Lost my .dat file

Oke… I think I did something stupid in 2013. I did a full recover of my laptop about 3 years ago and I lost my wallet.dat file. I tried to make a backup before doing the recovery, but the .dat file I made is only 0Kb.

I do know the address and login of the account, but I guess without wallet.dat file I will never be able to access my coins again?

There is one topic where someone is saying something about ‘hash’ the containing keys. If there is a possibility to get them back, I would like to know it.

Could someone help me with an answer?

sorry, the answer is, you have loss your coins.

unless you find your wallet.dat file which is your wallet.