> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fene.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Halving Schedule

> Block reward reduction timeline to control inflation

## Introduction

Fenine Network implements a **halving schedule** that systematically reduces block rewards over time. This mechanism ensures long-term sustainability by controlling inflation while maintaining security incentives for validators.

<Info>
  **Key Points**:

  * **Initial Block Reward**: 3.5 FEN per block
  * **Halving Interval**: Every 10,512,000 blocks (\~1 year)
  * **First Halving**: Block 10,512,000 (Q1 2026)
  * **Final Reward**: 0.109375 FEN per block (after 5 halvings)
</Info>

## Halving Mechanism

### How It Works

Every **10,512,000 blocks** (\~365 days), the block reward is reduced by **50%**.

**Formula**:

$$
R_n = R_0 \\times \\left(\\frac{1}{2}\\right)^n
$$

Where:

* $R_n$: Block reward after $n$ halvings
* $R_0$: Initial block reward (3.5 FEN)
* $n$: Number of halvings

### Block Time Calculation

With 3-second block times:

$$
\\text{Blocks per year} = \\frac{365.25 \\times 24 \\times 60 \\times 60}{3} = 10,512,000 \\text{ blocks}
$$

## Halving Timeline

<Tabs>
  <Tab title="Schedule Overview">
    | Halving     | Block Height | Date (Est.) | Block Reward | Annual Emission | % of Initial |
    | ----------- | ------------ | ----------- | ------------ | --------------- | ------------ |
    | **Genesis** | 0            | 2025-01-01  | 3.5 FEN      | 36,792,000 FEN  | 100%         |
    | **1st**     | 10,512,000   | 2026-01-01  | 1.75 FEN     | 18,396,000 FEN  | 50%          |
    | **2nd**     | 21,024,000   | 2027-01-01  | 0.875 FEN    | 9,198,000 FEN   | 25%          |
    | **3rd**     | 31,536,000   | 2028-01-01  | 0.4375 FEN   | 4,599,000 FEN   | 12.5%        |
    | **4th**     | 42,048,000   | 2029-01-01  | 0.21875 FEN  | 2,299,500 FEN   | 6.25%        |
    | **5th**     | 52,560,000   | 2030-01-01  | 0.109375 FEN | 1,149,750 FEN   | 3.125%       |
    | **6th+**    | 63,072,000+  | 2031+       | \<0.11 FEN   | Decreasing      | \<3%         |

    <Info>
      After 5 halvings, block rewards become negligible. Validators increasingly rely on transaction fees for revenue.
    </Info>
  </Tab>

  <Tab title="Year by Year">
    ### Year 1 (2025)

    * **Period**: Block 0 - 10,512,000
    * **Block Reward**: 3.5 FEN
    * **Daily Emission**: \~100,800 FEN
    * **Annual Emission**: 36,792,000 FEN
    * **Inflation Rate**: \~36.8% (of 100M max supply)

    ### Year 2 (2026)

    * **Period**: Block 10,512,001 - 21,024,000
    * **Block Reward**: 1.75 FEN (halved)
    * **Daily Emission**: \~50,400 FEN
    * **Annual Emission**: 18,396,000 FEN
    * **Inflation Rate**: \~13.5% (of circulating supply)

    ### Year 3 (2027)

    * **Period**: Block 21,024,001 - 31,536,000
    * **Block Reward**: 0.875 FEN
    * **Daily Emission**: \~25,200 FEN
    * **Annual Emission**: 9,198,000 FEN
    * **Inflation Rate**: \~6.7%

    ### Year 4 (2028)

    * **Period**: Block 31,536,001 - 42,048,000
    * **Block Reward**: 0.4375 FEN
    * **Daily Emission**: \~12,600 FEN
    * **Annual Emission**: 4,599,000 FEN
    * **Inflation Rate**: \~3.4%

    ### Year 5 (2029)

    * **Period**: Block 42,048,001 - 52,560,000
    * **Block Reward**: 0.21875 FEN
    * **Daily Emission**: \~6,300 FEN
    * **Annual Emission**: 2,299,500 FEN
    * **Inflation Rate**: \~1.7%
  </Tab>

  <Tab title="Cumulative Supply">
    Total FEN minted through block rewards:

    | Year | Cumulative Emission | % of Max Supply |
    | ---- | ------------------- | --------------- |
    | 2025 | 36,792,000          | 36.79%          |
    | 2026 | 55,188,000          | 55.19%          |
    | 2027 | 64,386,000          | 64.39%          |
    | 2028 | 68,985,000          | 68.99%          |
    | 2029 | 71,284,500          | 71.28%          |
    | 2030 | 72,434,250          | 72.43%          |
    | 2035 | \~73,500,000        | \~73.5%         |
    | 2050 | \~73,580,000        | \~73.58%        |

