An anonymous reader quotes a report from The Verge: Norway's famous doomsday seed vault is getting a new neighbor. It's called the Arctic World Archive, and it aims to do for data what the Svalbard Global Seed Vault has done for crop samples -- provide a remote, impregnable home in the Arctic permafrost, safe from threats like natural disaster and global conflicts. But while the Global Seed Vault is (partially) funded by charities who want to preserve global crop diversity, the World Archive is a for-profit business, created by Norwegian tech company Piql and Norway's state mining company SNSK. The Archive was opened on March 27th this year, with the first customers -- the governments of Brazil, Mexico, and Norway -- depositing copies of various historical documents in the vault. Data is stored in the World Archive on optical film specially developed for the task by Piql. (And, yes, the company name is a pun on the word pickle, as in preserving-in-vinegar.) The company started life in 2002 making video formats that bridged analog film and digital media, but as the world went fully digital it adapted its technology for the task of long-term storage. As Piql founder Rune Bjerkestrand tells The Verge: "Film is an optical medium, so what we do is, we take files of any kind of data -- documents, PDFs, JPGs, TIFFs -- and we convert that into big, high-density QR codes. Our QR codes are massive, and very high resolution; we use greyscale to get more data into every code. And in this way we convert a visual storage medium, film, into a digital one." Once data is imprinted on film, the reels are stored in a converted mineshaft in the Arctic archipelago of Svalbard. The mineshaft (different to the one used by the Global Seed Vault) was originally operated by SNSK for the mining of coal, but was abandoned in 1995. The vault is 300 meters below the ground and impervious to both nuclear attacks and EMPs. Piql claims its proprietary film format will store data safely for at least 500 years, and maybe as long as 1,000 years, with the assistance of the mine's climate.