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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
z

zorzalcripto

regencia
Champion
51
No.1
z

zcy22606

chengdu
Champion
26
No.2
D

David Barasa

Kenya
Champion
19
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

ARBcfo

Permissionless treasury control plane for stablecoin and tokenized-asset operations: policy-enforced intents, oracle-based risk routing, approvals, and immutable onchain receipts.

Tech StackReact, Next, Web3, Node, Rust, Solidity, Arbitium stylus, Typescript
Builder
CCosmas Mandikonza
DeFiRWAInfra

Laytus - parlay prediction markets

Laytus is a correlation-aware prediction market protocol, pricing correlated multi-outcome positions using Gaussian copulas and our proprietary ML model

Tech StackReact, Web3, Python, Solidity
Builder
DDaniel Zilper
DeFiOtherInfraAI

Cofund

Shared wallets for businesses, organizations & teams. Multisig neobank for business running on blockchain rails.

Tech StackReact, Web3, Ethers, Solidity
Builder
JJesus Najera
InfraOtherDeFi

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
DeFiAIRWA

StockFI

DeFi infrastructure for tokenised stocks that never sleep

Tech StackTokenised-Stocks, Robinhood, Insured-Stop-Losses, Next, Solidity
Builder
KKamal Singh
RWADeFi

BaseLots

BaseLots: RWA real estate from investment to inheritance. $50 blocks. Live: baselots.com | Demo: baselots-master.vercel.app

Tech StackSolidity, Arbitrum, ERC-3643, Ethers, Node, Next, React, Web3
Builder
NNoah Everest
RWAAIDeFiInfra

Tilt Protocol

We let quants and AI instantly launch automated 2/20 hedge funds on-chain.

Tech StackNext, Web3, Node, Solidity
Builder
Eee ee
DeFiRWAAI

CanHav

CanHav leverages blockchain technology to empower small businesses with cost savings through bulk ordering of commonly purchased items, enabling lower per-unit prices.

Tech StackReact, Next, Solidity, Web3, Node
Builder
SSyed Wazarat Ali Hussain
DeFiDAORWA

bond.credit

The credit layer for the agentic economy.

Tech StackPython, Solidity, Typescript
Builder
NNiels Abdellatif
DeFiAI

Jarvis

Jarvis powers stablecoins for trade finance. Automate custom contract payment terms and tap into instant liquidity.

Tech StackSolidity, React, Next, Ethers, Typescript
Builder
KKarthik Ramu
OtherDeFiRWA

Equity for Everyone

Invest in startups tiktok style

Tech StackSolidity, Next, React
Builder
Jjohn
DeFiRWASocialFi

Fangorn Founders House

Fangorn is a programmable data layer for the agentic web. In this demonstration it is used to facilitate private computations via fully homomorphic encryption behind the x402 payment required protocol

Tech StackWeb3, Node, Solidity
Builder
CColeman
DeFiInfraAI
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