Some mining services imply their software can switch any machine to any coin. HashNet’s Alpha Engine does the opposite: it is deliberately confined to algorithm groups. That restriction is one of the most telling things about the system.
The physics of mining hardware
Every mineable coin uses a specific algorithm, and mining hardware is built for specific algorithms. A SHA-256 machine cannot mine an Equihash coin, no matter how attractive that coin becomes. “Automatic switching” can therefore only ever mean switching within an algorithm group.
HashNet’s four groups
| Group | Coins | Switching |
|---|---|---|
| SHA-256 | Bitcoin, Bitcoin Cash | Between two coins |
| Scrypt | Litecoin, Dogecoin | Between two coins |
| Equihash | Zcash | Single coin |
| kHeavyHash | Kaspa | Single coin |
Each group has its own dedicated hardware, and coins are only compared with others in the same group.
A design rule, not an afterthought
HashNet’s founder, Ian Issa, made this one of four rules for the Alpha Engine: only switch where switching makes sense. In his view, respecting the physics of the hardware is what keeps the system realistic and reliable.
What it means for speed and reliability
Keeping each decision inside its group is what makes the automatic switching both fast and reliable. The engine is never evaluating impossible options. It compares a small number of coins that the machines can actually mine, and moves in about 12 milliseconds (company-reported) when a better option appears.
A useful test for buyers
The algorithm limit doubles as a test for any mining provider. If a service claims it can move any machine to any coin, it is describing something mining hardware cannot do. HashNet’s willingness to state the limit plainly is a sign that its claims are grounded in how the hardware works.
Summary
The Alpha Engine’s refusal to cross algorithms is not a weakness. It is the reason its switching is fast, realistic and dependable.
