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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
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
M

Manjeet Sharma

india
Champion
16
No.1
R

Rick

California
Champion
16
No.2
D

DHRUV PANCHOLI

jaipur
Champion
15
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

Super Squares

Super Squares is an onchain version of the popular SuperBowl Game Squares , featuring tradeable NFTs that represent each Square , supporting NBA and NFL events , adding NCAA March Madness and World Cup in the future.

Tech StackNext, Python, Solidity, Node, Web3
Builder
YYuppy
GamingDeFiNFT

Payo

Send crypto to Telegram users who've never touched a wallet.

Tech StackReact, Next, Web3, Ethers, Node, Rust
Builder
RRama
SocialFiDeFi

EqualFi

EqualFi is a trust minimized DeFi protocol built around Position NFTs and explicit encumbrance. It offers 0% interest self secured loans, solo and community maker AMMs, maker auction markets (MAM curves), physically settled options and P2P Lending. All without Oracles and No Liquidations

Tech StackSolidity, Next
Builder
MMatt Hooft
DeFiInfraNFT

Providus

Providus is an institutional-grade risk engine that runs directly on-chain using Arbitrum Stylus. It computes Value at Risk (VaR) and Expected Shortfall (ES) — the same metrics banks use to evaluate portfolio risk without relying on a centralized server or a trusted oracle. The core breakthrough is a Log-Space Optimization that removes computationally expensive exponential functions from the Monte Carlo simulation loop. This makes 10,000-path simulations viable on-chain for the first time — something impossible on standard EVM due to gas constraints. Arbitrum Stylus (Rust → WASM) is the only execution environment where this works. The full product ships with: a live Protocol Stress Test Simulator (Aave V3, Maker, Compound presets), cryptographic on-chain proof generation, PDF report export, a developer API with tiered billing, API key management, webhooks, and a TypeScript SDK.

Tech StackRust, React, Web3, Ethers, Node
Builder
AAniekanabasi Umoh
DeFiInfra

life-vault

LifeVault is a non-custodial inheritance and savings protocol built on Arbitrum Sepolia using Arbitrum Stylus (Rust).

Tech StackReact, Next, Rust, Web3, arbitrum stylus
Builder
OOpe Ayeni
DeFi

StylusArena

StylusArena gamifies DeFi education. Players train AI agents through gameplay—no coding required. Agents deploy as Stylus contracts on Arbitrum, ready to execute real trading strategies autonomously.

Tech StackReact, Next, web3, Solidity, Rust
Builder
IIrham
DeFiGamingAI

Wrap-Up-Arbitrum

Wrap-Up: The verifiable web's intelligence layer. Curate articles with AI, access smart summaries, and earn rewards for building a transparent, community-owned news ecosystem.

Tech StackReact, Web3, Ethers, Node, Solidity
Builder
DDaksh Thakran
SocialFiRWAAI

perpX

perpX is a decentralized leveraged trading protocol that reimagines perpetual futures by introducing forced expiry and outcome-based settlement.

Tech StackReact, Next, Web3, Ethers, Rust, Arbitrum, Stylus, Node
Builder
AAman Jha
DeFi

Seturan FI

A permissionless cross-chain lending protocol powered by LayerZero and built for composability on Arbitrum

Tech StackSolidity, Web3, Next, Ponder, LayerZero, Cross-chain, Arbitrum, Foundry
Builder
Rruina ventura
DeFi

stylus-ide

Build, Test, AI Integrated and Deploy Smarter with "npm i create-stylus-ide". Create New Files or Load from GitHub or Interact with On-Chain Contracts.

Tech StackNext, Web3, Rust, Node
Builder
AAaditya Srivastava
Infra

Verdict

Verdict: Capital-efficient prediction markets for real-world asset strategies. Deploy 100% of your capital

Tech StackReact, Solidity, Ethers, Next, Node
Builder
PPreyanshu Mishra
InfraAI

SlemanFi

A comprehensive DeFi lending protocol built using Solidity (Foundry) and Arbitrum Stylus (Rust)

Tech StackStylus, Next, Web3, Solidity, React, Foundry, Chainlink, Ponder
Builder
HHafsidee
DeFi
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