LorΞnzo Sicilia retweetledi
If you write Rust and you've ever wondered whether blockchain is relevant to your backend work, I built something that points to a concrete answer.
🧵👇
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LorΞnzo Sicilia
4.2K posts
LorΞnzo Sicilia
@aboutlo
Head of Technology @Arbitrum Foundation 💙 - If times do not ask your best part, invent other times. cit. Baolian book II vv 16-17 prev: @OVioHQ, @consensys
London & Milan Katılım Kasım 2010
761 Takip Edilen1.4K Takipçiler
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Uttam@uttam_singhk
🚨 Tempo & Stripe just launched MPP which is a new open standard internet-native way for agents to pay and if you've been following x402 standard, this is gonna be v interesting MPP is more of a superset of x402 imo x402's exact flow maps directly onto MPP's charge intent, so existing integrations carry over but there are additions to it What MPP adds: → Payment-method agnostic: stripe cards, @tempo stablecoins, custom rails, not just stablecoins on blockchain → Flexible billing models: one time charges, pay-as-you-go sessions, per token streaming, and payment channels, not just per-request → Agent native: purpose-built for LLM agents — session intents pre-authorize budgets for sub-100ms latency and near-zero per-request overhead → Production-grade primitives: cryptographic challenges, credentials, and receipts exchanged over standard HTTP headers or MCP/JSON-RPC bindings FYI there is no Facilitator component
ART
LorΞnzo Sicilia retweetledi
This is exciting work from @powdr_labs: ~1.5x speedup & a 5x-6x reduction in memory from ZK proving WASM instead of RISC-V 🔥 (and this is without circuit optimizations, autoprecompiles, etc)
While most zkVMs currently prove the RISC-V ISA because of advantages like a limited instruction set, it is far from obvious RISC-V will continue to be the winner in the long term.
It’s worth keeping in mind how new the field of zkVMs is: @RiscZero released the first production grade zkVM only in 2022, and commercially viable real-time mainnet EVM proving was only just achieved earlier in 2025 by @SuccinctLabs
This is why we at @Offchain proposed that @ethereum L1 should use WASM as the delivery ISA instead of RISC-V.
WASM is designed as intermediate abstraction layer rather than the final execution target. WASM as a dISA can allow smart contract proving (including proving on RISC-V or WASM or other more ZK friendly ISAs), programming, and execution to evolve freely, rather than constraining each other.
This is separation of a delivery ISA from a proving ISA is what we already do today for ZK proving @Arbitrum with Succinct’s SP1 Hypercube. By compiling WASM code into RISC-V code, we are able to ZK-prove not only the core Arbitrum STF, but also user-supplied Arbitrum Stylus smart contracts written for WASM (including Rust, C/C++, Move, AssemblyScript based programs)
powdr labs@powdr_labs
Announcing powdr-wasm! powdr-wasm is an optimized zkVM for WASM, built on top of @openvm_org and the novel 𝑐𝑟𝑢𝑠ℎ ISA. Early benchmarks already show 1.5x fewer trace cells & faster proof times compared to RISC-V (OpenVM). It also supports Go guests via WASI! 👇
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Join us at ArbiLink Cannes during ETHCC on April 1st! 🇫🇷
Connect with founders and investors across the Arbitrum ecosystem with great conversations on AI and infra over drinks and canapés.
All are welcome. Register today:
luma.com/arbilink-ethcc…
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It’s all because of me.
Polymarket@Polymarket
BREAKING: Anthropic report shows Israel ranks higher than any country in per-capita Claude usage.
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LorΞnzo Sicilia retweetledi
Today, the Arbitrum Foundation published its sixth Transparency Report.
The report reflects on key ecosystem milestones from 2025 and the Foundation’s role in supporting ecosystem growth, institutional adoption, governance, and network scaling.
blog.arbitrum.foundation/the-arbitrum-f…
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LorΞnzo Sicilia retweetledi
🚨REGISTER NOW: The Contender Submission phase for the March 2026 Arbitrum Security Council election is live!
Think you’re a good fit or know someone who is? You have 1 week from now until Mar 22 to register👇
forum.arbitrum.foundation/t/march-2026-s…
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Devs waiting for ArbOS 60 Elara
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Lumi@zkLumi
ArbOS 60 Elara will increase Stylus contract code size limit by 4x to 96 KB (beyond the EVM limit by chunking code into multiple fragments), addressing the largest pain point faced by devs 🧑💻 What does Arbitrum Stylus enable? ✅ Multi-Language Support: Stylus extends beyond EVM & Solidity with support for Rust, C/C++, Move, and AssemblyScript languages, opening the door to over 20million existing developers, and mature battle-tested libraries. ✅ Performance: Stylus contracts offer significantly lower gas costs for compute- and memory-intensive workloads compared to pure Solidity EVM contracts. - E.g. matrix multiplication is 99%‼️cheaper in Stylus than EVM. ✅ Safety: Build safer with affordable reentrancy detection, and real world tested cryptographic libraries. Build Stylus apps on @Arbitrum now! 🧑🚀 docs.arbitrum.io/stylus/gentle-…
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LorΞnzo Sicilia retweetledi
🚨NEW VIDEO ALERT🚨
The Arbitrum NYC Founder House was an incredible 3-day building experience w/:
💵 $340,000 in prizes
📜 420+ Applications
🏆 5 Winning teams
It was great being able to network w/ crypto founders and mentors across the ecosystem!
youtube.com/watch?v=iH6_hC…
YouTube
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LorΞnzo Sicilia retweetledi
For the fifth episode of the Arbitrum Everywhere series, we’re joined by Ethereum researcher @ryanberckmans.
