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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
A

Akan

Lagos, Nigeria.
Champion
14
No.1
S

Skia Variants

The Blockchain
Champion
13
No.2
H

Hafiidh Luqmanul Hakim

Indonesia
Champion
7
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

FortiLayer

"Make Arbitrum the default execution layer for institutional capital by providing programmable, composable policy controls that enforce compliance on every on-chain transfer. FortiLayer turns Arbitrum

Tech StackSolidity, Rust, Web3, Ethers, React, Node
Builder
EEmin Karagöz
InfraDeFiDAORWA

AirdropPilot AI

AI-powered airdrop discovery and reward tracking platform on Arbitrum One that helps users find campaigns, analyze eligibility, automate reminders, and maximize onchain rewards.

Tech StackSolidity, Arbitrum One, Agent AI, Next. Js, Web3
Builder
BBayu Subagya
RWADeFiAI

OBSCURA FINANCE

Confidential RWA deal rooms for private credit. Investors submit encrypted bids, issuers repay onchain, and auditors verify with permissioned disclosure on Arbitrum Sepolia.

Tech StackSolidity, React, Next, Web3, Node
Builder
EEmin Karagöz
RWADeFiInfra

HyperDex

RWA tradFi Options & Perps DEX

Tech StackReact, Next, Vue, Web3, Ethers, Node, Solidity, Rust
Builder
BBert Banegil
DeFiAIRWA

3rike Mobility

3riKE is accelerating Africa’s transition to clean mobility by making electric vehicle ownership accessible to underserved transport workers through embedded financial infrastructure.

Tech StackReact, Next, Solidity, ethers
Builder
AAnita Ndukwe
RWAAIDeFi

Arbitrum YieldGuard

An intelligent AI agent that helps you manage USDC yields on Arbitrum by automatically fetching live APYs, supplying to the best protocol (Aave V3), and tracking your deposit/withdrawal history.

Tech StackPython
Builder
CCrypto Enthusiast
AIDeFi

PayGuard

PayGuard is an AI agent that lets you send one-time and recurring payments on Arbitrum using natural language.

Tech StackPython, Web3, langGraph, langChain, AppScheduler
Builder
Nnot lazy
DeFiAI

Aurion

Aurion is a non-custodial credit meta-layer for DeFi. It sits above existing money markets Aave and Compound, and introduces a unified credit identity, cross-protocol risk aggregation, and more.

Tech StackReact, Web3, Solidity, Rust, Ethers
Builder
AAliyu Aliyu
DeFi

Tortuga

https://tortuga.estate/ Tortuga brings institutional real estate bonds on-chain — existing, regulated, cash-flowing securities. We are a Luxembourg-incorporated platform connecting on-chain capital with institutional real-world investments, combining TradFi structuring discipline with crypto-native distribution. We convert ISIN-coded, bankruptcy-remote real estate debt instruments (RELINCs) into permissioned on-chain tokens, wrapped through ring-fenced Luxembourg securitisation compartments. These are bankable assets previously accessible only to HNWIs through private banks and wealth advisors — now available to on-chain treasuries, vaults, and sophisticated crypto-native allocators. Our pipeline is powered by Estating: our Luxembourg-based origination partner — operating since 2018, PwC–audited, with $60M+ structured across 20+ deals, zero principal losses, and 5–28% IRR.

Tech StackNext, Web3, Stylus, Solidity
Builder
MMatt Radominski
RWADeFi

ShadowBid

Confidential Sealed-Bid Auctions

Tech StackSolidity, React, Web3
Builder
TTed Ogola
DeFiRWA

GrantOps Sentinel live privileged config scanner

Live proof pages for Arbitrum/Base contracts, showing current permission state: owner, proxy admin, implementation, pause state, and Safe config.

Tech StackReact, Next, Web3, Node, Solidity, Python
Builder
YYutong ZHANG
InfraAIOther

ACHIVX

ACHIVX is the financial identity layer for autonomous agents. Built on ERC-8004, every agent gets a portable onchain reputation accrued from real interactions on our forum. x402-style endpoints then price and gate access based on score. Live on Arbitrum and Robinhood Chain.

Tech StackGo, Solidity, Ethers, React
Builder
IIlshat Mukhametzyanov
AIInfraDeFi
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