Bitcoins are traded anonymously over the Internet, without any participation on the part of established financial institutions. As of 2012, sales of drugs and other black-market goods accounted for an estimated 20 percent of exchanges from bitcoins to U.S. dollars on the main Bitcoin exchange, called Mt. Gox. The Drug Enforcement Agency recently conducted its first-ever Bitcoin seizure, after reportedly tying a transaction on the anonymous Bitcoin-only marketplace Silk Road to the sale of prescription and illegal drugs.Some Bitcoin users have also suggested that the currency can serve as a means to avoid taxes. That may be true, but only in the sense that bitcoins aid illegal tax evasion, not in the sense that they actually serve any role in genuine tax planning. Under federal tax law, no cash needs to change hands in order for a taxable transaction to occur. Barter and other non-cash exchanges are still fully taxable. There is no reason that transactions involving bitcoins would be treated differently.Outside of the criminal element, Bitcoin’s main devotees are speculators, who have no intention of using bitcoins to buy anything. These investors are convinced that the limited supply of bitcoins will force their value to follow a continual upward trajectory.Bitcoin has indeed seen some significant spikes in value. But it has also experienced major losses, including an 80 percent decline over 24 hours in April. At the start of this month, bitcoins were down to around $90, from a high of $266 before the April crash. They were trading near $97 earlier this week, according to mtgox.com. bitcoin blog
Most often it is described as a non-government digital currency. Bitcoin is also sometimes called a cybercurrency or, in a nod to its encrypted origins, a cryptocurrency. Those descriptions are accurate enough, but they miss the point. It’s like describing the U.S. dollar as a green piece of paper with pictures on it.I have my own ways of describing Bitcoin. I think of it as store credit without the store. A prepaid phone without the phone. Precious metal without the metal. Legal tender for no debts, public or private, unless the party to whom it is tendered wishes to accept it. An instrument backed by the full faith and credit only of its anonymous creators, in whom I therefore place no faith, and to whom I give no credit except for ingenuity.I wouldn’t touch a bitcoin with a 10-foot USB cable. But a fair number of people already have, and quite a few more soon may.This is partly because entrepreneurs Cameron and Tyler Winklevoss, best known for their role in the origins of Facebook, are now seeking to use their technological savvy, and money, to bring Bitcoin into the mainstream.The Winklevosses hope to start an exchange-traded fund for bitcoins. An ETF would make Bitcoin more widely available to investors who lack the technological know-how to purchase the digital currency directly. As of April, the Winklevosses are said to have held around 1 percent of all existent bitcoins.Created in 2009 by an anonymous cryptographer, Bitcoin operates on the premise that anything, even intangible bits of code, can have value so long as enough people decide to treat it as valuable.