Dr. Z
@dr_zircuit
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💻 Technical lead and 🛠️ co-founding contributor at @ZircuitL2. Maybe also a cat 🐈
Joined February 2024
What’s coming in 2025?. 1/ Faster provers.2/ AI accessibility.3/ More security audits.4/ More zkVM exploration.5/ SLS upgrades (SLS 2.0 & 3.0).6/ Better gas mechanics.7/ Our own proving cluster. and more. .
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1/ I always question whether L3s can be significantly cheaper than L2s for users in terms of gas.
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A misconfigured oracle in a lending protocol can lead to:. - Unexpected $7.6m stablecoin loss, and arbitrage bots draining pools.- Pausing finalization of the affected chain to prevent damage.- Debate on decentralization tradeoffs .- A lot of effort to recover the funds. Sounds.
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When you revert a hack after it has happened, you are essentially choosing who takes the damage. The hacked LPs, or those who opened positions based on the hacked. Someone takes the damage. We don’t want hacks on @ZircuitL2. But we also stop them before they happen in the first.
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1/ EIP-6780 coming with the Dencun update to Ethereum modifies SELFDESTRUCT so that smart contracts can destroy themselves only in the transactions in which they were created.
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@dakshgup @dravishakatoch Omg, this is so flawed. The highest potential to succeed is taken by startups that offer unique innovation, successfully solve scaling issues, have exceptional timing, take advantage of external driving factors, etc. Sorry, working 24/7 in a high pressure environment isn’t on the.
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3/ If we don’t sustainably exhaust the block space on an L2, there won’t be a gas war on that network, and the gas prices for executing transactions should remain low.
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1/ This blog post on classification of ZK-EMVs by @VitalikButerin is becoming a classic. Let's go through it. Type 1: Fully Ethereum-Equivalent.Type 2: Fully EVM-Equivalent.Type 3: Almost EVM-Equivalent.Type 4: High-Level-Language Equivalent.
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🪂❤️.
🪂 The Zircuit Fairdrop is here for @eigenlayer holders and stakers! 🪂. This drop rewards participants who’ve supported Ethereum’s re-staking vision. All eligible wallets receive an equal reward—no matter the stake size! 💚. Here’s what you need to know 👇
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5/ Since there is no smart contract code on chain, this wallet doesn’t need to have the smart contract risk. There is nothing to hack. So unless someone can deploy the same wallet, which would require compromising the deployment process, the funds can’t be moved.
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4/ The other part that users pay for are data. But L3s post data on L2s that post that same data on L1s (or other DAs in case of validiums). The savings don't appear to be there either.
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The Future Computing Research workshops by @DelendumV belong to my favourite events packed with deep research content. Jens Groth is giving a talk at this beautiful venue right now.
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Shared some of my thoughts on flash loan exploits with DL News 🧠. Exploits like this are something we're actively trying to prevent with @ZircuitL2.
UwU Lend hacked again for $3.7m amid payback plan for first attack.
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Zircuit will be doing a talk about Sequencer-Level Security on Saturday March 2 at 2:45pm MST at the Seamount Stage at ETH Denver. We’ll go technical and take a look under the hood of this mechanic. @EthereumDenver @ZircuitL2.
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Today marks one year since @ZircuitL2 testnet launched at DevConnect 2023. It’s been an exciting year full of launches and releases for everyone in the Zircuit community. Thank you for all your support, and thank you to the team for all your hard work!❤️. Zircuit Mainnet.
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1/ Imagine that you fractionalize an NFT. You lock it in a smart contract and receive some number of representative ERC20 tokens for it.
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The hackers at ETH Taipei submitted 19 projects competing for the Zircuit bounties! 🔥.
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@jarrodWattsDev @samcmAU @ZircuitL2 Oh yeah, we are doing this. I just gave a live end-to-end demo at @EthPrague .
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6/ This is all very neat, but as far as I know, ephemeral smart contracts never took off. I don’t know why. While everything will now have to happen only in the constructor, the use case of CREATE2 + SELFDESTRUCT combo will remain valid and supported even after the Decun upgrade.
