About: http://webisa.webdatacommons.org/233411523

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	They are not backed by a commodity, but they are backed by the promise that the US government will accept them in payment for all debts, including taxes, which means that they can be traded for commodities easily.
http://www.w3.org/ns/prov#wasQuotedFrom	slashdot.org