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Jameson Lopp has been on the front lines of the battle between technologists and those who want to preserve Bitcoin as it is since the scaling debates of 2015–2017.


The topic arouses such passion that many suspect it was a disgruntled Bitcoiner opponent who called down an armed SWAT team to his home, leading him to famously go underground.

Lopp blamed the 2017 incident on the “same old same old: Bitcoin philosophy and scaling debate arguments. A few of the more extreme cases think I’m some kind of manipulative monster.”

Lopp, who is currently the chief technology officer for decentralized wallet service Casa, is an advocate for cautious progress who commands respect among the Bitcoin community.  

Speaking from an undisclosed location, Lopp says he worries the backlash against Ordinals NFTs might result in lower support for much-needed future upgrades. Ordinals were largely an unexpected result of the 2021 Taproot soft fork.

“The problem that I see is that there’s a lot of ossification proponents out there. And they’re pointing at Ordinals and inscriptions and saying, ‘You see, this is what happens when you change the protocol. It gets abused and used in ways that were not intended,’” he says.

But Lopp says the alternative is every bit as risky. He has carefully considered the problem of  Bitcoin’s “ossification” — where the network becomes so big “it kind of gets crushed under its own weight and unable to change itself.”

Beer
Jameson Lopp enjoys a beer bought with Bitcoin. (Twitter)

Lopp uses email as an example of an internet protocol that ossified in the 1990s, leaving it with little ability to deal with the massive volumes of spam that subsequently arose.

Instead, corporations constructed expensive centralized reputation services on top to sort out spam from legit emails, and today, large numbers of emails that don’t comply with the arcane rules of the systems simply disappear into a black hole. And users are still deluged with spam.  



“As of today, something like 90% of all email users are captured by five corporations. So, I think we have to ask ourselves: Is that the mainstream adoption of Bitcoin that we want to see? And if not, then what do we need to do to prevent that?”

For Lopp, scaling Bitcoin — something he’s been agitating for, for years — remains the big challenge as the Lightning Network is “not going to fix everything.”

“If you talk to any of the developers, who’re pretty deep into the protocol, you’ll be hard-pressed to find any of them who think that we should ossify the protocol now. There’s so much work to be done.”

“Honestly, I don’t know how much time we have left to do that.”

Historically, Lopp’s company Casa has been solely focused on Bitcoin, but last month, it outraged puritans on social media by adding Ethereum to its multisignature self-custody solutions. It highlights the fact Bitcoin has a fast-growing challenger snapping at its heels if it lets up the pace. 

Southern Man Jameson Lopp
You can take the Bitcoiner out of the south, but… (Twitter)

Who is Jameson Lopp?

Lopp grew up in a “fairly typical Southern American conservative household” in North Carolina, where his father’s side of the family has lived since the 1700s. It was clear from early on that he was super bright, and his parents pushed him hard to achieve great things at school.

“I read probably several grades above my reading level, and I read all the time. I had a special exemption at the library to check out more books than you are normally allowed to just because I was going through such a high volume of them.”

Placed into high-level courses, he often wound up sitting on his own doing separate assignments from the rest of the class, something of a “social outcast.” 

“On the social side, I would just get even more awkwardness and sort of abuse because I would sometimes use vocabulary that nobody else was using, and they were like, you know, ‘Who is this alien guy?’”

Lopp ended up joining Mensa in 2010, mainly to see if he could pass the test requiring an IQ in the top 2%. Naturally, he set up a Mensa Bitcoin special interest group, though he says super-smart people don’t necessarily get Bitcoin any faster than anyone else and points to the dismissive reaction to Satoshi’s original announcement about Bitcoin.

“The people who were responding to that email were not stupid. They were incredibly intelligent people. But if you’re intelligent enough, you can always find reasons why something won’t work.”

Coming of age

After school, Lopp headed to study computer science at the “very liberal” University of North Carolina at Chapel Hill. Brought up to be a very conservative Republican, he says university “swung my perspective a little bit more outside of the sort of family and household standards that I had been used to.” He ended up voting for Obama in 2008, Libertarian in the following election, and now believes he can have more impact building decentralized financial infrastructure than voting.

