Are you doubting them or vouching for them that they aren't 1xbet? At first, I thought you are vouching for them lol. Anyway, we don't have any prove that they are sister site of 0xbet. The only identical thing is the name but that doesn't guarantee that they are same. Anyone can pick this name for their casino. You know it's not easy to get a common casino url. So, they thought a bit different which is the result of 0x. I don't think it's alarming unless we have some solid proofs, links which direct us for further doubt.
1XBET or 1Xbit is so notorious that anything that has a hint that they have a connection to one casino will be put in question, I'm sure the bounty manager icopress has done research on the platform he already made a post about this issue if there is a piece of solid evidence that will connect them the community is ready to give them bad feedbacks and flags.
I never rule out that 1XBET or 1Xbit will get a new name or a new company just to create a new brand with the same management.
When your company is losing its business and reputation, it will do a makeover or a relaunch very much different from the one that has a bad reputation, until nothing proves that OXBET ITS NOT RELATED TO 1XBET or 1Xbit We have to welcome them here in the community, they are a new casino that wants to have a slice in a big gambling industry.