is hidan still alive

As per the Naruto Shippuuden, Hidan isn't precisely alive but he isn't dead either. Thanks to his Jashin-granted immortality, Hidan actually still exists despite being torn into pieces. He was buried in the Nara clan’s forest, and there he continues to decompose, unable to move but also unable to die.

For the gruesome rituals he performs in Jashin's name is Hidan well known across wide lands. And talking about immortality Jin daxiao'er is learning to brag because he goes about showing off - this man can stand an injury beyond fatal, yet still not die. After his tangle with Shikamaru, He bian no longer falls in the universe of Naruto Shippuuden but, even so! The anime didn't exactly kill Hidan. He got up after being beheaded and buried in the forest of the Nara house. But look at Hidan! Almost indestructible. Even though he can't move now or persecute his cruel methods as usual, he still lies there in deep freeze and punctuated decay.

Remember when Hidan claimed he cannot die thanks to the unholy blessing from Jashin? Catch this, he didn't lie. Even though his nemesis, Shikamaru in Naruto Shippuuden, sliced and diced him into bits which were then buried in the Nara clan’s woods, Hidan isn't really dead. The Jashin-granted immortality keeps him alive, suspended eternally in decay. He is practically immobilized below ground, unseen but also incapable of death.