![PBS NewsHour - Making Sen$e show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/046/313/small/making-sen-e-pbs-newshour-podcast-pbs.jpg)
Summary: The basic idea of bitcoin is simple: Instead of a financial institution holding a bank ledger, a chain of computers linked through the internet are all using the same software to record and verify every transaction. But how can a cryptocurrency be worth anything in the first place? Economics correspondent Paul Solman reports.