    **Maximum Theoretical Supply** (infinite halvings):

    $$
    S_{\\text{max}} = R_0 \\times B_{\\text{year}} \\times \\sum_{n=0}^{\\infty} \\left(\\frac{1}{2}\\right)^n = 3.5 \\times 10,512,000 \\times 2 = 73,584,000 \\text{ FEN}
    $$

    This is **73.58%** of the 100M max supply cap.
  </Tab>
</Tabs>

## Economic Impact

### Inflation Rate Over Time

<Tabs>
  <Tab title="Annual Inflation">
    Chart of inflation rate (% increase in circulating supply):

    ```
    Year 1:  36.8% ███████████████████████████████████████
    Year 2:  13.5% ███████████████
    Year 3:   6.7% ████████
    Year 4:   3.4% ████
    Year 5:   1.7% ██
    Year 6:   0.8% █
    Year 7:   0.4% 
    Year 8:   0.2% 
    Year 10: <0.1%
    ```

    **Trend**: Exponential decrease, approaching 0% inflation.
  </Tab>

  <Tab title="Real Inflation">
    Accounting for EIP-1559 burn mechanism:

    | Year | Block Emission | EIP-1559 Burn (est.) | Net Inflation      |
    | ---- | -------------- | -------------------- | ------------------ |
    | 2025 | +36.79M FEN    | -1.58M FEN           | +35.21M (+35.2%)   |
    | 2026 | +18.40M FEN    | -3.15M FEN           | +15.25M (+11.2%)   |
    | 2027 | +9.20M FEN     | -4.73M FEN           | +4.47M (+3.3%)     |
    | 2028 | +4.60M FEN     | -6.30M FEN           | **-1.70M (-1.3%)** |
    | 2029 | +2.30M FEN     | -7.88M FEN           | **-5.58M (-4.2%)** |

    <Info>
      **Deflationary by Year 4**: With moderate network activity, Fenine becomes deflationary after 2028.
    </Info>
  </Tab>

  <Tab title="Supply Curve">
    Total supply projection:

    ```
    100M ┤                                    ──────────── Max Cap
         │                          ──────────
     75M ┤                   ───────            Theoretical Max: 73.58M
         │             ──────
     50M ┤       ──────                         
         │   ────                               
     25M ┤───                                   
         │
       0 └────────────────────────────────────────────────
         2025  2027  2029  2031  2033  2035  2037  2039

    Rapid growth initially, then flattening towards asymptotic limit.
    ```
  </Tab>
</Tabs>

### Validator Economics

How halvings affect validator profitability:

**Year 1 (2025)**: High Rewards Era

* Block reward: 3.5 FEN
* Validator with 1% stake: \~367,920 FEN/year
* APY: **Very High** (early adopter advantage)

**Year 2 (2026)**: First Halving

* Block reward: 1.75 FEN (50% reduction)
* Same validator: \~183,960 FEN/year
* APY: **Still High** (50% of previous)
* **Mitigation**: Network growth, more transaction fees

**Year 3-4 (2027-2028)**: Transition Period

* Block rewards continue decreasing
* Transaction fees become significant
* Validators optimize for fee capture
* **APY**: Moderate but sustainable

**Year 5+ (2029+)**: Fee-Dominant Era

* Block rewards minimal
* 80%+ revenue from transaction fees
* High-activity validators earn more
* **APY**: Competitive with traditional finance

### Fee Market Evolution

As block rewards decrease, transaction fees become primary validator revenue:

| Year | Block Reward Revenue | Fee Revenue (est.) | Fee % of Total |
| ---- | -------------------- | ------------------ | -------------- |
| 2025 | 95%                  | 5%                 | 5%             |
| 2026 | 90%                  | 10%                | 10%            |
| 2027 | 80%                  | 20%                | 20%            |
| 2028 | 65%                  | 35%                | 35%            |
| 2029 | 45%                  | 55%                | 55%            |
| 2030 | 30%                  | 70%                | **70%**        |
| 2035 | \<10%                | >90%               | **>90%**       |

**Implication**: Validators increasingly compete for transaction throughput and fee optimization.

## Impact on Staking APY

### APY Projections

Estimated staking APY over time (assumes stable network stake):

