What is Blockchain? In a simple term, it is a digital ledger in which transactions made in bitcoin or another cryptocurrency are recorded chronologically and publicly. Moreover by allowing digital information to be distributed but not copied, blockchain technology created the backbone of a new type of internet. Originally devised for the digital currency, Bitcoin, the tech community is now finding other potential uses for the technology. Bitcoin was invented in 2008. Since that time, the Bitcoin blockchain has operated without significant disruption.