Board Thread:Naruto Discussions/@comment-25139119-20140722023329/@comment-23887466-20140722095917

When Nagato died, the Rinnegan was still in his eye sockets. The Edo Tensei simply bring back someone at the time of his death. I don't think there is any deeper meaning behind it. As for the title thing(Second Six Paths and Third..), it's just something Obito said, not really recorded in the tablet or anything, he simply meant Madara is the second to have a Six Paths Chakra while Nagato is the third. By this process I think Obito is the Fourth while Naruto and Sasuke shares the Fifth (?) place.