In Praise of Bitcoin, by Ben Hunt

One evening a few weeks ago, I was on a Zoom call with a bunch of academic, think tank and Fed economists for a Bitcoin discussion. A lot of names you’d know if you’re familiar with those circles, the most famous one being Paul Krugman (who, btw, I found to be charming, genuinely open-minded, and surprisingly humble about the entire enterprise of academic economics). I had been invited to be on the anti-Bitcoin ‘side’ of the discussion, but they needn’t have bothered. Because there was no pro-Bitcoin side.

Krugman led with a simple question – what’s the use case for Bitcoin? Not a theoretical thing, but an actual use of Bitcoin to solve a problem in the real world? – which led to an hour-long, extremely earnest and altogether unsatisfying conversation about financial transfers out of Venezuela, trade settlement and securitization on a blockchain, and Taylor Swift’s ability to control the scalper/resale market for her concert tickets.

All of which are real things. All of which are interesting things. All of which are good things. But none of which are what got 20 busy people on a Zoom call at 8 pm on a Thursday night.

None of which ARE Bitcoin.

Now, to be fair, there were no old-school Bitcoin maximalists on the call, or if there were, they were too intimidated to make an Austrian economics, hard money, neo-goldbug, Bitcoin-is-the-inevitable-global-reserve-currency argument in front of Paul Krugman. LOL.

But I finally couldn’t take it anymore.

Is this really why we got on the phone tonight? To talk about a novel form of digital rights management? To talk about payment transfers out of authoritarian third-world countries? Are these REALLY our questions about Bitcoin?

Answer: of course not. What got these academic, think tank and government economists on the phone that night was Bitcoin trading at $50,000. The question that everyone truly cared about, but a question that everyone danced around for the better part of an hour, was this: Is there any there there in the price of Bitcoin?

To which everyone, including the supposedly pro-Bitcoin contingent, said no. Not just no, but no, no, no. The price of Bitcoin was an illusion. The price of Bitcoin was the madness of crowds. The price of Bitcoin had no connection to any fundamental economic activity, just like gold had no connection to any fundamental economic activity, and thus – to this audience – could have no inherent value by definition.

I think this is very wrong. And I’ll tell you, like I told this Zoom call, why I think there is a lot of inherent value in Bitcoin.

Because Bitcoin is good art.

Or better yet, because Bitcoin is elegant and beautiful fashion, sitting at the intersection of art and commerce.

Most importantly, because owning Bitcoin has been an authentic expression of identity, an extremely positive identity of autonomy, entrepreneurialism, and resistance to the Nudging State and the Nudging Oligarchy.

I’ve been saying that Bitcoin is art for more than six years, from The Effete Rebellion of Bitcoin (Feb. 2015) to Too Clever By Half (Feb. 2018, my most popular note ever!) to Riding the Cyclone (June 2018) to The Spanish Prisoner (July, 2019), and it’s been a very frustrating place to be. Frustrating because public stances on Bitcoin are almost immediately turned into cartoons – either you’re the grumpy grandpa “Bitcoin is worthless!” cartoon or you’re the laser-eyed cultist “Bitcoin will be the world’s reserve currency!” cartoon, with no room in between.

The value-deniers, like the Zoom crowd the other night, think I’m agreeing with them when I say that Bitcoin is art. I’m not. The true-believers think I’m trolling them when I say that Bitcoin is art. I’m not. The creation of good art is – in my opinion – what we are put on this earth to do. It is our highest calling. It is my highest praise.

There is lasting value in good art, because it is a very scarce thing and it never gets used up.

Bitcoin is itself an NFT, a unique digital art work instantiated on a blockchain. It’s the most valuable NFT in the world. I don’t mean a Bitcoin, obviously that’s a fungible thing. I mean THE Bitcoin … the 21 million Bitcoins that make up the Bitcoin Project. The notion that Bitcoin would ever “go to zero” is ludicrous. Good art is always worth something. But how do we measure that something … how do we put a price on the value of good art at this particular moment in time? It’s a REALLY tough question.

