Digital currency of its creators. "Forbes" writer Tim Worstall has written that the value of bitcoin is largely derived from speculative trading. Bitcoin has also been criticised for its energy inefficient SHA-256-based proof of work. Digital currency Digital currency (digital money, electronic money or electronic currency) is a type of currency available in digital form (in contrast to physical, such as banknotes and coins). It exhibits properties similar to physical currencies, but can allow for instantaneous transactions and borderless transfer-of-ownership. Examples include virtual currencies and cryptocurrencies and central bank issued money accounted for in a computer database (including digital base money). Like
Digital gold currency e-gold complied with all other terms of its plea agreement, it was not able to obtain money transmitting licenses due to its guilty plea. Since returning value to customers could constitute money transmitting without a license, e-gold entered into an agreement in 2010 with the US Government to enable e-gold account holders to claim the "monetized value" of their accounts, collectively valued in excess of 90 million US Dollars. 1mdc was a digital gold currency backed by e-gold rather than by physical gold. In April 27, 2007, a US court ordered e-gold to freeze or block the e-gold accounts 1mdc