# Operations reports and developer utilities

Choose a defined job, review its input example and price, then select a payment option. Private result access lasts30days; save your downloaded copy. Each is a one-time job, without a recurring commitment. Use authorized, non-sensitive input. The work is limited to the supplied records or mathematical profile, without external actions, professional certification or an outcome guarantee. Input and computation profiles describe the work included, not payment admission limits. A quote is unpaid; a signature alone does not establish settlement.

## Aquaculture Harvest Adjusted Feed Ratio

USD 9.00 per job.

Reconcile economic dry-feed conversion on a matched biomass interval with harvests and external stocking separated. Nonpositive net production yields no finite ratio. Does not prescribe feeding or assess animal health. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/i3481e/i3481e.pdf). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "openingBiomassKg": 100,
      "closingBiomassKg": 140,
      "harvestedKg": 20,
      "stockedKg": 10,
      "dryFeedKg": 75,
      "reportedRatio": 1.4,
      "tolerance": 0.05
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/netProductionKg": 50,
  "/records/0/feedConversionRatio": 1.5,
  "/records/0/outsideTolerance": true
}
```

## Fish Sample Biomass Extrapolation

USD 9.00 per job.

Extrapolate a simple random individual-weight sample to a supplied population count with a sampling standard error. Count uncertainty, unequal selection, finite-population correction and health assessment are excluded. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/i3481e/i3481e.pdf). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "sampleGrams": [
        90,
        100,
        110
      ],
      "populationCount": 1000,
      "reportedBiomassKg": 95,
      "toleranceKg": 2
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/meanGrams": 100,
  "/records/0/sampleSdGrams": 10,
  "/records/0/estimatedBiomassKg": 100,
  "/records/0/standardErrorKg": 5.773502691896258,
  "/records/0/outsideTolerance": true
}
```

## Aquaculture Cohort Count Reconciliation

USD 9.00 per job.

Reconcile unique animals across a supplied cohort interval, keeping recorded mortality and transfers distinct. An unexplained count is not asserted escape, death or inaccurate staff work. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/i3481e/i3481e.pdf). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "opening": 1000,
      "stocked": 100,
      "harvested": 200,
      "mortalities": 20,
      "transferredOut": 50,
      "closing": 825
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/expectedClosing": 830,
  "/records/0/unexplainedCount": 5,
  "/records/0/mismatch": true
}
```

## Aquafeed Dry Matter Issuance Review

USD 9.00 per job.

Reconcile net feed issuance on a supplied uniform moisture basis, keeping returned feed separate. Uneaten feed, nutritional composition, ration selection and feeding instructions are excluded. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/i3481e/i3481e.pdf). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "asFedKg": 100,
      "moistureFraction": 0.1,
      "returnedAsFedKg": 10,
      "recordedDryIssuedKg": 80,
      "toleranceKg": 0.5
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/netAsFedKg": 90,
  "/records/0/dryIssuedKg": 81,
  "/records/0/outsideTolerance": true
}
```

## Aquaculture Flow Oxygen Ledger

USD 9.00 per job.

Reconcile the signed dissolved-oxygen transport difference of matched inlet and outlet measurements. Does not attribute oxygen use, set aeration or evaluate safe oxygen conditions. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/i3481e/i3481e.pdf). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "flowLitresMinute": 1000,
      "inletMgL": 8,
      "outletMgL": 5,
      "minutes": 60,
      "recordedOxygenKg": 0.16,
      "toleranceKg": 0.005
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/transportedDifferenceKg": 0.18,
  "/records/0/absoluteDifferenceKg": 0.18,
  "/records/0/outsideTolerance": true
}
```

## Recirculation Bypass Flow Split Review

USD 9.00 per job.

Separate treatment flow from a declared bypass and reconcile treated volume over a common interval. Turnovers are an ideal volume ratio, not disinfection, filtration performance or stocking advice. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/i3481e/i3481e.pdf). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "totalFlowM3Hour": 100,
      "bypassFraction": 0.2,
      "tankVolumeM3": 200,
      "hours": 5,
      "recordedTreatedM3": 380,
      "toleranceM3": 5
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/treatedFlowM3Hour": 80,
  "/records/0/treatedM3": 400,
  "/records/0/idealTreatedTurnovers": 2,
  "/records/0/outsideTolerance": true
}
```

## Salinity Mass Fraction Blend Record

USD 9.00 per job.

Reconcile conservative dissolved-salt mass fractions from supplied wet masses. Practical salinity units, conductivity conversion, density change and species suitability are excluded. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/i3481e/i3481e.pdf). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "firstKg": 100,
      "firstSaltFraction": 0.03,
      "secondKg": 100,
      "secondSaltFraction": 0.01,
      "reportedSaltFraction": 0.018,
      "toleranceFraction": 0.001
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/totalKg": 200,
  "/records/0/saltKg": 4,
  "/records/0/blendedFraction": 0.02,
  "/records/0/outsideTolerance": true
}
```

## Pond Feed Area Loading Register

USD 9.00 per job.

Normalize recorded dry feed per hectare-day over a matched pond area and interval. This is an accounting intensity, not a permissible loading rate or environmental assessment. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/i3481e/i3481e.pdf). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "dryFeedKg": 100,
      "pondAreaM2": 5000,
      "days": 2,
      "recordedKgHectareDay": 90,
      "tolerance": 2
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/kgHectareDay": 100,
  "/records/0/outsideTolerance": true
}
```

## Settled Solids Harvest Dry Mass

USD 9.00 per job.

Reconcile heterogeneous settled-solids draw volumes using individual measured dry-solids concentrations. Does not infer removal efficiency, pathogen status or disposal eligibility. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/i3481e/i3481e.pdf). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "draws": [
        {
          "litres": 100,
          "dryGramsLitre": 2
        },
        {
          "litres": 50,
          "dryGramsLitre": 4
        }
      ],
      "recordedDryKg": 0.35,
      "toleranceKg": 0.01
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/drawnLitres": 150,
  "/records/0/dryKg": 0.4,
  "/records/0/averageDryGramsLitre": 2.6666666666666665,
  "/records/0/outsideTolerance": true
}
```

## Hatchery Egg Stage Count Bridge

USD 9.00 per job.

Reconcile sequential egg and larval stage counts with explicit mutually exclusive losses. No diagnosis, breeding selection, incubation settings or viability testing is performed. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/i3481e/i3481e.pdf). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "eggs": 1000,
      "unfertilized": 100,
      "unhatched": 90,
      "larvalLosses": 10,
      "recordedViableLarvae": 790
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/fertilized": 900,
  "/records/0/hatched": 810,
  "/records/0/viableLarvae": 800,
  "/records/0/hatchFraction": 0.9,
  "/records/0/mismatch": true
}
```

## Plug Tray Saleable Cell Register

USD 9.00 per job.

