You talk to a lawyer (IANAL). It does look at first glance however that your actual landing page links to your Medium page as your Blog (you treat G+ as a sepa

You talk to a lawyer (IANAL). It does look at first glance however that your actual landing page links to your Medium page as your Blog (you treat G+ as a separate link). In this case, I would have a lawyer explain to them that you host your blog on Medium because that's where the cool kids are now (having moved on from tumblr of course). So yeah, if you pixelmagazine.tumblr.com, they still might have filed a takedown but you'd still be right. Next time though, specify the URL to your blog in the contract (there should be a definition for the term Pixel Magazine blog, particularly since that's not your company's name!).