We break down how Arbitrum is a reliable platform for businesses to scale onchain.
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LorΞnzo Sicilia retweetledi
If you are an early stage DeFi builder, you won’t find a better home than Arbitrum and I can’t imagine mentorship from a stronger cohort.
We’ll build the programmable economy together.
Arbitrum@arbitrum
Let’s welcome the first mentors supporting founders in the Arbitrum Mentoring Program starting April 13th: - @variational_io - @USDai_Official - @pendle_fi They’ll work with teams on product strategy, go-to-market, liquidity design, distribution and fundraising narrative. Early-stage teams looking to build on the Arbitrum platform can apply below: tally.so/r/aQdj2W
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LorΞnzo Sicilia retweetledi
ICYMI: Founder House NYC wrapped with founders bringing their innovations onchain on the Arbitrum Platform.
80+ teams came together to build and compete for $340K in prizes and grants with support from @RobinhoodApp Chain and the Arbitrum ecosystem.
Read more:
blog.arbitrum.foundation/nyc-founder-ho…
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LorΞnzo Sicilia retweetledi
Excited to be part of the Arbitrum Audit Program 🤝
Arbitrum Governance@arbitrumdao_gov
The Arbitrum Audit Program has released its 2nd Transparency Report. The past quarter marked a shift from volume to maturity with stronger pipelines, better-prepared teams, and more effective execution Here’s what mid-year progress looks like👇 forum.arbitrum.foundation/t/arbitrum-aud…
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LorΞnzo Sicilia retweetledi
ICYMI: The Arbitrum Audit Program is still open!
If you’re building and preparing to ship, you can get support to audit and secure your contracts.
Apply below 👇🏻
tally.so/r/3xzEzv?progr…
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Building on @Arbitrum?
Here's how to grow your user base fast 👇
Join our hands-on workshop to learn how to onboard users instantly & tap into liquidity across popular ecosystems, powered by Avail Nexus.
📅 March 12th, 3pm UTC
Live on X @ArbitrumDevs & Arbitrum discord
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LorΞnzo Sicilia retweetledi
We’re live in 40 minutes! 📷
Join @hummusonrails & @0xabhk for a hands-on workshop on how to onboard users instantly and tap into liquidity across major ecosystems.
Live on X @ArbitrumDevs & discord.gg/arbitrum
Avail@AvailProject
Building on @Arbitrum? Here's how to grow your user base fast 👇 Join our hands-on workshop to learn how to onboard users instantly & tap into liquidity across popular ecosystems, powered by Avail Nexus. 📅 March 12th, 3pm UTC Live on X @ArbitrumDevs & Arbitrum discord
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TL;DR do more on Arbitrum 💙
Derek Lee@leeederek
ArbOS 60 Elara proposal is live! Top features I'm excited for: - multidimensional gas pricing = more capacity, smarter pricing - 96kb smart contract size limit (Stylus) = do more with Stylus check it out 👇 forum.arbitrum.foundation/t/constitution…
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LorΞnzo Sicilia retweetledi
The other side of this is that if you are a publicly listed company and are considering also launching a token, I think it is a terrible idea, particularly in this market, unless the product absolutely needs it.
I don't think you want to be confusing investors or the markets about where the value sits.
There has been a lot of discussion about Coinbase thinking of launching one for Base. I don't really get why they would do that. None of the other "exchange tokens" have publicly listed equity.
Think its a big mistake.
A.J. Warner@ajwarner90
The most interesting thing about the proposal is the team's willingness to continue to iterate and experiment on ownership structures despite feeling seemingly entrenched. What this proposal doesn't mean is that tokens should not exist. It means that there are certain people who believe a token structure doesn't make sense for the Across protocol at this time. Crypto has way too many tokens. Probably 99% of all tokens were launched in the last two years as organizations pushed memecoins, creator coins and other forms of speculation very aggressively. That was a catastrophic mistake. Tokens often do have function. They are easier to utilize in crypto than equity, and they are also easier to manifest a representation of decentralized governance. Tokens are not bad or pointless. Tokens that don't have any economic value associated with them are. There are still many use cases where equity (even tokenized equity just simply does not work). These distinctions matter. Congrats to the Across team on this proposal. Tracking closely!
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