All IPFS users have a folder on their computer where they can store files or webpages. Unique fingerprints of these files, known as hashes, are stored on a blockchain. Anyone who wants a file just needs to look in the blockchain to see who has the file with that hash. Once they find the right person, they can copy the file from that person’s IPFS folder. The trick is that, if you get a file from someone else’s computer, you store a copy on your computer as well. Even if the original file is deleted, the copies stay.
