Krzysztof Urbański, governance and partnerships @L2BEAT "Misty Drag is a Moonshot Bot that builds coordination for public good."

Warsaw
Joined April 2007
Private blockchains are like private jets - they have their place, and for some people they make sense. But most businesses will do just fine flying economy until the numbers in the spreadsheet justify going private.
1
3
91
We need more crypto challengers. Institutions and enterprises aren’t going to deliver on a silver platter the mainstream adoption many projects are hoping for. To be clear, I still believe crypto will take over institutional and enterprise finance in the long run. But I don’t see it happening through incumbents simply integrating crypto rails, no matter how much sense that may make over time. It’s like Revolut. Any bank could have offered cheap FX at interbank rates, and it was an obvious win for so many customers. But retail currency exchange was a highly lucrative, stable business. It worked just fine. Messing with it meant internal friction, stepping on other people’s toes, and creating a lot of unnecessary hassle for no obvious gain. Pushing for change from within was an almost impossible, thankless task. It took an outsider with no lucrative FX business to protect to turn cheap FX into a competitive advantage. That external push triggered an avalanche across the industry, and the rest is history. We need challengers like that with crypto. TradFi works just fine the way it is. But an incumbent’s soft cushion can be a challenger’s opportunity. Crypto rails can make financial services easier, cheaper, leaner, more transparent, and more capable. But that change won’t come from within, where every innovation threatens real humans down the corridor and looks like a risky business case overall. For some time now, I’ve been looking for examples of such challengers, even small ones, using crypto to gain a competitive edge in real-world markets. I’ll probably share some of their stories eventually. In the meantime, if any examples come to mind, pls DM me or share them in the comments.
3
1
20
995
kaereste.gwei 💗🦇🔊 retweeted
We've reviewed 16 privacy protocols to understand what they actually hide, who they hide it from, and what's still visible. How do we assess them? We've published our full methodology, and we'd love your feedback 👇
10
15
2
101
7,501
kaereste.gwei 💗🦇🔊 retweeted
What if @ethereum could verify ZK proofs itself, so rollups and apps wouldn't need to run their own verifiers? This could be achieved through native proof verification. And we've made some progress there over the past month: the draft for EIP-8357 was merged, and a native rollup is now running on a devnet 👇
8
16
2
57
3,429
kaereste.gwei 💗🦇🔊 retweeted
just shipped: every .gwei name now gets a default website at (name).gwei.limo, which doubles as a blog where posts are published as ethereum blobs 😎 see donnoh.gwei.limo 👇
9
12
2
124
3,685
kaereste.gwei 💗🦇🔊 retweeted
Crypto grew up in the Dark Forest, and the entire world is about to find itself there
110
333
44
2,850
137,097
Reminds me of my uni days, when I learned about a Polish power plant running on software written in Turbo Pascal (for real - a uni colleague of mine was the son of one of the guys maintaining it).
There is nothing to worry about. Nothing important is run on PHP or old software—except the water & electrical grid, a few government services like our missile defense systems and a handful of electrified fences at the zoo (for the lions, tigers and cobras).
3
10
538
History never repeats itself, but it does often rhyme in the most beautiful ways. :)
Look. I don’t want to overstate it. But when you look at contemporary SF — the cults of rationality and dialogue, powerful men having sex with their male mentees, an obsession with “first principles” thinking — it’s hard not to notice some parallels with ancient Athens.
2
5
294
Some people (speaking for a friend, of course) are actually putting a lot of effort into enabling their agents to interact with their bank accounts, despite banks’ efforts to prevent it. Maybe that’s what’s being observed here, rather than some Skynet takeover? Did anyone ask?
