There is an analogy with data compression: if you remove a byte, in for example a zip file, and then try to expand it, it might work and give you a different re

There is an analogy with data compression: if you remove a byte, in for example a zip file, and then try to expand it, it might work and give you a different result (it likely doesn't due to a checksum error). I think something similar was used in the SHA-1 collision attack (shattered.io) to generate different jpeg images that have the same checksum.