Yes, your recollection matches mine. Various bases were searched, after being given a hint. The point was that this is what proof of a Creator would look like

Yes, your recollection matches mine. Various bases were searched, after being given a hint. The point was that this is what proof of a Creator would look like (and the aliens suggested there were others). It was, IMHO, a giant gauntlet thrown down to religious folk. And elegantly done, too.