METHODOLOGY  /  VERSIONED REFERENCE

How the Audit decides what is feasible.

The Audit is a deterministic chassis. Same inputs in, same verdict out. This page is the versioned reference: the four assumption tiers, the four verdicts, the chassis route families, the citation policy, the reproducibility protocol, and the right-of-reply protocol.

VERSION
v1.0
LAST VERIFIED
2026-05-05
SCHEMA
v0.2.0 (JSON Schema, runner)
FIELD RULES
FR-01 to FR-12 (publish blockers)
II  /  FOUR ASSUMPTION TIERS

Every verdict is computed against a named tier.

A verdict without a named tier is unfalsifiable. The Audit pins each route to a single tier and captures verdict sensitivity to each named assumption inside that tier.

A

Tier A, Benevolent lower bound

Noise-free hardware. One cycle per oracle call. Lower-bound condition estimates. Favorable precision. The first cost driver is the cycle count derived from the QLSA-based Newton solve at minimal iterations. If the candidate cannot beat its strongest classical baseline at this tier, no further analysis closes the gap.

NAMED COST DRIVERS

cycle count, oracle calls, precision floor, condition estimate

B

Tier B, Plausible hardware scenario

A named hardware family with cited gate speed. Fault tolerance excluded. Energy modeling required. Quantum-error-correction overhead modeled. Cycle-time-to-runtime conversion is the dominant cost driver here. A Tier B Manifest without modeled energy budget fails FR-01 at the runner.

NAMED COST DRIVERS

gate speed, cycle time, QEC overhead, energy budget, classical post-processing

B-NISQ-only

Tier B (NISQ-only), Plausible hardware scenario without QEC

A named NISQ hardware family with cited gate speed. Fault tolerance excluded. QEC overhead not modeled. Explicit scope limit is required. A Tier B Manifest that ships without QEC modeling and without the relabeling fails FR-01.

NAMED COST DRIVERS

gate speed, calibration cost, shot budget, classical post-processing, named scope limit

C

Tier C, Fault-tolerant scenario

Logical qubits, error correction modeled, magic-state distillation modeled, energy modeling included. The dominant cost drivers are logical-qubit count, code distance, and T-gate budget. A Tier C verdict is a long-horizon engineering bet against named thresholds.

NAMED COST DRIVERS

logical qubits, code distance, T-gate count, distillation cost, logical clock rate

D

Tier D, Customer target scenario

A free-text bet by the customer about a specific assumption (a hardware threshold, a precision relaxation, an output-requirement change). The chassis derives the threshold at which the bet would change the verdict. The bet is captured verbatim in the Manifest with the test that would settle it.

NAMED COST DRIVERS

customer-stated assumption, named threshold, sensitivity test

III  /  VERDICT LOGIC

Four verdicts. Order on every artefact: REDIRECT and MONITOR before NO-GO and GO.

REDIRECT

A different formulation, output requirement, or baseline configuration could survive. The chassis names the redirect path. Most live workloads land here.

MONITOR

A specific named threshold (logical cycle time below X, condition number below Y, code distance D) would change the answer. The threshold is captured in verdict_sensitivity per route.

NO-GO

No reformulation closes the gap, no named threshold opens a future window. The verdict is bounded by the workload, the baselines, and the assumption envelope.

GO

Output extraction is not obviously fatal. A hardware path is named. The recommended next step is bounded, not a multi-quarter program. GO is provisional pending the assumption envelope.

RULE  /  FR-04

NO-GO requires reformulation.

The verbatim rule, enforced by the runner against every Manifest:

A NO-GO that did not first ask "is there a different formulation that survives" does not leave the chassis. The reformulation log is the audit trail of that question. Any Manifest with a NO-GO verdict carries at least one entry in reformulation_log.
CLAUSE  /  FR-08

Forbidden generalization clause.

The verbatim clause, enforced by the runner via a const constraint on every Manifest:

Verdicts are bounded by this workload, these baselines, and the stated assumption envelope. They do not generalize to all quantum candidates for this problem class.
IV  /  CHASSIS ROUTES

Each route family is informed by published research and cited per Manifest by citation_key.

ROUTE FAMILY

AE-finance

Amplitude estimation against Monte Carlo for risk pricing, derivatives valuation, and portfolio expectations. The candidate runs at scalar output, 1e-2 to 1e-3 precision, against at least two classical Monte Carlo baselines.

CITATION KEYS
  • stamatopoulos_2020_option_pricing
  • chakrabarti_2021_threshold_advantage
  • stamatopoulos_zeng_2024_qsp
ROUTE FAMILY

LP/QIPM

Hybrid quantum interior point methods against the strongest classical solver (HiGHS plus an optional commercial alternative). The Newton-system condition number is the dominant cost driver in the lower-bound calculation.

CITATION KEYS
  • binkowski_2026_lp_qipm
  • abbas_marecek_2024_natrev_optim
ROUTE FAMILY

No-go-screen

Variational and QML candidates that the chassis treats as a no-go-screen by default. The screen runs the candidate as a REDIRECT against the strongest classical baseline before any speedup claim is recorded.

