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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

Tawf Finance

Tawf Finance makes rural sharia bank (BPRS) yield verifiable and investable. Stablecoin capital reaches Indonesian BPRS, with ZK proofs showing where funds sit and how profit is shared.

Tech StackWeb3, Ethers, Solidity, Rust
Builder
MM Zidan Fatonie
RWADeFiInfraOther

Lummy Ticket

Trust infrastructure for live-event resale. Lummy holds the buyer's money until 48 hours after the show, then pays the seller.

Tech StackReact, Next, Node, Solidity, Typescript, Viem, Supabase, Foundry
Builder
ZZara S.
OtherAI

DigiRobotics

Record auto-visual tutorials for robots get paid in USDG. We built the world's first stablecoin-native agentic marketplace for Physical AI.

Tech StackNext, Node, Solidity, Web3
Builder
❍❍sk
AI

Notes Markets

A marketplace and issuance engine for tokenized structured notes: hedge risk or gain exposure to tokenized assets and RWAs, in any market.

Tech StackWeb3, Solidity, React, BPMN, Chainlink CRE
Builder
Kkwang wei sim
RWADeFiInfra

Uptickfi

The yield and borrow layer for Robinhood Stock Tokens: earn the fees, borrow at 4% not 21% on pools proven to pay

Tech StackSolidity, Foundry, Uniswap v3, Uniswap v4, Morpho, Chainlink, Next.js, MCP
Builder
Kkamal
DeFiRWA

Ace - RWA Perps with Stock Token Margin

Stock-margined RWA Perps. Earn and trade with your stock tokens without selling. Live on Robinhood Testnet: https://ace-trade.xyz

Tech StackReact, Next, Web3, Ethers, Solidity, Node
Builder
TTheo Legend
DeFiRWA

Diapago

Diapago adds Pay later to US-dollar supplier bills inside the POS a shop already uses. A per-bill escrow on Arbitrum pays the supplier on the due date, and the shop repays without holding ETH. Testnet prototype.

Tech StackSolidity, Rust, React, Node, Ethers, Foundry, TypeScript, viem
Builder
RRichard Sulisthio
DeFiInfra

Xencra Analytics

Xencra Analytics is a live onchain fee analytics dashboard for token markets on Robinhood Chain. Track indexed V3 trading fees, creator and protocol allocations, estimated USD values, and market-level breakdowns with transparent data coverage.

Tech StackReact, Node, Web3, TypeScript
Builder
XXencra
DeFiInfra

Peridot Finance

Lending, Uniswap v4 liquidity and leveraged long/short markets for Robinhood Stock Tokens, deployed on Robinhood Chain mainnet with USDG at the center.

Tech StackNext, Web3, Ethers, Solidity, Node, PostgreSQL, Chainlink, Privy
Builder
RRene Async
DeFiRWA

Lockgate Finance

Exit markets for gated private credit funds. Built on Arbitrum and Robinhood chain.

Tech StackReact, Solidity, Next
Builder
GGabriel Antony
DeFiInfraRWA

GAGE.CASH

Open credit layer for borrowing & lending with no liquidation risk for RWAs & Long tail assets.

Tech StackSolidity, Next, React, Node, Foundry, viem, Ponder, Uniswap v4
Builder
BBassem Boulfarkat
DeFiAIRWA

Zeno

Zeno - Turn any investment thesis into a tradable portfolio. Create and invest in tokenized baskets of stocks, pre-IPO assets and meme tokens, all through one ERC-20 token.

Tech StackReact, Web3, Ethers, Solidity, Node
Builder
AAshish Gupta
DeFiInfraRWA
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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