There are no cash flows to art. There are no fundamentals to art. There is no “use case” to art.

There is only story. There is only narrative. There is only common knowledge – what everyone knows that everyone knows – about the value of art, common knowledge that emerges from our social interaction with story and narrative.

In every respect that matters, Bitcoin IS Epsilon Theory.

The Epsilon Theory Manifesto (June 2013)

Our times require an investment and risk management perspective that is fluent in econometrics but is equally grounded in game theory, history, and behavioral analysis. Epsilon Theory is my attempt to lay the foundation for such a perspective.


So yes, I’ve been saying that Bitcoin is art for a long time now. But what I haven’t been saying – or at least not as loudly – is that bit about identity, and that’s the part that needs to be shouted today. So here it is again, this time a little louder …

Most importantly, owning Bitcoin has been an authentic expression of identity, an extremely positive identity of autonomy, entrepreneurialism, and resistance to the Nudging State and the Nudging Oligarchy.

This, too, IS Epsilon Theory.

Clever Hans (Oct. 2017)

Trainers don’t break a wild horse by crushing its spirit. They nudge it into willingly surrendering its autonomy.

Because once you take the saddle, you’re gonna take the bit.


Why am I shouting about identity?

Because the artistic Bitcoin identity I admire and value has been subverted by the neutering machine of Wall Street and the regulatory panopticon of the US Treasury Dept.

Because what made Bitcoin special in the first place is nearly lost, and what remains is a false and constructed narrative that exists in service to Wall Street and Washington rather than in resistance.


Yes, the Nudging State and the Nudging Oligarchy strike back. They always do when it comes to money. Not with imperial stormtroopers or legislative sanction, but with golden handcuffs and administrative surveillance.

It’s not that the State and the status quo institutionalization of capital – call it Wall Street, for short – have any desire to ban Bitcoin. Why would they do that? No, far better to accommodate and swallow Bitcoin, like they have every other financial “innovation” for the past 1,000 years. Far better to neuter the censorship-resistant and anonymity-preserving aspects of Bitcoin, and turn it into another gaming table in the Wall Street casino.

In my dystopian vision, Bitcoin isn’t banned or criminalized. Pfft. That’s a rookie, weak State move. No, I see a future where everyone buys Bitcoin. Where you are encouraged to buy Bitcoin. Where Bitcoin is sold to you morning, noon and night. Where normie economists get on conference calls late at night because they’re Bitcoin price-curious.

Except it’s not really Bitcoin.

Instead, it’s Bitcoin! TM — a cartoon version of the OG Bitcoin, either a Wall Street-abstracted representation of the price of Bitcoin or a government-painted version of Bitcoin in Dayglo orange. Either way — abstracted or painted — your Bitcoin! TM is trackable and traceable, fully KYC and AML and FBAR and SWIFT and every other US Treasury acronym-compliant. Either way, your Bitcoin! TM has all the revolutionary potential of a bumper sticker and all the identity signaling power of a small tattoo on your upper arm.

Bitcoin!TM doesn’t stick it to the Man … Bitcoin!TM IS the Man.

Welcome to the MMXXI Hunger Games.

Hunger Games (Feb. 2021)

You’ve been told that the odds are ever in your favor. You’ve been told this for your entire life.

More and more, you suspect this is a lie.

This is no “democratization” of Wall Street. You’ve been played. Again.

The abstracted version of Bitcoin! TM is a Wall Street specialty.

What is Bitcoin! TM in abstracted form? It’s a securitization or representation of Bitcoin ownership that promises the price appreciation of Bitcoin without the hassle of Bitcoin ownership. It’s a casino chip that represents the price of Bitcoin. Michael Saylor, for example, is only too happy to sell you a MicroStrategy casino chip. Or maybe you’d prefer to play on the Canadian crypto ETF felt? Or try your luck at the wheel of a Morgan Stanley private fund?