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In the initial phase, @ZircuitL2 intentionally uses so-called “template proofs” to roll up its state in a timely manner for the chain to reach finality fast. Over time, as the proving system matures and becomes more optimized, these will become unnecessary and every block will be.
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1/ I received an interesting sequencer-level security question after my talk at #ETHDenver2024: would Zircuit’s sequencer reorder some transactions to prevent hacks.
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More funds made it over to Zircuit. TVL on L2 now exceeds $750M. ❤️.
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7/ The redemption of the LP tokens for all the fractions would be possible only if all the fractions were present in that AMM pool. But in that case, the amount ETH in the pool will exactly match the original provision, because x * y = k.
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8/ Many of these operations are computationally difficult to produce a ZK proof for, and therefore we can have ZK-EVMs that don't include them. Those are Type 3 ZK-EVMs, and they can generally make more changes to how they work with the memory and stack, and to the opcodes.
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@0xCygaar This debate is the reason why we chose the design for sequencer-level security for Zircuit that I present at ETH Denver. It’s proactive, not reactive. I think that the right decision for Blast is clear, but it’s hard to make that call and go against the established ethos.
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Good engineering habits, testing, and smart contract audits are the first layer of security. A blockchain that actively stops hacks is another layer that can still save everyone’s funds if anything gets missed.
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Lido is coming to Zircuit. The proposal passed through a public governance vote!.
Gmeow ~ excited to share @LidoFinance voting for $wstETH on Zircuit passed with flying colors 🎉. Big thanks to all who voted and Lido DAO contributors for the guidance 🙏. Looking forward for Zircuit to be a comfy home for $wstETH hodlers 🏠. Snapshot 🔗
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There is a future where Zircuit might shift to a zkVM. This isn’t daydreaming. Research is underway, ensuring that if zkVMs outshine zkEVM, Zircuit is ready.
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Dear god… If Tay-Tay gets on chain… let it please be somewhere in the Ethereum ecosystem… 📈.
the fact that taylor swift leaks 99.25% of the value of her tickets to MEV is hilarious to me. honestly, crypto could actually solve this problem
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9/ Type 4 ZK-EVMs do not need to be based on EVM. We insist that there is equivalence at the programming language level targeting the EVM, such as Solidity, but it can be compiled into anything that is friendlier for ZK, and it does not need to originally be an EVM at all.
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Zircuit is building a bare-metal proving cluster. Based on benchmarks, we expect 40% performance boost over cloud environments in proving. Coming in prod at the of Q1.
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Congrats to BTC $100k!. What a great to speak about the innovation from @ZircuitL2 at @Emergence_Conf. @megaeth_labs.@cecilia_hsueh.@SkaleNetwork
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I’m excited to visit Taipei again in 2025! @EthTaipei was such an awesome experience this year!.
Finally can reveal this news! . ETHGlobal is coming to Taipei and would be hosted side by side with ETHTaipei conference. Looking forward to the new set of challenges and all the fun experiments we could do together!!!!!!!!!!!.
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Users should feel safe without needing to be security experts. @ZircuitL2 makes it happen through sequencer level security.
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Have you ever asked an AI engineer what makes chains and web3 projects friendly for AI agents? I have, and here’s what they say:. 1/ Natural-Language Friendly APIs: Provide a simple RESTful interface where endpoints, parameters, and errors are clearly described in human-readable.
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I'm working on some blog posts about Zircuit's roadmap. I will post them here when done. Safe to say already, reflecting on the journey this year, and what's coming next, is incredibly exciting!.
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EIP-7702: Smart account abstraction on Zircuit = the next evolution of user experience. Think gasless meta-transactions for every project with no extra dev effort, and safer DeFi interactions.
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Our AI-powered sequencer scans transactions in real-time for malicious activity, preventing hacks before they happen. Zircuit is the **only rollup** to offer this level of security.
