64 bit client, real or fake?

i want to ask where i can find the ligit 64 bit client.
every where i search i do not find it, or people only talk about it but not posting the official link for the client.
so i wonder if the 64 bit client is fake.
if it is real, can you please tell me where i can find it.
thank you in advance.

I'm quite certain its the dx11 client, which can be set in the launcher options, dx9 is 32-bit only and dx11 is 64-bit only, so it stands to believe the dx11 client is 64bit.

You can look in your game folder if you like: SquareEnix\FINAL FANTASY XIV - A Realm Reborn\boot specifically, thee is a ffxivsysinfo.exe and a ffxivsysinfo64.exe which is used for collecting info for support requests if you desire further proof.

There is no separate download or installer, select which you want to use and go from there.