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Season 1 · DeFi & Open Finance

OPN Builder Hub

A simple dashboard for exploring and interacting with the OPN ecosystem.

WithdrawnDeFi & Open Finance

by rajenumula1988 · submitted Jul 21, 2026

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Weighted average across the 5 judging criteria.

Description

01/03

What the builder said.

Written by the team, rendered as the markdown they typed in the submission wizard.

What We Built

OPN Builder Hub is a simple decentralized application that allows users to connect their wallet and interact with the HelloOPN smart contract deployed on the OPN network.

Why

I built this project to learn the complete OPN development workflow, including writing a Solidity smart contract, deploying it, verifying the source code, and hosting the frontend on Vercel. It is a beginner-friendly project that demonstrates the basics of Web3 development on OPN.

How It Works

  1. Open the OPN Builder Hub website.
  2. Click the Connect Wallet button.
  3. Connect your wallet.
  4. Interact with the HelloOPN smart contract.
  5. The frontend communicates with the deployed contract through the OPN network.

Tech Stack

  • Solidity
  • HTML
  • CSS
  • JavaScript
  • GitHub
  • Vercel

Roadmap

02/03

What ships next.

The builder's own next-quarter plan. Use it to gauge follow-through and ambition.

Q1

  • Improve the user interface and overall user experience.
  • Add better wallet connection and error handling.
  • Improve project documentation.

Q2

  • Add more OPN smart contract examples.
  • Integrate additional OPN ecosystem features.
  • Optimize the application for mobile devices.

Beyond

  • Expand OPN Builder Hub with advanced Web3 features.
  • Add educational resources for new OPN developers.
  • Continue improving the project based on community feedback.

On-chain proof

03/03

1 contract on OPN Chain.

The chain itself confirmed every deployment is valid, signed by the builder's wallet, and inside the season's window.

  • 01HelloOPNPrimary

    0x62F553E46E72060e243CBc0E8B6Efc56567360B5

    tx 0xd79213a3ffee696e0bb0e6a6385d72687114a0c760803f6dea902d8f5413f55c

    deployed May 28, 2026 · block 17456502