DEFAI Staking Program

A Solana program for staking DEFAI tokens with tiered APY rewards and sustainable tokenomics.

Overview

The DEFAI Staking program enables users to:

• Stake DEFAI tokens in three tiers (Gold, Titanium, Infinite)
• Earn APY rewards based on stake amount
• Compound rewards to increase stake
• Time-locked withdrawals with penalty system

Features

1. Staking Tiers

• Gold Tier: 10M - 99.99M DEFAI (0.5% APY)
• Titanium Tier: 100M - 999.99M DEFAI (0.75% APY)
• Infinite Tier: 1B+ DEFAI (1% APY)

2. Reward System

• Linear reward accrual based on tier APY
• Rewards funded through separate escrow account
• Compound functionality to reinvest rewards

3. Unstaking Rules

• 7-day initial lock period
• Early unstaking penalties:
  • < 30 days: 2% penalty
  • 30-90 days: 1% penalty

  • 90 days: No penalty

• Penalties redistributed to reward escrow

4. Security Features

• 48-hour timelock for admin changes
• Program pause functionality
• Separate escrow for reward distribution

Build Instructions

# Ensure you're in the security-auditor directory
cd security-auditor

# Build the program
anchor build --skip-lint

# The built program will be at:
# target/deploy/defai_staking.so

Program Addresses

• Program ID: DpAeweyqvHt7iuufYGoJC7oJXbpBNFgeDWCh2jKfwyWd
• Localnet: CyYfX3MjkuQBTpD8N3KLXBAr8Nik89f63FZ3jFVSMd6s

Initialization

The program requires initialization in the following order:

1. Initialize Program State

   await program.methods.initializeProgram(
     defaiMint  // DEFAI token mint address
   )

2. Initialize Reward Escrow

   await program.methods.initializeEscrow()

3. Fund Reward Escrow

   await program.methods.fundEscrow(
     amount  // Amount of DEFAI tokens to add to escrow
   )

Key Constants

// Tier Requirements (in DEFAI with 6 decimals)
pub const GOLD_MIN: u64 = 10_000_000 * 10^6;      // 10M DEFAI
pub const GOLD_MAX: u64 = 99_999_999 * 10^6;      // 99.99M DEFAI
pub const TITANIUM_MIN: u64 = 100_000_000 * 10^6; // 100M DEFAI
pub const TITANIUM_MAX: u64 = 999_999_999 * 10^6; // 999.99M DEFAI
pub const INFINITE_MIN: u64 = 1_000_000_000 * 10^6; // 1B DEFAI

// APY Rates (in basis points)
pub const GOLD_APY_BPS: u16 = 50;      // 0.5%
pub const TITANIUM_APY_BPS: u16 = 75;  // 0.75%
pub const INFINITE_APY_BPS: u16 = 100; // 1%

// Timelock
pub const ADMIN_TIMELOCK_DURATION: i64 = 48 * 60 * 60; // 48 hours

Usage Examples

Stake Tokens

await program.methods.stakeTokens(
  new BN(50_000_000 * 10**6)  // Stake 50M DEFAI
)

Claim Rewards

await program.methods.claimRewards()

Compound Rewards

await program.methods.compoundRewards()

Unstake Tokens

await program.methods.unstakeTokens(
  new BN(20_000_000 * 10**6)  // Unstake 20M DEFAI
)

Account Structure

ProgramState

• Tracks global staking metrics
• Stores authority and mint information
• Manages pause state

UserStake

• Individual staking position
• Tracks rewards earned and claimed
• Stores tier and lock information

RewardEscrow

• Holds reward tokens for distribution
• Tracks total distributed rewards

Security Features

1. Time-locked Admin Actions: 48-hour delay for critical changes
2. Pause Mechanism: Emergency pause for protocol protection
3. Escrow System: Separate reward pool prevents insolvency
4. Lock Periods: Prevents gaming through quick stake/unstake
5. Penalty System: Discourages short-term staking

Error Codes

• AmountTooLow: Stake amount below minimum tier requirement
• InsufficientStake: Attempting to unstake more than staked
• TokensLocked: Tokens still in lock period
• NoRewards: No rewards available to claim
• InvalidAuthority: Unauthorized admin action
• ProgramPaused: Program is paused
• InsufficientEscrowBalance: Escrow lacks funds for rewards

Events

• StakeEvent: Emitted when tokens are staked
• UnstakeEvent: Emitted when tokens are unstaked
• RewardsClaimedEvent: Emitted when rewards are claimed
• RewardsCompoundedEvent: Emitted when rewards are compounded
• EscrowFundedEvent: Emitted when escrow is funded
• ProgramPausedEvent: Emitted when program is paused/unpaused

Admin Functions

1. Update Authority: Propose and accept authority changes (48h timelock)
2. Update DEFAI Mint: Change the accepted token mint
3. Pause/Unpause: Emergency controls for the program
4. Fund Escrow: Add rewards to the distribution pool