Bitcoin is a digital currency—money that exists only online. Some people have used it to get rich. Others have accidentally lost it forever. Learn what decides bitcoin''s value and how anyone with a fast computer can mine it. You''ll also explore blockchains, the technology used to make bitcoin transactions. See how the blockchains may change the internet forever.

Bitcoin is a digital currency—money that exists only online. Some people have used it to get rich. Others have accidentally lost it forever. Learn what decides bitcoin''s value and how anyone with a fast computer can mine it. You''ll also explore blockchains, the technology used to make bitcoin transactions. See how the blockchains may change the internet forever.