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If you were wondering what's on the long term roadmap for Zircuit, here is the Part III of the series.
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🪂❤️.
Renzo frens, @ZircuitL2, will include ezEIGEN holders in the $ZRC Fairdrop!. Snapshot Oct 8, Block #20919999.Wallets with >3 ezEIGEN are eligible!. Additional claim information to follow!.
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With the numbers from July 2024 - December 2025, SLS on @ZircuitL2 showed false positive rate of only about 0.00045%.
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This is where we are headed with @ZircuitL2. This is the first post of the roadmap series. More coming next week!. Happy New Year everyone!.
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Hello Bangkok! We will be discussing whether all optimistic rollups eventually become ZK rollups at ZK Hub!
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Gm to all our friends, and especially those in Korea!. Probably nothing.
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That makes two of us.
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One of the biggest benefits of zkVMs over zkEVMs is that you don’t have to maintain parity between the logic of Geth and the circuits. Exploring.
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I’m going to join in on this request ❤️.
I am not against memes, but meme coins are getting "a little" weird now. Let's build real applications using blockchain.
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EIP-7702 support will come to Zircuit as soon as Pectra come live. Think seamless gas payments, meta-transactions, and a vastly improved user experience.
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And here is Part IV of the roadmap. It's probably the most exciting one so far, and covers the Product & Ecosystem Roadmap!.
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What’s next? Hacker houses, more hackathons, global events, and grants for Zircuit builders on @ZircuitL2 in 2025.
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Zircuit is setting the standard for rollup security with Sequencer Level Security (SLS). AI-driven transaction classification is the future of secure chains.
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10/ These ephemeral blob transactions can be used to post rollup data cheaply. This means that the cost of operating (and therefore using) a rollup (like Zircuit) will go down.
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❤️❤️❤️.
Another @EthGlobal hackathon in the books! . This weekend was all about learning by building, developing ZK contracts in @ZircuitL2 that enable communities to create customized challenges and allowing participants to join without revealing their identity.
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Scaling and fast transaction confirmations? Zircuit is reducing block times while maintaining performance. More transactions, less waiting.
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Need more speed? Zircuit’s GPU-optimized chunk prover hits 11 minutes for proofs. Chunk prover incoming Q1/Q2.
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6/ Therefore, I don’t think that active reordering is an avenue that we want to take.
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5/ Sandwich attacks are the case when reordering could help. But with an objective honest centralized sequencer, sandwiching someone else’s transaction doesn’t seem to be repeatedly feasible in the first place.
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Exploring ways to blend L1 transaction ordering with our AI-driven security systems.
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A good way to finish the year. Cheers to 2025!.
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The Zircuit Liquidity Hub came live today. It will provide @ZircuitL2 to work with the ecosystem partners, and bring new opportunities to the users. Congratulations to Zircuit’s community, partners, and huge appreciation to the devs!.
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Migration in progress….
ICYMI: @ZircuitL2 is currently the fastest-growing Ethereum L2, based on 7d % growth in assets bridged from the L1.
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We all like code-is-law. Imagine I leave my phone on the table and look away, is it okay for you to take it just because it doesn’t have a cage around it?. Code-is-law is not everything. Intentions matter too.
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Understanding historical exploits on blockchain platforms is essential for developing real-time defense mechanisms.
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Sandwich attacks extract value from DEX trades by front-running and back-running user transactions. On a rollup with a centralized sequencer, the only block builder is the sequencer. If the sequencer doesn’t engage in sandwiching, these attacks can’t happen. There are no.
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11/ We're looking forward to supporting both of these EIPs on #ZircuitL2 soon, and will roll out the upgrades as soon as they are ready.
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The upcoming Zircuit chunk prover upgrade uses Geth modernized with zkTries and Poseidon hash functions for a ZK-friendly and performance-optimized execution layer.
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With chunk prover + bare-metal proving + GPU optimizations, Zircuit is tackling:. - Lower proving costs.- Faster transaction finality.- Higher throughput. The SLS adds security for the users.