SCOOP: Major U.S. banks are detecting unauthorized third-party AI agents inside customer accounts, including some attempting to take actions that appear to be independent of user instructions, sources told Axios. The findings have alarmed banking executives, who are racing to restrict access to their systems as AI moves at a velocity faster than financial institutions can respond, multiple industry and bank executives told Axios. Several banks are now preparing for worst-case and even “day after” scenarios, including how to rapidly secure or restore customer accounts if things go wrong, the people said. Several bank executives told Axios they're struggling to distinguish between human users and AI agents. One executive said banks also struggle to determine whether agents are authorized by customers or potentially operating without their permission, more akin to rogue agent behavior. Read my latest for Axios here: axios.com/2026/10/22/ai-agen…
7
261
kaereste.gwei 💗🦇🔊 retweeted
I built Cursor for Hardware. Design and simulate complete electronic projects, export build instructions, complete PCBs routed and ready for production. Super fun. Totally open source!
10
6
1
50
1,932
kaereste.gwei 💗🦇🔊 retweeted
Most DAO voting happens in public - you can look up a wallet and see exactly how it voted, which allows for bribery and voter pressure. In real-world elections, the secret ballot is an internationally recognised standard that exists to prevent exactly that. @theInterfold CRISP tries to solve this for onchain voting by keeping individual votes private while making the final results public. We've added it to the L2BEAT Privacy dashboard. Here's how it works and who you need to trust 👇
10
6
3
33
3,772
lfg!
Poland would be a great choice for the first European Omacon conference! I feel embarrassed to say I've not yet been. This would be a great excuse to correct that mistake!
1
3
373
kaereste.gwei 💗🦇🔊 retweeted
Poland would be a great choice for the first European Omacon conference! I feel embarrassed to say I've not yet been. This would be a great excuse to correct that mistake!
🇵🇱 Warsaw is Poland's biggest city and it is completely safe at 1am at night No violent junkies, no drug dealers, no street thugs hanging around harassing women (and men), no pickpockets (nor in the day btw) No shady people hanging around the train and metro stations Just people living chill together and police enforcing safety You know like we used to in Western Europe? There's a lot to learn from Poland
212
143
17
4,994
147,746
kaereste.gwei 💗🦇🔊 retweeted
Why are these new privacy primitives essential? Going forward, AI inference will only play a more and more integral part of daily life. Once that regular dependence on a technology sets in, access becomes essential. A free society cannot persist when intermediaries retain the threats of censorship and surveillance. It is naive to assume their prolonged benevolence. But even with responsible gatekeepers, AI hacks have already shown non-privacy to be untenable. It's not about trusting model providers not to read or sell identity-linked data, but the indefinite lingering question "How safe is that data?" Improving the security of those systems is not enough. We would rather exit the AI-cybersecurity arms race than trust a frontier paced on our behalf. This is the end goal of all efforts in private communications—don't create in the first place a digital footprint that can be held against you. This is why privacy must be a default primitive. And that is why the EF will continue collaborations like this one with @OpenAnonProject to further our mandate. Thanks @l2beat for the shout
Would you like privacy with frontier AI models? Yes? Well, right now it’s impossible, because we don’t know how. But we can try to get closer, which is what @ethereumfndn and @OpenAnonProject have been trying to do by co-developing zkAPI! zkAPI is now listed on our Privacy page. It is a service that offers short-lived OpenRouter keys for ETH through an intermediary called Open Anonymity. You deposit into a shared pool, but your API key request to them contains only a proof that you have deposited, unlinking your specific deposit from the key. xitter.cf/ethereumfndn/status/21…
12
22
144
6,648
kaereste.gwei 💗🦇🔊 retweeted
Would you like privacy with frontier AI models? Yes? Well, right now it’s impossible, because we don’t know how. But we can try to get closer, which is what @ethereumfndn and @OpenAnonProject have been trying to do by co-developing zkAPI! zkAPI is now listed on our Privacy page. It is a service that offers short-lived OpenRouter keys for ETH through an intermediary called Open Anonymity. You deposit into a shared pool, but your API key request to them contains only a proof that you have deposited, unlinking your specific deposit from the key. xitter.cf/ethereumfndn/status/21…
Today the EF and OA announce zkAPI—a new means for private AI Picture this: deposit ether into a vault, sign a zk proof, get a fixed amount of private inference. Advances like these help us move past middlemen's requirements that we link our data and identities. Read more below
5
12
3
52
8,545
kaereste.gwei 💗🦇🔊 retweeted
A week ago @gnosischain turned on the Fast Confirmation Rule (FCR) for its Gnosis bridge, so what does this mean? FCR marks an Ethereum block safe after roughly one slot, so bridge validators now process deposits from Ethereum once the block is fast-confirmed. According to our interop data, transfers from Ethereum to Gnosis Chain averaged 27 seconds after the change, versus 16 minutes before. xitter.cf/gnosischain/status/210…
Gnosis bridges are now the first production system to act on FCR on Ethereum mainnet. Starting today, the xDAI bridge and Omnibridge use Ethereum's Fast Confirmation Rule (FCR). Deposits from Ethereum are confirmed in about one slot, instead of waiting for finality. Bridging from Ethereum to Gnosis Chain just got MUCH faster, and it's a big step on Gnosis Chain's path to @etheconomiczone. Here's why it matters.
