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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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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

PrettySafe.xyz

WebGPU Address Miner to prevent Address Poison, now On Robinhood Chain!

Tech StackWeb3, WebGPU
Builder
VVictor Zhou
Infra

Pledge

Pledge is a habit-staking app that turns missed daily habits into yield-bearing DeFi investments on Arbitrum, creating a new retail distribution channel for on-chain assets.

Tech StackSolidity, Next, Web3, Swift, iOS
Builder
PParv Prabhakar
SocialFiDeFiRWA

Lektra SolarCompute

Solar-powered AI compute marketplace settled on Arbitrum.

Tech StackReact, Next, Python, Solidity
Builder
VVitaly Leokumovich
InfraAI

PrettySafe.xyz

WebGPU Address Miner to prevent Address Poison, now On Robinhood Chain!

Tech StackWeb3, WebGPU
Builder
ZZainan Victor Zhou
Infra

HyperOdd

We're building prediction market infrastructure that powers leveraged prediction market trading like margin or parlays for existing prediction markets with a capital-efficient solvency model

Tech StackReact, Web3, Solidity, Node, Ethers, Next.js, Foundry, Viem
Builder
PPriom Chowdhury
AIDeFiRWA

Pegasus

Yield bearing (mortgage loans) empowering Mortgage Backed Stablecoin

Tech StackSolidity, Web3, Ethers, Node
Builder
SShiv Patel
DeFiRWAInfra

Ioxa

Ioxa is a web 3 SaaS analytics platfom delivering real time AI-driven insight for tokens, wallets and projects. Making blockchain data accessible, verifiable, and secure.

Tech StackNode, React
Builder
JJeff Macius
InfraAI

Unlloo

Under-collateralized loans backed by reputation.

Tech StackReact, Next, Web3, Node, Solidity, NestJs, Typescript
Builder
FFilip Masarik
DeFi

GridPay - The First DePIN Energy Exchange on Arbitrum

The first company in history to autonomously mint a cryptocurrency token from a real home's solar energy export. Live on Arbitrum One. March 5, 2026.

Tech StackNext, Web3, Ethers, Node, Solidity, Python
Builder
DDevan Webb
RWA

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

Liquid Real World Asset Dex - Dobprotocol

Zero-slippage DEX for tokenized real-world assets. Custom Accounting Hook settles swaps at exact oracle price. Permissionless LP system for orderly liquidations.

Tech StackWeb3, Next, Rust, Node, Ethers
Builder
OOscar Castillo
RWAAIInfra

SureGuy

Social peer to peer and group prediction platform

Tech StackReact, Next, Web3, Rust, Node
Builder
CCharles Wang
SocialFiAIGaming
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Builder Highlight

Most Hackathon Won

Most Project Built

Builder Highlight

Most Buildathon Won
M

Manobendra Mandal

Kolkata, India
Champion
3
No.1
V

Vivek Sahu

India
Champion
2
No.2
s

simp1e

china
Champion
2
No.3
Most Project Built
A

Aaditya Rawat

Champion
29
No.1
K

Kaptan

Turkiye
Champion
22
No.2
S

Skia Variants

The Blockchain
Champion
14
No.3