Reconcile one-plant-per-cell tray inventory with mutually exclusive empty and discarded cell counts. Does not assess plant health, germination method or sale eligibility. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/w4367e/w4367e0c.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "trays": 10,
      "cellsPerTray": 100,
      "emptyCells": 50,
      "discardedCells": 30,
      "reportedPlants": 900
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/totalCells": 1000,
  "/records/0/saleablePlants": 920,
  "/records/0/saleableFraction": 0.92,
  "/records/0/mismatch": true
}
```

## Drip Low Quarter Uniformity Review

USD 9.00 per job.

Calculate low-quarter distribution uniformity from matched-duration catch samples whose count is divisible by four. Does not select system pressure, irrigation duration or an agronomic acceptance threshold. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/w4367e/w4367e0c.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "catchVolumesMl": [
        10,
        20,
        30,
        40
      ],
      "declaredMinimum": 0.5,
      "reportedUniformity": 0.5,
      "tolerance": 0.01
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/meanMl": 25,
  "/records/0/lowQuarterMeanMl": 10,
  "/records/0/uniformity": 0.4,
  "/records/0/reportMismatch": true,
  "/records/0/belowDeclared": true
}
```

## Substrate Container Volumetric Water Review

USD 9.00 per job.

Reconcile measured container dry/wet masses and supplied water density with bulk substrate volume. Roots, dissolved solids, drying-method validity and irrigation targets are excluded. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/w4367e/w4367e0c.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "dryContainerGrams": 200,
      "wetContainerGrams": 700,
      "emptyContainerGrams": 100,
      "substrateVolumeCm3": 1000,
      "waterDensityGcm3": 1,
      "reportedWaterFraction": 0.45,
      "tolerance": 0.01
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/drySubstrateGrams": 100,
  "/records/0/waterGrams": 500,
  "/records/0/volumetricWaterFraction": 0.5,
  "/records/0/outsideTolerance": true
}
```

## Container Drainage Half Time Register

USD 9.00 per job.

Fit an exponential excess-water drainage half time from supplied container mass observations and an independently supplied equilibrium mass. Reports log-space fit residual, without extrapolating crop conditions, selecting irrigation or certifying substrate performance. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/w4367e/w4367e0c.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "samples": [
        {
          "minutes": 0,
          "wetGrams": 200
        },
        {
          "minutes": 10,
          "wetGrams": 150
        },
        {
          "minutes": 20,
          "wetGrams": 125
        }
      ],
      "equilibriumGrams": 100,
      "reportedHalfMinutes": 8,
      "toleranceMinutes": 0.5
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/decayPerMinute": 0.06931471805599453,
  "/records/0/halfMinutes": 10,
  "/records/0/rmsLogResidual": 0,
  "/records/0/outsideTolerance": true
}
```

## Fertigation Dissolved Solids Ledger

USD 9.00 per job.

Reconcile measured dissolved-solids concentrations and volumes on one mass basis. Electrical conductivity is not treated as conserved salt mass; nutrient uptake, reactions and crop suitability are not inferred. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/w4367e/w4367e0c.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "incomingLitres": 100,
      "incomingMgL": 1000,
      "drainLitres": 20,
      "drainMgL": 1500,
      "storedSolidsChangeGrams": 10,
      "recordedNetRemovalGrams": 50,
      "toleranceGrams": 1
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/incomingGrams": 100,
  "/records/0/drainedGrams": 30,
  "/records/0/netRemovalGrams": 60,
  "/records/0/outsideTolerance": true
}
```

## Injector Stock Dilution Meter Review

USD 9.00 per job.

Check a completed additive-volume dilution record using measured stock/carrier volumes and a solute-free carrier assumption. Does not choose fertilizer composition, concentration or injector settings. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/w4367e/w4367e0c.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "stockMgL": 10000,
      "stockLitres": 1,
      "carrierLitres": 99,
      "measuredOutletMgL": 90,
      "toleranceMgL": 2
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/totalLitres": 100,
  "/records/0/expectedOutletMgL": 100,
  "/records/0/stockVolumeFraction": 0.01,
  "/records/0/outsideTolerance": true
}
```

## Greenhouse Daily Light Integral Register

USD 9.00 per job.

Integrate a supplied PPFD trace by linear interpolation over its actual covered interval. It is a daily light integral only when the trace covers the full day; crop targets and sensor calibration are excluded. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/w4367e/w4367e0c.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "samples": [
        {
          "seconds": 0,
          "ppfdMicromolM2S": 1000
        },
        {
          "seconds": 3600,
          "ppfdMicromolM2S": 1000
        }
      ],
      "reportedMolM2": 4,
      "toleranceMolM2": 0.1
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/elapsedSeconds": 3600,
  "/records/0/lightIntegralMolM2": 3.6,
  "/records/0/outsideTolerance": true
}
```

## Ventilation Moisture Transport Register

USD 9.00 per job.

Reconcile signed water-vapor transport using matched absolute humidity concentrations and one common volumetric basis. Does not calculate relative humidity, condensation, ventilation settings or crop conditions. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/w4367e/w4367e0c.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "airM3Hour": 1000,
      "hours": 2,
      "inletWaterGm3": 5,
      "outletWaterGm3": 10,
      "recordedWaterKg": 9,
      "toleranceKg": 0.2
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/signedWaterKg": 10,
  "/records/0/outsideTolerance": true
}
```

## Pest Scout Trap Exposure Rate

USD 9.00 per job.

Normalize recorded trap catches by actual trap-days, allowing unequal exposure periods. Does not identify pests, infer prevalence or select a treatment threshold or pesticide. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/w4367e/w4367e0c.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "traps": [
        {
          "captures": 10,
          "exposureDays": 5
        },
        {
          "captures": 20,
          "exposureDays": 5
        }
      ],
      "reportedPerTrapDay": 2.5,
      "tolerance": 0.1
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/totalCaptures": 30,
  "/records/0/trapDays": 10,
  "/records/0/capturesPerTrapDay": 3,
  "/records/0/outsideTolerance": true
}
```

## Modified Temperature Degree Day Register

USD 9.00 per job.

Reconcile the explicitly defined modified-average degree-day method, clipping each daily minimum and maximum to supplied lower/upper bases before averaging. Single-sine methods, species thresholds and harvest forecasts are excluded. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.fao.org/4/w4367e/w4367e0c.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "days": [
        {
          "minimumC": 10,
          "maximumC": 30
        },
        {
          "minimumC": 0,
          "maximumC": 40
        }
      ],
      "baseC": 10,
      "upperC": 30,
      "reportedDegreeDays": 19,
      "tolerance": 0.1
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/dailyDegreeDays": [
    10,
    10
  ],
  "/records/0/totalDegreeDays": 20,
  "/records/0/outsideTolerance": true
}
```

## Weld Continuous Heat Input Record

USD 9.00 per job.

