Cryptocurrencies

"The worlds of finance and technology have been rocked by Bitcoin and other cryptocurrencies: encrypted digital currency created by complex computer algorithms. First developed in 2009 and launching several speculative frenzies, cryptocurrencies have created and destroyed fortunes over their . . . history. Across years of New York Times articles, readers will discover the unfolding story of a technology that, while rarely performing as promised, has produced . . . effects that cannot be ignored"--Provided by publisher.