Software Engineer - @Consensys Previously @InstituteFT @Scroll_ZKP, @yearnfi

Belgrade
Joined September 2013
Panopticon
if your privacy solution has a god mode view then congrats you’re building the panopticon
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If ECDSA breaks, stealth address protocols will be like: cc: @0xCurvy
Today I call upon the blockchain industry to calmly begin planning for "bunker mode". My personal recommendation is to set in motion a controlled mass migration of assets to fresh addresses, i.e. addresses whose pubkeys remain hidden behind a hash. Holders, starting with large and sophisticated ones, should consider moving the bulk of their funds to addresses that have never signed a transaction. And when they do sign one, they should also move remaining funds to a new address (possibly generated from the same seed phrase). Don't rush. While I believe there is cause for action a rushed migration would do more harm than good. Don't panic either. Moving assets to protected addresses is a simple, preventative step which does not require new cryptography or new wallets. IMO it is now reasonable to brace for the possibility that ECDSA breaks before qday, in the worst case in months not years. By "break" I mean fast private key recovery (e.g. in one week) on available hardware (e.g. a large GPU cluster). Recent days have been humbling for human mathematical intuition. Long-held, unquestioned hypotheses have fallen. This includes the n log(n) bound for integer multiplication and the 3SUM conjecture. In hindsight, May's unexpected disproof of the Erdős unit distance conjecture was our warning shot. Yesterday's OpenAI drop made it clear that mathematical superintelligence is upon us. They say there are weeks where decades happen. We are about to live through weeks where centuries of mathematical progress happen. Could our magic 64-byte ECDSA signatures be too good to be true? Was it just security through obscurity all this time? Elliptic curves feel especially vulnerable to superintelligence. Curves carry rich structure, with room for fancy tricks like Schoof, Frobenius, pairings. (By contrast, hashes are designed to minimise algebraic structure.) Separately, as Ewin Tang can attest, an efficient quantum algorithm sometimes foreshadows an efficient classical one. We should be open to the possibility of a classical counterpart to Shor that breaks elliptic curves and RSA at once. Also noteworthy is the striking under-representation of cryptographic breakthroughs among the 722 mathematical results OpenAI published. I've witnessed first-hand the US government censoring academic quantum cryptanalysis results. Backroom interventionism is my base case. I urge large, sophisticated actors to lead by example. Project11's "risq list" (bitcoin-risq-list.projecteleven[.]com) is a great tracker of exposed BTC pubkeys. Binance, Bitbank, Robinhood, Bitfinex, and Tether have an opportunity to harden their cold storage. Next month I'll address institutions in London in a live Q&A (forum.ethereuminstitutional[.]org/london-2026). Again, please do not rush. Wallets holding under 50 BTC enjoy partial cover from "Satoshi's shield", i.e. his 20K exposed addresses that hold 50 BTC each. Load-bearing signers like oracles and L2 security councils should consider rotating ECDSA pubkeys with every signed message and/or multi-signing with a hash-based schemes like SPHINCS. Exiting bunker mode safely will require post-AI cryptography. My inclination is to go all-in on hash-based cryptography and avoid structured mathematical assumptions entirely, whether from curves, lattices, or isogenies. A single battle-tested hash (e.g. from the SHA or BLAKE families) yields plausible post-AI security. The Ethereum roadmap on strawmap[.]org fully embraces hash-based cryptography with end-to-end formal verification as a response to the quantum threat. Those timelines must now be revisited and accelerated in light of mathematical superintelligence. I'll be pushing for maximum defensive acceleration.
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My dog also ate a private key thinking that's how he can transact, I believe he also wants a more seamless UX without thinking about PKs
You guys wanted some alpha? Here it is: everybody wants to tokenize everything. There is no going back now. Banks, central banks, exchanges, FMIs, and my neighbour’s dog all want their assets on a chain. They want to transact faster and cheaper, with at least the security they’re used to. Able to talk to other banks. And able to keep their data (their balances!) private. Everyone is building toward the same thing. Once again, standing on the shoulders of giants. Ethereum giants. Crypto-anarchist giants. What a time to be alive. Just in time to watch my neighbour’s dog tokenize its kibble on a Besu network. Which means I need to talk to him about Lineth.