“These days, I view politics at a very arm’s length amused perspective.”

He worked in email marketing for years in one of the tech areas near Raleigh, moving up from working on the web app to large-scale data analysis. Like most people in tech, he read about Bitcoin a few times and dismissed it as “nerd money that was going to end badly” before finally reading the white paper in 2012.

“I was just blown away,” he says, noting that Satoshi approached the double-spending and Byzantine generals problem from the exact opposite direction of the “performance and efficiency” mindset Lopp had been taught.

“When I read the white paper and I saw the solution to the problem, I was amazed because it was both elegant and ass-backward,” he says. 

“The solution was to make everything really, really expensive in terms of resource usage. I was like, wow, I never in a million years would have thought to try that because it just goes against our nature as computer scientists.”

Jameson Lopp
Supplied image of Jameson Lopp.

Bitcoiners back then were primarily libertarians, cypherpunks and crypto-anarchists, and the chance to find an alternate way forward was part of the appeal.

“We can build alternative power structures, alternative systems that don’t rely upon any of the existing infrastructure. And basically, we can create our own rules for how these systems should operate.”

Lopp forks Bitcoin Core

Within two years, Lopp had created a fork of Bitcoin Core called Statoshi to “bring more transparency and understanding to the internal operations of a Bitcoin node.” He applied for a grant from the Bitcoin Foundation to work full time on the project but never heard back. Five years later, he discovered he’d been successful, but the foundation fell apart before he received any money.

Lopp also applied to work at Coinbase in 2015 and “never even got an interview,” but his work on Statoshi did land him a gig running the nodes for institutional custody and infrastructure provider BitGo. He also began to nurture his public profile, ramping up his research and writing — he’s written for CoinDesk, Cointelegraph and Forbes — tweeting more often, organizing Meetups and presenting at events. He’s now a regular at conferences around the world, but it wasn’t easy to start. 

“I’m definitely an introvert, though you wouldn’t know it because I do all of these public speaking events. But that took a lot of practice to do.”

Jameson Lopp grenade
Lopp was happy to lob the occasion grenade during the scaling debates. (Twitter)

Lopp says the block size wars (2015–2017) was the period when he started to become really well-known in Bitcoiner circles. Initially, he was on the big blocks side, writing an article in 2015 calling for an increase in the 1MB size of blocks to increase capacity and suggesting blocks may one day hit 10GB. He also supported the Bitcoin XT fork of Bitcoin Core, which ended up part of Bitcoin Cash.

“That was really a result of what I had been doing as an engineer for the past decade,” he says, adding that he’d spend much of each year prepping for the Black Friday and Cyber Monday sales because “if you couldn’t handle that, then it would be a bad user experience, you would lose customers, you would lose money, and the business would not grow as quickly.” He didn’t want Bitcoin to lose potential users through a bad experience with the slow, expensive blockchain.

However, his perspective started to change when he realized the impact bigger blocks would have on his own work at BitGo, writing services that talked to the nodes.

“I started to see the opposite side of the argument,” he explains. “Even with these ‘tiny’ 1MB blocks, it was quite challenging for me to write services that could ingest all of this blockchain data at a very fast pace.”

It took weeks sometimes to get a new indexing service up and running from scratch, and doubling or tripling the block size would require exponentially more resources “to the point where only the largest enterprises who had a lot of money to throw at this problem would even be able to run the nodes and the services on top of them.”

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So, while Lopp ended up strongly supporting SegWit as a practical solution and thinks Bitcoin is superior to any other cryptocurrency as “sound money,” he also sees room for experimentation on other protocols, and on Bitcoin.

“A lot of people get very ideological and, in some cases, puritanical about this stuff,” he says. “Bitcoin is not a kitchen sink type of protocol there. There’s a lot of things that you can’t do on Bitcoin that you can do with other protocols.”

