And guess what? You don't need blockchain for that.
Torrents exists, IPFS dropped dependency on block chain. What blockchain do is that if your literal neighbor has the file you want, you must first connect to the global super inefficient network to sync your chain. And if you have censored Internet? Well...
Layer torrent on top of Yggdrasil on top of I2P and you'll get faster, more decentralized and more resilient network than any blockchain ever done. Such network would continue to work from friend to friend even if your whole town get cut from global net.