Smart Contract for Crowdfunding Platforms

Objective:

To design and implement a decentralized crowdfunding system using smart contracts on a blockchain network, ensuring transparency, security, and automation in fundraising efforts.

Key Features:

Decentralization – No third-party intermediaries; funds and processes are controlled by code.

Transparency – All transactions and contract logic are visible on the blockchain.

Automatic Fund Release – Funds are released only if campaign goals are met.

Refund Mechanism – Contributors get their money back if funding goals are not achieved.

Milestone-Based Funding – Project creators can receive funds in stages based on progress.

Immutable Records – All contributions and actions are permanently stored on-chain.

Technologies Used:

Blockchain Platform: Ethereum

Smart Contract Language: Solidity

Development Framework: Hardhat or Truffle

Frontend: React.js or HTML/CSS/JavaScript

Wallet Integration: MetaMask

Backend (Optional): Node.js or Firebase (for off-chain data)

IPFS (Optional): For storing project media or documents

How It Works:

Project Creation: Creators deploy a smart contract defining funding goal, deadline, and description.

Contributions: Users send cryptocurrency (e.g., ETH) to the contract as backers.

Goal Check:

If the goal is reached by the deadline, funds are released to the creator.

If not, contributors can claim refunds.

Milestone Reviews (optional): Funds can be released in phases after meeting preset milestones.

Governance (optional): Backers can vote on fund release or project changes.

Benefits:

Eliminates Trust Issues – Code governs the process, not people.

Global Access – Anyone with internet and crypto wallet can participate.

Reduced Fees – No need for platform commissions or banks.

Security – Immutable contracts and cryptographic protection.

Auditability – Anyone can verify how funds are used.