Open House Archive
Welcome to the Open House Archive - your central repository for accessing all previous Open House buildathons and projects.
Welcome to the Open House Archive - your central repository for accessing all previous Open House buildathons and projects.
Most Hackathon Won
Most Project Built
Manobendra Mandal
Vivek Sahu
simp1e
Akan
Doraking
mandylau72
The Programmable Treasury OS for the Onchain Economy Turn your DAO or onchain business treasury into a policy-driven system. Define rules once. Let agents propose. Multisig executes. Audit forever.
AI-powered perpetual trading with a Stylus WASM order book, multi-agent safety committee, and cross-chain settlement between Arbitrum Sepolia and Robinhood Chain.
Skepsis is a continuous-outcome prediction market. Instead of yes/no, you price the range a number lands in. Binary markets price direction and pay nothing when the number lands off-strike; Skepsis prices magnitude, so the payoff scales with how close you are. It runs on Arbitrum Sepolia, resolves on Chainlink, and is curated. LMSR over a bucket tree prices every range on one continuous curve (range, time, and 1-of-N options markets). One ERC-4626 vault seeds every market, so a market is tradable the moment it's created, and recycles capital on resolution. LPs earn fees across all markets. Unified liquidity: one curve with shared depth, not fragmented per-threshold binary books. Solvency is guaranteed on every trade: LMSR keeps pool balance ≥ max payout, and the alpha parameter bounds worst-case LP loss. Alpha decay tunes spreads over a market's life to blunt manipulation and converge to efficient pricing. (confirm direction vs. the deployed contract) Traders express a precise view (CPI in 2.8–3.2%, not CPI > 3%); treasuries and LSTs hedge precise exposures without basis risk; parametric insurance becomes possible.
We are three horsemen to build a Traceable Agriculture Supply Through Real World Asset Tokenization.
The DEX that pays you back when it hurts. Self-sustaining Impermanent Loss Shield. Provide liquidity and get compensated for price divergence. Automatically.
Modular yield aggregation protocol that combines ERC-4626 with the Diamond proxy pattern (EIP-2535), giving every yield strategy its own independently upgradeable facet behind a single curated vault.
Reveal Protocol is a receipt layer for crypto commerce.
A payment automation platform that allows users to pay subscriptions, utility bills, and recurring salaries with cryptocurrency through smart contract-powered automation and virtual payment cards.
The Lending Network for Real World Assets
The Skill Economy Built for the AI Era. AI Agent Skills as sovereign NFTs. Traded by humans and autonomous agents alike. Every Skill earns — every holder profits.
The agent-native stack decision layer for crypto builders. Composewith gives agents a source for a building stack that is current, structured, cited, and verifiable.
Rama builds Mycelium Trails — post-execution accountability infrastructure for autonomous agents. Each agent action generates a tamper-evident receipt anchored on Arbitrum. Live at argentum.rgiskard.xyz. Built for the agentic economy.