Why does Wall Street loooove abstracted forms? Because there are no fundamental limits to how many of these Bitcoin! TM casino chips Wall Street can sell. It doesn’t matter if all the OG Bitcoin HODLers keep on HODLing. It doesn’t matter if the vast majority of all the Bitcoins ever mined never get caught up in the Wall Street neutering machine. There are an infinite number of games that can be created around the price of Bitcoin as a reference point, just like there are an infinite number of bets that can be made on a football game. There are an infinite number of rehypothecations and derivative representations that can be made off the millions of margined Bitcoins that have already been captured by Wall Street-custodied accounts.

The only limiting factor on how many of these Bitcoin! TM casino chips Wall Street can sell is the effectiveness of the narrative they have created around Bitcoin itself, that Bitcoin is a “hedge against inflation” and a “store of value” that is uniquely positioned to “protect your portfolio” against “dollar debasement” because it is “hard money” immune to “money printer go brrrr”.

It’s rather artistic in and of itself, right? Selling an unlimited number of Bitcoin! TM casino chips off a meme slamming unlimited fiat money printing? Creating an unlimited number of entertaining market games and venues where we can use our Bitcoin! TM casino chips?

If these narratives and casino games sound familiar, it’s because this is exactly the same process of abstraction, securitization and leverage that Wall Street has been using for the past twenty years with precious metals.

What is the GLD ETF? It’s gold! TM. What is a unit in an ETF basket of gold miner stocks? It’s gold! TM. They and their many kin are securitizations of gold ownership that promise the price appreciation of gold without the hassle of gold ownership. They are casino chips that represent the price of gold.

I’m old enough to remember when people bought and sold gold coins in private transactions. I guess we’d call that peer-to-peer today. I’m old enough to remember when well-meaning people would have earnest conversations about gold as a reserve currency, just like well-meaning people today have those earnest conversations about Bitcoin. I’m old enough to remember how quickly those conversations died out after State Street launched GLD in 2004 and took in a billion dollars in a few days. Turns out people didn’t really want the grumpy grandpa identity of owning physical gold in some Mad Max world as much as they wanted gold! TM in their financial portfolios as an abstracted insurance policy against central bank error.

It’s exactly the same with Bitcoin! TM today.

You think “institutional adoption” is driven by a spirit of personal autonomy, entrepreneurialism, and resistance to the Nudging State and Nudging Oligarchy? You think Paul Tudor Jones and Mike Novogratz want to BITFD? LOL.

The ONLY difference to Wall Street between gold and Bitcoin is that gold! TM is tired and Bitcoin! TM is wired.

The king is dead. Long live the king!

This is the artistic genius of Wall Street – the creation of new product to trade and new assets to manage, all through the alchemy of securitization and leverage. This is Flow.



It’s like Ash said about the chest-bursting xenomorph in Alien – you may not admire the creature itself, but you gotta admire its purity. Unclouded by conscience, remorse, or delusions of morality. Yep, that’s Wall Street.

Ditto the US Treasury.

If there’s a Western governmental institution that is more unclouded by conscience, remorse, or delusions of morality than the US Treasury, I am unaware of what that institution might be. But unlike Wall Street, which is motivated by Flow, the US Treasury has an entirely different (but highly compatible!) goal.

The goal of the US Treasury is to see all of the money in the world.



That’s really all it is. That’s what Anti-Money Laundering (AML) regulations are all about. That’s what Know Your Client (KYC) regulations are all about. That’s what Report of Foreign Bank and Financial Accounts (FBAR) regulations are all about. That’s what the Treasury-led Society for Worldwide Interbank Financial Telecommunications (SWIFT) is all about. That’s what the Bank Secrecy Act (BSA) is all about. None of these programs are really about taxes. None of these programs are really about catching crooks or fighting terrorists. All of these programs are really about information for information’s sake regarding the greatest source of power in the world and the raison d’etre of every government on Earthmoney.