Reconcile a steady-current travel record with an explicitly supplied thermal efficiency. Pulsed power, process selection, procedure qualification and safe operating settings are excluded. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.twi-global.com/technical-knowledge/faqs/faq-what-is-the-difference-between-heat-input-and-arc-energy). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "volts": 20,
      "amps": 100,
      "travelMmMinute": 120,
      "efficiency": 0.8,
      "reportedKjMm": 0.7,
      "tolerance": 0.01
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/arcKjMm": 1,
  "/records/0/heatKjMm": 0.8,
  "/records/0/outsideTolerance": true
}
```

## Weld Wire Deposition Mass Record

USD 9.00 per job.

Reconcile solid round wire issuance and separately measured deposited mass. Excludes cored-wire density inference, weld strength and equipment settings. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.twi-global.com/technical-knowledge/faqs/faq-what-is-the-difference-between-heat-input-and-arc-energy). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "diameterMm": 2,
      "issuedMetres": 100,
      "densityKgM3": 8000,
      "depositedKg": 2,
      "reportedEfficiency": 0.7,
      "tolerance": 0.01
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/issuedKg": 2.5132741228718345,
  "/records/0/depositionFraction": 0.7957747154594768,
  "/records/0/outsideTolerance": true
}
```

## Shielding Gas Meter Budget Record

USD 9.00 per job.

Compare a constant-flow meter budget including per-start preflow and postflow. Leak diagnosis, regulator adjustment, purge design and safe gas handling are excluded. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.twi-global.com/technical-knowledge/faqs/faq-what-is-the-difference-between-heat-input-and-arc-energy). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "litresMinute": 10,
      "arcMinutes": 20,
      "starts": 10,
      "preflowSeconds": 2,
      "postflowSeconds": 4,
      "recordedLitres": 290,
      "toleranceLitres": 2
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/flowMinutes": 21,
  "/records/0/expectedLitres": 210,
  "/records/0/outsideTolerance": true
}
```

## Weld Arc Duty Observation Register

USD 9.00 per job.

Compare observed arc-on time with a caller-declared accounting fraction. This is not a manufacturer duty-cycle rating, thermal safety check or authorization to operate. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.twi-global.com/technical-knowledge/faqs/faq-what-is-the-difference-between-heat-input-and-arc-energy). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "observationMinutes": 10,
      "arcMinutes": 4,
      "declaredFraction": 0.3
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/arcFraction": 0.4,
  "/records/0/aboveDeclared": true
}
```

## IIW Carbon Equivalent Record

USD 9.00 per job.

Recalculate the IIW compositional expression from supplied mass percentages. Does not select preheat, assess weldability or assert compliance with any grade or welding code. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.twi-global.com/technical-knowledge/faqs/faq-what-is-the-difference-between-heat-input-and-arc-energy). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "carbon": 0.1,
      "manganese": 1.2,
      "chromium": 0.5,
      "molybdenum": 0,
      "vanadium": 0,
      "nickel": 1.5,
      "copper": 0,
      "reported": 0.4,
      "tolerance": 0.01
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/equivalentPercent": 0.5,
  "/records/0/outsideTolerance": true
}
```

## Interpass Temperature Log Review

USD 9.00 per job.

Review supplied temperature readings and sampling gaps against owner-declared bands. No interpolation of unobserved temperatures, procedure approval or equipment control. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.twi-global.com/technical-knowledge/faqs/faq-what-is-the-difference-between-heat-input-and-arc-energy). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "readings": [
        {
          "minute": 0,
          "celsius": 100
        },
        {
          "minute": 5,
          "celsius": 160
        },
        {
          "minute": 12,
          "celsius": 90
        }
      ],
      "declaredMinimumC": 95,
      "declaredMaximumC": 150,
      "maximumGapMinutes": 6
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/outsideCount": 2,
  "/records/0/maximumObservedGap": 7,
  "/records/0/gapExceeded": true
}
```

## Unequal Leg Fillet Geometry Record

USD 9.00 per job.

Reconcile the perpendicular altitude of an ideal triangular fillet with unequal legs and explicit included angle. Concavity, penetration, strength and acceptance certification are excluded. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.twi-global.com/technical-knowledge/faqs/faq-what-is-the-difference-between-heat-input-and-arc-energy). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "firstLegMm": 3,
      "secondLegMm": 4,
      "includedDegrees": 90,
      "reportedThroatMm": 2.2,
      "toleranceMm": 0.01
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/triangleAreaMm2": 6,
  "/records/0/faceMm": 5,
  "/records/0/idealThroatMm": 2.4,
  "/records/0/outsideTolerance": true
}
```

## Circumferential Inspection Arc Union

USD 9.00 per job.

Merge reported circular inspection coverage across zero degrees without counting overlap twice. Does not evaluate indications, examination quality or inspection-code acceptance. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.twi-global.com/technical-knowledge/faqs/faq-what-is-the-difference-between-heat-input-and-arc-energy). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "arcs": [
        {
          "startDegrees": 350,
          "sweepDegrees": 30
        },
        {
          "startDegrees": 10,
          "sweepDegrees": 30
        }
      ],
      "reportedCoveredDegrees": 45,
      "toleranceDegrees": 1
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/coveredDegrees": 50,
  "/records/0/uncoveredDegrees": 310,
  "/records/0/outsideTolerance": true
}
```

## Weld Joint Fitup Measurement Register

USD 9.00 per job.

Reconcile fit-up measurements against independently supplied project bands. It does not choose tolerances, inspect the joint or certify structural or procedural acceptance. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.twi-global.com/technical-knowledge/faqs/faq-what-is-the-difference-between-heat-input-and-arc-energy). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "points": [
        {
          "rootGapMm": 2,
          "mismatchMm": 0.5
        },
        {
          "rootGapMm": 4,
          "mismatchMm": 2
        }
      ],
      "gapMinimumMm": 1,
      "gapMaximumMm": 3,
      "mismatchMaximumMm": 1,
      "reportedExceptions": 0
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/exceptions": 1,
  "/records/0/maximumMismatchMm": 2,
  "/records/0/recordMismatch": true
}
```

## Pulse Weld Power Integral Record

USD 9.00 per job.

Integrate the exact product of independently piecewise-linear voltage and current traces. Does not multiply their separate averages or claim sampled traces capture all switching energy. No process settings or procedure qualification. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.twi-global.com/technical-knowledge/faqs/faq-what-is-the-difference-between-heat-input-and-arc-energy). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "samples": [
        {
          "seconds": 0,
          "volts": 10,
          "amps": 20
        },
        {
          "seconds": 1,
          "volts": 20,
          "amps": 10
        }
      ],
      "reportedJoules": 225,
      "toleranceJoules": 1
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/joules": 216.66666666666666,
  "/records/0/durationSeconds": 1,
  "/records/0/averageWatts": 216.66666666666666,
  "/records/0/outsideTolerance": true
}
```

## Gage Block Reference Temperature Record

USD 9.00 per job.

