If you can clarify what type of paper (subject, length, deadline, format), I can either help you locate it or assist in drafting it from scratch.
Reality: ULPTXT works for files of any size, from a single line ( Hello ) to a 10GB log dump. Hashing is linear time. However, for massive files, a Merkle tree (hash-of-hashes) is often used to achieve verification without uploading the whole file. ulptxt+verified