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Martin Kleppmann (martin@nondeterministic.computer)'s status on Tuesday, 06-Feb-2024 23:52:00 JST Martin Kleppmann

I helped the Bluesky team write a paper explaining the underlying architecture and the reasons why it works the way it does. Releasing the paper today to celebrate that you no longer need an invite code to sign up for a Bluesky account: https://arxiv.org/abs/2402.03239
In conversation Tuesday, 06-Feb-2024 23:52:00 JST from nondeterministic.computer permalink
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  Bluesky and the AT Protocol: Usable Decentralized Social Media
  
  Bluesky is a new social network built upon the AT Protocol, a decentralized foundation for public social media. It was launched in private beta in February 2023, and has grown to over 3 million registered users in the following year. In this paper we introduce the architecture of Bluesky and the AT Protocol, which is inspired by the web itself, but modernized to include streams of real-time updates and cryptographic authentication. We explain how the technical design of Bluesky is informed by our goals: to enable decentralization by having multiple interoperable providers for every part of the system; to make it easy for users to switch providers; to give users agency over the content they see; and to provide a simple user experience that does not burden users with complexity arising from the system's decentralized nature. The system's openness allows anybody to contribute to content moderation and community management, and we invite the research community to use Bluesky as a dataset and testing ground for new approaches in social media moderation.
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  pettter (pettter@mastodon.acc.umu.se)'s status on Tuesday, 06-Feb-2024 23:51:59 JST pettter
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  @martin Is it still the case that you can't stop posts from being read by people you've blocked, or controlling the overall visibility of posts?
  
  In conversation Tuesday, 06-Feb-2024 23:51:59 JST permalink
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  pettter (pettter@mastodon.acc.umu.se)'s status on Wednesday, 07-Feb-2024 18:18:35 JST pettter
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  @martin Not if posts are not distributed to non-followers/blocked servers, and you have a way to stop people from following you, like in AP.
  Sure there's screenshots and whatnot, but there are ways to limit spread if you are interested in doing so.
  Related question: Does Bluesky have a DM system? Are those posts also public?
  
  In conversation Wednesday, 07-Feb-2024 18:18:35 JST permalink
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  Martin Kleppmann (martin@nondeterministic.computer)'s status on Wednesday, 07-Feb-2024 18:18:37 JST Martin Kleppmann
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  - pettter
  @pettter That's correct – all posts in Bluesky are public (you can choose to hide them from logged-out web interface users, but they are still available to logged-in users and via the API). Blocking someone can never totally stop them from reading your posts because they could just log in to a different account to read your posts.
  
  In conversation Wednesday, 07-Feb-2024 18:18:37 JST permalink

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