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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

DeFine

DeFine is an early-warning system for EVM wallets. It shows what needs attention now and why, across the wallet or specific DeFi positions, and alerts users when risk appears or changes.

Tech StackReact, Next, Node, Web3, TypeScript, viem
Builder
AAleksandr Melnikov
DeFiInfra

Signo

Signo gives every wallet AI agents that watch your DeFi positions and act within limits you sign, enforced on chain by Signo Shield on Arbitrum.

Tech StackSolidity, Next, React, Node, TypeScript, Foundry, viem, Convex
Builder
AAustin Lee
AIDeFi

DeSpell

Human-authorized AI app layer for onchain actions. One sentence in. One verified transaction out.

Tech StackReact, Next, Web3, Node
Builder
AAlex kim
AIInfra

pfwafun

PFWA is a permissionless prediction market built on Robinhood Chain, where anyone can create and trade markets around onchain assets.

Tech StackNext, Ethers, Solidity, React, Node, Web3
Builder
MMiracle Otugo
DeFiOtherInfra

Dice Protocol

Faster RNG on Robinhood Chain first, then Arbitrum: live verifiable commit-reveal randomness for games, AI agents, DeFi and real-time apps.

Tech StackWeb3, Python, Solidity, Ethers, Node
Builder
AAlireza Kh
InfraGamingDeFiAI

Hence Markets

Hence turns your beliefs about the world into custom indices across any asset class with frontier AI.

Tech StackReact, Python, TypeScript, Viem, Privy, PostgreSQL, DeepSeek, Docker
Builder
IIvan Seara Nunes
AIDeFiRWA

-

Tech StackReact, Next, Web3, Node, Solidity
Builder
VVertalis
RWADeFiAI

Little John

Your AI. Your assets. Your call. Little John brings Robinhood Chain data and transaction review into AI desktop apps. You keep your keys and approve every wallet request.

Tech StackWeb3, Ethers, Node
Builder
ZZKTX.IO
DeFiInfraRWAAI

StableGuard

Automatic depeg protection for stablecoin vaults: Chainlink CRE watches USDC, USDT, DAI and USDS; vaults freeze on a depeg and reopen on recovery. Live-tested on Arbitrum Sepolia; 240 tests.

Tech StackChainlink CRE, Chainlink Data Streams, Arbitrum, Solidity, Web3, Hardhat, TypeScript, JavaScript
Builder
MMatt Boyle
RWAInfraDeFi

LaunchLens

Explainable launch intelligence for Robinhood Chain.

Tech StackSolidity, Web3
Builder
LLateef Fatai
AIInfra

Meme-World Assets (MWA) protocol

Meme-World Assets (MWA) Protocol — RWA-backed token launchpad on Robinhood Chain . Creators lock tokenized stocks as collateral, issue MEME tokens with an optional 3/5/10% buyback premium, and automatically redeem collateral after the lock expires. Live on testnet with 3 deployed contracts. https://mafsc.github.io/mwa/

Tech StackSolidity, Rust, Python, Stylus
Builder
GGreg Alex
RWA

Anora

Real trade. Onchain yield. Building vaults for trade credit.

Tech StackReact, Typescript, Vite, Solidity, Foundry, Wagmi, Viem, Web3
Builder
PPanata gama
RWA
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