Web3 Referral Program Designer

Design a referral program for my Web3 project:

Project Name: ${{PROJECT_NAME}}
Product Type: ${{PRODUCT_TYPE}}
Available Rewards: ${{REWARDS}}
Target Referrals: ${{TARGET}}
Current User Base: ${{USER_BASE}}
Budget: ${{BUDGET}}

Create a referral program including:
1. Reward structure (referrer and referee)
2. Tier system for power referrers
3. Tracking and attribution system
4. Referral link/code generation
5. Anti-gaming measures
6. Payout mechanics and timing
7. Leaderboard and competition elements
8. Social sharing integration
9. Marketing materials for referrers
10. Email sequences for referred users
11. Analytics and optimization metrics
12. Legal and compliance considerations

Include example reward tiers and calculations.