body: I recently learned that it's not the first person to register a mark that gets ownership, but rather the first person to actually use the mark in commerce that gets ownership.
  
  
  So what's the best way to establish *first use in commerce* for an online business, like a blog, where the domain name of the blog is what needs to be registered?
  
  
  For example if my blog is called *bloggd*, and the site is up and running, but someone else registers *bloggd* before I do, what is the best way to prove that I was using *bloggd* in commerce first?
  
  
  
title: How to establish first use in commerce?