* Core protocol & blockchain developer at @fhenix, Building FHE so onchain data stays private. * Co-Founder & developer of @ArenaOfGloryNFT
Joined December 2016
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So excited to see @fhenix in Arbitrum's weekly recap 🚀💪🏼
Stablecoins, tokenization and confidentiality belong in the same conversation. A programmable economy should let apps use sensitive data without making it public by default.
This week on Arbitrum:
The programmable economy continues to grow across revenue, stablecoins, privacy, tokenization and more.
> Arbitrum One has generated $300K+ in priority fee revenue, with 21M transactions using PGA in just a month after launch.
> Arbitrum’s Founder House with Robinhood Chain kicks off in Singapore with over 125 founders joining from across the globe to bring their products onchain.
> 2nd cohort of Arbitrum Mentorship Program launches with Robinhood Chain to connect founders with VCs and pitch startup with $100K in prizes.
> $USDG lending on @Morpho has reached a new high of $82M+ in TVL.
> @GenLayer launches on Arbitrum bringing the adjudication layer to the agentic economy.
> @aeroxyz has landed on Arbitrum allowing users to trade and more.
> @mayan has moved $2.5B+ to Arbitrum, including $2.3B+ in stablecoins.
> $USDG adoption continues to grow on Arbitrum with support from @symbiosis_fi.
> @fhenix launches on Arbitum bringing FHE-powered confidentiality to apps and users.
> What excites @Larvandweb3 from @ArbitrumNewsDAO about the programmable economy is helping the teams building new financial primitives find the support and community they need to grow.
> @isometricfi just landed on Arbitrum Sepolia testnet.
> @keeper_wallet is now live on Arbitrum.
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Borrow stablecoins against your Bitcoin without selling.
Useful, but the privacy question matters too: who can see your collateral, debt and liquidation levels? Financial privacy should be part of the product, not an afterthought…
Ledger Lets Bitcoin Holders Borrow Without Selling
Ledger (@Ledger) has added Crypto Loan to its wallet app, letting users borrow stablecoins against wrapped Bitcoin $BTC.
Users can borrow $USDC or $USDT against $WBTC and $cbBTC, without selling those assets. Yield(.)xyz (@yield_xyz) handles the integration, while Morpho’s (@Morpho) smart contracts manage lending activity.
However, liquidation remains possible if collateral loses enough value.
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engineers run on coffee, a lot of it.
so we gave the coffee a rocket and sent it to mainnet.
CoFHE is live ☕🔐 @fhenix
this is a big part of why mainnet day was calm for us.
the stressful part happened weeks ago, with @ConsensysAudits going line by line through code where the usual smart contract assumptions don’t hold.
thanks for the fresh eyes 🫡
Fhenix is live on Ethereum and Arbitrum mainnet.
We're glad to have supported this launch with a security audit of their contracts. Dual-mode confidential tokens are now available.
Congratulations to the @fhenix team on reaching this milestone. Onchain security is shared work.
Full audit report ⬇️
AI can help you write the code, but creativity, dedication and teamwork are still on you.
Bro @liorbond , this has been one hell of a ride. Still can't believe it's out tomorrow!!! 🚀
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CoFHE goes live on mainnet in 2 days.
After 14 years in cybersecurity and blockchain, here are 5 things I’ve learned building Fhenix and CoFHE.
Some engineering lessons, some appreciation, and a little bit of AI-induced existential crisis. 👇
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USDG brings 1:1 backing and monthly reserve reports to Arbitrum. that's a foundation worth building on.
BUT - nobody wants their salary, spending and savings on public display.. the next step should be confidential tokens powered by FHE.
$USDG from @Paxos is now live on Arbitrum.
Joining the Global Dollar Network brings Arbitrum closer to GDN members like @RobinhoodApp, @krakenfx, @OKX and more.
We'll grow $USDG as a core asset on Arbitrum One through partner incentives and protocol-level integrations. 🧵
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pre-IPO AI exposure onchain is huge, but every position, every buyer, every exit is readable by anyone..
private markets need private state, or the smart money stays offchain
LATEST: @Ondo Finance launches Ondo Private Markets, bringing pre-IPO company exposure onchain with 24/7 tradeable tokenized notes starting with an AI company this week and expanding to robotics, biotech and cybersecurity.
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I love seeing how AI is forcing the privacy conversation forward.. @VitalikButerin just wrote "the more careful you are about what data you give, the less it can help you" and that's EXACTLY the tradeoff we're killing at @fhenix, for onchain data.
Doing a bit of a self-experiment.
Goal: use my personal health and travel data to provide personalized diet and exercise recommendations for me, using frontier models but in a way that avoids leaking to them any private information.
Strategy: use a local model (Qwen 3.8 Flash Next) to orchestrate, and use powerful remote models as a tool call to benefit from higher-level thinking and knowledge that the local model does not have.
Three-layer approach to privacy:
Avoid leaking personally identifiable information, or leaking my identity through writing style -> local model writes the queries to the frontier model, not me
Avoid leaking who I am through the payment channel -> zkAPI
Avoid leaking who I am through networking / IP -> Tor
You need all three (and finally we have all three, at least to some extent)
A skill file teaches the local model when and how to construct minimally-data-revealing requests to remote models. Use zkAPI-wrapped-with-Tor as a CLI tool.