Normalize a supplied length to 20 Celsius using a supplied linear expansion coefficient. Temperature gradients, wringing, instrument bias and full uncertainty or accredited calibration are excluded. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.nist.gov/publications/gage-block-handbook). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "measuredMm": 100.001,
      "temperatureC": 30,
      "alphaPerC": 0.000001,
      "reportedAt20Mm": 100.001,
      "toleranceMm": 0.0001
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/at20Mm": 100,
  "/records/0/correctionMm": -0.001,
  "/records/0/outsideTolerance": true
}
```

## Pipette Gravimetric Volume Register

USD 9.00 per job.

Reconcile gravimetric volume using an independently supplied mass-to-volume Z factor and evaporation correction. Does not derive environmental corrections, certify ISO compliance or authorize clinical use. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.nist.gov/publications/gage-block-handbook). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "netMassMg": 99,
      "evaporationMg": 1,
      "zMicrolitresPerMg": 1.002,
      "nominalMicrolitres": 100,
      "toleranceMicrolitres": 0.1
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/correctedMassMg": 100,
  "/records/0/volumeMicrolitres": 100.2,
  "/records/0/errorMicrolitres": 0.2,
  "/records/0/outsideTolerance": true
}
```

## Balance Repeatability Check Register

USD 9.00 per job.

Reconcile repeated balance indications using sample standard deviation. Excludes bias, drift, minimum-weight certification and a full measurement uncertainty budget. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.nist.gov/publications/gage-block-handbook). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "readingsMg": [
        99,
        100,
        101
      ],
      "reportedSdMg": 0.5,
      "toleranceMg": 0.1
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/meanMg": 100,
  "/records/0/sampleSdMg": 1,
  "/records/0/outsideTolerance": true
}
```

## Torque Analyzer Indication Error Register

USD 9.00 per job.

Review supplied torque reference/indication pairs against a caller-declared percentage band. Does not calibrate equipment, set fastening torque or certify tool suitability. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.nist.gov/publications/gage-block-handbook). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "pairs": [
        {
          "referenceNm": 10,
          "indicatedNm": 10.1
        },
        {
          "referenceNm": 20,
          "indicatedNm": 21
        }
      ],
      "maximumPercent": 2,
      "reportedExceptions": 0
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/errorsPercent": [
    1,
    5
  ],
  "/records/0/exceptions": 1,
  "/records/0/recordMismatch": true
}
```

## Dial Indicator Reversal Register

USD 9.00 per job.

Reconcile matched forward/reverse dial indications at supplied positions. Fixture motion, instrument adjustment and full hysteresis certification are excluded. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.nist.gov/publications/gage-block-handbook). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "points": [
        {
          "forwardMm": 1,
          "reverseMm": 1.01
        },
        {
          "forwardMm": 2,
          "reverseMm": 2.03
        }
      ],
      "maximumReversalMm": 0.02
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/signedReversalsMm": [
    0.01,
    0.03
  ],
  "/records/0/maximumAbsoluteMm": 0.03,
  "/records/0/aboveDeclared": true
}
```

## Pressure Calibrator Endpoint Linearity Record

USD 9.00 per job.

Review deviation from the supplied two-endpoint indication line in one consistent pressure unit. This is not total error, uncertainty, pressure safety or accredited calibration. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.nist.gov/publications/gage-block-handbook). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "lowReference": 0,
      "highReference": 100,
      "lowIndication": 1,
      "highIndication": 101,
      "points": [
        {
          "reference": 25,
          "indication": 27
        },
        {
          "reference": 75,
          "indication": 76
        }
      ],
      "maximumResidual": 0.5
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/residuals": [
    1,
    0
  ],
  "/records/0/maximumAbsolute": 1,
  "/records/0/aboveDeclared": true
}
```

## Linear Resistance Thermometer Record

USD 9.00 per job.

Check a declared linear resistance-temperature model over the supplied data. Does not claim the nonlinear platinum standard, compensate lead resistance or assess process safety. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.nist.gov/publications/gage-block-handbook). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "referenceOhms": 100,
      "alphaPerC": 0.004,
      "resistanceOhms": 104,
      "referenceC": 0,
      "reportedC": 9,
      "toleranceC": 0.2
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/calculatedC": 10,
  "/records/0/errorC": 1,
  "/records/0/outsideTolerance": true
}
```

## Check Standard Fixed Baseline Register

USD 9.00 per job.

Compare check-standard readings with an independently supplied fixed mean and sample standard deviation. Does not fit or move the baseline, approve batches or certify statistical control. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.nist.gov/publications/gage-block-handbook). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "baselineMean": 100,
      "baselineSd": 2,
      "readings": [
        100,
        104,
        108
      ],
      "declaredZLimit": 3
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/zScores": [
    0,
    2,
    4
  ],
  "/records/0/outsideCount": 1
}
```

## Radial Probe Range Register

USD 9.00 per job.

Reconcile peak-to-peak radial probe readings about the supplied fixed center. Excludes center fitting, spindle separation, harmonic filtering and ISO roundness certification. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.nist.gov/publications/gage-block-handbook). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "radialMicrometres": [
        2,
        4,
        -1,
        3
      ],
      "reportedRangeMicrometres": 4,
      "toleranceMicrometres": 0.1
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/peakToPeakMicrometres": 5,
  "/records/0/outsideTolerance": true
}
```

## Micrometer Spindle Pitch Travel Record

USD 9.00 per job.

Compare measured spindle travel with a declared screw pitch and recorded turns. Backlash, scale division selection, contact force and traceable calibration are excluded. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.nist.gov/publications/gage-block-handbook). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "pitchMmTurn": 0.5,
      "completeTurns": 4,
      "fractionalTurn": 0.5,
      "measuredTravelMm": 2.3,
      "toleranceMm": 0.01
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/idealTravelMm": 2.25,
  "/records/0/signedTravelErrorMm": 0.05,
  "/records/0/outsideTolerance": true
}
```

## DMX Fixture Address Footprint Review

USD 9.00 per job.

