Thanks. Some is specific to SETI and most of the rest looks like good scientific common sense (independent verification, share all the data). The first step is still rather vague though:<p>&gt;&quot;(the discoverer) should seek to verify that the most plausible explanation for the evidence is the existence of extraterrestrial intelligence rather than some other natural phenomenon or anthropogenic phenomenon before making any public announcement.&quot;<p>What goes into &quot;seek[ing] to verify that the most plausible explanation for the evidence is the existence of extraterrestrial intelligence&quot;?