Quantum Selection Service
A quantum computer picks your winner. You get the proof.
Coin flips, raffle draws, lottery-style picks. EigenSelect resolves them by a single measurement on a physical superconducting quantum processor, and documents the complete event in a designed, independently verifiable report.
What you receive
A physical quantum event
Your selection is resolved by one measurement of superconducting transmon qubits on an IQM Crystal‑54 processor, held at approximately 15 millikelvin. That is colder than interstellar space. One circuit, one shot, one collapse. There is no simulation fallback in the execution path. If physical hardware cannot be verified, the transaction halts and no charge is applied.
A document
A multi-page technical report covering the full evidentiary chain: the canonical outcome set, the cryptographic commitment, the physical execution log (every attempt, including the rejected measurements), and the resolved outcome. The report is designed to be filed. Page two is designed to be framed.
Independent verifiability
Before your circuit is submitted, a commitment digest is published as a DNS
TXT record in the eigenselect.eu zone, served by our own
authoritative nameservers, and as a signed event on public Nostr relays.
Anyone can check both, at any time, with one dig command.
Procedure
How a selection is resolved
- SubmitDescribe the selection: a coin flip, a range, a list of entries, or a structured draw. Files are accepted: plain text, CSV, Excel, JSON.
- ConfirmThe system states its understanding of your outcome set in plain language. You confirm it. From that point the outcome set is final for the transaction.
- CommitEvery parameter is fixed in a commitment manifest: outcome list, state mapping, circuit, backend, shot count. Its digest is published to DNS and Nostr before the processor is contacted.
- ExecuteThe committed circuit runs on the physical processor with exactly one shot. Out-of-domain measurements are an expected result of the rejection-sampling design; they are documented and re-executed at our expense.
- DeliverYou receive the report. A resolution record is published alongside the commitment, closing the verification loop.
The instrument
IQM Crystal‑54
Selections are executed on QPU‑EMERALD‑54PQ, a 54-qubit superconducting quantum processor (IQM Crystal‑54) operated in a dilution refrigerator at approximately 15 mK and accessed through Scaleway Quantum‑as‑a‑Service.
| Processor | IQM Crystal‑54, superconducting transmon, square lattice |
|---|---|
| Qubits | 54 |
| Native gate set | cz · r(θ,φ) · reset · measure · id |
| Shots per execution | 1 |
| Operating temperature | ≈ 15 mK |
There is no Hadamard gate on the hardware. Your uniform-superposition circuit is
decomposed into native r-gate pairs, R(π/2,π/2)·R(π,0) per
qubit, and it is the decomposed circuit that gets committed by hash before
execution. What runs is what was committed.
Lottery-style draws are resolved as sequential independent measurements, each with its own commitment, execution log, and verification records. A seven-number draw produces seven documented collapses.
Pricing
€50 per resolved selection, VAT included
Full quantum execution on physical hardware, the complete report, DNS and Nostr commitment records, and verification instructions. Rejection-domain retries are absorbed by EigenSelect and documented in full. Prices include VAT; card payment through Stripe, receipt with the VAT line.
€50 per resolved pick (multi-draw), VAT included
Structured draws are priced per resolved pick, not per physical circuit. A pick‑7 lottery draw is seven separately committed picks and one seven-section report. Rejected measurements are re-executed at our expense, so the hardware usually runs more than seven times.