The US Treasury is the Eye of 

— a gigantic panopticon tower that sweeps the world with its unblinking gaze, seeking out the owners of power, i.e. money.

The US Treasury can’t see Bitcoin. It can, however, see Bitcoin! TM.

The giant all-seeing eye of the US Treasury is primarily built on two regulatory structures — the Bank Security Act (BSA) to compel transparency and reporting by financial institutions on their clients and themselves, and the Report of Foreign Bank and Financial Accounts (FBAR) system to compel transparency and reporting by individuals on their financial institutions and themselves. There are a dozen more acronyms and programs involved here, all overseen by Treasury’s Financial Crimes Enforcement Network (FinCEN), but to keep things simple I’m going to refer to all of this as the BSA/FBAR regulatory panopticon.

Everything in plain text in the next two paragraphs is regulatory policy as it currently stands with the BSA and FBAR. Everything in bold italics is a new policy proposed in the past few months and expected to go into effect shortly. Taken together, I think it will be clear how Treasury uses the combined BSA and FBAR instruments to mark your Bitcoin with a DayGlo orange fluorescent paint and create their highly visible version of Bitcoin! TM.

BSA — If you are in the business of money in any way, shape or form (what Treasury calls a “money transmitter”), and you do any of that business in the US, then you are subject to the Bank Secrecy Act. Note that this money transmitter designation and BSA jurisdiction explicitly includes peer-to-peer exchanges that work with self-hosted wallets. If you are subject to the BSA, then it is your affirmative obligation to collect complete identifying information regarding clients who transmit or receive more than $3,000 over your systems, and to collect and immediately report to Treasury complete identifying information regarding clients who transmit or receive more than $10,000 over your systems – including any cryptocurrency (“convertible virtual currency”) transmitted to or from a self-hosted wallet.

FBAR — If you are a US entity (citizen or resident, any type of US-registered corporate or trust structure, etc.) and you have any sort of account (banking, securities, custodial, etc.) with any non-US money transmitter, anywhere in the world, and at any time during the course of the year, you have in the aggregate across all accounts more than $10,000 in value in those accounts – including the value of any cryptocurrency holdings (“convertible virtual currency”) in those accounts – then it is your affirmative obligation to report complete identifying information regarding each of those accounts to the IRS in a Report of Foreign Bank and Financial Accounts (FBAR).

I think the intent here is crystal clear. Whatever rules were in place yesterday regarding transfers of dollars or rubles or pesos through US-touching money transmitters or by US entities … well, now those exact same rules are going to apply to Bitcoin. As soon as your virtual currency holdings land in any financial institution that cooperates with or does business in or is regulated by the United States … BAM! your Bitcoin is painted DayGlo orange and becomes the Treasury-preferred form of Bitcoin! TM.

When these regulations go into full effect, as I understand them, the only remaining safe harbor for keeping your Bitcoin hidden from the BSA/FBAR Eye of Sauron will be to maintain a self-hosted wallet that never connects with a money transmitter that does business in the US.

That’s a safe harbor for the moment, but ultimately nothing is safe from the Eye of Sauron. While 2019 guidance explicitly states that “a person conducting a transaction through an unhosted wallet to purchase goods or services on their own behalf is not a money transmitter”, and so is not subject to the Bank Secrecy Act directly, the December, 2020 proposed rule-making doc also included this doozy of a comment.

The Treasury Department has previously noted that “[a]nonymity in transactions and funds transfers is the main risk that facilitates money laundering.”

The Financial Action Task Force (“FATF”) has similarly observed that the extent to which anonymous peer-to-peer permit transactions via unhosted wallets, without involvement of a virtual asset service provider or a financial institution, is a key potential AML/CFT risk in some CVC systems.

FATF members have specifically observed that unregulated peer-to-peer transactions “could present a leak in tracing illicit flows of virtual assets,” particularly if one or more blockchain-based CVC networks were to reach global scale.

