I stumbled across Keybase a little while ago and have finally got round to setting it up / linking to my online identities, such as proving that I’m the admin of this website etc. This process was fast and painless to perform. A link to my Keybase page can be on the link in this post or under the contact section.
What is Keybase and how is it useful you may ask. Well one of the main purposes of this service is to link various identities together in order to allow prove of ownership. An example of this would be if you have someone’s Twitter name, then you can use Keybase to lookup what their PGP key is or another account they may have such as Facebook. This service stores it all in one place making it much more convenient. It also replace the need for having to share email address etc. as a way to prove identity / ownership of an account.
Over the past while the Keybase team have been working on extending this project to bring crypto to everyone. An recent example of this is the new app that provides additional services such as encrypted file sharing and encrypted chat that are accessible by a GUI or CLI depending on what you are most comfortable with.
For more information about Keybase and its various offerings you can check out the documentation page and blog. Though keep in mind that this documentation is current limited due to project still being in its infancy so expect this to change in the future.