I screenshoted the doors with my name on. I own the doors,I own the base. While I was building (as you can see the green textscreen in one of the screenshot) he came in,killed me and duped his base into my house.

I hope that that is enough otherwise I don't know how to show to admins how can that be my base other than owning doors.
EDIT: I have to suggest that the 24th screenshot takes the door and the base so you can see it's the same base we are talking about.

I screenshoted the doors with my name on. I own the doors,I own the base. While I was building (as you can see the green textscreen in one of the screenshot) he came in,killed me and duped his base into my house. I hope that that is enough otherwise I don't know how to show to admins how can that be my base other than owning doors. EDIT: I have to suggest that the 24th screenshot takes the door and the base so you can see it's the same base we are talking about.