Source: https://guthlabs.ai/docs/instruments/oblique-shock-calculator/qualification/

instrument qualification / verified-with-binding-errata

# Oblique Shock Calculator qualification

Verified with errata that must be applied at binding time.

Status: **VERIFIED_WITH_ERRATA**Lifecycle: **verified-with-binding-errata**

## Ledger verdict

Verified with errata that must be applied at binding time.

**Status**: VERIFIED_WITH_ERRATA

**Tranche**: tranche-6

**Review vectors**: 4

**Ledger rows**: 1

## Applied errata

````
[
  {
    "vector": 1,
    "field": "M2",
    "wrong": "sqrt(3)=1.732",
    "correct": 2,
    "cause": "own working concludes M2=Mn2/sin(beta-theta)=1/sin30=2 (degenerate Mach wave, M unchanged) then field ships sqrt(3)"
  },
  {
    "vector": 2,
    "field": "M2",
    "wrong": 1.45605,
    "correct": 1.456324,
    "cause": "micro 5th-digit slip"
  },
  {
    "vector": 3,
    "field": "theta / M2",
    "wrong": "atan(75/382)=11.09 deg / 382.0",
    "correct": "atan(25*sqrt(3)/191)=12.77 deg / 2.3673",
    "cause": "working equates 25*sqrt(3)/191 with 75/382, i.e. sqrt(3)=1.5; M2 field ships the denominator 382 — nonsense value"
  },
  {
    "vector": 4,
    "field": "M2",
    "wrong": 4.14728827,
    "correct": 1.036822,
    "cause": "M2 through a beta=60deg shock at M1=2 cannot exceed M1"
  }
]
````

## Adversarial re-test context

The full catalog was re-tested from boundary, convention, and self-check angles in 2,787 requests. Five genuine computational defects were independently verified and corrected. This page reports the current ledger state for this instrument; it does not imply product deployment or interface qualification.

## Release gate

Bind every attached correction, replay the affected vectors, enforce boundary validation, and preserve evidence before describing the executable surface as qualified.

## Other records

[01**Overview**](<https://guthlabs.ai/docs/instruments/oblique-shock-calculator/>)[02**Mechanism**](<https://guthlabs.ai/docs/instruments/oblique-shock-calculator/mechanism/>)[03**Implementation**](<https://guthlabs.ai/docs/instruments/oblique-shock-calculator/implementation/>)

## Sources and evidence

These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.

- `VERIFIED_LEDGER.json`

- `STRESS_TEST_RECEIPT.json`

- `tranche errata record`