http://www.theaustralian.com.au/business/latest/digitalbtc-achieves-complete-payback-of-bitcoin-mining-investment/story-e6frg90f-1227001364937?nk=0eee6675836a452926abadbe32d62ea7Digital currency firm Digital CC has increased the number of bitcoins it has earned from bitcoin 'mining' and says the bitcoin system is going from strength to strength.
Digital CC, which trades as digitalBTC, was the first bitcoin-focused company to trade on the Australian Securities Exchange, in June 2014.
Digital currencies such as bitcoin are a medium of exchange that is electronically created and stored -- there are no physical notes or coins -- and can be used as alternatives to currencies such as the dollar, yen and pound.