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
Currency symbol Currency symbol A currency symbol is a graphic symbol used as a shorthand for a currency's name, especially in reference to amounts of money. Although several former currency symbols were rendered obsolete by the adoption of the euro, having a new and unique currency symbol implementation of which requires the adoption of new Unicode and type formats has now become a status symbol for international currencies. The European Commission considers the global recognition of the euro sign part of its success. In 2009, India launched a public competition to replace the ₨ ligature it shared with neighbouring countries. It finalised