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Guest posted a topic in BUSINESSDigital currency Bitcoin has seen its value top $1000 (£815) for the first time in three years after it ended as the best-performing currency of 2016. It traded as high as $1,029 on Tuesday, according to CoinDesk data. Analysts are attributing its jump to increased demand from China, which is where most Bitcoin trading takes place. Bitcoin relies on web-based transactions handled across thousands of computers and is an anonymous and quick way to move money globally. As a result, some speculate people in China are using it to circumnavigate strict government rules aimed at preventing money from leaving the country. China's currency, the renminbi, fell about 7% in value last year. Bitcoin rose 125% in value last year, which makes it the world's best-performing currency when compared with its central bank-issued peers. "The growing war on cash, and capital controls, is making bitcoin look like a viable, if high risk, alternative," said Paul Gordon, a board member of the UK Digital Currency Association. How Bitcoin works Bitcoin is often referred to as a new kind of currency. But it may be best to think of its units being virtual tokens rather than physical coins or notes. However, like all currencies its value is determined by how much people are willing to exchange it for. To process Bitcoin transactions, a procedure called "mining" must take place, which involves a computer solving a difficult mathematical problem with a 64-digit solution. For each problem solved, one block of Bitcoins is processed. In addition the miner is rewarded with new Bitcoins. Verifying bitcoin transactions takes a lot of computer power This provides an incentive for people to provide computer processing power to solve the problems. To compensate for the growing power of computer chips, the difficulty of the puzzles is adjusted to ensure a steady stream of new Bitcoins are produced each day. There are currently about 15 million Bitcoins in existence. To receive a Bitcoin, a user must have a Bitcoin address - a string of 27-34 letters and numbers - which acts as a kind of virtual post-box to and from which the Bitcoins are sent. Since there is no register of these addresses, people can use them to protect their anonymity when making a transaction. These addresses are in turn stored in Bitcoin wallets, which are used to manage savings. They operate like privately run bank accounts - with the proviso that if the data is lost, so are the Bitcoins owned. Historical volatility Bitcoin has been historically volatile since it was first launched in 2009, and many experts have questioned whether the crypto-currency will last. The last time Bitcoin was trading above $1000 was in late 2013. But later that year the currency experienced daily price swings of as much as 40% after the Tokyo-based Mt. Gox exchange was hacked and saw the currency plunge to under $400. However, experts expect Bitcoin to continue its bull run. "As asserted by analysts, 2017 is expected to be a banner year, one that could finally lead the price to pass its all-time high of $1,216.7 set in 2013," CoinDesk said. There are also more Bitcoins in circulation than ever before and it is estimated 12.5 are added to the system every ten minutes. It is estimated the crypto-currency's total worth is now above a record $16bn.