i read at the Ann of BLOCK SIMs maybe similar like Encrypto tell/ETT token (communication on the blockchain) but unfortunately, the project failed and gone without any news
if the team here serious to manage the project I'm sure it will attract many people
however the product of like this used by everyone
I'm pretty sure these people are here to stay.Everyone is trying their best to be as transparent as possible. So I assume they will be successful.