Bitcoin is a kind of cryptocurrency which is technically a كیف تقوم بتحمیل تطبیق لیدجر لایف employed for payment in the digital world by way of a whole group, from around the world. It really is one of the fastest ways to transfer money freely or at comparatively lower costs. https://topsitenet.com/article/1001320-bitcoins-the-most-secure-type-of-money/