Blockchain as a trust layer for more efficient finance market Dmitriy Golovyonkin, Elena V. Karanina, Larisa V. Kryuchkova, Svetlana V. Grin and Julia V. Davydova E3S Web Conf., 91 (2019) 08003 Published online: 02 April 2019 DOI: 10.1051/e3sconf/20199108003