Review declared fixture footprints within independent 512-address DMX universes. Intentional shared addressing is still reported. No discovery, console changes, network control or electrical approval. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://support.etcconnect.com/ETC/Consoles/ColorSource/Software_and_Programming/How_to_Check_DMX_Addressing_for_Fixtures_from_Fixture_Library_and_Edit_Profiles). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "fixtures": [
        {
          "fixture": "A",
          "universe": "U1",
          "address": 1,
          "footprint": 10
        },
        {
          "fixture": "B",
          "universe": "U1",
          "address": 10,
          "footprint": 4
        },
        {
          "fixture": "C",
          "universe": "U2",
          "address": 510,
          "footprint": 4
        }
      ]
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/overflows": [
    "C"
  ],
  "/records/0/collisions": [
    {
      "first": "A",
      "second": "B",
      "universe": "U1"
    }
  ],
  "/records/0/hasConflicts": true
}
```

## Show Cue Follow Time Reconciliation

USD 9.00 per job.

Reconcile cumulative relative cue-follow delays with recorded absolute cue times. Does not measure actual runtime variance, execute cues or assert a console programming format. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://support.etcconnect.com/ETC/Consoles/ColorSource/Software_and_Programming/How_to_Check_DMX_Addressing_for_Fixtures_from_Fixture_Library_and_Edit_Profiles). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "openingSecond": 10,
      "cues": [
        {
          "cue": "A",
          "delayFromPreviousSeconds": 2,
          "recordedAbsoluteSecond": 12
        },
        {
          "cue": "B",
          "delayFromPreviousSeconds": 3,
          "recordedAbsoluteSecond": 16
        }
      ],
      "toleranceSeconds": 0.1
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/expectedSeconds": [
    12,
    15
  ],
  "/records/0/mismatches": 1
}
```

## Setlist Interstitial Runtime Register

USD 9.00 per job.

Reconcile a supplied setlist including explicit gaps after each item. Excludes live timing, audience behavior, contractual approval and schedule dispatch. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://support.etcconnect.com/ETC/Consoles/ColorSource/Software_and_Programming/How_to_Check_DMX_Addressing_for_Fixtures_from_Fixture_Library_and_Edit_Profiles). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "slots": [
        {
          "item": "A",
          "performanceSeconds": 180,
          "followingGapSeconds": 20
        },
        {
          "item": "B",
          "performanceSeconds": 200,
          "followingGapSeconds": 0
        }
      ],
      "windowSeconds": 390,
      "reportedTotalSeconds": 390,
      "toleranceSeconds": 1
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/performanceSeconds": 380,
  "/records/0/gapSeconds": 20,
  "/records/0/totalSeconds": 400,
  "/records/0/overWindow": true,
  "/records/0/recordMismatch": true
}
```

## Show Backup Manifest Pair Review

USD 9.00 per job.

Compare supplied show-file manifest claims only. Does not open paths, hash files, upload data or establish that a backup exists, is trustworthy or can restore a console. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://support.etcconnect.com/ETC/Consoles/ColorSource/Software_and_Programming/How_to_Check_DMX_Addressing_for_Fixtures_from_Fixture_Library_and_Edit_Profiles). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "primary": [
        {
          "path": "show.dat",
          "sha256": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
        },
        {
          "path": "patch.dat",
          "sha256": "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"
        }
      ],
      "backup": [
        {
          "path": "show.dat",
          "sha256": "cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc"
        }
      ]
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/missing": [
    "patch.dat"
  ],
  "/records/0/different": [
    "show.dat"
  ],
  "/records/0/extra": [],
  "/records/0/mismatch": true
}
```

## Audio Stagebox Input Patch Review

USD 9.00 per job.

Review one-to-one physical input and console-channel assignments in a supplied patch list. Intentional splits are reported; no device access, patch changes or electrical assessment. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://support.etcconnect.com/ETC/Consoles/ColorSource/Software_and_Programming/How_to_Check_DMX_Addressing_for_Fixtures_from_Fixture_Library_and_Edit_Profiles). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "channels": [
        {
          "source": "Mic A",
          "stagebox": "S1",
          "port": 1,
          "consoleChannel": 1
        },
        {
          "source": "Mic B",
          "stagebox": "S1",
          "port": 1,
          "consoleChannel": 2
        }
      ]
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/duplicatePorts": [
    "S1:1"
  ],
  "/records/0/duplicateChannels": [],
  "/records/0/hasConflicts": true
}
```

## Camera Clock Linear Drift Register

USD 9.00 per job.

Reconcile offset and constant linear drift from paired camera/reference clock readings. Excludes drop-frame timecode parsing, genlock configuration and resynchronizing or editing media. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://support.etcconnect.com/ETC/Consoles/ColorSource/Software_and_Programming/How_to_Check_DMX_Addressing_for_Fixtures_from_Fixture_Library_and_Edit_Profiles). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "referenceStartSeconds": 100,
      "referenceEndSeconds": 1100,
      "cameraStartSeconds": 102,
      "cameraEndSeconds": 1102.01,
      "reportedDriftPpm": 0,
      "tolerancePpm": 1
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/startOffsetSeconds": 2,
  "/records/0/endOffsetSeconds": 2.01,
  "/records/0/driftPpm": 10,
  "/records/0/outsideTolerance": true
}
```

## Projection Screen Luminance Record

USD 9.00 per job.

Reconcile the ideal lumens-times-gain over square-feet screen relation. Uniformity, ambient light, contrast, optical losses and measured cinema compliance are excluded. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://support.etcconnect.com/ETC/Consoles/ColorSource/Software_and_Programming/How_to_Check_DMX_Addressing_for_Fixtures_from_Fixture_Library_and_Edit_Profiles). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "measuredLumens": 1000,
      "widthFeet": 10,
      "heightFeet": 5,
      "screenGain": 1,
      "reportedFootLamberts": 18,
      "tolerance": 1
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/areaSquareFeet": 50,
  "/records/0/idealFootLamberts": 20,
  "/records/0/outsideTolerance": true
}
```

## Projection Edge Blend Canvas Register

USD 9.00 per job.

Reconcile a horizontal pixel canvas with adjacent pairwise overlaps and no triple-overlap zones. Excludes lens geometry, warping, blend calibration and device configuration. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://support.etcconnect.com/ETC/Consoles/ColorSource/Software_and_Programming/How_to_Check_DMX_Addressing_for_Fixtures_from_Fixture_Library_and_Edit_Profiles). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "projectorWidthsPixels": [
        1920,
        1920,
        1920
      ],
      "overlapsPixels": [
        200,
        200
      ],
      "reportedCanvasPixels": 5400
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/canvasPixels": 5360,
  "/records/0/mismatch": true
}
```

## Distributed Audio Tap Ledger

USD 9.00 per job.

