It is -- and Brewster Kahle and the Archive have been thinking about this for a long while (see this talk from him five years ago: https://archive.org/details/L

It is -- and Brewster Kahle and the Archive have been thinking about this for a long while (see this talk from him five years ago: https://archive.org/details/LockingTheWebOpen_2016 https://archive.org/details/LockingTheWebOpen_2016 ). The model you can think for this would be to have as the Archive as the "node of last resort" of content-addressable storage, making sure there's always one node up with the content you want. The incentive challenges are making sure that the average number of nodes is more than one, because, as Brewster likes to say, "libraries burn; it's what they do", plus all the traditional challenges of maintaining a commons at high levels of resilience. Once you have data on a network like IPFS, we can use a number of incentive models to make sure it stays there, including charitable projects like the Archive, government support (archives are traditionally state projects -- if every country's archive was pinning this content, it would be far more resilient), and decentralized incentive frameworks like Filecoin. (Disclosure: I work for the Filecoin Foundation; in our decentralized preservation work, we've funded the Internet Archive's work in this area, though I should emphasise that IA works with a lot of different decentralizing technologies through their https://getdweb.net/ https://getdweb.net/ community.)