They advertise a 0.1% per hour return with a minimum investment of 1 satoshi.
They claim the minimum withdrawal is 0.0003btc so anyone can test it for USD$0.16
these 2 statements are called "scam bait"
thinking you only need to invest fractions of pennies is the bait
this is because when 16cents turns into 17cents.. it triggered peoples greed and shuts off peoples logic.
they then invest more thinking that the 16cent proof was enough to trust large lumps sums..
.. and thats when the scammers start to steal funds.
they will come up with excuses likes internal issues, so expect delays
the internal issues turn out to be hacks and the funds are gone.
they will even try to use jargon about 'nothing is guaranteed and the markets swung in the wrong direction'
the best thing i can advise anyone is to report this to SEC and inform them its a similar scam to the trendon shavers case a few years back.
lastly if you still feel foolish enough to invest. find out their location. google it and make sure its not a drop box /po box. then get all the details of those running it.
because if you cant find out enough info to slap them in the face with a wet fish should they wrong you. then they are definitely hiding something.
if you do find out all the info.. report them.. dont invest in them