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Open House Archive

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

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Builder Highlight

Most Hackathon Won

Most Project Built

Builder Highlight

Most Buildathon Won
E

Edy Cu

Jakarta
Champion
1
No.1
c

chubbyzroxas

Champion
1
No.2
Y

Yayan Fauzi

Champion
1
No.3
Most Project Built
z

zorzalcripto

regencia
Champion
61
No.1
A

Amaan Sayyad

Navi Mumbai, India
Champion
34
No.2
A

Aaditya Rawat

Champion
29
No.3

Fables

Fables is a market-aware ve(3,3) DEX on Robinhood Chain.

Tech StackSolidity, TypeScript, Foundry, Uniswap v4 Hooks, OpenZeppelin, Envio
Builder
00xcs361
DeFiRWA

Exchequer copy

Exchequer token projects give downside protection to it's holders

Tech StackWeb3, Ethers, Solidity, React
Builder
SSabretooth Guyi
DeFiInfraRWA

Chainwall release on Arbitrum

Chainwall is a self-custodial control layer designed to protect onchain operations from internal and external threats. Chainwall is a fully decentralized system with a unique security model: It allows to avoid UI spoofing as it checks at execution if a user is authorized to execute, if operation complies with onchain catalog and policies. Chainwall architecture doesn’t rely on servers and is not exposed to API endpoint exploits.

Tech StackWeb3, Solidity, Zig
Builder
IIda Swarczewskaja
InfraAI

Zona

Zona integrates tokenized stocks into one seamless workflow. Users can trade, borrow, and manage leverage in one app.

Tech StackWeb3, Solidity, React, Node, Ethers, Next
Builder
JJames Chu
RWADeFi

tahansoe.xyz

A non-custodial agent that saves your DeFi loans from liquidation

Tech StackNext, Web3, Node, Solidity
Builder
RRakyavara Artomily
DeFiAI

GIGA DEX

GIGA DEX is growing to become the native liquidity hub of Robinhood for stocks, USDG and all assets. With fully audited novel infrastructure and tokenomics, GIGA DEX has grown from the old models of other DEX to provide advanced features that support native users and long term liquidity growth. GIGA DEX supports Classic, v3 and PropAMM pools to give liquidity providers the best possible options for their trading goals. Powered by the GIGA machine, our live token and low fee model is sustainable and primed for growth with the chain.

Tech Stack
Builder
BBrent HUGHES
DeFi

lpTOKEN.fun

LPing as easy as trading a coin. Full-range Uniswap v4 positions in one ERC-20. No range management. Fees compound automatically.

Tech StackReact, Solidity, Next
Builder
PProject7
DeFiRWA

StockRip

The Original Stock Trading Cards. Rip packs of digital trading cards packed with tokenized stocks. Hold them, or sell back instantly for 95% of their value. Live on Robinhood Chain since July.

Tech StackSolidity, React, Next, Web3, Ethers, Node, Rust
Builder
GGami
RWANFTGaming

Lighthouse

AI agents are getting smarter, but they still struggle to remember what matters across sessions, tools and applications. Lighthouse Memory is building a shared, persistent memory layer for AI agents. It allows connected agents like Claude, Codex, Cursor and other AI applications to save, retrieve and reuse important context, including user preferences, project history and past decisions. Instead of starting from scratch every time, agents can pick up where the previous session or connected agent left off.

Tech StackNext, Ethers, Solidity, Web3, Node
Builder
NNandit Mehra
AI

CRISP

CRISP builds gamified experiences for prediction markets, starting with esports. We develop live-event prediction games, up/down formats and gacha reward systems that existing platforms can integrate to help platforms and creators engage their audiences. Our earlier trading tools and partner campaigns have generated over US$7 million in combined trading volume and approximately 1,539 signups.

Tech StackNext, Rust, Solidity, Viem, Express, Postgres
Builder
WWen Kai Lau
GamingOther

Stargazer

Social layer to trade RWA with likeminded wallets

Tech StackC#, .NET, Python
Builder
MMax Slyzkoukh
SocialFiRWA

Decayless

Decayless is a new financial primitive for creating leverage tokens that do not decay over time. No decay, no funding, no liquidations.

Tech StackWeb3, Next, Solidity, Node, Ethers
Builder
XXata Xatarrer
DeFiRWANFT
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Project Highlight

Project Highlight

EduBricks

EduBricks is a platform enabling fractional ownership of tokenized real estate, making investments more accessible

Champion

x

Arbitrum X EDU Chain Mini-Hack

Pencil Finance

Bringing $3 Trillion in Student Loans On-Chain

Champion

x

Arbitrum X EDU Chain Mini-Hack

Stylish Course to Stylus Smart Contract Development

A comprehensive course on deploying and interacting with Stylus smart contracts on Arbitrum and EDU Chain, featuring a full-fledged Stylus IDE for seamless deployment and interaction.

Champion

x

Arbitrum X EDU Chain Mini-Hack

VineFinance

Vine Finance is a decentralized, modular revenue strategy protocol.

Champion

x

Arbitrum X EDU Chain Mini-Hack

Orbital

A next-gen AMM that supports 2, 3, or even 10,000 stablecoins in a single pool, scaling concentrated liquidity into higher dimensions.

+1
Champion

x

Arbitrum Open House India: Online Buildathon

zkArb SDK

zkArb SDK is a developer toolkit that makes building zero-knowledge apps on Arbitrum simple and fast. It provides plug-and-play Circom circuit compilation, proof generation, and ready-to-deploy verifier contracts, so developers can focus on dApps instead of cryptography.

Champion

x

Arbitrum Open House India: Online Buildathon