AMA about the Japanese ecosystem with Japan based communities

Arbitrum announces Open House Build, a 3-week online buildathon starting August 22nd. The program offers: - Mentorship opportunities - Technical workshops - Build competition with $33,000 in prizes This follows their recent Open House Learn initiative, which launched August 5th focusing on beginner-friendly onchain development education. **Key Details:** - Application open now - Program starts: August 22nd - Focus: Onchain project development - Format: Virtual/online [Apply for Open House Build](https://openhouse.arbitrum.io/)

Pendle's new platform Boros has launched on Arbitrum, introducing on-chain trading for BTC and ETH funding rates. The platform uses Yield Units (YUs) for trading, similar to Pendle's YTs. Key features: - Initial markets: Binance BTCUSDT and ETHUSDT funding rates - Open Interest capped at $10M per market - Leverage limited to 1.2x - PENDLE incentives for traders The platform aims to expand to: - Additional assets (SOL, BNB) - More platforms (Hyperliquid, Bybit) - Bonds, equities, and real-world assets Boros Vaults will offer liquidity provision opportunities with PENDLE rewards, swap fees, and potential APR benefits. [Try Boros](https://boros.pendle.finance/markets)

Arbitrum Foundation has launched a major audit grant program for early-stage projects building on their platform. The initiative aims to address the high costs of security audits that often burden new projects. Key points: - Grants available for third-party smart contract audits - 12 leading audit firms participating, including OpenZeppelin and Trail of Bits - Program targets high-growth potential projects - Focus on enabling secure deployment while preserving project runway Applications are now open via [Tally](https://tally.so/r/3xzEzv?program=aap). Full details available in the [official announcement](https://blog.arbitrum.foundation/arbitrums-10m-audit-program-is-live-apply-to-secure-your-smart-contracts/)

**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.*

Arbitrum is expanding its ecosystem with the addition of MagicEden and a new game from Ubisoft. Key points: - MagicEden, a prominent NFT marketplace, is joining the Arbitrum network - Ubisoft is launching a new game called 'Captain LaserHawk: The G.A.M.E' on Arbitrum - The game, developed by EdenOnline, will feature an upcoming mint For more information about the game and mint process, visit: https://edenonline.ubisoft.com/ **Stay tuned** for further updates on this exciting collaboration between Arbitrum, MagicEden, and Ubisoft.