Cryptocurrencies background podcasts

This Wed. the Civil Society Instutute is having an informal discussion of cryptocurrencies and bitcoin (giant Wikipedia entry)…

Russ Roberts at Econtalk has several podcasts about Bitcoin.
Bitcoin in Venezuela:
http://www.econtalk.org/archives/2017/02/jim_epstein_on.html
Beginnings back in 2011:
http://www.econtalk.org/archives/2011/04/andresen_on_bit.htm