Ed Felten @EdFelten

Co-founder @Offchain. Member @PCLOB_GOV. Professor of Comp Sci & Public Affairs Emeritus @Princeton. Prev: Deputy US CTO at White House. Personal account. cs.princeton.edu/~felten Princeton Joined May 2008

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Arbitrum @arbitrum

2 weeks ago

Arbitrum has been named to the inaugural @FortuneMagazine Crypto 100. Together with our ecosystem, we're building the finance-native platform powering the programmable economy for builders, enterprises and institutions. Thank you to everyone building alongside us.

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Steven Goldfeder @sgoldfed

2 weeks ago

JUST IN: LG is looking to revolutionize the advertising industry, and they’re building it on Arbitrum 👀 fortune.com/2026/06/11/lg-…

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Ed Felten @EdFelten

a month ago

Sad to hear of the passing of Peter Neumann, a respected and beloved mentor to me and many other infosec researchers. Among other things, Peter helped open my eyes early to the role of tech in public policy. We need more like him. The Times has a good obit: nytimes.com/2026/05/17/obi…

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Ed Felten @EdFelten

2 months ago

This is a big step for us at @Offchain. Over the years, our team has been contributing and bringing new innovations across different layers of the stack: Scaling Ethereum: @arbitrum Advancing L1 consensus: @prylabs Innovating smart accounts: @zerodev_app Each has played a role in pushing crypto infrastructure forward. Bringing them together puts us in a strong position to support institutions coming onchain with the flexibility and ownership they expect. Excited for this new chapter and looking forward to sharing what’s coming with everyone.

Offchain @Offchain

2 months ago

We're now Offchain. A new chapter focused on powering institutions as they move onchain. What we’ve built across @arbitrum, @prylabs and @zerodev_app is coming together into something bigger. This is just the first step. Stay tuned. offchain.io

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Ed Felten @EdFelten

2 months ago

@donnoh_eth @hasufl @spreekaway I don't speak for the Arbitrum community. But my view on this is that one shouldn't weaken a critical security parameter without first doing a serious written risk analysis.

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Arbitrum @arbitrum

2 months ago

x.com/i/article/2034…

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Ed Felten @EdFelten

3 months ago

If you're at EthCC, come see my mainstage talk at 11:15, with some real talk about how we can get the Eth stack to a billion users, and an update on Arbitrum advances.

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Ed Felten @EdFelten

4 months ago

@econcallum @alexcdot I responded to clarify because the original tweet said "vulnerability" and "at-risk" which reads as less neutral.

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Ed Felten @EdFelten

4 months ago

@econcallum See the top of section 2. "The term 'exposure' is used so as to be agnostic as to the effects of AI on the occupation, which could involve substitution or augmentation depending on various factors associated with the occupation itself."

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Ed Felten @EdFelten

4 months ago

@econcallum This point is often misunderstood, unfortunately. Our paper's metric relates to the *magnitude* of impact on a job, but not the *direction*. Direction is much harder to predict.

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Ed Felten @EdFelten

4 months ago

This is a very cool moment. Seeing the technology we at @Offchain Labs have been building for the past 8 years adopted by a Fortune 500 company is incredible. The best part about deciding what features to ship for the Arbitrum stack (Stylus, Timeboost, the new pricing algorithm, etc.) is that we can now do so with multiple environments in mind that all have different target use cases, who may or may not want to adopt specific features: @Arbitrum One for general finance and settlement @RobinhoodApp as rails for their app and DeFi for Stock Tokens @edgeX_exchange for pure execution on their perps exchange Just to name a few! While this is only a testnet, I’m very excited to see what developers will be able to build with Stock Tokens as assets with Arbitrum powering all of it.

