An icy mountain in Norway’s Svalbard – an all but inhabitable, Arctic archipelago covered in glaciers and inhabited by polar bears – is an unlikely safe haven for cryptocurrency code, let alone a pillar of modern-day civilization. But it's here, 250 meters underground in a forsaken coal mine, that GitHub has chosen to store reams of open-source code. That includes Bitcoin Core, by far the most popular code implementation of bitcoin's underlying infrastructure and one of the most used repositories on GitHub. As a part of an archiving program for safeguarding an important part of technological history, a ... (full story)