Source: https://guthlabs.ai/docs/instruments/candy-sugar-syrup-stage-reference/implementation/

instrument implementation / implementation-contract

# Candy/Sugar Syrup Stage Reference implementation

A source-bound implementation contract for Candy/Sugar Syrup Stage Reference; 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**: t7-119

**Effect**: Computation or source lookup only

## Input and validation requirements

An extreme but numerically valid elevation produces negative target temperatures, while the specification provides no input validation, altitude validity limit, clamping behavior, or defined result for that case. The abbreviated data table also leaves intermediate temperatures such as 241-244°F unspecified.

## 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": {
    "measured_temperature_F": 240,
    "elevation_ft": 0
  },
  "expected_outputs": {
    "stage": "soft-ball",
    "target_temp_range_F": {
      "min": 235,
      "max": 240
    }
  },
  "reference_data": {
    "soft_ball_sea_level_range_F": {
      "min": 235,
      "max": 240
    },
    "source_convention": "Widely tabulated standard culinary candy-stage value; rounded °F range"
  },
  "working": "1. Altitude correction = 0 ft ÷ 500 ft/°F = 0°F.\n2. Adjusted soft-ball minimum = 235°F − 0°F = 235°F.\n3. Adjusted soft-ball maximum = 240°F − 0°F = 240°F.\n4. Measured temperature = 240°F, which equals the inclusive upper boundary.\n5. Result: soft-ball, target range 235–240°F."
}
````

## Other records

[01**Overview**](<https://guthlabs.ai/docs/instruments/candy-sugar-syrup-stage-reference/>)[02**Mechanism**](<https://guthlabs.ai/docs/instruments/candy-sugar-syrup-stage-reference/mechanism/>)[04**Qualification**](<https://guthlabs.ai/docs/instruments/candy-sugar-syrup-stage-reference/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-tranche7/tranche7-results.json`