Some of the cattle grazing on the Persson Ranch are tracked using blockchain technology, which may allow consumers to know where their meat comes from and more.
Kamila Kudelska/Wyoming Public Radio
Some workers in low-income countries are choosing bitcoin, a virtual currency powered by blockchain technology, to send money to their families. It's cheaper, faster and doesn't require a middleman.
Andrew Baker/Getty Images/Ikon Images
Eric Frumin (right) stands in front of his solar panels on the roof of his Brooklyn home alongside architect David Cunningham (left) and AeonSolar's Allen Frishman (center).
Courtesy of Eric Frumin