I'll be honest, I suspect that Satoshi was either Nick Szabo, Hal Finney, or both working together. We'll never know for sure though.

On Tue, 3 Jul 2018, 5:31 pm mark M, <write2mark1@gmail.com> wrote:
Georgi
That’s a great test 🙏👍

Tom
The personal identity of Satoshi over time as you say is very nuanced much like dpr of Silk road as multiple characters over time took the mantle of dpr 

But even with all of the dprs Ross Ulbricht was definitely doxed by the feds
Just worried there’s the very first og Satoshi who might still be around  

On Jul 3, 2018 at 8:49 PM, <Tom Busby> wrote:

Tbf there are no (spendable) accounts which are known to be Satoshi for sure.

There's the genesis block reward (not spendable due to a quirk in the protocol), the address Satoshi used to send the first transaction to Hal Finney (was this really Satoshi? We don't know for sure) and there are a bunch of blocks that we strongly suspect were mined by Satoshi due to their characteristics (mainly the incrementing nonce value).

Something signed with the genesis block reward address's private key would be best proof... But still not perfect, since we don't really even know if Satoshi was the same person over time, or if the same person operated all the Satoshi email/forum accounts.

I don't believe this new pretender really is Satoshi  though (or, hypothetically, any of the people who spoke as "Satoshi") because the writing style is way off. Satoshi was never a mystic. Satoshi never spoke in grand narratives either, just engineering pragmatism.

On Tue, 3 Jul 2018, 4:42 pm Georgi Guninski, <guninski@guninski.com> wrote:
On Tue, Jul 03, 2018 at 03:56:19PM +0200, Tom Busby wrote:
> Satoshi actually never, ever signed anything cryptographically.
>
No problem. As a proof of identity I request 1337.7331 bitcoins from one
of their accounts ;)