https://news.ycombinator.com/item?id=8552005 https://news.ycombinator.com/item?id=8552005 seems to present a solution, which works but may timeout slowly and do

https://news.ycombinator.com/item?id=8552005 https://news.ycombinator.com/item?id=8552005 seems to present a solution, which works but may timeout slowly and doesn't handle Byzantine failure (hopefully unlikely)