I recently saw that HBO released a documentary claiming they finally discovered who Satoshi Nakamoto is, the mysterious creator of Bitcoin. The truth is, HBO's marketing isn't very explicit, but well, the topic reopened a debate that never dies in the crypto community.
The usual suspects remain the same: Hal Finney, Dorian Nakamoto, Nick Szabo, Adam Back. But there’s a name that in recent years has gained a lot of ground on prediction sites: Len Sassaman. And the more I read about this guy, the more convinced I am that he was at least someone incredibly important in the history that led to Bitcoin.
Len Sassaman’s story is honestly one of those that makes you think. He was a true cypherpunk, not one of those who just talk on Twitter. From a very young age, he got into cryptography, privacy protocols, P2P technologies. By 18, he was working with the fundamental internet protocols at the Internet Engineering Task Force. All self-taught, from a small town in Pennsylvania.
In 1999, he moved to the Bay Area and became a key figure in the cyberpunk community. He lived with Bram Cohen, the creator of BitTorrent. He participated in the legendary cypherpunk mailing list where Satoshi first announced Bitcoin. Other hackers remember him as brilliant, idealistic, willing to defend individual freedoms through technology.
Now, what’s interesting is that Len Sassaman wasn’t just an activist. He was a serious technical expert. He worked on PGP, Mixmaster, remailer technologies. These remailers, by the way, were direct precursors to Bitcoin. David Chaum invented them along with the idea of digital money. Remailers were servers that allowed anonymous message sending, and Bitcoin’s architecture is surprisingly similar: instead of forwarding messages, nodes transmit transactions.
In 2004, Len Sassaman achieved what he called “his dream job”: working as a doctoral researcher at COSIC, at the University of Leuven, Belgium. His supervisor was David Chaum, literally the father of digital currency. Few can say they worked directly with Chaum. Len did.
During those years, between 2008 and 2010, when Bitcoin was being developed, Len was increasingly active in financial cryptography. He attended specialized conferences, spoke about digital money, worked on Pynchon Gate, a project that evolved remailer technology for pseudo-anonymous information recovery in distributed networks. Basically, he was working on problems very close to what Bitcoin would solve.
There are fascinating details connecting Satoshi to Europe. Bitcoin’s whitepaper uses British spelling. The genesis block contains a headline from The Times dated January 3, 2009, the print edition only distributed in the UK and Europe. Satoshi’s posting times suggest he was a “night owl” in Europe. Len Sassaman was living in Belgium at that time.
But what hits me the most is the ending. In 2006, Len began experiencing non-epileptic seizures and functional neurological problems. That worsened a depression that had haunted him since adolescence. He felt he had to maintain a facade of superpowers, hide how serious his situation was. He kept working, writing articles, giving university talks like at Dartmouth, until months before his death.
On July 3, 2011, Len Sassaman took his own life. He was 31. Two months earlier, Satoshi sent his last message: “I’ve moved on to other things and may not be present anymore.” After that, Satoshi disappeared completely. Left behind 169 code commits, 539 posts in a year, and a fortune in Bitcoin that remains untouched.
Looking at Len Sassaman’s contribution history, I see someone with all the necessary skills. Academic cryptography, P2P network design, security architecture, privacy technologies, deep roots in the cyberpunk community. He had the ideological conviction and hacker spirit to build something anonymous and revolutionary.
I’m not saying this is certain. But there are too many coincidences. Too many connections. And what touches me most is that in every Bitcoin node, there’s an embedded obituary in the transaction data. It’s a monument to Len Sassaman. Maybe it’s a coincidence. Or maybe it’s the only way someone had to honor the one who truly built this.
What I do know is that we’ve lost too many hackers to suicide. Aaron Swartz, Gene Kan, Ilya Zhitomirskiy, James Dolan. And possibly Len Sassaman. All victims of depression, stigma, not receiving the help they needed. If the Bitcoin creator suffered like this, fought like this, and built something so revolutionary while falling apart inside... that says something about who we are as a community and what we’ve failed to recognize.