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
Ven (currency) Initially, it was transferred using a Facebook application. By late 2008, it could be transferred using email addresses. Later it was positioned as an international digital currency. In December 2009 Hub Culture began using Ven as a micropayment system for the distribution of content produced by members in the network, allowing users to charge access to individual articles or videos posted inside the network system. In 2009, "The Wall Street Journal" described the currency as being pegged to the US dollar, and used by Hub Culture's users to trade goods, services, and knowledge. One user described having been paid in