Source: https://guthlabs.ai/docs/instruments/ideal-adjusted-body-weight/implementation/

instrument implementation / implementation-contract

# Ideal/Adjusted Body Weight implementation

A source-bound implementation contract for Ideal/Adjusted Body Weight; deployment and executable qualification remain separate.

Status: **VERIFIED_CLEAN**Lifecycle: **implementation-contract**

## 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**: t3-002

**Effect**: Computation or source lookup only

## Input and validation requirements

The extreme-magnitude vector produces Infinity and NaN through floating-point overflow and Infinity plus negative Infinity. The convention probe also exposes an input-validation hazard when height units are omitted or ambiguous.

## 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": {
    "sex": "man",
    "height": 60,
    "height_unit": "in",
    "actual_weight": 50,
    "weight_unit": "kg"
  },
  "expected_outputs": {
    "IBW_kg": 50,
    "AdjBW_kg": 50
  },
  "working": "Inches over 60 = 60 - 60 = 0. IBW = 50 + 2.3 × 0 = 50 kg. ActualBW - IBW = 50 - 50 = 0 kg. AdjBW = 50 + 0.4 × 0 = 50 kg."
}
````

## Other records

[01**Overview**](<https://guthlabs.ai/docs/instruments/ideal-adjusted-body-weight/>)[02**Mechanism**](<https://guthlabs.ai/docs/instruments/ideal-adjusted-body-weight/mechanism/>)[04**Qualification**](<https://guthlabs.ai/docs/instruments/ideal-adjusted-body-weight/qualification/>)

## Sources and evidence

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

- `VERIFIED_LEDGER.json`

- `evidence-tranche3/tranche3-results.json`