LayerEdge Staking Protocol

A tiered staking smart contract system built on Solidity that provides different APY rates based on staking position using a first-come-first-serve model.

Overview

The LayerEdge Staking Protocol implements a three-tier reward system:

• Tier 1 (50% APY): First 20% of stakers
• Tier 2 (35% APY): Next 30% of stakers
• Tier 3 (20% APY): Remaining 50% of stakers

Users are assigned tiers based on their joining order, incentivizing early participation.

Features

• 🎯 Tiered Rewards: Different APY rates based on staking position
• 🔄 Upgradeable: UUPS proxy pattern for future improvements
• ⏰ 7-day Unstaking Window: Security mechanism for withdrawals
• 🛡️ Security: Pausable, reentrancy protection, and access control
• 💰 Native Token Support: Stake both ERC20 tokens and native ETH (via WETH)
• 📊 Interest Compounding: Optional automatic interest compounding

Deployment Networks

• Base Sepolia Testnet
• Edgen Testnet
• Edgen Mainnet

Quick Start

Prerequisites

• Foundry
• Node.js and npm

Installation

git clone <repository-url>
cd edgen-staking
forge install

Build

make build

Deploy

# Local development
make deploy-anvil

# Base Sepolia
make deploy-staking-base-sepolia

# Edgen networks
make deploy-staking-edgen-testnet
make deploy-staking-edgen-mainnet

Architecture

• LayerEdgeStaking.sol: Main staking contract with tiered rewards
• FenwickTree: Efficient data structure for tier calculations
• WETH9: Wrapped ETH for native token staking support

Environment Variables

Create a .env file with:

PRIVATE_KEY=your_private_key
BASE_SEPOLIA_RPC_URL=your_base_sepolia_rpc
EDGEN_RPC_URL=your_edgen_rpc
BASESCAN_API_KEY=your_basescan_api_key

Testing

forge test

License

MIT