Importantly, as explained below, while data contained on some blockchains are open to public inspection and can be used by authorities to attempt to trace illicit activity, FinCEN believes that this data does not sufficiently mitigate the risks of unhosted and otherwise covered wallets.

That last paragraph doesn’t mince words. Even if the blockchain facilitating a crypto currency allows for “authorities” to trace transactions, “the risks of unhosted and otherwise covered [i.e., hidden from the Eye of Sauron] wallets” are too great to let stand. LOL. I think we all see where this is going.

The response I get from the Bitcoin and larger crypto community to what seems to me to be the clear intent and path of Treasury regulations is always this: well, good luck enforcing that!

Unfortunately, that’s the evil artistry of panopticons like the Eye of Sauron or Treasury’s BSA/FBAR regulatory structure: we are driven to willingly enforce their discipline on ourselves.

A panopticon is an institutional structure that creates a permanent feeling of being watched. Maybe you are and maybe you aren’t at any given moment. But you’re never sure that you’re NOT being watched. And if you ARE being watched, then you better ‘fess up and cooperate before you get your head stuck on an orc’s pike. Did I mention that the penalty for a willful failure to make an FBAR report was the greater of $100,000 or 50% of the unreported foreign assets?

Moreover, a panopticon structure allows you to see the behavior of others. And they of you. If the discipline imposed by the Watcher includes obligations to snitch — and that’s exactly what the Treasury requires here, with obligations on money transmitters to report on clients, and obligations on clients to report on money transmitters — a panopticon sets up a classic Prisoners Dilemma game, where the only equilibrium is for both the money transmitter and the client to volunteer information about the other.

Once you start looking for panopticons in our modern world, you will find them everywhere. And of course there’s an Epsilon Theory note on this.

Panopticon (March 2014)

“Transparency” has little to do with freedom and everything to do with control, and the more “radical” the transparency the more effective the control … the more willingly and completely we police ourselves in our own corporate or social Panopticons.

You’re not opposed to “transparency” are you? Why would you be opposed to “transparency” unless you have something to hide? You’re not a … a … terrorist-lover, are you? No, I didn’t think so.

It’s not just that Wall Street and the US Treasury dominate policy.

Far more perniciously, they also dominate narrative.

And that’s why I’m writing this note.

Frankly, I doubt that the policy battle can be won. This has been my view since I first started writing about Bitcoin, and nothing has happened to change my mind. On the contrary, Treasury’s moves to make crypto visible and controllable have happened faster than I thought they would. I mean, I’m hopeful that we are at least at some point of policy equilibrium with the proposed rule changes to BSA and FBAR, an equilibrium that will at least allow self-hosted crypto wallets to exist in peace. But hope, unfortunately, is not a strategy.

Too Clever By Half (Feb 2018)

The inevitable result of financial innovation is that it ALWAYS ends up empowering the State. When too clever by half coyotes misplay the meta-game, that’s all the excuse the State needs to come swooping in.

Just as they did with Bear and Lehman in 2008. Just as they’re doing with Bitcoin today.

So, no, I don’t think I can help much in the policy battle.

But I think I can help a lot in the narrative battle.

Or rather, the Narrative Machine can help.

Inception (April 2020)

The systematic study of narrative, what we call the Narrative Machine, can be used for analysis, yes, but also as an active instrument to reclaim our autonomy of mind and our generosity of spirit.

Everything else is commentary.

I know you don’t believe me, but we’re going to change the world … you and me.


The Bitcoin narrative must be renewed.

Bitcoin has been an authentic expression of identity, a positive identity of autonomy, entrepreneurialism, and resistance to the Nudging State and the Nudging Oligarchy.

It can be again.


Wall Street and Treasury are running a psyop with their creation of Bitcoin! TM, and it’s necessary to think about Bitcoin in those psyop/narrative terms if the goal is to preserve an active community with an identity of autonomy, entrepreneurialism, and resistance to the Nudging State and the Nudging Oligarchy in the context of Bitcoin specifically and crypto more generally.

