What is P2Pool mini versus P2Pool nano?

P2Pool mini and P2Pool nano are separate groups within Monero’s decentralized mining pool system, designed to give smaller miners a better chance of earning shares. Nano targets lower-powered miners than mini, but it is not automatically more profitable: you trade easier shares for potentially longer gaps between Monero payouts.

What mini and nano actually are

P2Pool lets you mine alongside other people without putting a central pool operator in charge of your rewards. Monero payouts go directly to your wallet when the pool finds a qualifying block.

Mini and nano use separate sidechains. A sidechain is an extra record of miners’ contributions, running alongside Monero’s main blockchain.

They mine the same Monero, using the same RandomX mining algorithm. Nano is not a different coin, a lighter version of Monero, or a way to skip the normal computing work.

The important difference is the size of the mining group and how hard it is to record a contribution.

Shares are easier; payouts can be less frequent

A share is proof that your computer has done mining work. P2Pool’s share difficulty—the amount of work needed to produce an accepted sidechain share—adjusts with the computing power on that sidechain.

Nano is intended for very small miners. With less combined computing power, its shares are generally easier to find than mini’s.

That creates a trade-off:

• On mini: You may wait longer to find your own share, but the group may find Monero blocks more often.
• On nano: You may find shares more regularly, but the group may take longer to find a Monero block.

These are not permanent guarantees. Participation changes, so check the live conditions on both sidechains rather than assuming their names tell you everything.

A share does not guarantee a payment

P2Pool uses PPLNS, short for “pay per last N shares.” In everyday terms, a share keeps you eligible for rewards for a limited window.

If your sidechain finds a Monero block while your share is in that window, you receive your portion. If no block arrives before your share leaves the window, that share earns nothing.

This is why nano can feel more active without paying more often. Seeing more accepted shares is encouraging, but it does not necessarily mean higher earnings.

Over enough time, comparable setups should have broadly similar expected rewards for the same computing power. The major difference is variance: how unevenly those rewards arrive.

Which should you choose?

Start with your hashrate, the number of mining calculations your device performs each second. Compare it with each sidechain’s current share difficulty and estimated time to find a share.

Nano may suit you if mini gives you extremely long waits between shares. Mini may suit you if you already find shares reasonably often and prefer a group that finds blocks more frequently.

For browser mining, first check whether your service actually supports either sidechain. A browser page’s displayed “shares” may be service-level accounting, not P2Pool sidechain shares. You cannot assume you are using nano simply because your device is slow.

The bottom line

Choose nano for more accessible shares at very low hashrates; consider mini when your hashrate supports more regular participation there. Neither creates extra profit from the same hardware, and neither guarantees daily payouts. Compare live sidechain statistics and electricity costs before choosing.