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I had a great conversation with Alex on the @epicweb3 podcast where we talked about L2s and @ZircuitL2's sequencer level security.
What's the future of Layer 2s? .How to make really secure rollup? .What's the best way to onboard devs to your project?. New @epicweb3 podcast with @dr_zircuit, co-founder @ZircuitL2!. Had a great time discussing L2s and rollups in general!. Available everywhere:.📍Youtube -
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1/ Last week, I had a great time at @proofoftalk participating in the ZK Proofs panel alongside @khem, @fernandezdiego, Anthony Day, & our moderator, @romaindillet
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Two years ago, I didn’t believe these things to be in the cards for another decade or so….
🚨1/ President Trump just issued a MAJOR executive order that touches on everything crypto. This is a BIG deal: stablecoins, Operation Chokepoint, developer protections, a new Crypto Task Force, and a Digital Asset Strategic Reserve. A breakdown of what @realDonaldTrump signed:.
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I am down next time I come to SF.
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Aside from a lot of other things, we are working on faster, more cost-effective bridging solutions, and smoother cross-chain transactions. Our goal is to made all experience with Zircuit as polished as possible! . Upgrades and updates coming!.
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The biggest lesson to be learnt from @soneium today is that if you have literally no clue how the stack you forked works, you probably shouldn't start a chain on it. This holds just as equally for everyone launching on a rollup-as-a-service. It's time to wake up to reality!.
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Hackers and builders, take note: Zircuit will be organizing hacker houses in 2025. A community-focused innovation hub awaits. Cat plushies will be present.
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Rollups don’t have to compromise. AI-enhanced, gas-efficient, and constantly improving. This is the new benchmark.
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We optimized Geth for better performance in Zircuit. We may potentially shift to Reth to gain even more.
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Shadow provers are already running. They ensure new proving tech works in production for extended period of time before we deploy. No surprises, just stability and performance.
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@Evan_ss6 SOL is $200 today. So you make a bet, invest $0.75M in SOL today. If it goes to $600, you have $2.25M worth of SOL, have to pay $1M for losing the bet, so you are $0.5M in profit. If it doesn’t, you get $1M for winning the bet, and have $250k + whatever your SOL is worth as.
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Posting calldata to an L2 that uses blobs as a DA is an interesting way of sharing Ethereum’s blob space. If the L2 doesn’t do anything weird with pricing, it will charge you just your fair share of the blob usage. You can use “classic” Ethereum transactions. The L2 will take.
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Throughout 2024, we first increased our proving speed by about 70%, and between July and now, further optimized the pipeline to reduce the operating cost by additional ~65%. The next major milestone for the Zircuit prover will be increasing the capacity enough so that template.
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Ethereum is scaling.
We are entering an era where Ethereum L2s will break transaction throughput records every week. All according to plan. Ethereum is scaling.
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Systems that alert to hacks have proved quite accurate. Hard to act upon, but accurate. So we removed the necessity to act on these alerts and let the sequencer do it for everyone on @ZircuitL2.
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I think that Gary declared Jan 21st the international party hangover day.
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Liquidity migration is in progress on @ZircuitL2.
Excited to announce the first batch of migrations is complete! 🚀. Over $150M+ assets migrated from Ethereum to Zircuit L2 Staking, saving users $10K+ in gas fees 💰. Migrated assets now earn boosted staking rewards & airdrops 🔥. View your migration here
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The maturity of Zircuit is progressing. Following reduction of the withdrawal period earlier this week, today, we removed all volume throttling on withdrawals. The roadmap is set and we’re on it. Thank you for the good work, team!. Thank you for the support, community!.
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Sharing blobs is probably what’s going to happen first.
Look bros, we don't know what will happen once blob capacity is hit (I'm banking on behavior changes amongst L2s), but what we know is that day is coming soon. We're approaching not-free levels and seeing more L2s opting in to EthDA. @inkonchain confirmed they were in
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