# Solo Mining Bitaxe NerdQaxe++ Rev 6.1 on Fractal (FB)

Machine-readable solo mining datasheet for running **Bitaxe NerdQaxe++ Rev 6.1** on the **Fractal (FB)** SHA-256 network. Evaluates hashrate output, electrical operational expenditure, Poisson block-finding probabilities, and mining economics tracked by BackPoW.

## Executive Summary

- Target Rig: Bitaxe NerdQaxe++ Rev 6.1 (ASIC)
- Target Network: Fractal (FB) — Algorithm: SHA-256
- Rig Hashrate: 6.00 TH/s (6.002400e+12 H/s)
- Power Consumption: 100 W (2.40 kWh/day)
- Energy Efficiency: 16.66 J/TH
- Network Hashrate: 153.88 PH/s (1.538831e+17 H/s)
- Network Hash Share: 3.900623e-05 (0.003901%)
- Expected Block Discovery: about 29.3 blocks per year (mean time: ~12.5 days)
- Operational Breakeven Electricity: 0.0816 USD/kWh

## Solo Mining Metrics Table

| Metric | Value | Unit | Description |
| --- | --- | --- | --- |
| Mining Device | Bitaxe NerdQaxe++ Rev 6.1 | text | Hardware model name |
| Device Class | ASIC | text | ASIC, GPU, or CPU architecture |
| Device Hashrate | 6.00 TH/s | H/s | Nominal hashrate on SHA-256 |
| Device Power Draw | 100 | Watts | Power consumption at wall |
| Energy Efficiency | 16.66 J/TH | unit | Energy per unit hash computation |
| Network Hashrate | 153.88 PH/s | H/s | Total active network hash power |
| Network Difficulty | 2,081M | number | Current consensus target difficulty |
| Block Time (Observed) | 42.0 | seconds | Average interval between blocks |
| Block Reward | 6.2500 | FB | Full coinbase block reward + fees |
| Coin Spot Price | 0.3904 | USD | Current market exchange rate |
| Single Block Value | 2.44 | USD | Gross fiat value of one block |
| Mean Time to Block | 12.5 days | time | T = (Nethash / Hashrate) * BlockTime |
| Daily Block Probability | 7.71% | percent | 24-hour Poisson chance |
| Monthly Block Probability | 90.99% | percent | 30-day Poisson chance |
| 1-Year Block Probability | 99.99% | percent | 365-day Poisson chance |
| 3-Year Block Probability | 99.99% | percent | 3-year cumulative chance |
| Expected Blocks / Year | 29.3082 | count | Average over 365.25 days |
| Daily Gross Output | 0.501509 | FB | Expected daily coin yield |
| Daily Gross Value | 0.20 | USD | Revenue before power costs |
| Daily Energy Consumed | 2.40 | kWh/day | Kilowatt-hours consumed |
| Power Cost @ 0.05 USD/kWh | 0.12 | USD/day | Low industrial tariff |
| Power Cost @ 0.08 USD/kWh | 0.19 | USD/day | Standard mining tariff |
| Power Cost @ 0.10 USD/kWh | 0.24 | USD/day | Residential tariff |
| Breakeven Electricity | 0.0816 | USD/kWh | Max rate before loss |
| Hardware Price | 276 / 277 / 282 USD | USD | Market range (min / med / max) |

## Poisson Block Discovery Model & Variance

Solo mining block discovery follows a memoryless Poisson process where every hash attempt has an identical, independent success probability.

- Formula: `P(X >= 1) = 1 - exp(-t / T)`
- `t` is mining duration in seconds
- `T` is mean time between blocks: `T = (Network Hashrate / Miner Hashrate) * Block Time`

Luck percentile table (reference electricity rate 0.08 USD/kWh):

| Luck Scenario | Percentile | Duration | Power (kWh) | Cost @ 0.08 |
| --- | --- | --- | --- | --- |
| 10% Lucky Hit | 10th | 31.5 hours | 3.2 | 0.25 USD |
| 50% Median | 50th | 8.6 days | 20.7 | 1.66 USD |
| 90% Bad Luck | 90th | 28.7 days | 68.9 | 5.51 USD |
| 95% Extreme Drought | 95th | 37.3 days | 89.6 | 7.17 USD |

