Unverified60% confidenceFactExact time
ActivityPub is a federated social protocol and also the technical foundation of Mastodon.
2
Sources
60%
Confidence
Long-term
Relevance
7/12/2026
First Seen
Sources
自建阅读追踪系统：Craig Mod的数字花园实践与数据主权
hackernewshackernews7/3/2026
Related Claims
UnverifiedThe Fediverse is a collection of social platforms that communicate with each other through the ActivityPub protocol, and Mastodon is the most mainstream one among them.73% similarUnverifiedActivityPub是Mastodon所采用的联邦协议，用户身份绑定于所在实例域名，实例关闭则账号随之消失71% similarUnverifiedThe Fediverse is based on the ActivityPub protocol, connecting independent instances such as Mastodon and Pixelfed.70% similarUnverifiedActivityPub is the protocol behind Mastodon and Threads, while AT Protocol is used by Bluesky.66% similarVerifiedThe ActivityPub protocol was formally standardized by the W3C in 2018, allowing different instances to mutually follow, repost, and interact, forming a distributed social network that requires no central server.64% similar
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