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Season 1 · DeFi & Open Finance

OPN Community Guestbook

A community guestbook smart contract built on OPN Chain.

WithdrawnDeFi & Open Finance

by malamsunyi94 · submitted May 28, 2026

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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 Guestbook is a lightweight Web3 guestbook built on OPN Chain.

Users can connect their wallet, send messages on-chain, and interact directly with a public smart contract through a simple decentralized interface.

The project combines:

  • Solidity smart contracts
  • Wallet interaction
  • On-chain social interaction
  • Community participation

Why

The purpose of this project is to explore decentralized social interaction and builder identity inside the OPN ecosystem.

This project also helps expand knowledge in:

  • Smart contract development
  • Web3 interaction
  • Decentralized application design
  • On-chain community engagement

How it works

  • Users connect their wallet
  • Messages are submitted directly to the smart contract
  • Every interaction is stored on-chain
  • The contract remains publicly accessible for all users

Roadmap

02/03

What ships next.

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

Q1 · Current

  • Deploy and improve the OPN Guestbook smart contract
  • Expand Web3 wallet interaction features
  • Improve frontend UI and user experience
  • Increase on-chain community engagement

Q2

  • Add message history viewer
  • Add wallet-based profiles
  • Integrate transaction explorer links
  • Improve contract optimization and structure

Beyond

  • Build more interactive on-chain social tools
  • Explore governance and identity-based dApps
  • Continue building publicly on OPN Chain

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.

  • 01OPNGuestbookPrimary

    0xF339E39c96df9Ca92145123604EEca69C156cd01

    tx 0xce3b59b596c548acb27d0649a43329d54cee4627a2aa3f61ba80e55234f69824

    deployed May 28, 2026 · block 17451965