The probability of Come-From-Beyond (CfB), the founder of Qubic, being the same person as Satoshi Nakamoto, the founder of Bitcoin, has been gaining momentum, especially among the Qubic community. A lot of Qubicans have invested their time in researching and validating these claims.
In this piece, we will take a look at these claims. Please note that none of these claims emanate from CFB himself or Qubic.
TL;DR: There is no concrete proof that Come-From-Beyond (CfB) or anyone else is Satoshi Nakamoto; every story on anyone being Satoshi Nakamoto is all speculation. There is only one conclusive way to prove the identity of Satoshi: it is by signing his or her bitcoin wallet.
Argument for CFB as Satoshi Nakamoto
Here are some of the arguments we have seen.
Age Match: Satoshi said they were fascinated by cypherpunks at age 14, when the movement peaked in the early 90s; CFB was born in 1979, making him 14 in 1993.
Initials Address: Satoshi sent an email to Hal Finney on Jan 12, 2009, saying ‘he’ has included ‘his’ initials in a Bitcoin address; the very next day (Jan 13), an address starting with “1CFB” appeared. The full address is 1CFBdvaiZgZPTZERqnezAtDQJuGHKoHSzg.
The part of the email reads: “I just thought of something. Eventually there’ll be some interest in brute force scanning bitcoin addresses to find one with the first few characters customized to your name, kind of like getting a phone number that spells out something. Just by chance I have my initials.” This email was released by the Wall Street Journal here.
The Satoshi address can be found via blockchain.com, and the discussion about it can be found on Bitcointalk.
Just to be sure. He had started using the name Come-From-Beyond (CFB) before 2008, when Bitcoin was created. The first appearance of him using the name on the internet is as far back as 2002, which is 6 years before Bitcoin. The name was his email username credited in a research paper he published titled “Distributed computing with minimal costs,” in 2002.
“QUBIC” Address: Only 6 days after Bitcoin launched (Jan 9, 2009), Satoshi mined a block containing an address starting with “15ubic.” Bitcoin addresses use Base58 encoding, which skips some letters; in Base58, the 15th letter is “Q”, meaning “15ubic” effectively reads “Qubic”. Sergey Ivancheglo (CFB) later created the cryptocurrency project named “Qubic” in 2022.
This is the full address 15ubicBBWFnvoZLT7GiU2qxjRaKJPdkDMG. You can check and explore it at Blockchain.com
To make this more suspicious, while Qubic was launched in 2022, CFB first discussed “Qubic” by name publicly as early as 2012. You can read the 2012 post on Bitcointalk.
Satoshi Vanished, CFB Appeared: Satoshi publicly left Bitcoin in January 2011; CFB first appeared on Bitcoin Talk forums under that name at the end of 2011.
Antecedent hiding his identity: CFB secretly created the crypto project NXT in 2013 under the alias “BCNEXT” and only revealed it was him in 2017, this is proves he can hide identities long-term.
Before he revealed his identity in 2017, there were a lot of investigations by the community to know who BCNEXT is. For example, in this post on BitcoinTalk in 2014.
Here is proof of him signing to reveal his identity as BCNext.
Satoshi’s Vacation Gap: Satoshi mined the first Bitcoin block on January 3, 2009, then did nothing for 6 days until Jan 9. It is believed that someone named “Sergey” (linked to a proxy Satoshi used) was on a cruise from Jan 4 to Jan 8, 2009, exactly filling Satoshi’s 6-day gap.
Technical analysis of early Bitcoin code showed Satoshi used a specific proxy; this same proxy was linked to online activity by a “Sergey”.
Satoshi resumed mining (creating the “15ubic” block) on Jan 9, 2009, the day after “Sergey’s” cruise ended (Jan 8).
CFB Alias Meaning: His long-time alias “Come-from-Beyond” (CfB), which as proven above existed since 2002. If you try reversing and flipping the initials “CfB” it results in “BtC” (Bitcoin).
Both Addresses Satoshi’s: The “15ubic” address (Jan 9, 2009) and the “1CFB” address (Jan 13, 2009) are confirmed to be among the earliest blocks mined by Satoshi.