And everything works! I got the recommendations back, info from frontier models helped to improve them.
Main deficiencies:
* Tor is really not optimized for request-by-request de-linking, which is the only form of network-layer privacy that really makes sense in today's world (long-running identifiers are too fragile). Probably not private enough, and latency 10-100x higher than it could be, at the same time.
* The skill file's request construction strategies are definitely far from optimal.
* Qwen 3.8 Flash Next is still too slow for comfort. It's comfortably running at 20-30 TPS, but it would only really start to feel fast at 100+
* There is a tradeoff: the more careful you are about what data you give to a remote model, the less it can help you
github.com/ethereum/zkapi/pu…
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$1,793,
That's how much Blast made last month. The same chain once held $2.2B!
Sad to see a project that big shut down, and respect to the team for an orderly wind-down.
But there's a lesson here for every L2:
Blast will be shutting down.
We launched Blast with the goal of building a self-sustaining chain for users and developers. Unfortunately, the economics of operating the chain no longer make sense: the ongoing costs of maintaining Blast exceed the revenue generated by the L2, and we do not see a credible path to making the chain economically sustainable.
As a result, we've made the difficult decision to wind Blast down.
We're sorry to the users and developers who believed in Blast, built on it, and supported the ecosystem. Our priority now is making the shutdown as smooth and safe as possible.
We're asking all users to withdraw their assets from Blast to Ethereum mainnet, including any balances held in the Blast PWA.
To make this easier, we will be reducing the withdrawal delay to 24 hours.
As part of the shutdown process, we'll first begin withdrawing Blast's Lido assets. This process is expected to take approximately one week. During this period, withdrawals will temporarily be unavailable, even after the withdrawal delay is reduced to 24 hours.
Once that process is complete, withdrawals will resume with the new 24-hour delay.
Users will have until October 26, 2026 to withdraw through the normal Blast interface.
After October 26, assets will remain withdrawable, but users will need to interact directly with the Blast bridge contracts on Ethereum L1. We'll publish detailed instructions before then.
We strongly encourage everyone to withdraw their assets to Ethereum mainnet before October 26.
Open USD through Mastercard is a HUGE step for onchain money 💪🏼
While public settlement works, public balances for businesses don't.
Encrypted balances with FHE keep it composable and private, aka real-life usable.
Mainnet soon @fhenix 🔒☕️🚀
Businesses have more ways to move value than ever before.
The challenge isn't creating more forms of money. It's helping businesses use them.
Mastercard will make Open USD (OUSD) available through @BVNKFinance, helping customers access new forms of value movement through infrastructure they already use.
It's another step toward a more connected and interoperable multi-money future.
Read more from Jorn Lambert: mastercard.com/us/en/news-an…
Tokenized stocks on a public ledger means anyone can read your whole portfolio. Confidential tokens fix that: encrypted balances and transfers, still composable onchain. That's what FHE unlocks.
The Arbitrum platform is becoming the underlying financial plumbing and shared liquidity layer for finance
Hear from @ajwarner90 on how users in Europe can already access tokenized stocks on Robinhood via Arbitrum with the same UX they know and love
🛫 📦💰
attended the @fhenix rooftop soirée at KBW and copped privacy cards with encrypted values
who wants dibs on the next drop?
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just decrypted the @fhenix mainnet date 👀
not spoiling it though, go do it yourself ⤵️
Fhenix goes mainnet this October.
For years, transacting onchain came with a tradeoff: participate in open, composable markets and, with it, surrender the privacy of your financial activity.
Dual mode turns what was once an inevitable tradeoff into a property of your asset itself.
For the first time, the same asset can be public when you want and confidential when you need- without sacrificing composibility or fragmenting liquidity.
The era of dual mode money is here, more soon.
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The legend @yonatanerez is gonna speak at the Privacy Summit during @token2049 , if you’re in web3 privacy - make sure to be there 🚀🔒
Our Head of Product @yonatanerez will be speaking at @StarkWareLtd’s Privacy Summit during @token2049
catch him live
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Flight is currently at 2h 50m delay.. their €7 voucher didn’t even cover this iced coffee, but the next 10 minutes are about to cost them €45,000 in payouts 🫣💸
Same lab. Same bot.
One change: CoFHE by @fhenix ☕️🔒
Amounts, votes and bids are encrypted in the wallet and stay encrypted through the EVM, the blocks and every node.
The bot still sees the swap. It just can't do anything with it, so you’re safe.
Asked Opus 5.5 to build a 3D lab of how Ethereum actually works.
Wallets, mempool, EVM, blocks, nodes. All live 🤯
Then I clicked on a transaction 👀
Every salary, rent payment, vote, "sealed" bid and clinic visit, readable by every node on earth.
Watch the bot sandwich marco's swap at 0:18. It read his exact slippage from the mempool.
Play with it: claude.ai/artifact/KxZzgiyGZ…
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