CITATION KEYS
  • tang_2018_dequantization
  • liu_arunachalam_temme_2021
  • larocca_2025_bp_review
  • cerezo_2025_dequantization
  • qoblib_decathlon_2025
ROUTE FAMILY

Simulation / chemistry

Quantum simulation and electronic structure against high-quality classical tensor networks (DMRG, coupled cluster, AFQMC). Verdicts gate on logical qubit count, active-space size, and basis-set choice.

CITATION KEYS
  • daley_2022_nature_simulation
  • lee_babbush_2021_thc

Each citation_key dereferences to an entry in the Manifest's citations.primary_methodology[*] array. Every route in the chassis points to a citation key via applies_to_routes. The full reference list appears in section V.

V  /  CITATION POLICY

Every cited methodology, every role, in every Manifest.

The chassis citation backbone is embedded in every Manifest as citations.primary_methodology[*]. Each entry carries a citation_key, a full citation, the role it plays in the chassis, and the licence posture of the source paper or its associated code.

binkowski_2026_lp_qipm
LP/QIPM lower bound
chakrabarti_2021_threshold_advantage
AE threshold framing in finance
stamatopoulos_2020_option_pricing
AE canonical methodology
stamatopoulos_zeng_2024_qsp
QSP-based AE resource estimates
tang_2018_dequantization
Dequantization line for QML
liu_arunachalam_temme_2021
Rigorous quantum advantage in supervised ML
larocca_2025_bp_review
Barren plateaus across VQA families
cerezo_2025_dequantization
Absence of barren plateaus and classical simulability
abbas_marecek_2024_natrev_optim
Quantum optimization regime review
qoblib_decathlon_2025
Quantum optimization benchmark library
daley_2022_nature_simulation
Practical advantage in quantum simulation
lee_babbush_2021_thc
Tensor hypercontraction for fault-tolerant chemistry
INDEPENDENCE STATEMENT

Every Manifest carries the verbatim independence statement. The schema enforces verbatim text via a const constraint; deviation by a single character fails validation before the field rules even run.

Informed by published lower-bound analysis of hybrid quantum interior point methods. DeployQuantum did not author that research.
LICENCE POSTURE

Each citation entry records whether the source paper or its associated code is reusable. The Manifest schema is open-sourced under CC BY 4.0. The public-benchmark runner is open-sourced under MIT.

The Audit's pipeline is reimplemented independently in DQ-owned code; no third-party code is copied into the chassis.

VI  /  REPRODUCIBILITY PROTOCOL

A re-run of the Audit on the same inputs reproduces the hash exactly.

CANONICAL HASH

SHA-256 over a canonical JSON serialization.

Strip the top-level hash field. Recursively sort keys at every depth. Use a JSON serializer with no insignificant whitespace. Preserve Unicode. Produce a single-line UTF-8 string with no trailing newline. Compute SHA-256 over the result.

The hash is what the board signs on. Any field that should commit to the audit goes inside the hashed body; audit-trail metadata that changes post-signing is held outside the manifest in sibling files.

RUNNER VERSION

Every Manifest names the runner version that produced it.

The Manifest carries a runner_version field. Reproducing a Manifest requires the same runner version (or a newer version that maintains canonicalization invariants), the same canonical-hash policy, and the same instance-set hash.

The runner is open-source; any third party can validate a Manifest against the schema and against the twelve field-level publish blockers.

INSTANCE-SET HASH

The workload pins to a hash over the instance set.

The Manifest's workload.instance_set_hash field commits to the exact instances run. Different instance sets produce different Manifests; identical instance sets reproduce the runtime distribution within the runner's stated tolerances.

CONFIDENTIAL TIER

A named external reviewer is required.

A Manifest at audit_tier: "Confidential" requires a populated external_reviewer with role and reviewer confirmation captured before any public reference. FR-11 blocks any Confidential Manifest without an external reviewer.

VII  /  RIGHT-OF-REPLY PROTOCOL

Any vendor or candidate-author named in a public Manifest gets a structured right of reply.

01 PRE-PUBLICATION NOTICE

Before a public Manifest names a vendor or a candidate-author, the chassis sends a pre-publication notice with the verdict, the reasoning, and the assumption envelope. The notice carries the canonical hash of the candidate Manifest as it stands at the time of notice.

02 RESPONSE WINDOW

A defined response window applies. The vendor or candidate-author may submit a written response (correction, dispute, new evidence) inside the window. The response is recorded in the Manifest's vendor_response field and is published alongside the verdict.

03 RIGHT OF CORRECTION

If the response identifies a factual error in the inputs, the assumption envelope, or the baseline configuration, the chassis re-runs the affected route. The corrected Manifest carries a new hash; the prior Manifest is preserved in the change log with the rationale for the correction.

04 VERSIONED CHANGE LOG

Every public Manifest carries a versioned change log. Corrections, reformulation passes, and updates to the assumption envelope each appear as a versioned entry with the previous hash, the new hash, and the rationale. The log is part of the artefact; readers can reproduce any prior version from the canonical record.

VIII  /  CHANGE LOG

Versioned. Every change recorded.

VERSION SCHEMA RUNNER CHANGE
v1.0 v0.2.0 0.2.0 Initial published methodology. JSON Schema (Draft 2020-12), Python runner, twelve field-level publish blockers, chassis citation backbone, four assumption tiers, four verdicts, NO-GO-requires-reformulation rule, forbidden-generalization clause, reproducibility protocol, right-of-reply protocol.