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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

Eleven Capital

Eleven is a mobile platform on Arbitrum that brings the simplicity of a traditional brokerage to tokenized stocks and prediction markets. It handles all cross-chain routing, bridging, and network management behind the scenes, creating a seamless, single-market experience for multi-chain assets.

Tech StackRust, Kotlin, Solidity, TypeScript, JavaScript, Web3, React, Next
Builder
AAyush Srivastava
DeFi

Sumplus

AI agent execution infrastructure for Robinhood Chain and Arbitrum, helping agents access models, call tools, monitor markets, and execute onchain actions with better control.

Tech StackWeb3, React, Java, Move, Solidity
Builder
OOrangecat Huang
AI

DocHero

Tech StackNode, Express, MongoDB, Web3
Builder
SSahil Sharma
GamingOtherAI

ConsensMed Verify

Public authenticity checks for medical documents on Arbitrum. Only a SHA-256 fingerprint and an opaque ID go on-chain, no patient data. Issue, revoke, supersede, verify.

Tech StackSolidity, Ethers, Go, Node, Web3, Foundry, OpenZeppelin, Arbitrum
Builder
SSIMON PAUL AURELIAN NICOLAE
InfraOther

Open Agent Treasury (OAT)

Open Agent Treasury. The open-sourced treasury management system (TMS) for AI agents.

Tech StackWeb3, Node, Solidity
Builder
KKevin R. Chen
AIDeFi

Lantern

A liquidator's bonus is paid on a price. Lantern holds that bonus back for a few minutes and lets anyone prove, from state that is already on chain, that the price behind the liquidation was one the feed could not honestly have published. When the proof holds, the held money goes to the borrower, the signer's bond pays the prover and absorbs the penalty, and the feed has to carry more collateral before it prints again. When nobody contests the window, the liquidator is paid in full.

Tech StackWeb3, Solidity, Rust, Node
Builder
KKOMARI Subheeksh
Infra

Lockgate

Exit infrastructure for tokenized credit on Arbitrum. Investors receive USDG now through an agreed early exit; platforms repay later.

Tech StackReact, Web3, Node, Solidity, Foundry, TypeScript, viem, OpenZeppelin
Builder
GGabriel Antony
DeFiInfraRWA

Pledge Finance

Tokenized stocks are here, but they're idle capital. PledgeDefi unlocks them: borrow Paxos USDG against your equities in seconds, while your shares keep working for you. The credit layer for Robinhood Chain.

Tech StackReact, Next, Web3, Ethers, Solidity
Builder
PPonks solomon
DeFiRWAOther

PasinPay

Pay for shipped code automatically.

Tech StackNext, React, Web3, Node, Solidity, Rust
Builder
MMonoBit
DeFiSocialFi

Pledge Finance

Tokenized stocks are here, but they're idle capital. PledgeDefi unlocks them: borrow Paxos USDG against your equities in seconds, while your shares keep working for you. The credit layer for Robinhood Chain.

Tech StackReact, Next, Web3, Node, Solidity
Builder
VVertalis
RWADeFiOther

Chiron

Give an AI agent a mandate, not your keys, verified on Robinhood Chain

Tech StackReact, Web3, Solidity, Rust, Node
Builder
PPranjal Studies
AIDeFiInfra

Beat

Earnings markets for Stock Token holders, settled by Chainlink in Paxos USDG

Tech StackSolidity, Robinhood, Arbitrium Stylus
Builder
Sskcodes
DeFiRWA
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