It's a few minutes (maybe a few hours) of CPU time, tops, especially if you're parallelizing and using an optimized SHA256 implementation. See the comments fro

It's a few minutes (maybe a few hours) of CPU time, tops, especially if you're parallelizing and using an optimized SHA256 implementation. See the comments from a year ago at: https://news.ycombinator.com/item?id=37465086 https://news.ycombinator.com/item?id=37465086