You can apply to get your artist pages on your social media channels such as Facebook and Instagram with them directly. It's important to make sure that you are aware of the criteria for becoming verified: namely that your profile or page needs to be Authentic, Unique, Complete and Notable.

You can find out more here and apply for verification here.

Remember that if your page or profile doesn't meet the criteria for a verified badge, there are other ways to let people know it's authentic. For example, you can link to it from an official website.