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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

Unilaunch

Launch tokens and manage liquidity in a secure, fair, and transparent way on Uniswap V4

Tech StackReact, Next, Web3, Ethers, Solidity
Builder
BBrian Park
DeFiSocialFi

Carry-RH

Carry Exchange on Robinhood Chain

Tech StackSolidity
Builder
Aashish
RWAOther

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

Creative Pixels

Creative Pixels is a real-time AI video workstation on Arbitrum that turns creative styles into tradable IP.

Tech StackReact, Web3, Typescript, Ethers, Viem, Solidity, Rust
Builder
SSir Gawain
SocialFiAIRWA

Capacitr

Capacitr is an idea launchpad where creators launch concepts with a prompt, AI agents and experts do the work, and everyone earns compounding ownership as it grows.

Tech StackReact, Solidity, Next, Web3
Builder
SSayeed Mehrjerdian
DAODeFiAI

TAG IT Network

Cryptographic digital twins for physical assets. NFC chips + on-chain lifecycle tracking make counterfeits impossible. Verify any product with a tap. Built on Arbitrum.

Tech StackNext, React, Node, Solidity, Web3, Ethers
Builder
AArtem Kozytskii
RWAAIInfraNFT

Out of jail 808347

An AI-driven onchain interactive confession quest where self-exploration is the core mechanic.Out of Jail 808347 is a narrative Web3 quest built at the intersection of AI, music, and blockchain — designed for a worldwide audience

Tech StackWeb3, Ai, NFT, html, Ableton live, cj, ElevenLabs, Conversation Ai agent
Builder
MMike Freedom
GamingSocialFiAI

project 87

AI DeFi bot on Arbitrum that grows USDC treasuries and lets agents spend rewards via API, user‑custodied.

Tech StackWeb3, Python, Ethers
Builder
JJovan Collins
RWADeFiAI

MintLocke

Autopilot for crypto and tokenized RWA portfolios.

Tech StackReact, Next, Node, Ethers, Web3
Builder
LLeon Hitchens
RWAAIDeFi

bond.credit

The credit layer for the agentic economy.

Tech StackSolidity, Typescript, Python, Web3, Next, React, fastapi
Builder
NNathan Vandy
DeFiAI

sGHS - Stable Ghana Cedi

A regional stablecoin pegged to the Ghana cedi built to power the next era of payments, remittance, cross-border payments and onchain finance in Ghana!

Tech StackSolidity, Web3, Ethers, Node, React
Builder
MMuntala Piniyini Shaibu
RWAInfra

REBEKA: Real Estate Blockchain EKosystem Arbitrum

REBEKA is an institutional-grade RWA infrastructure designed to bridge traditional real estate with on-chain liquidity, solving the two biggest barriers for institutional capital: legal certainty and financial privacy. By leveraging Arbitrum’s high-performance network, we provide a secure framework backed by Mexican Irrevocable Trusts (Fideicomisos). Our protocol introduces two core technological breakthroughs: * The Sovereign Permissioned Layer: A native compliance engine built directly into our Arbitrum smart contracts. Token transfers are strictly restricted to KYC/AML-verified wallets. If a wallet lacks legal authorization, the smart contract automatically reverts the transaction. * Institutional Privacy (Confidential-by-Design): To meet traditional banking privacy standards, we integrated Fully Homomorphic Encryption (FHE) via Fhenix. Investor balances and transaction amounts remain mathematically encrypted (as ciphertext) on the public block explorer, ensuring total confidentiality. Finally, REBEKA is future-proofed for global liquidity. In our next phase, we are integrating LayerZero’s cross-chain messaging to evolve into an omnichain protocol, attracting capital from any network while maintaining Arbitrum as our definitive source of legal truth.

Tech StackSolidity, Arbitrum, Fhenix / FHE, OpenZeppelin, HardHat, React, Next, TypeScript
Builder
RRomualdo Zayas Lagunas
RWADeFiInfra
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