# Pearl (PRL) — Solo Mining Pools & Network State

Live solo mining pool comparison, network difficulty, block reward structure, and Poisson solo mining probabilities for Pearl, as measured by BackPow.

## Network Overview

| Metric | Value | Unit |
| --- | --- | --- |
| Algorithm | Pearl | |
| Network hashrate | 7.347280118450528e+19 | H/s |
| Difficulty | 40665318.751001805 | |
| Difficulty, 24h average | 40252593.951 | |
| Difficulty, 7d average | 37552629.631 | |
| Block time, observed | 166.768 | seconds |
| Block reward | 2236.86 | PRL |
| Spot price | 2.17 | USD |
| Block value | 4853.9862 | USD |
| Tracked solo pools | 14 | count |
| Recommended solo pool | herominers.com (0%) | |

## Tracked Solo Pools

| Pool | Solo Fee (%) | Avg Hashrate 7d (raw) | Avg Hashrate 7d | Reliability | Pool URL |
| --- | --- | --- | --- | --- | --- |
| herominers.com | 0 | 3075515758505953000 | 3.08 EH/s | OK | https://pearl.herominers.com |
| pool.kryptex.com | 1 | 31345973514285736000 | 31.35 EH/s | OK | https://pool.kryptex.com/prl |
| grandpool.io | 0.01 | 9252931055809522 | 9.25 PH/s | Low hashrate | https://grandpool.io/pools/pearl |
| prlforge.com | 0.9 | null | — | Low hashrate | https://prlforge.com |
| woolypooly.com | 0.9 | null | — | Low hashrate | https://woolypooly.com |
| alphapool.tech | 1 | 65019657738095256 | 65.02 PH/s | Low hashrate | https://pearl.alphapool.tech |
| k1pool.com | 1 | 4530766802083334 | 4.53 PH/s | Low hashrate | https://k1pool.com/pool/pearlsolo |
| fenixpool.com | 1 | 472087541687882.7 | 472.09 TH/s | Low hashrate | https://fenixpool.com/pools/mps-prlsolo |
| pullsignal.co | 1 | null | — | Low hashrate | https://pearl.pullsignal.co |
| nushypool.com | 1 | null | — | Low hashrate | https://nushypool.com/prl_solo/pool |
| 1miner.net | 1 | null | — | Low hashrate | https://1miner.net/#prl-solo1 |
| aethelblock.com | 1 | null | — | Low hashrate | https://www.aethelblock.com/pearl |
| 2miners.com | 1.5 | 10542026020202378 | 10.54 PH/s | Low hashrate | https://solo-prl.2miners.com |
| himpool.com | 2 | 2333651388976191 | 2.33 PH/s | Low hashrate | https://himpool.com |

## Expected Time to Solo Mine a Block (Poisson Model)

Block discovery is modeled as a memoryless Poisson process: `P(X >= 1) = 1 - exp(-t / T)` where `T = (Network Hashrate / Miner Hashrate) * Block Time`.

| Hardware / Scenario | Hashrate (raw H/s) | Hashrate (display) | Expected Time | 30-Day Probability |
| --- | --- | --- | --- | --- |
| 1× GeForce RTX 5080 | 194980500000000.0 | 194.98 TH/s | 2.0 years | 4.0% |
| 10× GeForce RTX 5080 | 1949805000000000.0 | 1.95 PH/s | 72.7 days | 33.8% |
| 100× GeForce RTX 5080 | 1.949805e+16 | 19.50 PH/s | 7.3 days | 98.4% |

## Solo Mining Protocol Rules

- Direct Coinbase Payout: When a solo miner finds a block, the pool constructs the block template with the miner's payout address directly in the coinbase transaction.
- Con Kolivas' Solo CKPool: Regarded as the historical benchmark for Bitcoin solo mining. Its pure C daemon processes shares with zero database overhead and pays miners directly through coinbase transaction outputs.
- Maturation: Newly minted coins require confirmation maturity (typically 100 blocks on Bitcoin and most PoW networks) before they can be transferred or spent.
- Pool Fee Structure: Unlike PPS/PPLNS pools that deduct fees from shared round rewards, solo pools deduct their percentage fee exclusively upon block discovery.
- High Variance: Finding blocks solo is subject to Poisson variance; expected time is a mathematical expectation over many trials, not a countdown timer.

## Provenance

- Retrieved: 2026-10-21T18:57:14Z
- Canonical page: https://backpow.com/solo-pools/Pearl
- Coin economics & CoP datasheet: https://backpow.com/Pearl.md
- All solo pools directory: https://backpow.com/solo-pools.md
- Solo mining odds calculator: https://backpow.com/Pearl
- Live queries over MCP: https://mcp.backpow.com/mcp (tools `calculate_solo_mining_odds`, `get_coin_oracle`)
- Licence: CC BY 4.0 — https://backpow.com/llms.txt

Difficulty, hashrate and price move continuously. This file is a snapshot taken at the time above; for a current reading, query the MCP endpoint rather than caching this document.