There are fake Ti-locks out there, but all the fakes I've seen have clear, distinct differences. Like for example- the fakes I've seen have the word "TITANIUM" where "IDAHO MADE" is on the real version, and the fake has a darker finish. Also, the fake didn't have the CRK logo. There are other differences as well (see video).
I had nothing better to do so I did a deep search for fake/counterfeit Ti-locks, and I didn't find any identical to the knife posted by
double gun. I searched the "Big Three" Chinese sites that sell fakes (DHGate, Aliexpress, Wish) and I didn't find any identical to the knife posted either, only the fakes with the clear differences.
I'd be inclined to believe it's real, but of course it's not my money.
Here is a video that shows a fake Ti-lock compared to the real thing.