Magnitude ↔ Flux Ratio implementation

Binding contract

This record describes what an executable surface must bind and validate. It does not claim that a public calculator, package, or production route is deployed.

Record owner

Guth Instruments

Lifecycle

verified-clean

Evidence ID

t2-005

Effect

Computation or source lookup only

Input and validation requirements

A zero flux denominator produces an undefined flux ratio and non-finite logarithm; without explicit positive-flux validation, the instrument can emit an invalid result. The specification also has a sign/order convention hazard that can silently produce the reciprocal ratio.

Required corrections

No binding erratum is attached to this unique-name record. Implementers must still preserve the declared units, domain, and failure behavior.

Inspectable interface fixture

The sample below is evidence for interface and validation tests, not a production implementation.

{
  "inputs": {
    "mode": "flux_to_magnitude_difference",
    "F1": 10,
    "F2": 25,
    "flux_unit": "Jy"
  },
  "expected_outputs": {
    "magnitude_difference_m1_minus_m2": 0.9948500218
  },
  "working": "F1/F2 = 10/25 = 0.4. log10(0.4) = -0.3979400087. m1−m2 = -2.5 × (-0.3979400087) = 0.9948500218."
}

Other records

Sources and evidence

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

• VERIFIED_LEDGER.json
• evidence-tranche2/tranche2-results.json