Reconcile a supplied constant-voltage speaker tap list against a caller-declared bookkeeping reserve. Does not establish compatible line voltage, wiring safety, impedance or amplifier suitability. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://support.etcconnect.com/ETC/Consoles/ColorSource/Software_and_Programming/How_to_Check_DMX_Addressing_for_Fixtures_from_Fixture_Library_and_Edit_Profiles). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "tapWatts": [
        10,
        20,
        30
      ],
      "declaredAmplifierWatts": 100,
      "reserveFraction": 0.5,
      "reportedLoadWatts": 55,
      "toleranceWatts": 1
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/tapLoadWatts": 60,
  "/records/0/declaredUsableWatts": 50,
  "/records/0/overDeclared": true,
  "/records/0/recordMismatch": true
}
```

## Performer Quick Change Window Review

USD 9.00 per job.

Review supplied performer exit/entrance pairs against independently declared quick-change durations. Does not infer human capabilities, route movement, staffing requirements or operational safety. Integral report quantities must remain exactly representable; unsupported calculation profiles reject before checkout. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://support.etcconnect.com/ETC/Consoles/ColorSource/Software_and_Programming/How_to_Check_DMX_Addressing_for_Fixtures_from_Fixture_Library_and_Edit_Profiles). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "exits": [
        {
          "performer": "A",
          "exitSecond": 100,
          "nextEntranceSecond": 145,
          "declaredRequiredSeconds": 60
        },
        {
          "performer": "B",
          "exitSecond": 200,
          "nextEntranceSecond": 300,
          "declaredRequiredSeconds": 60
        }
      ],
      "reportedShortWindows": 0
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/availableSeconds": [
    45,
    100
  ],
  "/records/0/shortWindows": 1,
  "/records/0/recordMismatch": true
}
```

## Equatorial Hour Angle to Horizontal

USD 1.00 per job.

Rotate geometric equatorial hour angle into a local horizon frame. Azimuth runs north through east; at zenith or nadir it is null. No refraction, ephemeris, time-scale conversion or navigation qualification. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.iausofa.org/cookbooks). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "hourAngleDegrees": 0,
      "declinationDegrees": 0,
      "latitudeDegrees": 30
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/azimuthDegrees": 180,
  "/records/0/altitudeDegrees": 60
}
```

## Equatorial Ecliptic Obliquity Rotation

USD 1.00 per job.

Rotate a supplied equatorial direction into the ecliptic using supplied obliquity and a common equinox. No precession, nutation, aberration or automatic epoch selection. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.iausofa.org/cookbooks). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "rightAscensionDegrees": 90,
      "declinationDegrees": 0,
      "obliquityDegrees": 30
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/longitudeDegrees": 90,
  "/records/0/latitudeDegrees": -30
}
```

## ICRS to Galactic Direction

USD 1.00 per job.

Apply the fixed ICRS-to-Galactic orthogonal direction matrix. Input is an ICRS direction, not an apparent or historical equinox coordinate; no frame conversion or astrometric corrections. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.iausofa.org/cookbooks). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "rightAscensionDegrees": 339.98212219513056,
      "declinationDegrees": -67.52233482658798
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/longitudeDegrees": 320,
  "/records/0/latitudeDegrees": -45
}
```

## IAU Earth Rotation Angle UT1

USD 1.00 per job.

Calculate the IAU 2000 Earth Rotation Angle from an explicitly supplied two-part UT1 Julian date. UTC must not be substituted without DUT1; no leap-second service or observer coordinates. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.iausofa.org/cookbooks). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "ut1Part1": 2451545,
      "ut1Part2": 0
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/angleDegrees": 280.46061837504
}
```

## IAU 2006 Greenwich Mean Sidereal Angle

USD 1.00 per job.

Combine the IAU 2000 Earth Rotation Angle with the IAU 2006 GMST polynomial, using separate UT1 and TT dates within five TT centuries of J2000. No equation of equinoxes, UTC conversion or apparent sidereal time. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.iausofa.org/cookbooks). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "ut1Part1": 2451545,
      "ut1Part2": 0,
      "ttPart1": 2451545,
      "ttPart2": 0
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/angleDegrees": 280.4606224044844
}
```

## Parallactic Angle Geometric

USD 1.00 per job.

Compute the signed geometric parallactic angle with positive westward hour angle. Undefined coincident great-circle directions return null; no atmospheric dispersion or telescope control. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.iausofa.org/cookbooks). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "hourAngleDegrees": 90,
      "declinationDegrees": 0,
      "latitudeDegrees": 45
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/angleDegrees": 45
}
```

## Sky Separation Position Angle

USD 1.00 per job.

Calculate stable great-circle angular separation and initial position angle north through east for a common coordinate frame. Position angle is null for coincident or antipodal directions; no catalog matching or physical distance inference. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.iausofa.org/cookbooks). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "firstRaDegrees": 0,
      "firstDecDegrees": 0,
      "secondRaDegrees": 90,
      "secondDecDegrees": 0
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/separationDegrees": 90,
  "/records/0/positionAngleDegrees": 90
}
```

## Catalog Proper Motion Tangent Step

USD 1.00 per job.

Extrapolate a supplied angular proper-motion vector along its tangent great circle, using mu-alpha-star with its cos(declination) factor already included. Limited to a one-degree angular step; radial velocity, perspective, parallax and full three-dimensional space-motion propagation are excluded. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.iausofa.org/cookbooks). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "rightAscensionDegrees": 0,
      "declinationDegrees": 0,
      "muAlphaStarMasYear": 100,
      "muDeltaMasYear": 0,
      "years": 10
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/rightAscensionDegrees": 0.0002777777777777778,
  "/records/0/declinationDegrees": 0,
  "/records/0/displacementMas": 1000
}
```

## Apparent Magnitude Flux Combination

USD 1.00 per job.

Combine incoherent apparent magnitudes in one identical passband and zero-point system using a stable relative-flux sum. No spectral correction, extinction inference or calibration. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.iausofa.org/cookbooks). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "magnitudes": [
        0,
        0
      ]
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/combinedMagnitude": -0.752574989159953,
  "/records/0/relativeFluxToBrightest": 2
}
```

## Positive Parallax Distance Interval

USD 1.00 per job.

Invert an explicitly positive supplied parallax and its symmetric measurement interval. A lower endpoint at or below zero yields no finite far endpoint. This is interval transformation, not a Bayesian distance estimate or confidence claim. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.iausofa.org/cookbooks). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "parallaxMas": 100,
      "uncertaintyMas": 10
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/distanceParsecs": 10,
  "/records/0/nearParsecs": 9.090909090909092,
  "/records/0/farParsecs": 11.11111111111111
}
```

## Local ENU Covariance to ECEF

USD 1.00 per job.

