just i came throught their website blockzone and register with them 

and it seems that website is Legit cause when you register with them to claim their token you need to validate KYC 

i went through coingecko to check the coin and here you price 0.06 cent 

https://www.coingecko.com/it/monete/stp-network 

you can register here :  https://www.blockzone.com/en_US/user/reg?invite_id=20210311112825796977 

hey have also very good option which you can stake the coins and they give you start from 2 % of staking it's also good way to earn more token 

and also when you refer another person ( don't know yet how much token )

it's like Digex.io it's alsmost the same function except the amount that they give to you when you register with them 

https://www.publish0x.com/crypto-daily-news/100-dollar-token-for-free-with-digexio-registration-xmkwddw 

as writen in Medium here 

https://medium.com/stp-network/stp-network-launches-defi-initiative-50-million-stp-defi-grant-program-4aa8b1b1c983

in my opinon its very interested project and lets see what will happen next