StakeDrop: A Multi-Tier Staking Incentive Model

Overview: Why StakeDrop Matters?

While AirDrop rewards existing token holders, StakeDrop is designed to attract new participants, enhance liquidity security, and establish a long-term staking culture. Unlike traditional staking mechanisms that offer static rewards, IOST's StakeDrop mechanism is dynamic, multi-tiered, and directly proportional to staking duration.

This staking-first distribution model achieves three key objectives:

1. Encouraging Long-Term Commitment

   • Users receive significantly higher rewards when they commit to extended staking periods (up to 2 years).
   • Rewards are non-linear, meaning that longer commitments receive exponentially higher incentives rather than simple linear growth.

2. Enhancing Network Stability

   • By locking up tokens, StakeDrop reduces circulating supply, leading to a more stable token economy.
   • Discourages short-term speculation by penalizing early withdrawals.

3. Fair & Proportional Distribution

   • Unlike fixed APY staking, StakeDrop dynamically adjusts rewards based on staking tiers.
   • Users are rewarded based on their real staking time, ensuring fairness.

StakeDrop Token Allocation

A total of 1.4924 billion IOST (35% of the initial token release) is allocated to StakeDrop, split into two seasons:

StakeDrop Season	Allocation (IOST)
Season 1	852.8M IOST
Season 2	639.6M IOST

• Season 1 focuses on early adopters, allowing users to enter the program with full tiered staking rewards.
• Season 2 adjusts multipliers based on Season 1 data, ensuring fair allocation and adaptive incentives.

Unlike traditional staking models where early participants drain the reward pool, StakeDrop's season-based approach prevents excessive early rewards and ensures long-term staking participation.

Staking Tiers & Reward Multipliers

To incentivize longer staking durations, StakeDrop employs a four-tier system where users can choose their commitment level. The longer the staking period, the higher the reward multiplier.

Staking Duration	Reward Multiplier
90 Days	1.5×
180 Days	2.0×
365 Days	3.0×
730 Days	4.5×

Instead of a linear multiplier increase, StakeDrop rewards exponentially higher multipliers for longer durations. This ensures that users who stake for 730 days receive 4.5× rewards, making long-term staking far more attractive than short-term participation.

Mathematical Model for Reward Calculation

Each user's effective staking multiplier $M_{\text{actual}}(t)$ is dynamically adjusted based on actual staking duration $t$:

$$M_{\text{actual}}(t)=\{\begin{array}{ll}0,& t<90,\\ 1.5+(2.0-1.5)\cdot \frac{t-90}{90},& 90\le t<180,\\ 2.0+(3.0-2.0)\cdot \frac{t-180}{185},& 180\le t<365,\\ 3.0+(4.5-3.0)\cdot \frac{t-365}{365},& 365\le t<730,\\ 4.5,& t\ge 730.\end{array}$$

This model ensures:

✅ Proportional growth for all staking durations.
✅ Disincentivizing early exits by ensuring that early unstakers receive significantly lower multipliers.
✅ Optimizing network stability by enforcing a long-term staking culture.

Reward Distribution Formula

The total StakeDrop reward is distributed among all participants based on their staked amount and their staking multiplier:

$$R_i=R_{\text{pool}}\times \frac{s_i\times M_{\text{actual},i}}{\sum _j(s_j\times M_{\text{actual},j})}$$

Where:

• $R_i$ = Total reward for user $i$.
• $R_{\text{pool}}$ = Total StakeDrop reward pool.
• $s_i$ = User's staked amount.
• $M_{\text{actual},i}$ = User's final staking multiplier based on duration $t_i$.

This mechanism ensures fair proportional allocation—users who stake longer receive a higher share of the total reward pool.

Early Exit Penalty Mechanism

To prevent abuse and ensure staking commitment, StakeDrop enforces a strict early exit penalty:

Penalty Rules for Early Exit

1. Multiplier Recalibration:

   • If a user exits before completing their committed staking duration, their reward multiplier is recalculated based on actual staking days.
   • This results in significantly lower staking rewards for early exits.

2. 30% Penalty on Unvested Rewards:

   • Users who exit before their staking period ends will forfeit 30% of their unvested rewards.
   • These forfeited rewards are reallocated to the Foundation for redistribution to long-term holders.

Example of Early Exit Calculation

Let's consider two users, Alice and Bob, who stake 100,000 IOST but exit at different times.

User	Committed Staking Period	Actual Staking Period	Reward Multiplier	Penalty Applied?
Alice	365 Days	200 Days	2.1×	Yes (Penalty Applied)
Bob	730 Days	730 Days	4.5×	No Penalty

Example Calculation for Alice (Early Exit)

• Alice originally committed to 365 days (3.0× multiplier).
• However, she exited after 200 days, so her new multiplier is only 2.1×.
• She loses 30% of her remaining rewards due to early exit.

If her original reward was 30,000 IOST, she now receives:
30,000 × 2.1/3.0 = 21,000 IOST

After applying the 30% penalty:
21,000 × (1−0.3) = 14,700 IOST

Thus, Alice receives only 14,700 IOST instead of 30,000 IOST, discouraging early exits.

Benefits of StakeDrop's Design

Why is IOST's StakeDrop Model Better?

✅ Ensures Token Circulating Supply is Managed – By locking tokens for extended periods, StakeDrop reduces sell pressure and price volatility.
✅ Rewards Real Commitment – Longer staking durations yield exponentially higher rewards.
✅ Protects Against Early Sell-Offs – The penalty structure prevents quick profit-taking and market dumping.
✅ Fair Reward Allocation – Instead of favoring early participants, StakeDrop distributes rewards fairly based on actual staking duration.

Feature	IOST StakeDrop	Traditional Staking
Dynamic Multipliers	✅ Yes	❌ No
Non-Linear Rewards	✅ Yes	❌ No
Early Exit Penalty	✅ Yes (30%)	❌ No
Vesting Model	✅ Gradual Release	❌ Often Immediate

The Future of Staking with StakeDrop

IOST's StakeDrop mechanism is more than just a staking program—it is a strategic incentive model designed to fortify network stability, encourage long-term commitment, and disincentivize short-term speculation.

By integrating multi-tier staking, non-linear multipliers, and strict early exit penalties, StakeDrop establishes a strong economic foundation that benefits both individual stakers and the entire ecosystem.

This staking model not only enhances token utility but also sets a new industry standard for how decentralized networks should handle staking rewards, liquidity, and commitment incentives.

Security & Compliance

Smart Contract Audit

To ensure the highest standards of security and reliability for our StakeDrop mechanism, IOST has undergone a comprehensive third-party security audit of all related smart contracts.

AUDIT REPORT

The full audit report conducted by professional blockchain security firm is available for public review:

📄 IOST StakingDrop Solidity Smart Contract Audit Report

The audit confirms that the StakeDrop contracts:

• Contain no critical security vulnerabilities
• Properly implement the staking mechanics described in this document
• Handle rewards calculation and distribution as specified
• Include appropriate safeguards against common attack vectors

We are committed to maintaining the highest security standards as we continue to develop and expand the IOST ecosystem.