Back to leaderboard
Season 1 · DeFi & Open Finance

AroDrop

An immutable, on-chain activity tracker and data registry built on OPN Chain

Stage 1, ReviewDeFi & Open Finance

by qnso_ · submitted May 30, 2026

Community votes

0

Voting opens when this submission reaches the Top 10 stage.

Overall score

42.4/ 100

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.

Project Overview

AroDrop is an immutable, on-chain activity tracker built as a secure data registry. It allows decentralized applications and ecosystem participants to store and audit their interaction history directly on the blockchain.

Technical Architecture (Q1 Backend)

The backend is built entirely using the Pythonic Vyper smart contract language and is deployed natively on the OPN Testnet.

Key architectural components include:

  • Data Storage: Uses an optimized custom DropLog struct storing three primary elements: the protocol name string, the specific task description string, and a block-generated uint256 timestamp.
  • State Operations: Features a public recordTask function that handles state updates by securely appending new interaction records into an array mapped to the sender.
  • Data Retrieval: Exposes an external @view function getTotalLogs to allow gas-free queries of total stored array lengths.

Roadmap

02/03

What ships next.

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

Q1 - Core MVP Backend (Completed)

  • Design and test the underlying data tracking schemas using Vyper.
  • Deploy the compiled contract bytecode live onto the OPN Testnet.
  • Connect and verify the live deployment footprint within the OPN Builders platform registry.

Future Development (Post-Submission)

  • Q2: Design a dark-themed visual frontend dashboard utilizing Tailwind CSS utility classes.
  • Q3: Implement web3 connection scripts to seamlessly stream logs from the deployed contract to a web browser.

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.

  • 01arodropPrimary

    0x5Eea27820952bA007dA11AEAdfD5C1AeCbE9FE48

    tx 0xaad6d303797e071b52d8a9a2c3378f7091208a76380780f4c847d1de46401da0

    deployed May 29, 2026 · block 17527730