Logo

Open House Archive

Welcome to the Open House Archive - your central repository for accessing all previous Open House buildathons and projects.

projects-banner

All Projects

By ProjectBy Buildathon
Learn
  • Explore Course
Build
  • Explore Buildathon
  • Project Archive

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

GridPay - The First DePIN Energy Exchange on Arbitrum

The first company in history to autonomously mint a cryptocurrency token from a real home's solar energy export. Live on Arbitrum One. March 5, 2026.

Tech StackNext, Web3, Ethers, Node, Solidity, Python
Builder
DDevan Webb
RWA

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

Liquid Real World Asset Dex - Dobprotocol

Zero-slippage DEX for tokenized real-world assets. Custom Accounting Hook settles swaps at exact oracle price. Permissionless LP system for orderly liquidations.

Tech StackWeb3, Next, Rust, Node, Ethers
Builder
OOscar Castillo
RWAAIInfra

SureGuy

Social peer to peer and group prediction platform

Tech StackReact, Next, Web3, Rust, Node
Builder
CCharles Wang
SocialFiAIGaming

Carry-RH

Carry Exchange on Robinhood Chain

Tech StackSolidity
Builder
HHargobind Gupta
RWAOther

Piggy: An iOS app to build save, earn and invest

iOS savings app leveraging Morpho vaults for yield and Robinhood chain to auto-invest yield into stocks. Earn up to 9% APY on your cash.

Tech StackSolidity, Swift
Builder
BBobby Thakkar
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 Irby
DeFiInfraAI

DKEY

a p2p marketplace for files

Tech StackSolidity, Node, viem, Web3, Ethers, IPFS, Circom
Builder
Nnoad dev
DeFiSocialFiOther

Robinhood Chain AI Trading Copilot

Robinhood Chain Autonomous Trading Copilot is lets a user connect their wallet on the Robinhood Chain testnet, inspect holdings (TSLA, PLTR, AMZN, NFLX, AMD), and run AI agent to execute autonomously

Tech StackNext, Solidity
Builder
YYUCHEN Peng
DeFiRWA

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
  • Previous
  • 1
  • 2
  • 3
  • 4
  • More pages
  • 64
  • Next