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Season 1 · DeFi & Open Finance

OPN Builder Board

Claim your on-chain reputation badge based on your real activity on OPN Chain testnet and submit your project built on IOPN Chain

Stage 1, ReviewDeFi & Open Finance+1 co-builder

by perorworld · submitted May 29, 2026

Community votes

0

Voting opens when this submission reaches the Top 10 stage.

Overall score

/ 100

Weighted average across the 5 judging criteria.

Built with

01/04

Confirmed co-builders.

Each one signed in and confirmed they helped on this submission. Co-build credit travels with their wallet too.

Description

02/04

What the builder said.

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

What we built OPN Builder Board is a decentralized reputation and badge system built on OPN Chain. Builders connect their wallet, get their badge automatically calculated from their real onchain transaction count, and claim it permanently onchain also you submit the project you built on IOPN. WHY There was no easy way for OPN Chain builders to prove their on-chain activity or earn a verifiable credential based on real contributions. OPN Builder Board solves this by making builder reputation transparent, on-chain, and claimable by anyone. How it works

Connect your wallet to OPN Testnet Click Check My Score the dApp reads your real transaction count directly from the OPN Chain RPC Your badge is calculated automatically: Gold, Silver, Bronze, Newbie. Click Claim Badge writes your badge on-chain, creating a real OPN transaction Builders can also register a full profile with a public pledge of what they are building on OPN Chain A live leaderboard ranks all builders and claimants by score A public Pledge Board shows every builder's commitment to the ecosystem

Tech stack

Solidity smart contract deployed on OPN Chain Testnet (Chain ID: 984) Pure HTML/JS frontend with no frameworks and backend ethers.js v6 for wallet connection and contract interaction eth_getTransactionCount via OPN RPC for automatic TX-based scoring Deployed on GitHub Pages / Vercel.

Roadmap

03/04

What ships next.

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

Q2 2026 · Now

OPN Builder Board live on OPN Chain testnet Automatic badge claiming based on real on-chain transaction count Public builder registration with pledge board and leaderboard Badge tiers: Gold, Silver, Bronze, Newbie

Q3 2026 · Mainnet Launch

Deploy OPN Builder Board on IOPn mainnet the day it goes live Migrate all testnet builder profiles and badges to mainnet Launch builder profile NFT your badge becomes a permanent on-chain credential Open referral system — builders earn bonus points for onboarding new builders

Q4 2026 · Token & Rewards

Launch $BUID token to reward real on-chain builders Airdrop allocation weighted by badge tier and testnet activity — Gold builders receive the highest allocation Staking mechanism — builders stake $BUID to boost their reputation score Partner with IOPn ecosystem projects to accept $BUID as a builder credential

Beyond

Cross-chain reputation — import your OPN builder score to other EVM chains DAO governance — $BUID holders vote on badge tier thresholds and reward distribution API for third-party projects to verify builder credentials on-chain Mobile-friendly builder passport — shareable proof of your OPN Chain contribution

On-chain proof

04/04

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.

  • 01OPNBuilderBoardPrimary

    0x3A28259Df89EabCc90d63126EBE8df4Ac2D1De17

    tx 0xf97ef0d8a3445a1ddac207dd035c85c879e599a9a21f0ac3d636cf9d54b5890b

    deployed May 29, 2026 · block 17536935