> For the complete documentation index, see [llms.txt](https://docs.qubixquantum.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.qubixquantum.com/proof.md).

# Proof

#### Two Codes

Your receipt shows two versions of the code side by side: the clean version the AI wrote, and the version that actually ran on the hardware. Showing both is the honesty. A project hiding something could show nice code and run something else. Qubix leaves nothing in the middle unexplained.

#### The Histogram

The result comes back as a histogram, a simple chart of how often each outcome happened. Flip a coin a few thousand times and you'll see two roughly equal bars.

Here's the surprising part: the chart is never perfectly even, and that's exactly what you want. A fake quantum computer produces flawless results. A real one has a tiny bit of natural noise, so you might see 51% to 49% with a few blips. That imperfection is the fingerprint of real hardware, and it can't be faked. The noise is the proof.

#### Run Details

Every receipt pins the run down to a specific moment on a specific machine, something a simulator can't fake:

* **The basics** — a unique job ID, the time, the number of runs, the machine, and its qubit count
* **The timing** — how long it waited in the queue and how long it took
* **Live calibration** — the chip's actual health readings at that moment, like how long its qubits held their state and their tiny error rates

This last part is the strongest proof. These numbers come straight from IBM's hardware and change run to run. A simulator has nothing like it.


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