That’s my goal, anyway.

I’m not in this for Bitcoin-as-global-reserve-currency. I’m not in this for Number Go Up. I’m not in this for “store of value” against that gosh darn “dollar debasement”. I’m not in this for Flow. I’m not opposed to any of those things, and I don’t think you’re a Bad Person if those are your things. They’re just not my things. I’m in this for Bitcoin as good art and the inspiration it provides to a community that shares my values and goals for making a better world.

Phase 1 of this anti-psyop campaign is to identify Schelling points (game solutions that people arrive at by default in the absence of direct communication … also called focal points) so that people who share this goal of community organization and narrative reclamation can find each other.

I think that one of these Schelling points is maintaining a self-hosted wallet and the capacity for peer-to-peer connections away from the Eye of Sauron.

Starting today, Epsilon Theory will accept Bitcoin as payment for all annual subscriptions through our BTCPay server. It’s a plain vanilla Raspberry Pi set-up. We’re not holding ourselves out as crypto mavens. We’re signaling an identity of autonomy, entrepreneurialism, and resistance to the Nudging State and the Nudging Oligarchy in the context of Bitcoin.

Phase 2 of this anti-psyop campaign is to use the Narrative Machine to measure and visualize the narrative archetypes and story arcs of Bitcoin! TM. In exactly the same way that there are only, say, a dozen archetypal scripts for every TV sitcom episode ever filmed, or in exactly the same way that there are three acts to every modern movie screenplay, so is there an underlying structure and a finite number of underlying archetypes to the media coverage of every market entity.

We believe that we can measure these narrative structures and archetypes as they apply to Bitcoin! TM, and map those structural dynamics to market behaviors.

Seeing is believing, and I think there is no better way to prove the existence of Bitcoin! TM, in both its Wall Street-abstracted and its Treasury-painted form, than to show the psyop in action. I think this sort of analysis and visualization will get a lot of people who would otherwise be quick to dismiss our claims to take a fresh look at the ways in which we have been nudged.

Phase 3 of this anti-psyop campaign is simply to call things by their proper names. That starts with locating the value of Bitcoin in its elegant art and its ability (like all elegant art) to inspire great things away from the art itself. Yes, great things away from Bitcoin itself, so that even if Bitcoin! TM dominates financial markets (which it will), the story arc of Bitcoin doesn’t end there, but generates a thousand new initiatives to improve our world.

We don’t have to tell a story of price. We don’t have to tell a story of apocalypse. We don’t have to scold or “educate”.

We can tell an Old Story of autonomy of mind and generosity of spirit within a new context of Bitcoin and crypto.

You know, a couple of thousand years ago, a really smart guy — the most subversive, revolutionary guy you can imagine — had a good line. Render unto Caesar what is Caesar’s.

Bitcoin! TM definitely belongs to Caesar. It’s part of his game. But Bitcoin doesn’t have to be. It can be part of our game. Still. Again. And that will change everything.

Bitcoin is the greatest thing to happen to the FBI: BlockTower’s Bucella

The FBI and Department of Justice were able to recover most of the bitcoin paid in the Colonial Pipeline hack. Michael Bucella, BlockTower general partner, and CNBC’s Eamon Javers join ‘Power Lunch’ to discuss the retrieval of the money and what it could mean for the regulatory response of cryptocurrencies going forward.

Pipeline Investigation Upends Idea That Bitcoin Is Untraceable

The F.B.I.’s recovery of Bitcoins paid in the Colonial Pipeline ransomware attack showed cryptocurrencies are not as hard to track as it might seem.

When Bitcoin burst onto the scene in 2009, fans heralded the cryptocurrency as a secure, decentralized and anonymous way to conduct transactions outside the traditional financial system.

Criminals, often operating in hidden reaches of the internet, flocked to Bitcoin to do illicit business without revealing their names or locations. The digital currency quickly became as popular with drug dealers and tax evaders as it was with contrarian libertarians.

