The American currency is backed on Petrodollars.
http://i.imgur.com/A23EH.pngThe petrodollar conspiracy. Please note that I'm not a libertarian, nor a supporter of Ron Paul. Feel free to poke holes in my explanation or google for better ones/rebuttals.
The US basically killed Qaddafi and Saddam and is actively trying to topple Syrian and Iranian regimes because these countries have refused to peg their oil to the USD, meaning, price it and only sell it for the dollar like the Saudis do. If the USD is a necessary commodity to have in order to purchase oil, then the USD has value beyond being just pieces of paper. Creating this artificial demand for the dollar has been the goal of the US in the Middle East for the previous 30 years. Every other reason you've been told for the senseless wars, trillions wasted and tens of thousands killed, is empty rhetoric. If this monetary driving force wasn't there, there would be little reason to go to war, and we most likely wouldn't have.
Why do we want to create artificial demand so bad?
Because the special interest groups that control the Federal Reserve, want the Fed to print more money but doing so would cause inflation if there wasn't demand for the dollar. Pegging global oil supplies to the USD creates this demand.
Whoa there, the Federal Reserve is a government organization, what do you mean special interest groups?
Actually the Federal Reserve is a private organization. By law, every bank in the US must buy into the Fed and together all major banks own the Fed.
Wait, this is outrageous, how can we justify letting private interests control our nation's money supply?!
The law says that Congress appoints the board that runs the Fed, so its not controlled by the banks.
Oh, so it's cool?
No, as we both know, banks have bought out the congress several times over, so the board is undoubtedly composed of ex-bankers or banker friendly figures.
OK, but what does the Fed have to gain from being able to print money? Why do they want this artificial demand?
Ah, the people who own the Federal Reserve make money by charging the taxpayer interest on every dollar printed in the country, by law. So, naturally, they want to keep printing and printing money and they want us to spend the printed money.
Where is this money going?
50% of govt spending is defense*. So it goes straight to the defense contractors who fight the wars to topple "dictators" who want to keep their national oil, of course! And to top it off, banks own the defense contractors!
But, CNN and MSNBC and Fox News and the rest of the media told me Iran was building nukes because they hate my freedom?
You seem not to recall them telling you about the WMDs. But WHY? Well, guess who owns all five major media companies that control 90% of all information you receive through TV, radio, newspapers, music and movies?
-lolzfeminism
In a similar sense, the Silk Road is backed by Bitcoin.
Based on data from February 3, 2012 to until July 24, 2012, Christin (2013) estimated $15 million in transactions are made annually on Silk Road. Buyers and sellers conduct all transactions with bitcoins (BTC), a cryptocurrency that provides a certain amount of anonymity.