Mining bitcoin by hand

I came across a very interesting post on Reddit the other day. My wife is really good at maths (having studied physics) and we have long argued about bitcoin, and what it’s doing. But despite evenings looking for a simple way of showing how the bitcoin algorithm is calculated. But no more, with this blog post discussing the maths behind bitcoin by San Francisco based Ken Shirriff.

His calculated total for this experiment? 0.67 hashes per day.