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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
A

Akan

Lagos, Nigeria.
Champion
14
No.1
S

Skia Variants

The Blockchain
Champion
13
No.2
H

Hafiidh Luqmanul Hakim

Indonesia
Champion
7
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

Lindblad Protocol

Silicon-attested identity for RWA tokenization, cross-chain bridges, and M2M commerce. Live on Arbitrum, evolving into Arbitrum Orbit L3.

Tech StackSolidity, Python, Node, Ethers, Web3, C/C++/Arduino, ECDSA/PUF
Builder
JJorge Pumar
RWAInfraAI

obolos

Carta rebuilt onchain for the programmable economy

Tech StackSolidity, FHE, RWA tokenisation, React, Ethers, ZK, Alchemy, OpenZeppelin
Builder
PPetros G. Sideris
RWAAIDeFi

Saffron

DeFi primitive for fixed yield

Tech StackWeb3, Node, Solidity, Uniswap-v3
Builder
JJoseph Fiscella
DeFiDAO

Plether Perps DEX

Trade & hedge dollar index perpetuals.

Tech StackReact, Solidity, Web3
Builder
SStanisław Wasiutyński
DeFi

Nihilium

Decentralized 'Forgot my password', to onboard the next billion users

Tech StackSolidity, Ethers, Node, React
Builder
OOlaf van Wijk
InfraOther

bond.credit – Agentic Risk Coverage

AI agents that price and trade insurance on DeFi yield positions.

Tech StackNode, Web3, Solidity
Builder
NNiels Abdellatif
DeFiAIRWA

Dhruva

We stop agents from paying fake sellers. Confirmation of Payee, for the agent economy.

Tech StackReact, Solidity, Next, Web3, Node
Builder
TThulasiram Peddiboina
AIDeFi

ReineiraOS

The accountability layer for agent work.

Tech StackNode, Web3, React, Solidity, FHE, Python
Builder
AAleksandr Nagaikin
AIInfraDeFi

AgentVisa

AgentVisa is a privacy preserving authorisation infrastructure for AI agents and humans. AI agent can prove that it is backed by an approved human and authorised for a constrained action, without revealing the human’s identity. A smart contract checks the proof before funds move.

Tech StackWeb3, Solidity, Node
Builder
DDaniel Abraham

Ultimate

the uxmaxxing platform.

Tech StackSolidity, React, Web3
Builder
PPiotr Duda
AIDeFi

Agama Finance

RWA yield infrastructure that turns idle tokenized stocks into a self-growing position.

Tech StackReact, Next, Web3, Ethers, Solidity
Builder
EEden Baudin
DeFiRWA

TEST-danielProject

TEST-danielProjectTEST-danielProjectTEST-danielProjectTEST-danielProjectTEST-danielProject

Tech StackNode, Web3, AGENTS, Ethers
Builder
Ttest-Daniel test-Ortega
DeFiDAOGaming
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