Su Casa, mi Casa

Lopp joined the decentralized Bitcoin self-custody service Casa in 2018 and was soon promoted to chief technology officer. He also has the title of co-founder. Casa is an alternative to centralized custodians and offers a range of multisignature wallet plans that enable users to avoid losing their funds in security incidents and to recover lost or stolen keys. 

Casa began support for Ethereum last month and claims it’s the first company to enable self-custody of both Bitcoin and Ether with up to five keys for distributed security. ERC-20 and NFT support is in the works. 

“Obviously, there were a few clients who fell into the sort of extreme Bitcoin-only camp who went their own way,” says Lopp, adding that this was expected. “Really, it’s this loud, tiny minority that can seem a lot bigger than they are if you’re on social media. But in reality, I would say most of our clients and most Bitcoiners, in general, are pretty moderate and kind of apathetic about all of the drama.”

He says the decision resulted from user demand because many existing clients “do have more diverse portfolios, and they want to have that same level of security for assets other than Bitcoin.”

The loud, tiny minority goes SWATing

The famous SWATing incident happened after his views began to evolve. A 911 caller claimed to be holed up at Lopp’s house with hostages, having already shot someone.

“By my voice, you can tell I’m not in a mental health state right now. I’m on drugs. I’m all over the place. I don’t know what to do. […] If I don’t get $60,000, I’m going to blow the whole fucking block up.”

Heavily armed cops arrived at his home, guns drawn. Lopp wasn’t home at the time and arrived to find his neighborhood shut down and crawling with dozens of patrol units, a SWAT team, a mobile command post, a fire truck and a paramedic. He had a conversation with a cop to find out what happened, not realizing he was the suspect.

Lopp recounts a chat with a cop on his blog. (Cypherpunk Cogitations)

Following the incident, Lopp tweeted a video of himself firing off an AR-15 rifle as a warning to anyone trying to find him.

The incident also inspired Lopp’s radical privacy experiment to live off the grid and off the radar of the authorities. Apart from standard stuff like using VPNs, private mailboxes and using fake names, it also involved setting up a bunch of limited liability companies to apply for bank accounts and credit cards one step removed. He mainly spent cash, used burner phone numbers and even bought “the crappiest, cheapest hole in the wall I could find that has a physical mailbox” as a physical address to get a driver’s license.

“I determined that the amount of effort and especially money that is required to do it is going to price almost everybody out of doing this,” he says, adding the fact that you have to lie to everyone was also likely to deter people from trying it.

“Everyone in my physical proximity, my neighbors, they only know my pseudonym. And you know, I have my backstory, and I literally had to create this whole alternate persona, but not so different, it would be difficult for me to make it believable. So, like, I’m still a software engineer who knows a lot about security.”

Lopp maintains a GitHub list of “known physical Bitcoin attacks,” which spans from Hal Finney getting SWATed in December 2014 to a couple in Queens, New York who in mid July were mugged by assailants disguised as FBI agents that stole their car, $40,000 in cash and their crypto.

The No. 1 lesson to take from the list is that the fewer people who know they can rob you of your crypto by threatening you with a $5 wrench, the better. So it’s interesting to learn that prior to his SWATing, Lopp used to drive around in a flashy Lotus Elise with a BITCOIN license plate, basically inviting attacks.

Although many people thought it was a Lamborghini, Lopp says that “it was actually a salvage title car that I got for $20,000.” He eventually sold it, but he has the BITCOIN license plate hanging on the wall behind him during our interview as a memento. These days, Lopp drives “extremely common vehicles that are mass-produced by the millions.”

Jameson Lopp
The Bitcoin number plate has been retired. (Twitter)

Future progress for Bitcoin

Pushing for progress on Bitcoin while not destroying all of the things Bitcoiners hold dear has always been a thorny problem. Roger “Bitcoin Jesus” Ver couldn’t solve it and went off with the Bitcoin Cash camp, who then split off with Craig “No, I really am Satoshi” Wright heading up Bitcoin SV.

