One sign-in. You control your data, and it moves with you.

One account, any app

Use Certified to sign in across apps in the Ma Earth ecosystem without creating new accounts or starting over. Your identity stays with you.

Apps request access to your data, and you choose what to share, when, and with whom. Nothing moves without your permission.

As you build your reputation through your work, activity, and endorsements, it follows you across apps.

Certified is built on AT Protocol