Ethereum: Ethereum is a global, open-source platform for decentralized applications. On Ethereum, you can write code that controls digital value, runs exactly as programmed, and is accessible anywhere in the world. Initially dubbed as ‘Bitcoin for business’ – it runs a blockchain-based distributed computing platform and operating system featuring smart contract functionality that developers everywhere are now using to create blockchain games and rewards. Currently, like most global blockchains, it is going through a stage of scalability pressure, but is constantly being developed and many cases are made that world wide scalability will be possible.