Hello Judges!
we built FundChain.
Programmable Welfare Distribution System.
The Challenge
The Transparency
& Efficiency Crisis
"Welfare without corruption. Transparency by design."
Core Requirements
Targeted Welfare Delivery
Rule-Based Fund Usage
Transparent & Auditable
Zero Misuse Mechanisms
Admin Verification
Decentralized Proof
Ensuring Trust is Hard
// but we solved it //
End-to-End Transparency
Mechanism: Blockchain Auditability
Claim Verification
Mechanism: Admin / On-chain Validation
Role-Based Access
Mechanism: Admin, Beneficiary, Merchant
Restricted Spending
Mechanism: Escrow Control Logic
Decentralized Proof
Mechanism: IPFS / Pinata Storage
Transaction Security
Mechanism: MetaMask / Ethers.js
Introducing FundChain
A programmable welfare system merging Blockchain trust with absolute transparency.
Blockchain Powered Escrow
Uses customized Smart Contracts to lock funds in Escrow.
Eliminates the "Cash Misuse" problem. Beneficiaries only authorize, the Blockchain pays the Merchant directly.
Admin Driven Verification
Powered by cryptographic proofs and rigorous admin oversight.
Ensures accurate amounts, categorizes merchants, and flags frauds before an Admin approves to release Funds on-chain.
The Engine Under the Hood
we pushed Web3 past the wallet layer
System Architecture
Smart Contract
- State Isolation: Strict registry validation before transfers.
- RBAC: Used for administration protecting treasury arrays.
- Hardhat EVM tests proving deterministic logic.
Verifiable Proofs
- Admin Dashboard: Streamlines invoice and claim evaluation.
- IPFS / Pinata: Receipt uploads to decentralized storage.
- On-chain claims verified via standard Web3 signing.
Tech Stack
| Category | Technology | Purpose |
|---|---|---|
| Frontend | Next.js, React, Tailwind CSS | User interface and application logic |
| Smart Contracts | Solidity, Hardhat | On-chain logic, escrow, and registries |
| Web3 Integration | Ethers.js / Viem, MetaMask | Blockchain interaction and wallet connection |
| Storage | IPFS / Pinata | Decentralized storage for receipts and bills |