reference :
https://bitcoincloudmining.org/en/oxbtc/
http://www.bestcloudmining.net/en/oxbtc-com/
You have even went beyond the normal to come out with this findings about the cloud mining site as I won't even bother to check it before concluding that any cloud mining site is not even worth putting money into at this period of crypto evolution. Several popular name you have on the poll up there at one point or the other have disappointed their investors while some that were worthy investment at some point have turned to waste of money with several of investors balances hanging with no breakthrough in sight talk less of a cloud mining site that is barely known. Invest in cloud mining sites, forget your fund from moment you click send from your wallet even before one confirmation. A search on Google and the forum here would solve all of the curiosities about the viability of cloud mining.