There are also Bitcoiners trying to change it from within, like Eric Wall and Udi Wertheimer, who have embraced Ordinals. Wall is also investigating scaling Bitcoin using the same zero-knowledge proof technology being used to scale Ethereum via Starknet.

Lopp says he’s focused on a variety of improvements that can be made to “let people start building more outside of the base protocol.”

“You don’t need to go through the same onerous process to develop on a second layer, you don’t have to make these sweeping consensus changes that are really risky,” he explains.

“That’s one of the reasons why I want to see a lot more second layers other than just Lightning. I want to see more sidechains, drive chains, rollups, so on and so forth. Because I think that that is going to enable more innovation, more experimentation.”

Andrew Fenton

Andrew Fenton

Based in Melbourne, Andrew Fenton is a journalist and editor covering cryptocurrency and blockchain. He has worked as a national entertainment writer for News Corp Australia, on SA Weekend as a film journalist, and at The Melbourne Weekly.

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KuCoin’s settlement with CFTC in flux after Trump policy shift

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KuCoin’s settlement with CFTC in flux after Trump policy shift

KuCoin’s settlement with CFTC in flux after Trump policy shift

A planned settlement between the US Commodity Futures Trading Commission and crypto exchange KuCoin will likely be delayed after a policy shift at the CFTC to deprioritize cases against crypto companies under the Trump administration.

CFTC attorney John Murphy submitted a letter on April 21 to District Judge Valerie Caproni, asking for more time to secure approval for a deal negotiated under the Biden administration, reported Law360.

“It appears unlikely that such authorization will be granted in the near term,” he said, referencing a recent statement by acting CFTC Chair Caroline Pham that the agency’s enforcement division was to deprioritize cases against crypto companies.

The CFTC charged KuCoin with “multiple violations of the Commodity Exchange Act (CEA) and CFTC regulations” in March 2024.

According to the Justice Department, which also filed charges against KuCoin and two founders for violating Anti-Money Laundering laws, the exchange received more than $5 billion and sent more than $4 billion in “suspicious and criminal funds.” 

KuCoin, trading under Mek Global Limited, reached a $297 million settlement with the Department of Justice in January and agreed to exit the US market for at least two years. 

In December, the CFTC and KuCoin informed the court that they reached an agreement in principle to settle the case, however terms and details of the proposed deal were not disclosed. 

In March, KuCoin asked the judge for a 14-day stay to address further negotiations in line with President Trump’s executive order curtailing enforcement actions against the digital asset industry. However, this request was denied, with the judge pressing for negotiation status updates. 

No majority at CFTC

When Pham announced in February that the Commission would wind down its practice of regulation by enforcement, she also noted that terminating active cases would be more difficult to deal with.

The CFTC needs a majority to dismiss a case or authorize its settlement, and there is currently no majority, with two members from each party sitting on its governing body.

This could change if the Senate confirms the appointment of Trump nominee Brian Quintenz to lead the financial regulator.

Both parties have requested an additional 60 days or until the Commission provides “definitive direction” on the matter. 

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On April 21, the CFTC’s Divisions of Market Oversight issued a request for comment to better inform them on the potential uses, benefits, and risks of perpetual contracts in derivatives markets.

“Innovation and new technology have created a renaissance in markets that presents new opportunities that are accessible to more people, as well as risks,” said Pham. 

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Rachel Reeves to head to Washington amid hopes of US trade deal

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Rachel Reeves to head to Washington amid hopes of US trade deal

Rachel Reeves will pledge to “stand up for Britain’s national interest” as she heads to Washington DC amid hopes of a UK/US trade deal.

The chancellor will fly to the US capital for her spring meetings of the International Monetary Fund (IMF), the first of which began on Sunday.

During her three-day visit, Ms Reeves is set to hold meetings with G7, G20 and IMF counterparts about the changing global economy and is expected to make the case for open trade.

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Her visit comes after Donald Trump imposed blanket 10% tariffs on all imports into the US, including from the UK, and as talks about reaching a trade deal intensified.

