What blockchain means for the current society?: Expectations and hurdle of revolutionary technology leading the fourth industrial revolution

Abstract

Blockchain is a key technology of bitcoin. Bitcoin is a cryptocurrency system created based on the document released in 2008 by an unidentified programmer named Satoshi Nakamoto. It seems the appearance of bitcoin partly stems from frustration over centralized system which is inefficient and stays unchanged even though IT has been growing dramatically, as well as distrust on its information-handling capability. While using blockchain technology on social system would be able to generate a new world, robust and low cost, some information about blockchain are too optimistic, or/and generated by each party's standpoint not based on real business. The comprehensive and unbiased argument is necessary not only by technical aspect but also by social scientific point of view.