But this week’s revelation that federal officials had recovered most of the Bitcoin ransom paid in the recent Colonial Pipeline ransomware attack exposed a fundamental misconception about cryptocurrencies: They are not as hard to track as cybercriminals think.

On Monday, the Justice Department announced it had traced 63.7 of the 75 Bitcoins — some $2.3 million of the $4.3 million — that Colonial Pipeline had paid to the hackers as the ransomware attack shut down the company’s computer systems, prompting fuel shortages and a spike in gasoline prices. Officials have since declined to provide more details about how exactly they recouped the Bitcoin.

Yet for the growing community of cryptocurrency enthusiasts and investors, the fact that federal investigators had tracked the ransom as it moved through at least 23 different electronic accounts belonging to DarkSide, the hacking collective, before accessing one account showed that law enforcement was growing along with the industry.

That’s because the same properties that make cryptocurrencies attractive to cybercriminals — the ability to transfer money instantaneously without a bank’s permission — can be leveraged by law enforcement to track and seize criminals’ funds at the speed of the internet.

Bitcoin is also traceable. While the digital currency can be created, moved and stored outside the purview of any government or financial institution, each payment is recorded in a permanent fixed ledger, called the blockchain.

That means all Bitcoin transactions are out in the open. The Bitcoin ledger can be viewed by anyone who is plugged into the blockchain.

“It is digital bread crumbs,” said Kathryn Haun, a former federal prosecutor and investor at venture-capital firm Andreessen Horowitz. “There’s a trail law enforcement can follow rather nicely.”

Ms. Haun added that the speed with which the Justice Department seized most of the ransom was “groundbreaking” precisely because of the hackers’ use of cryptocurrency. In contrast, she said, getting records from banks often requires months or years of navigating paperwork and bureaucracy, especially when those banks are overseas.

ImageDeputy U.S. Attorney General Lisa Monaco, center, announcing the recovery of part of the Colonial Pipeline ransom on Monday.
Credit…Pool photo by Jonathan Ernst

Given the public nature of the ledger, cryptocurrency experts said, all law enforcement needed to do was figure out how to connect the criminals to a digital wallet, which stores the Bitcoin. To do so, authorities likely focused on what is known as a “public key” and a “private key.”

A public key is the string of numbers and letters that Bitcoin holders have for transacting with others, while a “private key” is used to keep a wallet secure. Tracking down a user’s transaction history was a matter of figuring out which public key they controlled, authorities said.

Seizing the assets then required obtaining the private key, which is more difficult. It’s unclear how federal agents were able to get DarkSide’s private key.

Justice Department spokesman Marc Raimondi declined to say more about how the F.B.I. seized DarkSide’s private key. According to court documents, investigators accessed the password for one of the hackers’ Bitcoin wallets, though they did not detail how.

The F.B.I. did not appear to rely on any underlying vulnerability in blockchain technology, cryptocurrency experts said. The likelier culprit was good old-fashioned police work.

Federal agents could have seized DarkSide’s private keys by planting a human spy inside DarkSide’s network, hacking the computers where their private keys and passwords were stored, or compelling the service that holds their private wallet to turn them over via search warrant or other means.

“If they can get their hands on the keys, it’s seizable,” said Jesse Proudman, founder of Makara, a cryptocurrency investment site. “Just putting it on a blockchain doesn’t absolve that fact.”

The F.B.I. has partnered with several companies that specialize in tracking cryptocurrencies across digital accounts, according to officials, court documents and the companies. Start-ups with names like TRM Labs, Elliptic and Chainalysis that trace cryptocurrency payments and flag possible criminal activity have blossomed as law enforcement agencies and banks try to get ahead of financial crime.

Their technology traces blockchains looking for patterns that suggest illegal activity. It’s akin to how Google and Microsoft tamed email spam by identifying and then blocking accounts that spray email links across hundreds of accounts.

