Yes, exactly. If someone (or me) refers to my website or article on another website, I am getting a backlink from that website. Suppose, I am writing something on Medium and I mentioned Hive Blog in my post there, I am creating a backlink for Hive blog.
In the same way, when we are posting on Leofinance, we see the link (Posted using Leofinance) on PeakD, Hive Blog, etc. That means Leofinance is getting backlinks from Hive and PeakD.
RE: Link Building for SEO: Focus on Building Backlinks