Arbitrum @arbitrum

4 months ago

Robinhood Chain testnet is now live on the Arbitrum platform. Phase 1 focuses on developer onboarding and infrastructure testing: Testnet gas + Stock Tokens Contract deployment Bridging + explorer visibility This allows tokenized asset flows to be tested without production

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Joseph Lorenzo Hall, PhD @JoeBeOne

5 months ago

Deeply saddened to hear of the passing of Dave Farber. He was a true pioneer who had major influence on the architecture of the Internet and tech policy. Rest in peace to one of the most "Interesting People" our field has ever known. mailarchive.ietf.org/arch/msg/ietf/…

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CCN - Crypto Citizens Network @CCNCitizens

5 months ago

Day 1 at @DAF_Global 📌 🇬🇧 Who owns the rails of tokenized finance? 🧐 That question matters more than which asset gets tokenized first. Ed Felten (@EdFelten), Co-Founder & Chief Scientist at Offchain Labs (@Offchain), put it plainly 👇 “Because of the optionality that comes from having been here early, if this technology does end up becoming the main rails, you’re in a position, first of all, to profit from it, but second, to have some influence, more influence over how it develops. I’m a big believer that these rails are superior in the long run as we continue to build them out.” No one knows exactly where this technology is heading 🤔 That is exactly why early exposure matters. This is not just about upside 📈 It is about influence, standards, compliance, and interoperability as the next financial rails take shape. #Tokenization #DigitalAssets #FinancialInfrastructure #Compliance #Regulation #Interoperability #Blockchain #TradFi

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Steven Goldfeder @sgoldfed

5 months ago

Arbitrum One soars past 1100 TPS and sustains 150 mgas/second. Arbitrum’s new gas pricing algorithm is being battle tested today and the network is rising to the moment, with record throughput and low gas prices as activity on the network surges.

𝗵𝘂𝗻𝘁𝗲𝗿 @BFreshHB

5 months ago

BREAKING: @arbitrum soars past 1100 tps

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Ed Felten @EdFelten

6 months ago

How and why Arbitrum is the home of DeFi, more now than ever.

Ryan De Souza @_ryandesouza

6 months ago

x.com/i/article/2005…

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Urano @UranoEcosystem

6 months ago

The chain with the highest net inflows in 2025 tells a clear story: capital is consolidating around scalable, liquid, and production-ready infrastructure and @arbitrum is leading that shift. Arbitrum Everywhere

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Steven Goldfeder @sgoldfed

6 months ago

When building Arbitrum, protecting users against front-running was always a top level design principle, right next to security. Over the years, I’d very often get asked why this was so important and the answer was always twofold 1. I view it as part of our basic duty to protect users. 2. In traditional markets, front-running is illegal. Regulators might not have caught up to crypto yet, but they will and the same principles would and should apply.

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Thomas Coratger @tcoratger

7 months ago

Debate on Ethereum’s L1 design is healthy and necessary. For a thoughtful, research-driven take on instruction set choices, I recommend: “Why RISC-V Is Not a Good Choice for an L1 Delivery ISA, and Why WASM Is a Better One” by @EdFelten 🔗 ethresear.ch/t/why-risc-v-i…

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0xnagu @0xnagu

8 months ago

1/10 New blog post: a control-theoretic view of Arbitrum’s constraint ladder gas pricer, why current rules overreact to harmless bursts and how a “constraint ladder” may fix it. One price, multiple time horizons, stable behavior.

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Aniket Kate @aniketpkate

8 months ago

Crypto-means-cryptography literature gives huge importance to saving communication rounds, making protocols non-interactive. This typically comes at the cost of making protocols computationally expensive. FHE and (non-interactive) publicly verifiable secret sharing are good examples of this phenomenon. Some in the crypto-means-cryptocurrency space have also taken up that model: make the protocol non-interactive and go for beefy machines. [I agree non-interactive protocols also look easy to understand/cool to propose. I have done so myself. say eprint.iacr.org/2023/451] However, in experiments/practice, I am regularly finding that interactive protocols are regularly beating non-interactive protocols. Logarithmic-round protocols are regularly beating constant-round protocols with the same communication overhead. Modern networks have much improved communication bandwidth and low latency, and we should not disregard their capabilities.