When entering the Pixel Federation Portal for the first time, please choose the “Register” button :

You have the following options for creating a new profile:
Create a new account

This option enables you to create a new Profile connected with an e-mail address.
You will receive an activation e-mail, which needs to be confirmed before you´ll be able to fully enjoy the site.
Please note, that this type of login is required to be able to login to the mobile app - you can read more here.
Register with Facebook

Creating a Facebook account can be made in a few steps. Please, make sure to be logged into the correct Facebook account when doing so.
Register with Google

Pressing the following button will create a new profile connected to your Google+ account. Please, make sure to be logged into the correct Google account when doing so.
Please note, that this type of login cannot be used to login to the mobile app.