Originally Posted by Amuro
Hell yea veng I was thinking that too (zetsu orchestrating rins death). Not being funny but how do u know he was down there a year? Also I edited my first post with a link what u think about theses seals?
Well I'm guessing a year since the nine tails attack happened a little over a year from Obito's so called "death". If this is when Rin dies then Obito's attack on Konoha should follow shortly after within the next few months (manga time). Even given a years time hair simply doesn't grow that fast naturally. Explanation being the Zetsu flesh is accelerating Obito's growth which would include his hair.
I think the seals are probably there to hide the location from Sensory ninja.