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Season 1 · DeFi & Open Finance

NuriArslan

NuriArslan

WithdrawnDeFi & Open Finance

by n_ars01 · submitted Jul 20, 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

HelloIOPN is a simple smart contract deployed on the IOPN Testnet. It stores a message on-chain and allows users to update and read it through public functions. This project demonstrates basic smart contract deployment and interaction on the OPN blockchain.

Why

The purpose of this project is to explore smart contract development on IOPN, learn how on-chain applications work, and gain hands-on experience with deploying and interacting with contracts.

How it works

  • The contract stores a public text message.
  • Anyone can read the current message using the getMessage() function.
  • Anyone can update the message using the setMessage() function.
  • Every update creates an on-chain transaction that can be verified on the blockchain.

Features

  • Simple and lightweight smart contract
  • Public read and write functions
  • Fully deployed on IOPN Testnet
  • Demonstrates basic on-chain data storage and interaction

Roadmap

02/03

What ships next.

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

Roadmap

Phase 1 - Initial Release

  • Deploy the HelloIOPN smart contract on IOPN Testnet.
  • Test public read and write functions.
  • Verify the contract and ensure on-chain accessibility.

Phase 2 - Improvements

  • Add ownership and access control.
  • Optimize gas usage.
  • Improve contract security and documentation.

Phase 3 - New Features

  • Support multiple messages.
  • Add event logging for message updates.
  • Build a simple frontend for interacting with the contract.

Phase 4 - Future Plans

  • Deploy on the IOPN mainnet after testing.
  • Expand the project into a larger decentralized application.
  • Continue improving functionality 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.

  • 01iOPNContract01Primary

    0x73Ff4DB6DFb992980442970d71574C7659F1866a

    tx 0x302507c0f4e66cce2e65e3ce21da07a02847a4d915df8bc0962a8f5a15db8bf9

    deployed Jul 17, 2026 · block 20637426