Arbitrum Open House is hosting an in-person hacker house in Bengaluru, India for builders to develop onchain projects.
Event Details:
- 4 days of intensive hacking
- 1-on-1 mentoring sessions
- Technical workshops
- Wellness activities
- $70,000 prize pool
Registration closes September 2nd - limited spots available.
This follows their successful online buildathon series featuring workshops on Solidity, Stylus (Rust), and smart contract security. The initiative is part of Arbitrum's "Everywhere" campaign to accelerate onchain adoption globally.
Open House is how we bring Arbitrum Everywhere Through our 0 -> 1 builder tracks Learn, Build and Hack, we're bringing all builders together to ship and accelerate onchain adoption forward Dive in below ๐ blog.arbitrum.io/introducing-arโฆ
Open House India is made possible by the amazing sponsors supporting our builders! Together weโre kicking off our online Buildathon on Aug 22nd with $33K in prizes Meet the sponsors below and register today ๐ arbitrum.hackquest.io/buildathons/Opโฆ
Ready to bring your idea onchain? Join our 3-week Open House Online Buildathon in India starting Aug 22! Expect workshops, AMAs, pitch sessions & a build competition Secure your spot and check the full agenda ๐ arbitrum.hackquest.io
Have an onchain idea? Join Open House Build - a 3-week online buildathon where you can bring ideas onchain Expect mentorship, workshops, and a build competition with $33k in prizes Starting August 22nd. Apply today ๐ openhouse.arbitrum.io
Join us at our IRL Open Hacker House in Bengaluru India and ship your ideas onchain! ๐ฎ๐ณ ๐ง 4 days of hacking ๐ค 1v1 mentoring & workshops ๐ wellness activities ๐ $70k prize pool Registration closes Sept 2nd. Apply today ๐ lu.ma/openhousehack-โฆ
Session App Introduces Quantum-Resistant Messaging on Arbitrum
**Session App** is launching quantum-resistant messaging capabilities powered by **Arbitrum**. This development builds on Session's previous work with onchain private messaging that began in March 2024. The integration with Arbitrum's Layer 2 infrastructure aims to provide enhanced security against future quantum computing threats. - Quantum-resistant encryption protects against advanced computational attacks - Built on Arbitrum's scaling solution for improved performance - Continues Session's focus on private, secure communications The upgrade represents a significant step forward in **preparing messaging platforms** for the quantum computing era while maintaining the benefits of blockchain-based communication.
๐ Arbitrum Builders Weekly Wins

**Major milestones across the Arbitrum ecosystem this week:** - **Binance Alpha** now supports Arbitrum, opening massive distribution for early projects - **Robinhood's GOOGL** becomes first tokenized stock to hit $1M market cap on Arbitrum One - **Vitalik donated 128 ETH** to Session app for decentralized messaging development - **Latin American expansion**: Eldorado enables Tether purchases via 80+ finance apps with USD payments - **ArbitrumDAO revenue** projected at $26.6M for 2025 - **Variational's Omni** shared $3M+ back with traders through refunds and rewards - **Peanut payments** surpassed $300K in QR transactions, showing strong product-market fit
๐ฆ๐ท ArbiVerse Buenos Aires Wraps Up
**ArbiVerse Buenos Aires** concluded as Arbitrum's biggest event of the year during Devconnect week. The week kicked off with the **Uniswap Cup** soccer tournament, followed by active participation at **Devcon** where the team connected with builders and shared updates about upcoming showcases. **Wednesday's ArbiVerse** featured: - Builder showcases and workshops - Interactive games and talks - Traditional Argentine asado and live music - Local cultural experiences **Key partners** included ArbitrumDAO, Berry Investing, Eldorado, Alchemy, Fluid, Kleros, Peanut, and OpenZeppelin. The week wrapped with **ArbiPanadas** - a community gathering featuring traditional empanadas and casual networking. The events successfully combined technical content with Argentine culture, creating memorable experiences for the Arbitrum community during one of crypto's biggest conference weeks.
๐ Ostium Labs Hits $22.2B Volume Milestone on Arbitrum After Just One Year
**Ostium Labs celebrates its first anniversary on Arbitrum** with impressive metrics that showcase rapid growth in the L2 ecosystem. Key achievements in just 12 months: - **Total trading volume**: $22.2B+ - **Total trades executed**: 300K+ - **Active users**: 13.6K+ The milestone demonstrates **strong adoption** of Arbitrum's scaling solution and highlights how quickly projects can gain traction on Layer 2 networks. Ostium's growth reflects the broader **momentum in Arbitrum's ecosystem**, where projects are achieving significant volume and user engagement faster than traditional Layer 1 alternatives.
Stylus Physical Redemptions and Mint Deadline

**Stylus** offers a unique opportunity for collectors of **Infinite Rainbows** by @JimenaBuenaVida: - Physical redemptions begin Monday, Oct 7 at 12:00pm ET - Mint deadline: Sunday, Oct 6 at 12:00pm ET - Exclusive minting available at http://mintstylus.xyz Don't miss this chance to participate in both digital and physical art collection. Mark your calendars and prepare for this limited-time event. *Visit the official website for more details and to participate in the mint.*