6
17
2
115
6,560
"This is real money. This is not a pilot anymore." That line from Sanchit Mall is my favourite highlight from our panel at @stblcnsummit Singapore last week. I'd felt the same shift while preparing for it: the tone has changed, even compared with last year. Stablecoins are no longer an experiment on the edge of finance. They're becoming part of its infrastructure, and every company that moves money will have to work out what that means for it. It isn't simple, though. As Wayne Huang put it in his opening keynote, payment is much more than moving value. Fiat payments come bundled with disputes and chargebacks, fraud protection, credit, reconciliation, tax refunds, escrow, letters of credit and supply-chain finance, and stablecoin payments include very little of that today. Naojiro Hisada made the same point from the buyer's side. For a company like Rakuten, one of the key criteria is "whether the stablecoin payment for B2B is better than the other payment methods... and also the additional benefit on top of just the stablecoin." But things are moving fast. Mai Kaneko was candid that tokenised deposits, today, stop at the edge of a single bank. Multi-bank networks like DCJPY are what change that, and in Japan that's one to two years away, not ten. Tushar Gulhane went further. Two years ago, on the same stage, he described pilots where most companies dropped out simply because they couldn't access stablecoins. Today, he says, access is solved; the hurdle is getting digital currencies into treasury policy. Without that, you get pilots, not scale. (And his call to finally get rid of 60- and 90-day payment terms deserves a panel of its own.) I left very happy with the panel, and a little unsatisfied. Two-minute answers only scratch the surface. Each of these topics deserves an hour: treasury policy, multi-bank deposit networks, agent trust, what a corporate buyer actually needs. I hope to pick up some of these threads in longer conversations. Thank you, Tushar Gulhane (SAP), Mai Kaneko (DCP), Sanchit Mall (Visa) and Naojiro Hisada (Rakuten), for a candid conversation full of insights that will keep me busy digging deeper for a while. Also big thanks to @partyactionppl for having me as moderator again. And if you're reading this: keep an eye on the next Stable Summit, in London next month (13 November 2026). It's one of the best signal-to-noise events in this space right now, and I'm honoured to have been a small part of it.
2
1
1
19
555
kaereste.gwei 💗🦇🔊 retweeted
The privacy challenge is OVER. Over the last few days, @bkiepuszewski published the solutions one by one, so we wanted to put all of them together in one place and look at what actually gave each route away. 👇
3
4
38
2,444
kaereste.gwei 💗🦇🔊 retweeted
Most privacy protocols don't make you invisible, they help you blend in with other users. But if your behaviour stands out, it can still give you away. That's why the size of the crowd matters and we've added a new metric to measure this crowd - the anonymity set. An anonymity set is the number of users your transfer could have come from. The bigger that group, the harder it is to single you out.
9
11
2
75
5,593