Henkjan de Krijger
Hoe werkt Bitcoin? https://t.co/KiDnA2yBLC http://pic.twitter.com/c4YOss5nKH — Y O O R S (@Yoorsonly) November 16, 2017
Hoe werkt Bitcoin? https://t.co/KiDnA2yBLC http://pic.twitter.com/c4YOss5nKH