Santi

Principal PMM @Offchain

[Arbitrum @arbitrum]

Financial systems set a high bar. The programmable economy needs infra that can meet it.

Here's what we're building for businesses:

- Predicable unit economies
- Compliance engine
- Configurable confidentiality
- Faster settlement times
- Priority gas auctions

And more 👇

[Arbitrum @arbitrum]

LG Electronics is building with Arbitrum.

LG's blockchain team, part of the company's R&D division, is piloting an onchain advertising network on Arbitrum.

The full story, including @sgoldfed's conversation with
@FortuneMagazine:

https://t.co/mIvlp6ip6h

[Arbitrum @arbitrum]

ICYMI: @Mastercard taps Arbitrum for global stablecoin settlement.

Always-on payments, built for the programmable economy.

[Santi @seminoxyz]

CashApp's ~59 million monthly active users now have access to USDC on @arbitrum. A massive step forward for the programmable economy.

[Cash App @CashApp]

Stablecoins are here on Cash App.

Send and receive USDC that auto-converts to USD, fee-free to start.

No wallet setup. No extra app. Just Cash App.

[Offchain @Offchain]

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.

https://t.co/5KulpAzuXa

[Arbitrum @arbitrum]

https://t.co/62NIUovmnh

[Arbitrum @arbitrum]

L1 or L2?

For enterprises, it’s one of the most important product decisions.

Here’s how to think about the tradeoffs. 👇

https://t.co/LwbRIbt4Ho

[Mastercard @Mastercard]

A week ago, we introduced the Mastercard Crypto Partner Program with 85+ partners.

Today we’re at over 100 and counting

[Arbitrum @arbitrum]

We brought together some of the most ambitious founders in crypto at Arbitrum's Founder House NYC. 🗽

Builders locked in and launched new primitives on the Arbitrum Platform.

Here’s what they shipped. 👇

[Arbitrum @arbitrum]

Fees on the Arbitrum Platform have become more predictable during peak demand since the ArbOS Dia upgrade.

For businesses operating onchain, predictable fees improve cost modeling and support reliable system design.

Making programmable economies viable at scale.

[Arbitrum @arbitrum]

Here’s what bringing real financial products onchain looks like with Robinhood:

1️⃣ Start on Arbitrum One

→ Tap into deep shared liquidity
→ Tokenize 2K assets for EU users
→ Find early PMF

2️⃣ Activate Robinhood Chain Testnet

→ Onboard builders
→ Test infrastructure
→ Refine UX

3️⃣ Launch Robinhood Chain Mainnet

→ Migrate assets to dedicated rails
→ Enable 24/7 trading
→ Self-custody stocks & ETFs
→ New DeFi & RWA primitives

Design freedom is what makes this possible.

That’s why @RobinhoodApp chose the Arbitrum Platform.

Testnet is now live. 👇

https://t.co/t7EGT4VMvd

[Bleap @BleapApp]

our cashback programme has had an upgrade.

activate your virtual card in minutes to start earning up to 20% cashback on your everyday spending.

no opt-ins needed, just tap and automatically get paid in USDC.

powered by @arbitrum

[CoinGecko @coingecko]

JUST IN: $76B Robinhood launches its own chain, an Ethereum L2 built on Arbitrum. Its public testnet is now live.

[Arbitrum @arbitrum]

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 risk.

⚠️ Testnet assets have no real-world value.

[Arbitrum @arbitrum]

Since the ArbOS Dia upgrade, Arbitrum One is handling demand spikes more gracefully with smoother, more predictable price changes that stay lower under the same load.

⚫ Simulated price before the upgrade
🔵 Actual gas price after upgrade (Jan 13)

[Santi @seminoxyz]

Very slick seeing @arbitrum Stylus expand support for languages like Move. The compiler and CLI should make it fairly straightforward for apps to cast their net into Arbitrum's eco.

Arbitrum really is everywhere.

[Rather Labs @rather_labs]

It’s official, you can deploy Move Smart Contracts on @arbitrum!

After months of work, we’re proud to introduce the Move-to-WASM compiler for Arbitrum’s Stylus Virtual Machine.

This is great news for Move developers: you can now build in one of the largest and most well-funded ecosystems, while benefiting from Arbitrum’s tooling, incentives, and developer support.

If you need any help or guidance while using the compiler, feel free to reach out, we’re happy to help.

Move on Arbitrum is live 💫🚀

https://t.co/6gwvnbcUej

[Arbitrum @arbitrum]

Last teaser before we post our first Arbitrum Everywhere interview...

Can you guess who it'll be?

[Huddle01 @huddle01com]

📢 Announcing HuddlePad 🔊

An @arbitrum native launchpad for token launches

Based on Continuous Clearing Auctions pioneered by @Uniswap

[Arbitrum @arbitrum]

The ArbOS Dia upgrade is now live on Arbitrum ☀️

✅ Smoother fees when demand spikes
✅ Foundations for higher throughput
✅ Passkeys/biometrics for user onboarding
✅ New interop gas tokens for Arbitrum chains
✅ Ethereum Fusaka upgrade

Learn more: https://t.co/QLCvXGwtPb

[Arbitrum @arbitrum]

Coming to Arbitrum: Smoother Fees, Higher Throughput

The new ArbOS Dia upgrade will bring users, builders, and operators:

- More predictable gas prices on Arbitrum
- Improved mobile & enterprise-grade auth tools
- Ethereum Fusaka support

Here’s the rundown 👇