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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

Ascemarket

A Marketplace for future-state protection to your exposure, powered by capital-efficient clearing.

Tech StackWeb3, Solidity, React, Node
Builder
SSaurabh Yadav
DeFiInfraAI

SylvanGate

Enterprise-grade B2B AI Security SDK & Pre-Execution Risk Gateway featuring 0-Gas Session Key Adapters, Programmatic Threat Severance, and Deterministic Intent Safeguards for Autonomous Web3 Agents. Built with zero-friction pre-sign isolation and deterministic circuit breaking (checkSoilResistance).

Tech StackNext, Web3, Viem, Node, Solidity, Rust
Builder
Qqum0x @ Silvervinelabs.com
InfraAIDeFi

hedgefun

hedgefun is a strategy memecoin launchpad on Robinhood Chain. Each token launches with its own treasury that trades tokenized stocks; profits buy back and burn the token. Live on mainnet.

Tech StackSolidity, React, Next, Web3, Ethers, Node
Builder
LLeo Yuan
DeFiRWA

Athena Spend

Lets you pay everyday purchases with USDG, or borrow against tokenised Amazon stock without selling it. It holds collateral on-chain and returns it when you repay.

Tech StackSolidity, Web3, Node, Ethers
Builder
RRoshan Adith
RWADeFi

getfolio.fun

The token launchpad for decentralized token folios (DTFs) on Robinhood Chain

Tech StackNode, Solidity, Web3
Builder
TTom Hadley
DeFiRWASocialFi

Gapwatch

An independent verification layer for Robinhood Chain

Tech StackSolidity, Python, Next, Arbitrum, Foundry, Stylus, FastAPI, Rust
Builder
Ppplmaverick
InfraDeFiRWA

X PrimeFlow — Arbitrum One DEX workspace

Arbitrum One DEX markets in one terminal: pools, trades, on-chain order book, wallet-signed swaps.

Tech StackNode, JavaScript, Ethers
Builder
BBonyNode Team
DeFiInfra

ArbiStealth

Private trade execution with verifiable agent accountability

Tech StackNext, Web3, Ethers, Solidity
Builder
AAlpha Taco
DeFiInfra

X PrimeFlow Stock Token Verifier

Verifies Stock Tokens on Robinhood Chain by bytecode and deployer, not by ticker.

Tech StackNode, JavaScript
Builder
BBonyNode Team
InfraRWA

Lemma

Save AI agent usage with the Lemma MCP server, which turns proven integration work into something agents can safely reuse.

Tech StackPython, Solidity, Rust, Foundry, Stylus, Web3, Ethers, Node
Builder
AAwaan Siddiqui
AIDeFiOther

Aarka

Split a tokenized stock into a Floor and the Upside. Keep one, sell the other: earn cash on shares you hold, or bet on a rise for a fraction of a share. No borrowing, so nothing can ever be liquidated. Live on Robinhood Chain

Tech StackNext, React, Web3, Solidity, Foundry, Uniswap, Wiem, Chainlink
Builder
MMadhav Gupta
DeFiRWAInfra

Afterglow

Fixed-rate USDG lending against tokenized stocks on Robinhood Chain 24/7

Tech StackReact, Solidity, Rust, Next, Web3
Builder
MMartina
DeFiInfraRWA
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