Hello
Some time ago, when patch 1.2 or 1.3 was out, I was asked to register online and activate my game. I don't like entering my game keys online, but knowing I have no choice, I did. After the registration, it created a sig.bin file; and asked me to make backup of that file.
Few days ago, I reformatted my hard drive, and fresh installed my OS. After installing galciv2, I placed my sig.bin file in galciv2 folder. I applied the patch and was about to test play the game(to make sure the patch was applied correctly), but I got a message instead...and it was something like this.

"your sig.bin appears to be genuine, but your SID does not match" (it was few days ago...so I can't remember the exact wording of the message..but was something like that)

So I had to enter my e-mail address and long game key(in online) to activate my game again. Please don't get me wrong. I'm perfectly fine with security feature like this, as long as it is not invasive or does not treat innocent person like criminal; because I believe people has right to protect their work.

So, I'm wondering is it possible for stardock to use any other identification method that is more consistent?(method that doesn't get affect by fresh installing OS and etc.)

It is long post, but thanks for taking your time to read.