Quote:
Originally Posted by medard
When you talk to a scientist you'd like to make sure that you both have exactly the same document, or you'd like to know if you have exactly this specific document from this specific source. And the easiest way for that would be a comparison of the MD5 Hash. That's why the University of Freiburg publishes them.
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Or it could also be used by unscrupulous professors and greedy textbook companies to force students to keep re-buying the same textbook, because someone changed the color of a sidebar from last week's edition to this week's.