Birth certificate of one of two female twins born at the same hospital in Hawaii as Obama, one day after he was born in 1961.  Included are the names of the hospital and attendant.  This copyright-free public document was discussed in a newspaper article titled, <a rel="nofollow" class="external text" href="http://the.honoluluadvertiser.com/article/2009/Jul/28/ln/hawaii907280345.html">"Hawaii officials confirm Obama’s original birth certificate still exists"</a> in the <i>Honolulu Advertiser</i> on July 28, 2009. It is certified as a true and correct copy of the original record on file at the Research, Planning, and Statistics Office of the Hawaii State Department of Health with the certification dated May 5, 1966.  Normal Wikipedia practice is to make images look better.<a class="external autonumber" href="https://en.wikipedia.org/wiki/Wikipedia:How_to_improve_image_quality">[1]</a>  However, in this instance, keeping the image in the white on black negative style seemed advisable, so that the nature of the copying process is more obvious (i.e. copying from paper to film to paper at that time).  Also, some info has been redacted, even though it is not redacted in the newspaper article.
State of Hawaii
1961-08-11
<a rel="nofollow" class="external free" href="http://the.honoluluadvertiser.com/dailypix/2009/Jul/28/M1139416728.GIF">http://the.honoluluadvertiser.com/dailypix/2009/Jul/28/M1139416728.GIF</a>