have a look at this article: https://steemit.com/steemit/@dragosroua/steemit-newbie-faq-witnesses-what-are-they-and-why-should-you-care
have a look at this article: https://steemit.com/steemit/@dragosroua/steemit-newbie-faq-witnesses-what-are-they-and-why-should-you-care
Thanks @dragosroua