My guess is Satoshi is Nick Szabo
"Nick Szabo is a computer scientist, legal scholar and
cryptographer known for his research in
digital contracts and
digital currency. He graduated from the
University of Washington in 1989 with a degree in
computer science.
[1]
The phrase and concept of "
smart contracts" was developed by Szabo with the goal of bringing what he calls the "highly evolved" practices of contract law and practice to the design of
electronic commerce protocols between strangers on the Internet.
[2][3] Smart contracts are a major feature of
cryptocurrencies[4][5] and the
E programming language.
[6]
Szabo influentially
[7] argued that a minimum granularity of
micropayments is set by mental transaction costs.
[8][9]
In 1998, Szabo designed a mechanism for a decentralized digital currency he called “bit gold”.
[10][11] Bit gold failed to garner widespread support, but has been called ‘a direct precursor to the
Bitcoin architecture.’
[12]"
https://en.wikipedia.org/wiki/Nick_Szabo
Szabo is now building on the Ethereum blockchain.