Zip-file that contains nothing but itself?

Question

Just out of curiosity, does there exist a valid zip-file (according to format spec) that, contains nothing but itself?

Put another way, does the function implemented by

Answer 1

You can read about it here: http://research.swtch.com/2010/03/zip-files-all-way-down.html

Here you will find r.zip, which contains itself.