Dear readers,
Maybe you don't know, but proof of work is very risky, because it depend on how the network works. Because China has a lots of nodes for Bitcoins and other currencies, it's better to switch to proof of stake.
You may heard that Ethereum is thinking to switch to proof of stake.
There is a reason why NEO is a fine currency, proof of stake.
And other well known coins are Ripple/NEM, they went down by exchange regulations.
Yours Sincerely,
Ancient Master