<Tabs>
  <Tab title="Conservative">
    Low network activity, minimal fee revenue:

    | Year | Block Rewards | Fees | Total APY |
    | ---- | ------------- | ---- | --------- |
    | 2025 | 36.8%         | 0.5% | **37.3%** |
    | 2026 | 18.4%         | 1.0% | **19.4%** |
    | 2027 | 9.2%          | 1.5% | **10.7%** |
    | 2028 | 4.6%          | 2.0% | **6.6%**  |
    | 2029 | 2.3%          | 2.5% | **4.8%**  |
    | 2030 | 1.15%         | 3.0% | **4.15%** |

    Still competitive with traditional staking platforms.
  </Tab>

  <Tab title="Moderate">
    Medium network activity, growing fee market:

    | Year | Block Rewards | Fees  | Total APY  |
    | ---- | ------------- | ----- | ---------- |
    | 2025 | 36.8%         | 1.0%  | **37.8%**  |
    | 2026 | 18.4%         | 2.5%  | **20.9%**  |
    | 2027 | 9.2%          | 4.0%  | **13.2%**  |
    | 2028 | 4.6%          | 6.0%  | **10.6%**  |
    | 2029 | 2.3%          | 8.0%  | **10.3%**  |
    | 2030 | 1.15%         | 10.0% | **11.15%** |

    **Sustainable double-digit APY** through fee growth.
  </Tab>

  <Tab title="Optimistic">
    High network activity, vibrant DeFi ecosystem:

    | Year | Block Rewards | Fees  | Total APY  |
    | ---- | ------------- | ----- | ---------- |
    | 2025 | 36.8%         | 2.0%  | **38.8%**  |
    | 2026 | 18.4%         | 5.0%  | **23.4%**  |
    | 2027 | 9.2%          | 8.0%  | **17.2%**  |
    | 2028 | 4.6%          | 12.0% | **16.6%**  |
    | 2029 | 2.3%          | 15.0% | **17.3%**  |
    | 2030 | 1.15%         | 18.0% | **19.15%** |

    **APY remains high** as fee revenue offsets reward reduction.
  </Tab>
</Tabs>

## Smart Contract Implementation

### Halving Logic

The halving is implemented in the FenineSystem contract:

```solidity theme={null}
function getBlockReward(uint256 blockNumber) public pure returns (uint256) {
    uint256 HALVING_INTERVAL = 10_512_000;
    uint256 INITIAL_REWARD = 3.5 ether;
    
    // Calculate number of halvings
    uint256 halvings = blockNumber / HALVING_INTERVAL;
    
    // Max 10 halvings (after that, reward is negligible)
    if (halvings >= 10) {
        return 0;
    }
    
    // Calculate reward: initial_reward / (2^halvings)
    return INITIAL_REWARD >> halvings;  // Bit shift = divide by 2
}
```

### Query Current Reward

```javascript theme={null}
// Using ethers.js
const fenineSystem = new ethers.Contract(
  "0x0000000000000000000000000000000000001000",
  FENINE_SYSTEM_ABI,
  provider
);

// Get current block number
const blockNumber = await provider.getBlockNumber();

// Get current block reward
const reward = await fenineSystem.getBlockReward(blockNumber);

console.log("Current block:", blockNumber);
console.log("Block reward:", ethers.formatEther(reward), "FEN");

// Calculate halvings occurred
const halvings = Math.floor(blockNumber / 10512000);
console.log("Halvings:", halvings);
```

### Check Next Halving

```javascript theme={null}
const HALVING_INTERVAL = 10_512_000;

const currentBlock = await provider.getBlockNumber();
const currentHalving = Math.floor(currentBlock / HALVING_INTERVAL);
const nextHalvingBlock = (currentHalving + 1) * HALVING_INTERVAL;
const blocksUntilHalving = nextHalvingBlock - currentBlock;

// Convert to time (3 second blocks)
const secondsUntilHalving = blocksUntilHalving * 3;
const daysUntilHalving = secondsUntilHalving / 86400;

console.log("Next halving at block:", nextHalvingBlock);
console.log("Blocks remaining:", blocksUntilHalving);
console.log("Days until halving:", daysUntilHalving.toFixed(2));
```

## Comparison with Other Networks

| Network      | Halving Interval | Initial Reward | Current Reward | Total Supply Cap |
| ------------ | ---------------- | -------------- | -------------- | ---------------- |
| **Fenine**   | 1 year           | 3.5 FEN        | 3.5 FEN        | 100M             |
| Bitcoin      | 4 years          | 50 BTC         | 6.25 BTC       | 21M              |
| Litecoin     | 4 years          | 50 LTC         | 12.5 LTC       | 84M              |
| Bitcoin Cash | 4 years          | 50 BCH         | 6.25 BCH       | 21M              |
| Dash         | \~383 days       | 50 DASH        | \~2.7 DASH     | 18.9M            |

