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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
s

songsu

Hong Kong
Champion
1
No.1
e

elpabl0.eth

Indonesia
Champion
1
No.2
c

contact ai

Champion
1
No.3
Most Project Built
z

zorzalcripto

regencia
Champion
59
No.1
R

Rick

California
Champion
44
No.2
D

DHRUV PANCHOLI

jaipur
Champion
33
No.3

Project Highlight

Project Highlight

EduBricks

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

Champion

7th Place

Arbitrum X EDU Chain Mini-Hack

Pencil Finance

Bringing $3 Trillion in Student Loans On-Chain

Champion

1st Place

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

First Prize

Arbitrum X EDU Chain Mini-Hack

VineFinance

Vine Finance is a decentralized, modular revenue strategy protocol.

Champion

Third Prize

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

Second prize

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

Honorable Surprise Mention

Arbitrum Open House India: Online Buildathon

EqualFi - RobinHood

This is EqualFi's Submission to the OpenHouse IRL Founders House Hackathon. A Index Token Lending System that uses RH Stock Tokens to make ETF Like Indexes and uses them as collateral allowing yield and fractionalization if RWA's

Tech StackSolidity, React, Viem
Builder
MMatt Hooft
DeFiRWAAI

Cofund

Shared wallets for businesses, organizations & teams. Multisig neobank for business running on blockchain rails.

Tech StackReact, Web3, Ethers, Solidity
Builder
JJesus Najera
InfraOtherDeFi

GonnaMakeIt

A new DeFi primitive: Locked liquidity marketplace. Permanent liquidity for Arbitrum and whole ecosystem, high yields + full tradability/exit flexibility for users. Live on Arbitrum & Apechain.

Tech StackReact, Next, Web3, Ethers, Node, Java, Go, Solidity
Builder
AAlvin Jake Pabuaya
DeFiNFTInfra

StockFI

ETFs without the SEC. Stop-losses fully protected.

Tech StackTokenised-Stocks
Builder
Kkamal
RWADeFi

AI Financial Workspace Legos + Ghost Privacy

Agentic Financial OS on stablecoin rails. Drag-drop fintech widgets (Brex, Mercury, Ramp, Deel), AI agents for payroll & invoicing, private transfers, legal contracts and yield — all in one workspace.

Tech StackReact, Next, Web3, Ethers, Node, Python, Solidity, Rust
Builder
TTomás Cordero
AI

ParlayX

ParlayX is a sports betting platform where bets are backed by a shared liquidity pool funded by users.

Tech StackReact, Java, Solidity, Next
Builder
AAndrew Gonzalez
InfraDeFi

Hopscotch.trade

A P2P marketplace where every deal is verified by an expert, agent, or friend.

Tech StackNext, Web3, Python
Builder
MMorgan Culbertson
RWASocialFiAI

Lektra SolarCompute

Solar-powered AI compute marketplace settled on Arbitrum.

Tech StackReact, Next, Python, Solidity
Builder
VVitaly
InfraAI

SportsX

Vertical AI-Native Infrastructure built for mid-tier sports clubs, enabling them to manage fan engagement, optimize ticketing operations, and unlock scalable revenue growth.

Tech StackSolidity, Typescript
Builder
TTemple Dunn
AIRWAInfra

Unilaunch

Launch tokens and manage liquidity in a secure, fair, and transparent way on Uniswap V4

Tech StackReact, Next, Web3, Ethers, Solidity
Builder
BBrian Park
DeFiSocialFi

Carry-RH

Carry Exchange on Robinhood Chain

Tech StackSolidity
Builder
Aashish
RWAOther

LukyPool

A prize-linked savings protocol on Arbitrum where users deposit funds, withdraw anytime, and the generated yield funds automated prize draws, turning saving into a simple, gamified DeFi experience.

Tech StackSolidity, Web3, Ethers, React, Next, Node, Arbitrum
Builder
SSol Asseff
DeFiGaming
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