The term "proof-of-work" (with the dashes) is not used very often. But in all Bitcoin documentation it's written with the dashes. Now there is one Wikipedia ar

The term "proof-of-work" (with the dashes) is not used very often. But in all Bitcoin documentation it's written with the dashes. Now there is one Wikipedia article http://en.wikipedia.org/wiki/Proof-of-work_system http://en.wikipedia.org/wiki/Proof-of-work_system started by 'Julian Krause', so Satoshi might be Julian Krause.. ;)