Pattern of “4”: Key events involve the number 4: the “15ubic” address is the 4th block, 4 days between the “15ubic” and “1CFB” addresses, Bitcoin’s 4-year cycles, and Qubic launching in the 4th cycle.
No Early Forum Presence: Despite actively mining Bitcoin in 2009, CFB didn’t use his known name on the main Bitcoin forum (Bitcoin Talk) until late 2011, implying he used a different name before then (like Satoshi did). This can be very suspicious, as most of the early Bitcoin miners used BitcoinTalk regularly.
Serious Early Work: CFB’s known early online writings (pre-Bitcoin) are described as serious and well-written, matching the tone of Satoshi’s communications.
Moving on: One thing Satoshi is famous for is ‘moving on’ from Bitcoin to other things, as he stated in his email. CFB is known to move on from projects he started. He moved on from BCNext after establishing it. Moved on from IOTA after establishing it. If this is a temperament or character issue, then it could be a link.
Treasure Trail Theory: The evidence (addresses, proxy link, timing, alias meaning) seems too coincidental and may have been intentionally left by CFB as clues.
Motivation to be Found: The pattern suggests CFB may have wanted people to eventually discover he is Satoshi.
Combined Evidence Weight: While no single point is 100% proof, the combination of the name links (“Qubic”, “CFB”), the timing (disappearance/appearance, vacation), the proven secret identity, and the technical links (proxy, addresses) creates a compelling case for many, especially those in the Qubic community.
The key people who have invested time in tracking these possibilities are The Great Crypto Escape and CfB=Satoshi.
Argument against CFB as Satoshi Nakamoto
Others have compelling possibilities: Realistically speaking, while the argument for, maybe strong, CFB is not the only one. Many others have the same compelling possibilities of being Satoshi. For example, in the same email published by the Wall Street Journal, Satoshi wrote: “You can send to my Bitcoin address if you want to, but you won’t get to see the full transfer sequence: 1NSwywA5Dvuyw89sfs3oLPvLiDNGf48cPD.”
If it is true that he embedded his name in his wallet address, this particular address has the initials of NS, which could mean Nick Szabo? Or Sergey Nazarov? Or maybe it means Nakamoto Satoshi. The point is, if you look deep enough, there are so many compelling reasons why a couple of people could be Satoshi.
Complete denial: Despite these claims, CFB has never said he is Satoshi. He has constantly denied it and even makes fun of the idea.
Language Differences: Satoshi wrote in flawless, native-level English with deep cultural nuance. Some of CFB’s known writings show non-native English patterns (grammar/idiom quirks).
Coding Style Clash: Satoshi’s Bitcoin code prioritized simplicity and restraint. CFB’s later projects (IOTA, Qubic) are notably complex and experimental, which can mean different technical philosophies.
Personality Mismatch: Satoshi was very private, avoided drama, and vanished completely. CFB is highly vocal, has been in public disputes, and promotes his projects actively.
The Motivation Question: Satoshi gave away Bitcoin freely and abandoned it without seeking profit. He has billions untouched. CFB has launched multiple for-profit cryptocurrency ventures.
Focus: Satoshi focused solely on Bitcoin as digital cash. CFB’s work (NXT, IOTA, Qubic) explores radically different tech (PoS, DAGs, AI) not emphasized in Bitcoin’s design.
The “15ubic” Coincidence: Generating a vanity address with “15ubic” by random chance, while VERY unlikely, is statistically possible among early blocks. It doesn’t prove ownership by CFB.
Proxy Evidence Weakness: The link between a “Sergey” using a specific proxy and Satoshi is circumstantial. Many people used proxies, and “Sergey” is a common name.
No Direct Early Link: Despite mining early Bitcoin, there’s no verifiable evidence placing CFB (under any known alias) interacting directly with Satoshi or the core development team before 2011.
Alternative Candidates: Other individuals (like Hal Finney, Nick Szabo, or Dave Kleiman) have stronger technical, linguistic, or circumstantial links to Satoshi proposed by researchers.
Community Skepticism: Most Bitcoin historians and core developers find the CFB=Satoshi theory unconvincing due to the mismatches in style, language, and technical approach.