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+# Links to specs and RFCs implemented in Mastodon
+
+* [OStatus](https://www.w3.org/community/ostatus/wiki/images/9/93/OStatus_1.0_Draft_2.pdf)
+* [Salmon](http://www.salmon-protocol.org/salmon-protocol-summary)
+* [Portable Contacts](https://web.archive.org/web/20160305010620/http://portablecontacts.net/draft-spec.html)
+* [Atom](https://tools.ietf.org/html/rfc4287)
+* [Atom ActivityStreams](http://activitystrea.ms/specs/atom/1.0/)
+* [Atom Threading](https://tools.ietf.org/html/rfc4685)
+* [PubSubHubbub](https://pubsubhubbub.github.io/PubSubHubbub/pubsubhubbub-core-0.4.html)
+* [Webfinger](https://tools.ietf.org/html/rfc7033)
+* [Link-based Resource Descriptor Discovery](https://tools.ietf.org/html/rfc6415)
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