Builder's Block #005 - Arbiverse, DevConnect & x402 in a Nutshell

📣 Announcements

Key updates from the Arbitrum ecosystem and the Foundation.

• $500K in funding to build your project

Take your Arbitrum project to the next level with crypto's top accelerator. Alliance launched the ALL16 program, and the deadline is about to expire, hurry up and apply to innovate on-chain!
➡️ Apply now

• Security Council Member Election Results

The September 2025 Security Council Election has concluded! 🎉 Six new members have been elected to help safeguard the Arbitrum ecosystem and uphold the DAO’s governance integrity.

The grace period is underway until Nov 21 - this allows the election results to register with the Security Council contracts across relevant chains.
➡️ Learn More about Security Council Elections

• Onchain history - Arbitrum One Surpasses 2 Billion Transactions

Reaching this milestone marks a key moment of maturity for the Arbitrum ecosystem and highlights the robustness of its infra (sequencer, roll-up batching and data availability).

At the same time, it crossed $400B in swap volume on Uniswap — meaning Arbitrum is the place for deep liquidity.

➡️ CoinLaw Arbitrum Statistics 2025

📚 Learn & Build

New learning drops and hands-on resources from across the Arbitrum ecosystem.

• x402 Payments on Arbitrum — Build the next wave of payment apps
Dive into our x402 breakdown packed with actionable insights for developers working on next-gen cross-chain communication. Check out the full article and explore the x402 repository linked below.
➡️ Learn more about x402

• RedStone Pushes Oracle Performance Further with Arbitrum Stylus

RedStone has deployed a new oracle implementation on Arbitrum Stylus, showcasing significant efficiency gains for onchain data feeds. Up to 34% lower computational overhead and 50% cheaper per-feed costs compared to traditional EVM-based implementations.
➡️ Learn from Restone what’s to come for blockchain infrastructure

• Particle Network Refreshes Arbitrum Integration Docs
Particle Network has released an updated version of its documentation with improved integration steps for wallets and account abstraction (AA) flows on Arbitrum.
The refresh introduces clearer guidance on implementing Universal Accounts (UA) — Particle’s infrastructure that enables chain-agnostic user experiences.

With Universal Accounts, users can seamlessly interact with your Arbitrum dApp even if their assets reside on another chain, simplifying cross-chain onboarding and wallet management.
➡️ Learn how to make your Arbitrum dApp shared across chains

🔦 Ecosystem Highlights

Fresh launches and standout threads from around the Arbitrum ecosystem.

• Boros launches on Arbitrum One

Built by the Pendle Finance team, Boros introduces a novel derivative market focused on trading funding rates (e.g., BTC/USDT and ETH/USDT) onchain.
➡️ Learn how to capture yield and volatility with Boros

• Capx Chain goes live on Arbitrum
Capx AI has launched its mainnet infrastructure on the Arbitrum Orbit stack as an L2 tailored for tokenizing, trading, and building AI-native applications
➡️ Dive into the infrastructure powering the AI App Economy

🗓️ Events

Workshops, hackathons, and ecosystem meetups to watch.

• Nov 22: ETH/ACC — Founder & Builder Meetup in Buenos Aires

The ETH/ACC Founder & Builder Meetup invites developers, founders, investors, and ecosystem partners to connect and share insights ahead of upcoming Ethereum events.

When & Where:
⏰ Saturday Nov 22nd
📍 La Rural, Buenos Aires
🗓️ RSVP required
➡️ Register NOW

• Nov 20: Offchain Labs Frontier Forum - Where Moonshot Ideas Take Off
Join Chase Allred, Partnerships Manager at Offchain Labs.

When & Where:
⏰ Thursday Nov 20th
📍 Planetario Galileo Galilei, Buenos Aires
🗓️ RSVP required
➡️ Register NOW

• Nov 19: ArbiVerse is coming to Devconnect in Buenos Aires

Join us for Arbitrum’s massive flagship event with interactive builder showcases, talks, fun mini games, live music and food. And there's more!

When & Where:
⏰ Wednesday Nov 19th
📍 La Rural, Buenos Aires
🗓️ RSVP required
➡️ Register NOW

• Nov 18: DuneCon 2025 — Data, Insights, and Onchain Innovation
Hear from Steven Goldfeder, CEO and Co-Founder of Offchain Labs, at DuneCon 2025.

When & Where:
⏰ Monday Nov 18th
📍 Buenos Aires
🗓️ Tickets required
➡️ Get tickets

• Nov 13: Offchain Labs at ETHGlobal Devconnect — Building Farcaster Mini-Apps with Arbitrum
Join Hunter Brea, Senior Community Strategist at Offchain Labs, for a hands-on session exploring how to build Farcaster Mini-Apps powered by Arbitrum. Perfect for devs curious about onchain social and creative apps.

When & Where:
⏰ Wednesday Nov 13th
📍 Devconnect main venue - Workshop space (Yellow Pavilion)
🗓️ RSVP required
➡️ Register NOW

🧵 Forum & Community Discussions

What builders are debating and proposing this week.

The ArbitrumDAO is actively evolving its governance tooling, incentive systems, and delegate transparency.

• OCL Proposal on L2 Gas Pricing Constraints
Offchain Labs (OCL) has initiated a discussion around new gas pricing constraints on Layer 2 networks, sparking debate on efficiency, fairness, and decentralization.
As this proposal evolves, it raises important questions about how fee mechanisms should balance user affordability, network security, and economic sustainability.
➡️ Read the Forum Thread

• AI Tooling for Governance via Tally
A working thread invites community input on how AI-driven features could enhance the governance experience in the ArbitrumDAO.
➡️ Read the Forum Thread

• L2BEAT Delegate Communication Thread
L2BEAT describes itself as an “independent, public-goods company committed to verification and fact-checking of Layer 2 claims." They provide regular updates on their voting activity, rationale behind votes, and other ongoing discussions.
➡️ Read the Forum Thread

That’s all from Builder’s Block #5. Thank you for reading, and keep building. Arbitrum Everywhere.