krackhack26

PayStream: Real-Time Payroll Streaming on HeLa Network Overview PayStream is a decentralized payroll management system that transitions traditional bi-weekly or monthly salary cycles into a continuous, second-by-second financial flow. Built on the HeLa Network, the platform addresses the critical barriers of high gas fees and price volatility that have previously made real-time “Money Streaming” impractical for large-scale enterprise use.

By leveraging HeLa’s stablecoin-native gas architecture (HLUSD), PayStream provides businesses with a predictable, low-cost solution to compensate the modern workforce in real-time.

Problem Statement Traditional payroll is rigid and fails to align with the immediate liquidity needs of employees. While blockchain-based streaming protocols exist, high transaction costs on legacy networks like Ethereum prevent businesses from scaling these solutions to hundreds of employees. PayStream solves this by utilizing HeLa’s high-throughput, low-latency infrastructure to ensure that gas costs remain negligible and stable.

Key Features

Smart Contract Engine The core logic is written in Solidity and deployed on the HeLa Testnet. It utilizes a flow-rate calculation to determine real-time balances:

Precision Math: Implements 18-decimal fixed-point arithmetic to prevent rounding errors during per-second value transfers.

HLUSD Integration: Uses HLUSD as the primary asset for both salary payments and gas fees, ensuring architectural consistency.

HR Administration Dashboard A comprehensive management portal for payroll administrators to:

Stream Management: Start, Pause, and Cancel salary streams for individual employees or departments.

Treasury Oversight: Monitor total locked value (TVL) and manage corporate HLUSD balances.

Access Control: Robust administrative permissions utilizing OpenZeppelin standards to ensure only authorized HR personnel can initiate streams.

Employee Self-Service Portal A user-centric interface for workers to track their earnings in real-time:

Real-time Counter: A live dashboard showing accumulated earnings since the last withdrawal.

On-Demand Withdrawal: Allows employees to “Claim” accrued funds directly to their HeLa-compatible wallet at any time.

Automated Compliance (Tax Module) A built-in logic gate that automatically redirects a configurable percentage (default 10%) of every stream to a designated “Tax Vault,” simplifying corporate tax withholding and reporting.

Technical Stack Blockchain: HeLa Network (Testnet)

Smart Contracts: Solidity, OpenZeppelin

Frontend: React.js / Next.js

Web3 Integration: Ethers.js / Viem

Gas Token: HLUSD

Evaluation Metrics Compliance Streaming Efficiency: Accurate per-second calculations without cumulative loss.

Gas Optimization: Minimized state updates to leverage HeLa’s cost-efficiency.

Security: Implemented ReentrancyGuard and strict AccessControl.

Compliance: Automated 10% tax redirection logic.

Getting Started Prerequisites Node.js (v16.x or higher)

MetaMask or a HeLa-compatible wallet

HeLa Testnet HLUSD for gas and testing

Installation Clone the repository:

Bash git clone https://github.com/wrathrager/krackhack26.git cd krackhack26 Install dependencies:

Bash npm install Configure Environment Variables: Create a .env file in the root directory and add your HeLa Testnet credentials:

Code snippet PRIVATE_KEY=your_private_key HELA_RPC_URL=https://testnet-rpc.helachain.com Deploy Smart Contracts:

Bash npx hardhat run scripts/deploy.js –network hela Run the Frontend:

Bash npm run dev Future Roadmap Yield Integration: Implementing logic to deposit idle treasury funds into HeLa-native DeFi protocols to earn interest for the employer.

Scheduled Bonuses: Adding “Streaming Spikes” for performance-based rewards.

Fiat On/Off Ramps: Integration with local payment gateways to convert HLUSD to local currency seamlessly.

License Distributed under the MIT License. See LICENSE for more information.