Your account is verified during ArtCap registration, according to the requirements you see in the photo below:

Press NEXT button. Then please select passport or ID Card:  

Fill in the data about your document. If it does not have an expiration date, then  mark it :

After that, a window for uploading the document will appear:

Click to upload your documents and press submit.  When you finish, you need to wait till your verification be done.  To check the status of  uploaded verification documents  press here.