Digital currency founded DigiCash, an electronic cash company, in Amsterdam to commercialize the ideas in his research. It filed for bankruptcy in 1998. In 1999, Chaum left the company. In 1997, Coca-Cola offered buying from vending machines using mobile payments. After that PayPal emerged in 1998. Other systems followed suit, such as e-gold, but it faced issues because it was used by criminals and was closed by U.S Department of Justice in 2005. In 2008, bitcoin was introduced, which marked the start of digital currencies. Origins of digital currencies date back to the 1990s Dot-com bubble. One of the first was E-gold,
Digital currency bank issued CAD-Coins onto a blockchain similar Ethereum. The banks used the CAD-Coins to exchange money the way they do at the end of each day to settle their master accounts. China A deputy governor at the central bank of China, Fan Yifei, wrote that "the conditions are ripe for digital currencies, which can reduce operating costs, increase efficiency and enable a wide range of new applications". According to Fan Yifei, the best way to take advantage of the situation is for central banks to take the lead, both in supervising private digital currencies and in developing digital legal tender