After you have undeleted my server there was nobody that has claimed the server and the hosting i bought the server from has changed the ip address, could you update my dns to this:
bh1.goshqip.com this was the old IP ; 178.33.201.88:27015

No we cannot give you claim rights to a server you've not claimed.

If the DNS is still on it, of course you could still update the DNS IP as if you still owned the page.

The thing is that i had claimed the server but when you guys undeleted my server I did not notice that you have removed the claimer and the next hours I got informed that the IP was no longer available and when I tried to update the DNS I couldn't because the was no one that has claimed the server.

Will my Rank just go in vain ?
Or is there anything that I can prove that I had claim rights before?

There is no other feature to prove you own a server. We're not willing to go through your invoices and invade your privacy in a process that would be cumbersome and dead simple to exploit.

Regardless, rank looks at most at a weeks worth of data. It doesn't take long at all to gain rank if your server is just as popular.

:) I was just wondering if possible.
Anyway thankyou for your time.