Minando en la nube !!... regala 150 GH x registrarse, se puede invertir para comprar mas potencia a partir de 100.000 satos. Minimo de retiro 20.000 satos, y aparentemente no exige inversion Referrals And Commission You can earn more hashpower with SierraHash by refering your friends and family to us, we offer up to 10% of your referrals hashpower, free of charge. Level 7% + 2% + 1% What do we mean by 7% + 2% + 1%? By 7% + 2% + 1% we are on about our refferal comission rates, with 7 % being the people who you have referred directly, 2% being the people referred by your refferals and 1% coming from the people who give you 2%, so the more refferals that happen from you and your friends the more you all earn, it's a never ending gain!