Who copied Who

Okay, so this is a white hat question talking about something blackhat, So, I guess this would be in White Hat SEO.
My question is, that what if I publish an article on my website, and it doesn't index on google yet, But someone else, comes to my website, steals the article, and publishes it on his website,
And gets it indexed by Google by submitting his page.
Now, when Google comes to crawl my website, it has the same article in it's index already, so, my article would be…

Who copied Who