Blockchain is all BS, only innovation in this space is proof-of-work/mining to secure a network for payment and the incentive(token) and the game theory behind it. Everyone saying blockchain is interesting, bitcoin not sure – are fooling themselves IMO. All the banks and private sector hyping up private blockchain is utter non-sense and same with companies claiming to do authenticity or putting healthcare data on blockchain are either frauds or delusional. Their blockchain if centralized is meaningless, they can do this with databases/existing technology.