## Hardware Benchmark Profile

- Device: Bitaxe NerdQaxe++ Rev 6.1
- Slug: bitaxe-nerdqaxe-rev-6-1
- Architecture: ASIC
- Algorithm: SHA-256
- Hashrate: 6.00 TH/s
- Power: 100 W
- Efficiency: 16.66 J/TH
- Market Cost: 276 / 277 / 282 USD

## Blockchain Network Overview

- Blockchain: Fractal (FB)
- Consensus: SHA-256
- Network Hashrate: 153.88 PH/s (1.538831e+17 H/s)
- Difficulty: 2,081M
- Block Time: 42.0 seconds
- Block Reward: 6.2500 FB (approx 2.44 USD)
- Spot Price: 0.3904 USD
- Cost of Production (Flagship): 0.26 USD (Bitmain Antminer S23 XP Hyd)

## Tracked Solo Mining Pools

Solo pools for Fractal (FB) routing 100% of block rewards to the miner address:

| Pool Name | Fee | Link | Low Hashrate |
| --- | --- | --- | --- |
| jackpool.ru | 0.5% | [jackpool.ru](https://jackpool.ru/#fb_sha256) | No |
| pool.kryptex.com | 1.5% | [pool.kryptex.com](https://pool.kryptex.com/fb) | No |
| hashpoolpro.com | 2% | [hashpoolpro.com](https://hashpoolpro.com) | No |
| solopool.org | 2% | [solopool.org](https://fb.solopool.org) | No |
| molepool.com | 2% | [molepool.com](https://fb.molepool.com) | No |
| mining-dutch.nl | 1% | [mining-dutch.nl](https://www.mining-dutch.nl/pools/fractalbitcoin.php) | Yes |
| kardanpool.com | 1.5% | [kardanpool.com](https://kardanpool.com/fb) | Yes |
| public-pool-btc.ru | 1.5% | [public-pool-btc.ru](https://public-pool-btc.ru) | Yes |
| himpool.com | 2% | [himpool.com](https://himpool.com/pools/fb-solo) | Yes |
| solopool.site | 2% | [solopool.site](https://solopool.site) | Yes |

## Machine-Readable JSON Summary

```json
{
  "coin_id": "Fractal",
  "coin_name": "Fractal",
  "ticker": "FB",
  "algorithm": "SHA-256",
  "hardware_name": "Bitaxe NerdQaxe++ Rev 6.1",
  "hardware_slug": "bitaxe-nerdqaxe-rev-6-1",
  "hardware_type": "ASIC",
  "miner_hashrate_h_s": 6002400000000.0,
  "power_watts": 100.0,
  "efficiency": "16.66 J/TH",
  "network_hashrate_h_s": 1.5388309992234195e+17,
  "difficulty": "2,081M",
  "block_time_seconds": 42.0,
  "block_reward_coins": 6.25,
  "spot_price_usd": 0.390364,
  "single_block_value_usd": 2.439775,
  "mean_time_to_block_seconds": 1076750.999056771,
  "daily_block_probability": 0.07710646047722258,
  "monthly_block_probability": 0.9099366338279968,
  "yearly_block_probability": 0.999999999999813,
  "expected_blocks_per_year": 29.30816876663622,
  "daily_gross_usd": 0.19577094442880186,
  "daily_kwh": 2.4000000000000004,
  "breakeven_electricity_usd_per_kwh": 0.08157122684533409,
  "hardware_price_usd": {
    "min": 276.0,
    "median": 277.0,
    "max": 282.0
  },
  "retrieved_utc": "2026-10-07T20:25:28Z"
}
```

## Provenance & Integration Links

- Retrieved: 2026-10-07T20:25:28Z
- Canonical HTML page: https://backpow.com/Fractal/bitaxe-nerdqaxe-rev-6-1
- Coin datasheet: https://backpow.com/Fractal.md
- Hardware datasheet: https://backpow.com/hardware/bitaxe-nerdqaxe-rev-6-1.md
- Solo pools directory: https://backpow.com/solo-pools.md
- Live queries over MCP: https://mcp.backpow.com/mcp (tools `calculate_solo_mining_odds`, `get_hardware_benchmarks`)
- Licence: CC BY 4.0 — https://backpow.com/llms.txt