# Grin-CT32 (GRIN) — Solo Mining Pools & Network State

Live solo mining pool comparison, network difficulty, block reward structure, and Poisson solo mining probabilities for Grin-CT32, as measured by BackPow.

## Network Overview

| Metric | Value | Unit |
| --- | --- | --- |
| Algorithm | Cuckatoo32 | |
| Network hashrate | 3828.8510095139864 | H/s |
| Difficulty | 228089.69312601842 | |
| Difficulty, 24h average | 242998.0 | |
| Difficulty, 7d average | 250717.0 | |
| Block time, observed | 60.292 | seconds |
| Block reward | 60.0 | GRIN |
| Spot price | 0.01343701 | USD |
| Block value | 0.8062206 | USD |
| Market cap | 3240396.0 | USD |
| Tracked solo pools | 3 | count |
| Recommended solo pool | solo.easygrin.org (1%) | |

## Tracked Solo Pools

| Pool | Solo Fee (%) | Avg Hashrate 7d (raw) | Avg Hashrate 7d | Reliability | Pool URL |
| --- | --- | --- | --- | --- | --- |
| solo.easygrin.org | 1 | 417.685185185185 | 417.69 H/s | OK | https://solo.easygrin.org |
| 2miners.com | 1.5 | 874.1666666666666 | 874.17 H/s | OK | https://solo-grin.2miners.com |
| solo.grin.money | 0 | 0.9814814814814847 | 0.98 H/s | Low hashrate | https://solo.grin.money |

## 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× iPollo G1 | 36.0 | 36.00 H/s | 1.8 hours | 100.0% |
| 10× iPollo G1 | 360.0 | 360.00 H/s | 11 min | 100.0% |
| 100× iPollo G1 | 3600.0 | 3.60 KH/s | ~1 min | 100.0% |

## 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: 2026-10-07T20:25:28Z
- Canonical page: https://backpow.com/solo-pools/Grin-CT32
- Coin economics & CoP datasheet: https://backpow.com/Grin-CT32.md
- All solo pools directory: https://backpow.com/solo-pools.md
- Solo mining odds calculator: https://backpow.com/Grin-CT32
- 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.