First of all, you should realize that there is no “your” or “mine” bitcoins, nor are there “same” bitcoins. It is just numbers.
Your coins are not “marked” in any way. The transaction you will receive from us will be just a number of coins transferred to
A link could be done just if you receive bitcoin from the address that you deposited bitcoins to. It is not about Bitcoin Fog.
The coins you deposited will stay on the random address which we generated for you. Just when our main account is running low, we
transfer the money from your deposit address to the main pool. In that way, you will get coins from the pool, thought your original
money is still on the random deposited address, which is not connected to your payout. So there is no way to see where you have sent
money to Bitcoin Fog or to random address, because bitcoin address is like any other.
Even if you waited enough for your money reached the pool, there is still no way to see that it was your original coins, since
it was mixed with coins of other users.
Another story is the amount of your withdrawal. If you transfer 1.685 to us, and next day you withdraw almost same amount of
bitcoins, those amounts will be visible in the block chain. Even if there were 15 people, who made same withdrawal that day, the link
between your deposit and withdrawal will be obvious. Even though nobody else has access to our service and can prove that those bitcoins
are yours, the link will be found anyway.
That’s why you should never deposit and withdraw the same amount. Divide your coins into different parts and only then send.
Every time when you need to clean your coins, use new deposit address.