Propagate a positive-semidefinite ENU covariance into an ECEF frame using supplied standard deviations and EN,EU,NU correlations. Distinct from point conversion: no confidence-level inference, datum accuracy or survey certification. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pubs.usgs.gov/publication/pp1395). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "standardDeviations": [
        1,
        2,
        3
      ],
      "correlations": [
        0,
        0,
        0
      ],
      "anchorLatitudeDegrees": 0,
      "anchorLongitudeDegrees": 0
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/covariance": [
    [
      9,
      0,
      0
    ],
    [
      0,
      1,
      0
    ],
    [
      0,
      0,
      4
    ]
  ],
  "/records/0/trace": 14
}
```

## Helmert Position Vector Linearized Codec

USD 1.00 per job.

Apply the small-angle seven-parameter position-vector convention and an exact inverse of that linearized matrix. Parameters and frames must be supplied; no EPSG operation selection, plate motion or coordinate-frame sign convention substitution. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pubs.usgs.gov/publication/pp1395). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "position": [
        1,
        2,
        3
      ],
      "translation": [
        10,
        20,
        30
      ],
      "rotationArcseconds": [
        0,
        0,
        0
      ],
      "scalePpm": 0
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/transformed": [
    11,
    22,
    33
  ],
  "/records/0/recovered": [
    1,
    2,
    3
  ]
}
```

## Ellipsoidal Mercator Coordinate Codec

USD 1.00 per job.

Use ellipsoidal isometric latitude and a bounded inverse iteration, with unit scale and no false origin. Distinct from spherical Mercator. No official CRS identification or coordinate accuracy guarantee. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pubs.usgs.gov/publication/pp1395). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "semimajor": 1,
      "flattening": 0,
      "longitudeDegrees": 90,
      "latitudeDegrees": 0,
      "centralLongitudeDegrees": 0
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/x": 1.5707963267948966,
  "/records/0/y": 0,
  "/records/0/recoveredLatitudeDegrees": 0,
  "/records/0/converged": true
}
```

## Ellipsoidal Rhumb Line Inverse

USD 1.00 per job.

Compute the shortest-wrapped constant-bearing line on a supplied oblate ellipsoid using Simpson meridian integration and an east/west limit. Coincident points conventionally return bearing zero. Excludes geodesic distance and operational navigation. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pubs.usgs.gov/publication/pp1395). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "semimajor": 1,
      "flattening": 0,
      "firstLatitudeDegrees": 0,
      "firstLongitudeDegrees": 0,
      "secondLatitudeDegrees": 0,
      "secondLongitudeDegrees": 90
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/distance": 1.5707963267948966,
  "/records/0/bearingDegrees": 90
}
```

## Oblate Ellipsoid Authalic Radius

USD 1.00 per job.

Calculate the equal-area sphere radius of a supplied oblate ellipsoid, including a stable spherical limit. This does not transform latitude or define an authoritative Earth model. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pubs.usgs.gov/publication/pp1395). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "semimajor": 2,
      "flattening": 0
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/radius": 2,
  "/records/0/surfaceArea": 50.26548245743669
}
```

## Ellipsoid Principal Curvature Radii

USD 1.00 per job.

Return meridional and prime-vertical principal radii on a supplied reference ellipsoid and their Gaussian curvature. No terrain curvature, geoid model or survey certification. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pubs.usgs.gov/publication/pp1395). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "semimajor": 2,
      "flattening": 0,
      "latitudeDegrees": 45
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/meridionalRadius": 2,
  "/records/0/primeVerticalRadius": 2,
  "/records/0/gaussianCurvature": 0.25
}
```

## Supplied Geoid Cell Height Conversion

USD 1.00 per job.

Bilinearly interpolate one supplied nonwrapping geoid cell in SW,SE,NW,NE order and apply H=h-N. Caller must supply compatible datum, tide system and length units; no official grid is fetched or certified. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pubs.usgs.gov/publication/pp1395). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "southDegrees": 0,
      "northDegrees": 10,
      "westDegrees": 0,
      "eastDegrees": 10,
      "latitudeDegrees": 5,
      "longitudeDegrees": 5,
      "cornerUndulations": [
        1,
        2,
        3,
        4
      ],
      "ellipsoidalHeight": 100
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/undulation": 2.5,
  "/records/0/orthometricHeight": 97.5
}
```

## Spherical Transverse Mercator Forward

USD 1.00 per job.

Project a sphere with transverse Mercator within the central meridian hemisphere, unit scale and zero false origin. This is not ellipsoidal UTM or an EPSG-qualified CRS. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pubs.usgs.gov/publication/pp1395). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "radius": 1,
      "latitudeDegrees": 0,
      "longitudeDegrees": 0,
      "centralLongitudeDegrees": 0,
      "originLatitudeDegrees": 0
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/x": 0,
  "/records/0/y": 0
}
```

## Ellipsoid Meridian Arc Integral

USD 1.00 per job.

Integrate the meridional radius by fixed 256-panel Simpson quadrature on an oblate ellipsoid. Inputs are degrees in a common model; numerical quadrature is not a certified survey result. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pubs.usgs.gov/publication/pp1395). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "semimajor": 1,
      "flattening": 0,
      "firstLatitudeDegrees": 0,
      "secondLatitudeDegrees": 89.999
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/signedArc": 1.5707788735023767,
  "/records/0/absoluteArc": 1.5707788735023767
}
```

## Ellipsoidal Parallel Meridian Area Cell

USD 1.00 per job.

Integrate reference-ellipsoid surface area between two parallels and nonwrapping meridians. Boundaries are not geodesics; terrain relief, parcel boundaries and cadastral certification are excluded. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pubs.usgs.gov/publication/pp1395). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "semimajor": 1,
      "flattening": 0,
      "southDegrees": 0,
      "northDegrees": 30,
      "westDegrees": 0,
      "eastDegrees": 90
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/surfaceArea": 0.7853981633974483
}
```

## Stokes Coherency Physical Codec

USD 1.00 per job.

Convert physical Stokes vectors to Hermitian coherency matrices and back, using S3=2 Im(conj(Ex) Ey). Matrices are row-major complex [real,imaginary] pairs. Zero intensity has null degree; no instrument calibration. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pages.nist.gov/SCATMECH/docs/elements.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "stokes": [
        2,
        0,
        0,
        2
      ]
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/coherency": [
    [
      1,
      0
    ],
    [
      0,
      -1
    ],
    [
      0,
      1
    ],
    [
      1,
      0
    ]
  ],
  "/records/0/recoveredStokes": [
    2,
    0,
    0,
    2
  ],
  "/records/0/eigenvalues": [
    0,
    2
  ],
  "/records/0/degree": 1
}
```

## Rotated Linear Retarder Jones

USD 1.00 per job.

Construct R(theta) diag(1,exp(i delta)) R(-theta), where the first axis has zero phase and delta is the second-axis phase. Row-major complex entries; global phase, wavelength dispersion and measured element quality are excluded. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pages.nist.gov/SCATMECH/docs/elements.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "retardanceDegrees": 180,
      "axisDegrees": 45
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/jones": [
    [
      0,
      0
    ],
    [
      1,
      0
    ],
    [
      1,
      0
    ],
    [
      0,
      0
    ]
  ]
}
```

## Rotated Linear Diattenuator Jones

USD 1.00 per job.

