A blockchain is a distributed database of computers connected via peer-to-peer networks that shares a secure synchronised state. It is a software platform that is managed autonomously. Therefore, it can achieve decentralised consensus – meaning that decisions are made by all active parties rather than a single, central authority. Blockchain was implemented along with digital currencies. The blockchain acts as a central bank on the internet by enacting monetary policy and creating money from nowhere. Digital currencies run on the software platform of blockchain. Blockchain databases are typically global systems. As such, it requires global consensus in determining the economics of Blockchain in establishing its regulation, and to save it from failures.