browser), which connects to their Personal Data Server (PDS). When a user posts or likes something, their PDS sends the data to a relay, which aggregates and redistributes it across the network, including other federated services like WhiteWind. The relay provides a continuous data stream of all atproto interactions. The Bluesky AppView processes this data, organizing it into timelines and lists of interactions. Another user’s PDS fetches relevant updates from the relay, and their Bluesky client displays the structured timeline. This setup ensures decentralization, with PDS instances acting as personal storage while still relying on the relay for network-wide data distribution. The relay serves as the backbone, and the Bluesky AppView ensures a user-friendly experience by formatting the data.
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