**Fenine's Approach**:

* **Faster halvings** (1 year vs 4 years) = quicker scarcity
* **Higher initial inflation** = network bootstrap and growth
* **Earlier deflation** = sustainable long-term tokenomics

## Strategic Implications

### For Validators

<CardGroup cols={2}>
  <Card title="Early Entry Advantage" icon="rocket">
    **2025-2027**: Highest block rewards

    * Maximize earnings in first 2-3 years
    * Build large stake early
    * Establish validator reputation
  </Card>

  <Card title="Fee Optimization" icon="chart-line">
    **2028+**: Fee-dominant revenue

    * Optimize MEV extraction
    * Run high-performance infrastructure
    * Attract DeFi projects
  </Card>

  <Card title="Commission Strategy" icon="percent">
    **Adjust over time**

    * Year 1-2: Low commission (growth phase)
    * Year 3-4: Moderate commission
    * Year 5+: Higher commission (fee sharing)
  </Card>

  <Card title="Diversification" icon="layer-group">
    **Multiple revenue streams**

    * Block rewards (decreasing)
    * Transaction fees (increasing)
    * MEV opportunities
    * Proximity rewards
  </Card>
</CardGroup>

### For Delegators

**Early Staking Benefits**:

* Lock in high APY (Year 1-2)
* Compound at maximum rates
* Build large stake before halvings

**Long-term Strategy**:

* Choose validators with fee optimization
* Redelegate to high-performance validators
* Monitor APY trends

### For Ecosystem

**DApp Developers**:

* Predictable supply schedule
* Increasing scarcity drives token value
* Fee market creates sustainable validator economics

**Investors**:

* Clear tokenomics roadmap
* Deflationary trajectory
* Bitcoin-like scarcity model

## Frequently Asked Questions

<AccordionGroup>
  <Accordion title="Will APY drop to zero after halvings?">
    **No.** Transaction fees replace block rewards as primary validator revenue.

    With moderate network activity, APY remains at **8-15%** even after 5 halvings (2030+).

    High-activity networks can sustain even higher APY from fees alone.
  </Accordion>

  <Accordion title="Should I stake now or wait?">
    **Stake now.** Early stakers benefit from:

    * Highest block rewards (3.5 FEN/block)
    * Compounding at maximum APY
    * Lower network competition
    * Earlier entry into proximity network

    Every year, rewards halve. Waiting means missing out.
  </Accordion>

  <Accordion title="What happens to validators after 10 halvings?">
    After 10 halvings, block rewards become negligible (\<0.01 FEN).

    Validators survive on:

    * **Transaction fees** (primary revenue)
    * **MEV** (if applicable)
    * **Commission** from delegators

    Similar to Bitcoin miners post-2140.
  </Accordion>

  <Accordion title="Can the halving schedule be changed?">
    **Theoretically yes**, but highly unlikely.

    Changing would require:

    * Network consensus (governance vote)
    * Hard fork upgrade
    * Community agreement

    Fenine's halving schedule is designed for long-term sustainability and unlikely to change.
  </Accordion>

  <Accordion title="How does halving affect FEN price?">
    **Historical pattern** (from Bitcoin, Litecoin):

    1. **Pre-halving rally** (3-6 months before)
    2. **Halving event** (price may spike or dip)
    3. **Post-halving accumulation** (6-12 months after)
    4. **Bull run** (12-18 months after)

    Reduced supply + constant/increasing demand = upward price pressure.

    **Note**: Past performance doesn't guarantee future results.
  </Accordion>
</AccordionGroup>

## Halving Countdown

Track the next halving:

**Live Dashboard**: [fene.app/halving](https://fene.app/halving)

Features:

* Real-time countdown
* Current block reward
* Historical halving data
* Supply curve visualization
* APY projections

## Related Resources

<CardGroup cols={2}>
  <Card title="Staking Overview" icon="coins" href="/staking/overview">
    Learn about staking mechanics
  </Card>

  <Card title="Economic Model" icon="chart-pie" href="/architecture/fpos">
    FPoS tokenomics deep dive
  </Card>

  <Card title="Run a Validator" icon="server" href="/staking/run-validator">
    Start earning block rewards
  </Card>

  <Card title="Block Explorer" icon="magnifying-glass" href="https://explorer.fene.app">
    View current block height
  </Card>
</CardGroup>

<Note>
  **Halving Support**:

  * Discord: [#economics](https://discord.gg/fenines)
  * Email: [tokenomics@fene.network](mailto:tokenomics@fene.network)
  * Research: [Research Portal](https://research.fene.app)

  Stay updated on halving events and economic analysis!
</Note>