Open House Archive
Welcome to the Open House Archive - your central repository for accessing all previous Open House buildathons and projects.

The first on-chain binary options trading dapp on Blockchain
We are addressing the issues of monetization of Real-World Assets. In this platform, creators can tokenize their art and accept donations.
Trustless DeFi trading agent verification using STARK proofs on Arbitrum Stylus. Generates browser-side STARK proofs of Sharpe ratio from real GMX V2 trades and verifies them on-chain — no trusted set
From telegram tell your OpenClaw to order from any website - it creates a secure credit card on demand from crypto and pays for the order
From telegram tell your OpenClaw to order from any website - it creates a secure credit card on demand from crypto and pays for the order
Web3 Infra for SDKs & AI Agents AI‑native dApps across all major L1 and L2 blockchains.
We are developing a platform based on Blockchain technology to address the issues of monetization of Real-World Assets. In this platform, creators can tokenize their art and accept donations.
Hardware identity primitive for Arbitrum Stylus — binding ESP32-S3 silicon to on-chain execution. Sybil-resistant DePIN verification without TEE or secure elements.
Novax Yield tokenizes trade receivables on Arbitrum Sepolia, connecting Africa-Asia exporters with global investors. Exporters get immediate liquidity; investors earn 8-12% APY from verified invoices.
Private Trading, Powered by Zero-Knowledge Proofs. Trade any token in size with zero price impact with crypto's first decentralized crossing network. Live today on Arbitrum Ecosystem.
Autopilot for crypto and tokenized RWA portfolios.
StonkBrokers is an onchain launch + trading ecosystem built on Robinhood Chain Testnet that combines community formation, liquidity, and incentive-driven price action into one cohesive product. At the foundation is our fully minted-out NFT collection. The collection was intentionally designed as a go-to-market mechanism: it created an immediate, finite group of holders, aligned incentives, and a shared identity from day one. By minting out, it proved demand early and established a core community and user base that could later participate in token launches, trading, and liquidity. On top of that community layer, we introduced a token launch and exchange system, then extended it with call options to create reflexive incentives. Call options give users upside exposure to price moves, which naturally motivates participants to accumulate and support tokens they believe in—and, in practice, encourages “pump” behavior (buy pressure) because the payoff is directly tied to pushing spot price above the strike. At the same time, the system counterbalances speculation with lock-based yield incentives: users who want to earn yield from LP fee flows stake/lock their tokens (a lockup is required). That lock converts holders into long-term participants, reduces circulating supply, and aligns them with sustained trading volume and fee generation rather than short-term flips. The result is a flywheel: NFT holders bootstrap community and early participation Calls reward bullish conviction and incentivize demand/price expansion Token lockups for LP-fee yield restrict supply and promote long-term alignment Trading activity drives fees, which reinforces staking/yield participation
Most Hackathon Won
Most Project Built
Manobendra Mandal
Vivek Sahu
simp1e
Manjeet Sharma
Rick
DHRUV PANCHOLI