Solo Bitcoin mining · on your own computer

Almost no one mines a block alone. Almost.

notzero quietly takes one lottery ticket on every Bitcoin block — mined start to finish on your own computer. The chance is staggeringly small. But if it ever hits, the entire block is yours. No pool. No middleman. No one in between.

Downloadfree Watch the live demo ↗

The Mac app is signed and notarized by Apple — your computer confirms it's genuine and untampered before it opens, with no "unknown developer" warnings. Whatever your system, only download from getnotzero.com. If another site offers it, it isn't us.

your odds, per ticket
1 in 100 sextillion
100,000,000,000,000,000,000,000 — a one with twenty-three zeros

Give or take. You're around a hundred billion times likelier to be struck by lightning this year — and yet, every ten minutes, somebody, somewhere, still finds a block.

Why it's safe to run

Your computer does the work. Nothing of yours leaves it.

YOUR KEYS

Your coins stay yours

The app never holds a wallet or a private key — only a receiving address that you choose for any winnings. There's nothing here to take.

REAL BITCOIN

The official software, verified

It runs Bitcoin Core — the same software the whole network runs — and checks its cryptographic signature before it ever starts.

GENTLE

One ticket every ten minutes

This isn't a noisy mining rig. It's a single lottery ticket per block. It barely touches your processor and runs quietly in the background.

REVERSIBLE

About 20 GB — gone in one click

It keeps a small private copy of Bitcoin to play honestly. Done? Remove all of it any time, from inside the app. No leftovers.

How it works

Three steps. No terminal, ever.

Download and open it

No setup files to hunt for, no accounts to make, no command line. Open it like any other app.

It builds your own Bitcoin node

Quietly, in the background, it sets up a private, pruned copy of Bitcoin for you. You never have to understand a single part of it.

It plays the lottery for you

One verified ticket on every block — about once every ten minutes — for as long as you leave it running. Until you win, or until you stop.

One honest note

The very first time, your node downloads and double-checks part of the Bitcoin blockchain. That takes a while and some internet — but you only do it once, and you can keep using your computer the entire time.

The odds won't change. Your chance to play just did.

Downloadfree
Support

A labour of love. Powered by sats.

notzero is free and open, and it'll stay that way. If it made you smile — or you just like that someone keeps the longest of long shots alive — toss a few sats in the jar. Thank you. ⚡

⚡ Lightning · instant
spiralocean@coinos.io
scan with any Lightning wallet
₿ On-chain · for larger tips
bc1q9xh66pje85h6ah723py768j4syq7kapeflunqn
Bitcoin (on-chain)