Ever since Satoshi Natamoto, the anonymous inventor of Bitcoin, disappeared in 2011 there has been no shortage of theories about his identity.

Hal Finney, Dorian Satoshi Nakamoto, Nick Szabo and Craig Wright have all be cited as possible contenders (even if CSW is the main person pushing that last theory.)

Now, after months of research Quantum Economics’ Director of Gamefi Research Gerald Votta thinks that he has found the answer to Satoshi’s true identity — Canadian cryptographer James A. Donald. In a new research article piece on Nov. 17 Votta outlined intriguing circumstantial evidence he believes proves the link.

Donald was the very first person to comment on the Bitcoin White Paper in 2008, which piqued Votta’s interest. Votta wrote that the “almost instantaneous” timing was “very suspicious,” and led him to “look further into his [Donald’s] life.”

He explained to Cointelegraph:

“If you look at the timing, Donald comments like minutes after the Bitcoin White Paper is put up and ask such a specific question to Satoshi — How could you read the White Paper, analyze it, and come up with this amazing scaling question in like three minutes? It’s almost impossible.”

Votta wrote that Donald also fitted the bill down to a tee: “Not only did Donald have an advanced understanding of computers, programming, and cryptography, he was well versed in economics, history, and law. It would be his own words, however, which helped me connect him to Satoshi Nakamoto.”

This is not the first time the theory has come up. Back in 2014, a forum post by user Bruno Kucinskas on a Bitcoin forum also pointed to the same evidence about the speedy reply sparking a debate. One user argued the timestamp varies between different archives, and another suggested the time zones were different which would call into question the length of time between the post and the reply.

There is also the possibility that Satoshi and Donald spoke privately before posting the question and response publicly. Votta told Cointelegraph that he had read all these counterarguments, but that his evidence “speaks for itself”. He noted that the website for Donald’s project Crypto Kong alone “is literally Bitcoin incarnate.”

Votta’s research delved into Crypto Kong, a software program that uses elliptic curve cryptography to sign documents electronically. “This particular program is eerily familiar to the foundational basis of Bitcoin,” he wrote, with Votta’s blog post delving into similarities between the information on the site and the White Paper.

The echeque website contains the details for Crypto Kong and “echeque.com” was the domain of Donald’s email “james@echeque.com”. Donald emailed Satoshi from this address on at least one occasion, said Votta.

Adding to the evidence, on the main Crypto Kong page on the echeque website, there is a minimized example of Kong on the right side of the screen, with a digital signature which matches the one sent to Satoshi Nakamoto up to the thirty-fourth character.

So why would Satoshi would carry on a conversation with himself from two separate addresses if he was, in fact, Donald. In Votta’s opinion, this tactic was a ploy to “maintain anonymity and to spark contrarian view on Bitcoin.”

He also supports his claim with evidence gathered by analyzing the written language Satoshi employed.“[Donald’s] communications contained language that made me think of Satoshi,” he wrote.

Related: From Dorian Nakamoto to Elon Musk: The Incomplete List of People Speculated to Be Satoshi Nakamoto

He claims that Satoshi’s “excellent grasp of not only the English language, but also North American English” means that he likely was born, grew up or studied either in the U.S., U.K. or a former British colony.

For example, Satoshi uses the word “Chancellor” and British spelling of the word “favour.”

Likewise, he was able to connect Satoshi to Donald through the peculiar use of the word “Chaumian.” Donald used the word in an email response about Digicash patents on Aug. 3, 2003, and Satoshi also used it in an email response on Feb 11, 2009.

“With that, the mystery was solved. The odds of two individuals having these same credentials, a clear grasp of North American language and culture, and sharing almost the same White Paper is astronomically low,” said Votta.

Quantum Economics founder Mati Greenspan said that Gerard had been working on the research for months, along with VP of content Charles Bovaird who “ensured proper research practices and information sourcing.”

The reaction since the post was published had been “outstanding” he said.

“It’s by far one of our most popular research pieces to date and we’re still getting incredible feedback from industry vets.”