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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

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

ArbGuard: AI-Powered Arbitrum Security Shield

ArbGuard solves the main Web3 dilemma: how to achieve absolute asset security without sacrificing the convenience of a standard wallet.

Tech StackWeb3, Solidity
Builder
EErlan Shyn
AIInfraOther

Aegis

The verifiable crisis-response guardian for DeFi & RWA. Risk scoring and exit decisions run on-chain in Arbitrum Stylus — execution is bounded, non-custodial, and reproducibly verifiable.

Tech StackReact, Next, Web3, Solidity, Node, Rust
Builder
GGodswill Idolor
DeFiRWAInfra

CanHav Research

CanHav uses AI agents to analyze on-chain and off-chain DeFi signals, helping users understand protocol risk in real time. The platform integrates blockchain to improve collaboration between agents.

Tech StackWeb3, Solidity, Python, Next
Builder
WWazarat Hussain
DeFiAI

Sigma

Sigma is an on-chain portfolio risk engine — written in Stylus, verified against a Solidity baseline, and wired into a vault that lets tokenized equities behave as composable DeFi collateral on Robinhood Chain.

Tech StackRust, Solidity, WASM, Arbitrum Stylus, Foundry, OpenZeppelin Contracts, Slither, Typescript
Builder
IIssa Abubakar

SAGE

SAGE is a Claude-powered DeFi agent in WhatsApp. Text it to trade tokenized stocks on-chain - no app, no wallet, no gas. Funds live in a smart account you can self-custody. Built on Robinhood Chain.

Tech StackWeb3, Ethers, Solidity, Java
Builder
SSamuel Samson
DeFi

Etesia Research

Etesia Research is building institutional-grade portfolio construction infrastructure for digital assets. Our platform enables users to access systematic investment frameworks through non-custodial tokenized vaults, bringing diversification, risk management, and quantitative portfolio construction on-chain. We believe the next phase of DeFi will be defined not by access to more assets, but by better tools for allocating capital across them.

Tech StackReact, Next, Web3, Ethers, Node, Solidity, Python
Builder
CCedric Lewis
DeFiRWA

Verus

Tech StackReact, Next, Web3, Python, Ethers, Node
Builder
FFLB
DeFiInfra

Keyspot-SDK

KeySpot is a runtime credential security layer for agents, scanning checkpoints to detect and vault exposed credentials. No raw secrets persist in agent state. x402 enables per-call payments on Arb

Tech StackPython, Node, Web3, React, Next
Builder
Ttonywtf
AI

CryptoSplitter

CryptoSplitter is a decentralized Web3 application that lets groups split shared expenses on-chain. Whether it's a trip, dinner, or shared accommodation — simply create an event, add your friends' wal

Tech StackReact, Next, Web3, Solidity
Builder
DDimitris Kazantzis
DeFi

Bluff & Barrel

A fully on-chain, FHE-encrypted 4-player card bluffing game with Russian Roulette elimination and USDC stakes. Built on Fhenix CoFHE. Deployed on Arbitrum Sepolia.

Tech StackReact, Node, Solidity, Fhenix
Builder
MMeet
GamingNFT

OmniVault

AI-agent-driven decentralized VC fund with automated yield and on-chain project auditing

Tech StackSolidity, Rust, Next
Builder
DDing Ding
DeFiAI

elysia-perps

Elysia-Perps is a Quanto-based perpetual exchange that makes ARB itself the settlement currency—deposit ARB, trade global assets, and settle PnL in ARB.

Tech StackReact, Web3, Solidity
Builder
임임정건
DeFiRWA
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