Global Cryptocurrency MarketOverview:
A cryptocurrency is a digital tool designed to function as a means of exchange using strong cryptography to secure financial transactions, control the creation of additional units and verify the transfer of assets. Cryptocurrencies are a type of digital currency, virtual currency or alternative currency. Cryptocurrencies use decentralized control as opposed to centralized electronic money and central bank systems. The decentralized control of each cryptocurrency relies on a distributed accounting technology, usually a blockchain that serves as a database of public finance transactions. Bitcoin launched for the first time as open source software in 2009, is generally considered the first decentralized cryptocurrency. Since the launch of Bitcoin, more than 4,000 altcoins have been created (alternative variants of Bitcoin or other crypto-currencies).