evidence class: measured
Every figure published on this site comes from the run below. It was taken against production, at full traffic, by a client outside the deployment. The raw record is downloadable and the boundary is stated with it.
https://catalyst-q.strategic-innovations.ai/v3turbo/execute/qasm5a0d43a69f5ef5109d71538c10ef7d3576ee2195ed64918e-96af-4e8c-9a49-abad89e5e32e| Workload | Declared width | Baseline | Observed | Timing |
|---|---|---|---|---|
| Million-width T streamOne million declared qubits, one million gates, one exact observable. | 1,000,000 | analytic Z = 1 | Z = 1, exact | 3,166 ms end to end, including a 12 MB streamed request body |
| Non-local inverse circuitA circuit and its inverse over separated addresses in a million-wide register. | 1,000,000 | analytic inverse-circuit identity = 1 | three-address Z product = 1, exact | 2,056 ms end to end |
| Rotation latency sweepTen sequential analytic rotations, every one exact to 1e-12. | — | analytic Z after RX(pi/3) = 0.5 | 10 of 10 exact | p50 87 ms, p95 100 ms |
| Pause and resumeA paused run resumed from its returned continuation alone, still exact. | — | analytic resumed Z = 1 | HTTP 202 then 200, Z = 1, exact | 419 ms end to end |
| Agent / IDE end to endThe same million-width run driven by an agent over MCP, not by a browser. | 1,000,000 | analytic = 1 | actual = 1, exact | stdio MCP to streamed production HTTP |
Every figure in this table comes from record cq-prod-2026-08-22-ed64918e — the deployment identified in the claim card above. Timings are end-to-end client measurements from the stated verifier and environment; they are not a signed third-party certificate, and they do not generalise beyond the named observables.
record two · observable side
On 2026-08-27 this page said condensed-matter dynamics, QEC and random-circuit sampling were out of class. On 2026-09-01 they were measured again on the observable side, oracle by oracle, and the boundary moved to where the table below puts it — including the one wall that did not move.
cq-front-2026-09-01| Workload | Claim | Oracle | Observed | Timing |
|---|---|---|---|---|
| TFIM quench, 100 sitesCondensed matter | Mean magnetisation and bond correlator after 20 Trotter steps (J=h=1, T=1), certified. | MPS oracle, agreement 4.1e-7 (the oracle's own floor) | 1.21M-word bundle, certificate 2.3e-6; bundle grows linearly in width (≈12k words per site) | 508 s single-core Python, an upper bound for the production port |
| Same run, 16 sites: state side vs observable sideCondensed matter | A cluster-materialising state register caps at rank 14 on this machine and stalls silently. | dense state vector | state side 5.9e-2 off while reporting converged; observable side 3.0e-10 off | 14 s |
| TFIM hard quench, 200 sites, fermionic chartCondensed matter | Order parameter after a T=4 quench (16 steps of dt=0.25) — the case where the Pauli bundle blows up — exact via a Pfaffian readout. | dense state vector at n ≤ 14: max deviation 3e-14 | exact, no certificate needed; the same quench at 12 sites cost 6.9M words on the Pauli side | 7.7 s at 200 sites, 0.57 s at 100 |
| Depth-4 brickwork, width 12 to 1,000Random circuits | Mid-chain ⟨Z⟩ on √iSWAP brickwork with random single-qubit layers; the cost is the light cone, not the width. | dense at n=12: 3.3e-16 | 16k–30k words and 8 support qubits at every width | 0.06–0.5 s |
| The wall, statedRandom circuits | Exact through depth 5 at 50 qubits (684k words). At depth 6 the bundle passes 6M words and the certificate stops certifying. At depth 14 on 8 qubits the observable fills all 65,535 words. | dense at n=8, depth 14: 5.2e-16 (exact, because all words were kept) | this is the #P wall on the readout side; it is reported, not hidden | 1.6 s at depth 5 |
| Surface-code thresholds, d=3 to 9QEC | Pauli-frame simulation with minimum-weight matching under code-capacity depolarising noise. | dense code state at d=3: 0 mismatches in 300 random fault patterns | p=0.04 → logical 0.019 / 0.0073 / 0.0023 / 0.0017 at d=3/5/7/9; curves cross near p≈0.14 | 0.04–4.3 ms per shot, 81 qubits |
| Coherent errors, exact logical channelQEC | rz(ε) on every data qubit; the syndrome-resolved logical Kraus operators come from one Walsh transform over the stabiliser group. | dense projection at d=3: every (α, β) pair to 2.2e-16 | coherent errors are 2.7× (d=3) to 4.2× (d=5) worse than their Pauli twirl at ε=0.1 | d=5: 8,192-term transform, milliseconds; d=7: 33M terms, offline |
| Zero-coordination foldDistribution | One observable split into 64 shards, each transported independently, merged by addition. | the serial run | ⟨Z⟩ within 8.6e-10 of serial (truncation-order effects only) | 16 sites, 20 Trotter steps |
Timings are single-core Python from the workbench that produced the record and are upper bounds for the production route, which is a port tested against fixtures generated by these runs. Where a row names an oracle, the deviation quoted is against that oracle; where it says exact, every term was kept.
scope
Stating the boundary next to the result is the point. In a field where every benchmark is self-reported, the vendor that publishes its own limits is the one worth checking.
The baselines are analytic. You do not have to take our word for any row above — the returned value either equals the analytic result or it does not.
Reproduction steps