What`s up 
I`ve got an expierence with theese guys  that were mentioned before. 
https://www.davisinafrica.com/post/you-got-to-have-grow
https://www.domestika.org/en/projects/1401153-editorial-book#comment_904656
https://www.crypto-city.com/forum/thread/5733/%E5%9C%A8%E5%86%99%E4%BD%9C%E4%B9%8B%E5%89%8D%EF%BC%8C%E8%A6%81%E5%81%9A%E4%BB%80%E4%B9%88%EF%BC%9F/
https://www.cakart.in/forum/answers/ryptocurrency-hosting
https://nexusconsultancy.co.uk/forums/topic/physics%e7%9a%84%e5%9f%ba%e7%a1%80/
 
And I watned to suggest thanks!