Blockchains and Their Different Security ProtocolsNot all blockchains are created equal. Essentially, they are separated into three ‘generations’. Take the most prominent ones today, Bitcoin and Ethereum, which resemble the first two generations. Bitcoin’s blockchain merely exists to store transaction records of Bitcoin, but Ethereum’s is more like a platform, where developers can write and execute code for their own purposes. In a nutshell, if Bitcoin is nothing more than “digital gold”, the...