An Auth-Code (also called an Authorization Code, Auth-Info Code, or transfer code) is a code created by a registrar to help identify the domain name holder (also known as a registrant or registered name holder) of a domain name in a generic top-level domain ( gTLD ) operated under contract with ICANN.

If you want to know the auth-code of your domain at blacknight, it is not the code listed in their domain configuration, but the code will be sent to your email when you unlock the domain.
Please check your email.
If this information is useful to you, don’t forget to comment.