“Cryptocurrency allows us to use these tools to trace funds and financial flows along the blockchain in ways that we could never do with cash,” said Ari Redbord, the head of legal affairs at TRM Labs, a blockchain intelligence company that sells its analytic software to law enforcement and banks. He was previously a senior adviser on financial intelligence and terrorism at the Treasury Department.

Several longtime cryptocurrency enthusiasts said the recovery of much of the Bitcoin ransom was a win for the legitimacy of digital currencies. That would help shift the image of Bitcoin as the playground of criminals, they said.

“The public is slowly being shown, in case after case, that Bitcoin is good for law enforcement and bad for crime — the opposite of what many historically believed,” said Hunter Horsley, chief executive of Bitwise Asset Management, a cryptocurrency investment company.

In recent months, cryptocurrencies have become increasingly mainstream. Companies such as PayPal and Square have expanded their cryptocurrency services. Coinbase, a start-up that allows people to buy and sell cryptocurrencies, went public in April and is now valued at $47 billion. Over the weekend, a Bitcoin conference in Miami attracted more than 12,000 attendees, including Twitter’s chief executive, Jack Dorsey, and the former boxer Floyd Mayweather Jr.

As more people use Bitcoin, most are accessing the digital currency in a way that mirrors a traditional bank, through a central intermediary like a crypto exchange. In the United States, anti-money laundering and identity verification laws require such services to know who their customers are, creating a link between identity and account. Customers must upload government identification when they sign up.

Ransomware attacks have put unregulated crypto exchanges under the microscope. Cybercriminals have flocked to thousands of high-risk ones in Eastern Europe that do not abide by these laws.

Image
More than 12,000 people attended Bitcoin 2021 in Miami last week.
Credit…Alfonso Duran for The New York Times

After the Colonial Pipeline attack, several financial leaders proposed a ban on cryptocurrency.

“We can live in a world with cryptocurrency or a world without ransomware, but we can’t have both,” Lee Reiners, the executive director of the Global Financial Markets Center at Duke Law School, wrote in The Wall Street Journal.

Cryptocurrency experts said the hackers could have tried to make their Bitcoin accounts even more secure. Some cryptocurrency holders go to great lengths to store their private keys away from anything connected to the internet, in what is called a “cold wallet.” Some memorize the string of numbers and letters. Others write them down on paper, though those can be obtained by search warrants or police work.

“The only way to obtain the truly unseizable characteristic of the asset class is to memorize the keys and not have them written down anywhere,” Mr. Proudman said.

Mr. Raimondi of the Justice Department said the Colonial Pipeline ransom seizure was the latest sting operation by federal prosecutors to recoup illicitly gained cryptocurrency. He said the department has made “many seizures, in the hundreds of millions of dollars, from unhosted cryptocurrency wallets” used for criminal activity.

In January, the Justice Department disrupted another ransomware group, NetWalker, which used ransomware to extort money from municipalities, hospitals, law enforcement agencies and schools.

As part of that sting, the department obtained about $500,000 of NetWalker’s cryptocurrency that had been collected from victims of their ransomware.

“While these individuals believe they operate anonymously in the digital space, we have the skill and tenacity to identify and prosecute these actors to the full extent of the law and seize their criminal proceeds,” Maria Chapa Lopez, then the U.S. attorney for the Middle District of Florida, said when the case was announced.

In February, the Justice Department said it had warrants to seize nearly $2 million in cryptocurrencies that North Korean hackers had stolen and put into accounts at two different cryptocurrency exchanges.

Last August, the department also unsealed a complaint outing North Korean hackers who stole $28.7 million of cryptocurrency from a cryptocurrency exchange, and then laundered the proceeds through Chinese cryptocurrency laundering services. The F.B.I. traced the funds to 280 cryptocurrency wallets and their owners.

In the end, “cryptocurrencies are actually more transparent than most other forms of value transfer,” said Madeleine Kennedy, a spokeswoman for Chainalysis, the start-up that traces cryptocurrency payments. “Certainly more transparent than cash.”