Moment of Inertia Lookup & Calculator 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

t6-027

Effect

Computation or source lookup only

Input and validation requirements

The extreme-magnitude disk input produces Infinity in ordinary IEEE-754 JavaScript arithmetic. Without finite-value validation or an overflow warning, the calculator can return a nonphysical non-finite result.

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": {
    "shape": "uniform thin disk",
    "M_kg": 2.4,
    "R_m": 0.5,
    "d_m": 0.3,
    "axis": "parallel to central symmetry axis, offset by d"
  },
  "expected_outputs": {
    "I_cm_kg_m2": 0.3,
    "I_about_offset_axis_kg_m2": 0.516
  },
  "working": "I_cm = 1/2 MR² = 1/2 × 2.4 × (0.5)² = 1.2 × 0.25 = 0.300 kg·m². Md² = 2.4 × (0.3)² = 2.4 × 0.09 = 0.216 kg·m². I = I_cm + Md² = 0.300 + 0.216 = 0.516 kg·m²."
}

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-tranche6/tranche6-results.json