The chancellor will also hold her first in-person meeting with her US counterpart, treasury secretary Scott Bessent, about striking a new trade agreement, which the UK hopes will take the sting out of Mr Trump’s tariffs.

In addition to the 10% levy on all goods imported to America from the UK, Mr Trump enacted a 25% levy on car imports.

Ms Reeves will also be hoping to encourage fellow European finance ministers to increase their defence spending and discuss the best ways to support Ukraine in its war against Russia.

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Speaking ahead of her visit, Ms Reeves said: “The world has changed, and we are in a new era of global trade. I am in no doubt that the imposition of tariffs will have a profound impact on the global economy and the economy at home.

“This changing world is unsettling for families who are worried about the cost of living and businesses concerned about what tariffs will mean for them. But our task as a government is not to be knocked off course or to take rash action which risks undermining people’s security.

“Instead, we must rise to meet the moment and I will always act to defend British interests as part of our plan for change.

“We need a world economy that provides stability and fairness for businesses wanting to invest and trade, more trade and global partnerships between nations with shared interests, and security for working people who want to get on with their lives.”

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Starmer and Zelenskyy discuss ending Russia’s ‘brutal war’ – as Putin says says he is open to bilateral talks on longer ceasefire

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Starmer and Zelenskyy discuss ending Russia's 'brutal war' - as Putin says says he is open to bilateral talks on longer ceasefire

Sir Keir Starmer and Volodymyr Zelenskyy spoke about ending Russia’s “brutal war” on Ukraine in their latest phone call on Easter Monday, as Vladimir Putin said he was open to bilateral talks.

The prime minister and Ukrainian president spoke on Monday afternoon, when Sir Keir “reiterated his iron-clad support for Ukraine“.

A Downing Street spokesperson added that the prime minister “said that the UK supports Ukraine’s calls for Russia to commit to a full ceasefire and that now is the time for Putin to show he is serious about ending his brutal war”.

“They discussed the latest developments on the Coalition of the Willing, and looked forward to further progress towards a just and lasting peace,” the spokesperson added.

Mr Zelenskyy later said on social media that he had a “good and detailed conversation” with the prime minister, and added Ukrainian officials will be in London for talks on ending the war with Russia on Wednesday.

“We are ready to move forward as constructively as possible, just as we have done before, to achieve an unconditional ceasefire, followed by the establishment of a real and lasting peace,” he added.

The Ukrainian president added that the 30-hour Easter truce, which both Kyiv and Moscow accuse the other of violating, showed that Russia “are prolonging the war”.

It comes as Mr Putin proposed bilateral talks with Ukraine on a longer ceasefire, which would mark the first time Russia held such talks since a failed peace deal soon after the invasion in 2022.

Speaking to a state TV reporter, the Russian president said: “We always have a positive attitude towards a truce, which is why we came up with such an initiative (the Easter truce), especially since we are talking about the bright Easter days.”

When asked about Mr Zelenskyy’s calls to extend the 30-hour ceasefire into a 30-day pause on civilian targets, he added: “This is all a subject for careful study, perhaps even bilaterally. We do not rule this out.”

The Ukrainian president said on Sunday evening that the Russian army had “violated Putin’s ceasefire more than 2,000 times” during the day, and accused Russia of “failing” to “uphold its own promise of a ceasefire”.

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From Saturday: Why Putin offered an Easter truce?

It also comes after Donald Trump has said he hopes Russia and Ukraine “will make a deal this week,” after he and his secretary of state Marco Rubio warned that the US will walk away from efforts to broker a peace deal unless there are clear signs of progress soon.

The US president said on his Truth Social platform that both countries would “start to do big business” with the US after ending the war.

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Last month, Ukraine accepted Mr Trump’s proposal for a 30-day truce, but Mr Putin refused to back a full 30-day ceasefire, saying crucial issues of verification had not been sorted out.

He then said he would agree not to target Ukraine’s energy infrastructure. However, both sides have accused each other of breaking the moratorium on attacks on energy targets and at sea.

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