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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
E

Edy Cu

Jakarta
Champion
1
No.1
c

chubbyzroxas

Champion
1
No.2
Y

Yayan Fauzi

Champion
1
No.3
Most Project Built
z

zorzalcripto

regencia
Champion
61
No.1
A

Amaan Sayyad

Navi Mumbai, India
Champion
34
No.2
A

Aaditya Rawat

Champion
29
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

ROSA

ROSA digitises rotating savings circles (Sou-Sous) on-chain using Arbitrum Stylus & ZeroDev Passkeys: features gasless onboarding, multi-chain support, and smart collateral default protection.

Tech StackReact, Next, Rust, Web3, Ethers, Node
Builder
MMr. GT
RWASocialFiDeFiDAO

Robinlend

A compliant, institutional-grade lending protocol deployed on Robinhood Chain L2 using tokenized real-world equities as collateral.

Tech StackEthers, Web3, React, Solidity, Node
Builder
Hhq_1780235979
DeFiRWA

RAXCLAW-ARBITRUM

A deterministic orchestrator that scans smart contracts, simulates attacks, proves every result cryptographically, and stores immutable audit reports on-chain via Stylus on Arbitrum. No LLM override.

Tech StackNext, Ethers, Node, Solidity, Rust
Builder
KKongphop Kingpeth
AINFTInfra

NairaStable

NairaStable is a decentralized stablecoin pegged to the Nigerian Naira, built on Arbitrum. Users deposit ETH as collateral and mint nNGN. No bank, no custodian, just code.

Tech StackReact, Solidity, Node, Ethers, wagmi, Tailwind CSS, Foundry, Typescript
Builder
AAdams Afeez
DeFi

Tacet

Tacet is a sealed coordination protocol where autonomous agents commit privately, wait for a shared Drand cue, and settle deterministically on Arbitrum.

Tech StackReact, Web3, Node, Solidity, TypeScript, Arbitrum, Drand, Foundry
Builder
KKaptan
AIInfraDeFi

OmniCurve

One continuous curve instead of a hundred yes/no pools — a Gaussian-priced prediction market, with all the math running on-chain via Arbitrum Stylus.

Tech StackRust, Web3, React, Node, Solidity, Stylus, Goldsky, Websockets
Builder
TTathagat Gupta
DeFiInfraOther

Proof-of-Model

A verifiable-inference marketplace for the agent economy, on Arbitrum

Tech StackSolidity, Rust, Java, Next
Builder
EEmmanuel Akinleye
AIInfra

Coffhee Finance

Coffhee is an encrypted privacy-preserving DEX (eAMM).

Tech StackReact, Web3, Ethers, Solidity, Python, Node
Builder
LLamont Veal
DeFi

Orcus - MEV-resistant dark pool agent

An MEV-resistant dark pool agent that keeps your trading intent encrypted until settlement is final.

Tech StackNext, React, Web3, Ethers, Solidity, 0G-Compute, 0G-Storage, Arbitrum
Builder
SShreyas Patil
DeFiAI

Targen

Fantasy sports with AI as the athletes

Tech StackReact, Next, Solidity, Web3, Node, Java
Builder
EEmerson Hideki Kanazawa
GamingAIOther

linkworld

Decentralized global mobile data platform

Tech StackReact, Solidity, Go
Builder
MMandy lau
InfraSocialFiNFT

enwise.app

mcp server to create invoices and payment links in seconds

Tech StackReact, Next, claude, mcp, ai, cursor, postgresql
Builder
AAditya Pundir
AIInfraOther
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