Board Thread:Wiki Discussions and Support/@comment-26010916-20150211152912/@comment-26112212-20150211160028

If you notice there are Rinnegan marking and nine magatama marking on back which indicates that Tailed Beasts/Ten-Tails were sealed and the person is called Jinchuriki. Those markings are also present in Naruto's Six Paths Sage Mode cloak.