BuilderBadge Multichain

Multichain Soulbound Badge (ERC-721, one per wallet).
Verified smart contracts deployed on Celo (mainnet) and expanding to Base and other EVM-compatible networks.

This project provides a secure and friendly minting experience, allowing users to claim their badge for free.

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🧭 Networks

• Celo (mainnet) — Address: 0x41e00f57D18a8e4e0E090E4032E3FcEb4C2379B2
  TokenURI (IPFS): ipfs://bafkreiaq4tg3zzetq4lgdjzc3gloyelq4hrzq7gghu2xdtyb6jfujp6bg4

• Base (mainnet) — Address: 0xBceF870dC2ED8Cd7EAB9aA44870A4766e793fe4C
  TokenURI (IPFS): ipfs://bafkreiem47nvbvx63n5cbteepr44mdr6trfn7ojojje6mpmpctjgmxz6i4

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🎯 Project Goals

• Soulbound Badge: non-transferable, one per wallet.
• Secure deployments with verified contracts.
• Start on Celo, expand to Base, Optimism Superchain, and other EVM networks.
• Friendly UI for mass adoption.

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🛠 Tech Stack

• Solidity — Smart contract logic.
• JavaScript / Ethers.js — Frontend + scripts.
• Tatum RPC — Gateway for Celo + utilities.
• MetaMask / Wallets — User interaction.

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📂 Repository Structure (planned)

builderbadge-multichain/
├── contracts/
│ ├── BuilderBadge.abi.json
│ ├── BuilderBadge.celo.abi.json
│ └── BuilderBadge.base.abi.json
│
├── deploy/
│ ├── celo/
│ │ └── addresses.json
│ └── base/
│ └── addresses.json
│
├── frontend/
│ ├── mint-celo/
│ │ ├── index.html
│ │ └── app.js
│ └── mint-base/
│ ├── index.html
│ └── app.js
│
├── metadata/
│ ├── builder-badge-celo.json
│ ├── builder-badge-base.json
│ └── sample.json
│
├── scripts/
│ ├── common/
│ │ └── rpc.js
│ └── celo/
│ └── claim-check.js
│
├── security/
│ └── SECURITY.md
│
├── .github/
│ ├── ISSUE_TEMPLATE/
│ │ ├── bug_report.md
│ │ ├── feature_request.md
│ │ └── config.yml
│ ├── pull_request_template.md
│ └── FUNDING.yml
│
├── .gitignore
├── LICENSE
├── README.md
└── CONTRIBUTING.md

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📜 License

MIT License © 2025 Dany Zly