You are correct, thanks for bringing it to attention, the one managed by Bounty Detective is the legitimate campaign, initiated by Hex CEO Richard Heart himself;
Bounty Detective represented Hex in their original campaign as well, and now they are running round 2, all other Hex campaigns are / would be impostors and fake...
I hope you are right because the CEO denied the first attempted signature campaign by an impostor and even went ahead to say he
didn't care after someone chatted with him
Maybe he should be contacted once again to confirm.