How much i must invest? ROI?
it's impossible
it's impossible
Today collapsed Hashprofit and Hashie "cloud mining" services.
Just before collapse Hashprofit had ROI about 1 week
So it's better to search some safer way to invest money.
cloud mining services look everyday more and more like hyip funds, its just a matter of time before they go bust o_O
@op bitcoin is money, you can get it the same way as eur,usd, or any other currency
cheers