I go to this project whitepaper, I found something that usually happens. I see the whitepaper of this project is same as a project that called by Bitcoin E-Currency (BTCE). Surely with some of editing to make it different, but basically it's very the same.

Bitcoin E-Currency (BTCE) Whitepaper chace version : Whitepaper
and in the whitepaper, written the date is 2/28/2021, which I'm sure it's more than old than Hashbit.

Hashbit Whitepaper : Whitepaper
The whitepaper is write in 10/25/2021

BTCE


Hashbit