It's not essential to name your artist or you as a company within your brief. The most important information to include within a brief is the deliverables and expectations you have as well as references, similar work, things you like and critically, things you don't like, (so people can eliminate themselves).
This information helps creatives to get a better handle on your project. An artist name helps with interest but it is those references and expectations which ultimately creatives are looking to align to.
Should you wish to keep your brief anonymous please submit it as confidential within the artist field so we can treat your brief this way.
Should you have any questions on posting briefs and keeping them confidential please drop us a line at - email@example.com