Sanitized public dumps of the MathOverflow database will probably be created roughly once every month.


All the content contributed to MathOverflow is cc-wiki licensed, intended to be shared and remixed. We even provide all our data as a convenient data dump.

But our cc-wiki licensing, while intentionally permissive, does require attribution:


If you republish this content, we require that you:
  1. Indicate that the content is from MathOverflow in some way. It doesn't have to be obnoxious; a discreet text blurb is fine.
  2. Link to the original question on MathOverflow (e.g.,
  3. Show the author names for every question and answer.
  4. Link each author name back to their user profile page (e.g.,
You can "nofollow" the links if you like.


You are not legally obligated to cite where you learned things, but good citations are academically honest and they help your readers by making it easy to track things down. The recommended citation format for MathOverflow posts as follows. Suppose you're citing post number 1234 (which could be a question or an answer), whose author is John Doe.

[12] Doe, John. Title of the question. (2010)

The important thing is to include a link to the relevant post. MathOverflow makes this easy to do in a couple of ways:


Here is a description of what information is contained in each file in the dump.






  • Id
  • PostId
  • VoteTypeId
  • CreationDate
  • UserId (only for VoteTypeId 5, 6, or 7)
  • BountyAwarded (only for VoteTypeId 9)