Twitter co-founder and former CEO Jack Dorsey have lifted the curtain on the latest iteration of its social protocol and a new Bluesky Social app — as part of its decentralized answer to Twitter.

The Oct. 18 announcement comes nearly three years since the initiative was announced by Dorsey in December 2019, with the aim that social media users should have control over their data and be able to move it from platform to platform without permission.

The new protocol has been renamed from “ADX” to “Authenticated Transfer Protocol” — or AT Protocol — and is described as a “protocol for large-scale distributed social applications” that will allow for account portability, algorithmic choice, interoperability and performance.

foundational, @at_protocol https://t.co/vMp6VKaxWY

Under the protocol, user identity will be handled by domain names in the AT protocol, such as @alice.com. These would then map to cryptographic URLs which will secure the users’ account and its data.

This data can also be ported from one provider to another “without losing any of your data or social graph.”

Other features of the protocol include interoperation and enhanced performance, as well as “algorithmic choice” — giving users access to “an open market of algorithms,” similar to the way that users interacting with Web search engines are free to select their indexers.

Bluesky explained that this means users will have more control over what they see and who they reach on social media platforms using the protocol, rather than that aspect being controlled and manipulated by a single corporation seeking engagement.

Bluesky previously described its content moderation model as occurring in “multiple layers through the system, including in aggregation