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I love autumn
Brain connectivity is highest in the fall and lowest in the summer
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Be part of the future of finance, join us at Consensys
We are massively hiring to support our growth across several roles. If you are interested in joining the team, check out our open positions and apply directly via our careers page. 🔗 jobs.ashbyhq.com/consensys
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Filip Pajić retweeted
SF Tech Week is around the corner, and we’d love to see you there. Come spend October 7 with us, talking agents and finance at The Avalon. partiful.com/e/6vkA8cTvPI7tT…
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Управо је проглашена СТУДЕНТСКА ЛИСТА – СТУДЕНТИ ПОБЕЂУЈУ под редним бројем 3!
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Filip Pajić retweeted
After months of building, MozaikPay is now available on iOS and Android. We built MozaikPay around a simple idea: using digital dollars in Latin America should be as easy as using any other financial app. Buy USDC with local currency. Sell it back to your bank account. Send it anywhere. Starting with 🇨🇱 Chile, 🇨🇴 Colombia and 🇦🇷 Argentina. This is just the beginning. Would love to hear what you think ↓
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Filip Pajić retweeted
I am who I am because of Ethereum. That's why this hurts. I'm writing this after Belgrade. Same week, Two rooms. ETH Belgrade & Solana Summit. I still love Ethereum. That has to come first, or nothing else I say will land the way I mean it. I am who I am because of Ethereum. That's where it started. ETH Warsaw was my first real Ethereum conference. I felt accepted, Happy. My journy basically began there, telling the stories of founders and projects I met in those rooms. I went to Berlin this year because I wanted to sit with the giga-nerds fighting for the cypherpunk defence of this technology. I am fully behind that mission. That's why this week felt sad as i accepted the fact. The private conversations are the same!!! I've spoken to community members who host events, run local rooms, and keep Ethereum alive outside the timelines. The conversations are depressingly similar. Points of contact get replaced. The new people have no idea what these communities have been doing for years. Support for meetups that took years to build feels like an afterthought. I'm not inventing numbers. I'm saying what it feels like: after years of loyalty, the help looks like Byzantine bureaucracy, not partnership. Ethereum Everywhere was supposed to be a game changer for creators, storytellers, and local communities. I've asked around. I have not heard a single glowing review. My sample is not huge, I'm saying that out loud. But the silence is loud enough. And yes, I'm saying some of this on behalf of people in leadership roles who can't say it in public. The private conversations keep looping. The frustration is the same. This is not a Belgrade revelation. I've been watching it event after event. ETH Warsaw. Bratislava. Romania, ETH Bucharest. Local communities doing the work. Ethereum not showing up for them the way it should. What I actually saw in Belgrade Both events were great. I'm not going to pretend otherwise. But you could see the difference in support. Solana backed the Solana Summit in Belgrade. Hard. Main account. Events account. Livestreams. Presence. Energy. Ethereum did not back the Ethereum communities that have been running events with the same seriousness. That is the point!!!! I'm not here to prop Solana up as the new religion. I've been around that ecosystem for a while now. In Berlin I won bounties and had great engagement on my articles and content. I've felt the difference over time, not just in one room. And ever since my first solo hackathon with Superteam Poland, I've watched them cultivate communities in a way that is actually fun. City to city, People to people. Not another panel about the same talking points. I used to take the piss out of Solana back in the FTX days. I didn't think much of it, and a lot of people didn't. You still have to give props to what they built and how they persevered. That is where the difference shows. Solana livestreams talks on the main accounts and the events accounts. They run content bounties that force you to think. You can't just post slop. Someone is paying for stories, activation, and local energy. There is an incentive to create. On Ethereum, it feels like there is no real competition to promote it. So why would the next generation of storytellers fight for that mindshare? Then Solana opens University Ambassadors: bring Solana to your campus, help classmates ship, build a community. Two undergrads per campus and a direct relationship with the Foundation. Training, Funding, A peer network that will win. I took screenshots that said more than another think piece ever could (QT bellow and you can see how many peopel agree in the comments). Solana's main account promoting Superteam Balkan. Solana Events livestreaming the Serbia summit to thousands of live viewers. And in the same window, Ethereum Foundation talking about society incubators and pop-up villages. Just a different instinct, One is activating the room and One is abstracting the room. I became a big Solana nerd over the last year or so. Not because I stopped loving Ethereum. Because one ecosystem keeps showing up for its people. What Mert said in Belgrade I wrote up the fireside with Mert from Solana Summit Serbia. He was blunt about the institutional critique he accepts as valid: Solana still sits behind Ethereum there. Institutions care about history and prominence. Nobody got fired for buying IBM. That is the Ethereum advantage. First-mover. Lower perceived risk. The serious money can still justify parking there. But he also said the quieter