[tylersmith]

PoW is not from Hashcash and wasn't invented by Back. PoW was first formally conceptualized in 1992 in the paper "Pricing via Processing, Or, Combatting Junk Mail, Advances in Cryptology" by Cynthia Dwork and Moni Naor. Hashcash was proposed 5 years later, in 1997.

Satoshi is the first one to come up with a way to leverage PoW into a permissionless and global consensus mechanism instead of solely being a cryptoeconomic spam filter.

[bertil]

That is a ton of useful context (and likely a classic case of non-gender neutral attribution of scientific achievement, assuming Nakamoto’s male).

Do you have citation for that? Or even better, the patience to edit Wikipedia?

[jgh]

Thanks for the clarification, good to know.