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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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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

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

Aaditya Rawat

Champion
29
No.1
A

Akan

Lagos, Nigeria.
Champion
14
No.2
S

Skia Variants

The Blockchain
Champion
13
No.3

RikuyApp

Rikuy — anonymous corruption reporting on a custom Arbitrum L3. ZK-proven identity, gasless UX, AI-validated evidence, immutable on IPFS. Solidity + Rust/Stylus contracts, 73 tests, live chain, real users in Bolivia. Whistleblowers stay anonymous. Evidence never disappears.

Tech StackSolidity, Rust, Web3, Node, Ethers
Builder
DDaniel Hidalgo
OtherDAO

Arbnomo

The first on-chain binary options trading dapp on Blockchain

Tech StackNext, Web3, Solidity, Supabase, Pyth Oracles, x402
Builder
AAmaan Sayyad
SocialFiGaming

FanDonor

We are addressing the issues of monetization of Real-World Assets. In this platform, creators can tokenize their art and accept donations.

Tech StackReact, Solidity
Builder
SSanthosh Nair
NFTRWASocialFi

RealBot

Trustless DeFi trading agent verification using STARK proofs on Arbitrum Stylus. Generates browser-side STARK proofs of Sharpe ratio from real GMX V2 trades and verifies them on-chain — no trusted set

Tech StackWeb3, Next, Rust, DeFi, ARB, Solidity
Builder
Hhoddukzoa
DeFiInfra

ClawPay

From telegram tell your OpenClaw to order from any website - it creates a secure credit card on demand from crypto and pays for the order

Tech StackReact, Web3, Ethers, Node, Solidity
Builder
AAdil Husain
InfraAISocialFi

ClawPay

From telegram tell your OpenClaw to order from any website - it creates a secure credit card on demand from crypto and pays for the order

Tech StackReact, Web3, Ethers, Node, Solidity
Builder
AAdil Husain
InfraAISocialFi

Hyperkit

Web3 Infra for SDKs & AI Agents AI‑native dApps across all major L1 and L2 blockchains.

Tech StackNext, Solidity, Python, Node, Web3, Ethers
Builder
JJustine L.
AIInfraDeFi

FanDonor

We are developing a platform based on Blockchain technology to address the issues of monetization of Real-World Assets. In this platform, creators can tokenize their art and accept donations.

Tech StackReact, Solidity
Builder
Ssnair2001
NFTRWASocialFi

Stylus Hardware Anchor (SHA)

Hardware identity primitive for Arbitrum Stylus — binding ESP32-S3 silicon to on-chain execution. Sybil-resistant DePIN verification without TEE or secure elements.

Tech StackRust, Python, Web3, Arbitrum Stylus
Builder
AArhant Barmate
Infra

novax yield

Novax Yield tokenizes trade receivables on Arbitrum Sepolia, connecting Africa-Asia exporters with global investors. Exporters get immediate liquidity; investors earn 8-12% APY from verified invoices.

Tech StackReact, Web3, Ethers, Solidity
Builder
OOsi
DeFiRWANFTInfra

DARX - ZK Dark Pool

Private Trading, Powered by Zero-Knowledge Proofs. Trade any token in size with zero price impact with crypto's first decentralized crossing network. Live today on Arbitrum Ecosystem.

Tech StackNext, Web3, Solidity, Circom , Groth16, SnarkJS, Express JS, Supabase
Builder
ZZaky Irsyad Rais
DeFi

MintLocke

Autopilot for crypto and tokenized RWA portfolios.

Tech StackReact, Next, Node, Ethers, Web3
Builder
JJesus Burgoa
RWAAIDeFi
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