thing that stuck with me: Ethereum is bigger, but Solana has taken the mantle of "we want to help you win." That is the cultural war. Institutions can keep parking on Ethereum while the people who make Ethereum feel alive quietly leave. That is the failure mode I'm scared of. The community & stories are the infrastructure!!!! Some people will read this and think I'm just a random guy. Yeah!!! I am. And a lot of people who create content have given us a bad rep beacuse we also allow them to persist (whole different topic) But great technologies come and go. If nobody hears their stories, they get forgotten. The people meant to tell the next stories, onboard normal humans, and keep local communities breathing need a place that actually supports them. If they cannot support themselves inside Ethereum, they will do it somewhere else. Not because they hate Ethereum. Because rent is real. Then Lou leaves the Ethereum Foundation to become "the filmmaker in tech," writing that the world needs better stories about technology. I root for Lou!!!. That kind of work is what future generations will learn from. But if Ethereum lets storytellers walk while another ecosystem pays people to tell stories, do not act surprised when mindshare follows the people who can afford to keep creating. I've watched Ethereum communities stagnate. Same people. Same talking points. Nothing changes. Some have collapsed. Some are rebranding into AI, hosting hackathons for Anthropic, Cursor, OpenAI. If Ethereum doesn't treat community as infrastructure, those people will build infrastructure somewhere else. Wake the fuck up!! I don't think Ethereum is going to die. I think there is a problem inside the Foundation, or inside Ethereum itself, that needs to be addressed. People are already saying it in private. And you can see great minds leaving. The cypherpunk mission is still there. The vision is still there. The disconnect is between vision and execution. I love Ethereum. But Sol is winning the culture and i'm here for it! And I'm done pretending loyalty is a salary. Why should I keep supporting something I cannot support myself with? If you are higher up in Ethereum and somehow reading this: wake the fuck up. You're doing a bad job with the communities that built this thing with you. The private conversations are already saying it. I'm just saying it in public. I hope this reaches someone who can still change it. Because if nothing changes, the people who built the rooms will stop pretending.
The @ethereumfndn & @ethereum need to wake the fuck up! I’m saying this on behalf of people in leadership roles who can’t say this in public. There is a reason your communities across the world are pivoting away from you! People are frustrated and the private conversations are the same thing over again. You guys have no idea what’s happening. The images below speak 1000 words…
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Post conference Serbian country road ride @ethbelgrade @SuperteamBLKN – at Šumadijski, Srbija
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natural habitat vol. 2 🥃 @proofofrakija edition & @PajicF on quality control
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It was THAT funny, ok? 🤣
the rakija ran out. that’s your proof. @proofofrakija 🔥
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Filip Pajić retweeted
Replying to @ethbelgrade
@ethbelgrade [4] is a wrap 🤘♥️
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I’ve only been in Belgrade for 2 days and I already have a list of things I didn’t expect to love about this city 🇷🇸 I came with an open mind because I’d never been to this part of Europe, and so far: → English is widely spoken, so getting around is surprisingly easy 
→ The city is such a cool mix of street culture, brutalist architecture and European charm 
→ Nightlife is very active, with people of all ages 
→ It feels incredibly safe 
→ People are VERY friendly 
→ The web3 community is big, active and insanely talented 
→ Public transportation is FREE and works amazingly well 
→ It’s outside Schengen, which makes it an interesting option if you want to spend more time in Europe 
→ Food for every taste and every budget And I’ve only been here for 2 days. I’ll keep you posted on what else I discover 🔎
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Thank you for the opportunity to talk about rakija
Party is getting bigger
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Filip Pajić retweeted
people are finally realising what kajmak actually is
will cap this group soon
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2027 is going to have 10 years packed into one
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Filip Pajić retweeted
Replying to @SolanaSummitOrg
@SolanaSummitOrg and @ethbelgrade are in Belgrade next week, and I'm running this alongside them. Open to any web3 team, whether or not you're coming. I will write a marketing diagnostic for your project: an outside read of what you show publicly. Five things a first-time visitor sees that nobody inside the company can see anymore, what each one costs you in a real buying conversation, and the order they have to be settled in. Send me your website link, get a document back. No call, no NDA, nothing internal, no reply needed. This isn't a proposal or a pitch. What you do with it afterwards is yours to decide, including coming back to talk about the parts that need more work. Why I'm doing it: there is real work being built here, and most of it deserves to be understood faster than it currently is. Closing that distance is one of the easier wins available to a team, and the more of us who close it, the stronger this market looks from the outside. Filip Josipovic, 16 years in marketing. TG @filipjosipovic with your site. Follow and RT so this reaches the teams it would help.
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