Hashrate without context cannot predict profit

Device hashrate

Use a stable average after warm-up, not a short peak. Track accepted and rejected work because nominal work rejected by a pool does not produce the same payout.

Metric prefixes do not make algorithms comparable. Different algorithms perform different computation and memory access.

Network hashrate and participant share

In a simplified model, participant share is close to device hashrate divided by total network hashrate. If the network grows while the device stays unchanged, the participant represents a smaller share.

What difficulty changes

Difficulty controls how rare a valid result is. Many networks adjust it to target a block interval as total work changes, but the formula and adjustment window are protocol-specific.

Higher difficulty generally reduces expected results per unit of unchanged hashrate, all else equal. Price, reward and uptime can change at the same time.

Pool luck and observation windows

Proof of Work is probabilistic. Short periods can deviate from the average even at constant hashrate. Pools reduce participant variance but do not remove block-finding randomness.

Connect hashrate to economics carefully

1. Confirm the algorithm and stable accepted hashrate.
2. Record revenue and network conditions for the same time.
3. Measure whole-system power and uptime.
4. Subtract electricity, fees and maintenance.
5. Repeat under higher difficulty and lower revenue.