The question is: "Who owns and operates the central database?" There is little trust between organizations. Both from ethical and technical perspectives, I wou

The question is: "Who owns and operates the central database?" There is little trust between organizations. Both from ethical and technical perspectives, I wouldn't trust anyone to run a central clearing database for anything. I spent 10 years in the finance industry, overconfidence caused by incompetence is the hallmark of engineers in finance. Blockchain solves this problem by letting everyone participate in the infrastructure, and to violate the legal and ethical agreements, a majority of parties would need to collude.