Hello, doing my first upload it's an ai generated image that I captioned, I'm not sure what to put in the "source" field?

The coypright is star trek and the character has a tag already, but those seem to go into the tags field?

source is for where you found the image. usually you just put in a link to the page. assuming you didn't create the image yourself, of course

Thank you.

So given I generated the image myself, I'll just leave it blank?