Construct a passive linear diattenuator from intensity transmissions, converting to amplitude with square roots. Axis angles and complex row-major convention are explicit; no retardance or real-device qualification. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pages.nist.gov/SCATMECH/docs/elements.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "firstIntensityTransmission": 1,
      "secondIntensityTransmission": 0,
      "axisDegrees": 45
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/jones": [
    [
      0.5,
      0
    ],
    [
      0.5,
      0
    ],
    [
      0.5,
      0
    ],
    [
      0.5,
      0
    ]
  ],
  "/records/0/unpolarizedTransmission": 0.5
}
```

## Complex Jones Sequence Cascade

USD 1.00 per job.

Compose coherent deterministic Jones elements in traversal order, first element acting first. No depolarizing mixtures, gain-device approval, optical power safety or measured wavelength dependence. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pages.nist.gov/SCATMECH/docs/elements.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "elements": [
        [
          [
            1,
            0
          ],
          [
            0,
            0
          ],
          [
            0,
            0
          ],
          [
            1,
            0
          ]
        ],
        [
          [
            0,
            0
          ],
          [
            1,
            0
          ],
          [
            1,
            0
          ],
          [
            0,
            0
          ]
        ]
      ],
      "inputJones": [
        [
          1,
          0
        ],
        [
          0,
          0
        ]
      ]
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/jones": [
    [
      0,
      0
    ],
    [
      1,
      0
    ],
    [
      1,
      0
    ],
    [
      0,
      0
    ]
  ],
  "/records/0/outputJones": [
    [
      0,
      0
    ],
    [
      1,
      0
    ]
  ],
  "/records/0/intensity": 1
}
```

## Jones to Mueller Consistent Convention

USD 1.00 per job.

Convert a deterministic row-major complex Jones matrix to its real Mueller representation using S3=2 Im(conj(Ex) Ey). A Jones matrix cannot describe arbitrary depolarization; no inference of measured physical realizability. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pages.nist.gov/SCATMECH/docs/elements.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "jones": [
        [
          1,
          0
        ],
        [
          0,
          0
        ],
        [
          0,
          0
        ],
        [
          1,
          0
        ]
      ]
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/mueller": [
    [
      1,
      0,
      0,
      0
    ],
    [
      0,
      1,
      0,
      0
    ],
    [
      0,
      0,
      1,
      0
    ],
    [
      0,
      0,
      0,
      1
    ]
  ]
}
```

## Stokes Passive Reference Axis Rotation

USD 1.00 per job.

Rotate the transverse reference axes passively by theta, producing a double-angle rotation of S1/S2 while retaining S3. This changes coordinates, not the physical beam or an optical element. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pages.nist.gov/SCATMECH/docs/elements.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "stokes": [
        1,
        1,
        0,
        0
      ],
      "axisDegrees": 45
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/rotatedStokes": [
    1,
    0,
    -1,
    0
  ],
  "/records/0/degree": 1
}
```

## Uniform Linear Analyzer Stokes Fit

USD 1.00 per job.

Fit S0/S1/S2 from an equally spaced analyzer sweep theta=i*180/n degrees with known common exposure and zero dark offset. S3 is unobservable and returned null; no full polarimeter calibration. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pages.nist.gov/SCATMECH/docs/elements.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "intensities": [
        1,
        0.5,
        0,
        0.5
      ]
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/s0": 1,
  "/records/0/s1": 1,
  "/records/0/s2": 0,
  "/records/0/s3": null,
  "/records/0/rmsResidual": 0,
  "/records/0/linearlyPhysical": true
}
```

## Polarization Ellipse Stokes Construction

USD 1.00 per job.

Construct a Stokes state from intensity, polarized fraction and polarized-component ellipse angles, with S3 sign fixed by positive ellipticity. The remaining intensity is unpolarized; no optical generation or measured calibration. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pages.nist.gov/SCATMECH/docs/elements.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "intensity": 2,
      "degree": 0.5,
      "orientationDegrees": 0,
      "ellipticityDegrees": 0
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/stokes": [
    2,
    1,
    0,
    0
  ]
}
```

## Total Internal Reflection Phase Retardance

USD 1.00 per job.

Calculate complex Fresnel reflection phases for lossless nonmagnetic media in strict total internal reflection. Phase convention is negative s/p reflection phase; excludes absorbing media, coatings, ray control and power safety. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pages.nist.gov/SCATMECH/docs/elements.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "firstIndex": 1.4142135623730951,
      "secondIndex": 1,
      "incidenceDegrees": 60
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/sPhaseDegrees": -90,
  "/records/0/pPhaseDegrees": -126.86989764584402,
  "/records/0/pMinusSDegrees": -36.86989764584402,
  "/records/0/sReflectance": 1,
  "/records/0/pReflectance": 1
}
```

## Incoherent Stokes Ensemble Mixture

USD 1.00 per job.

Add mutually incoherent physical Stokes intensities with nonnegative exposure weights. Weights are multipliers, not normalized probabilities; coherent amplitudes, cross terms and temporal correlation are excluded. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://pages.nist.gov/SCATMECH/docs/elements.htm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "states": [
        [
          1,
          1,
          0,
          0
        ],
        [
          1,
          -1,
          0,
          0
        ]
      ],
      "weights": [
        1,
        1
      ]
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/stokes": [
    2,
    0,
    0,
    0
  ],
  "/records/0/degree": 0
}
```

## Seismic Classic STA LTA Energy

USD 1.00 per job.

Calculate trailing-window mean-square STA/LTA ratios on a supplied trace. Warm-up and zero long-window energy return null. No event declaration, monitoring, earthquake prediction or alerting. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://ghsc.code-pages.usgs.gov/esi/ground-motion-packet/terms.html). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "samples": [
        0,
        0,
        1,
        1
      ],
      "shortSamples": 1,
      "longSamples": 2
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/ratios": [
    null,
    null,
    2,
    1
  ]
}
```

## Arias Intensity Significant Duration

USD 1.00 per job.

Integrate squared piecewise-linear acceleration exactly and locate 5/95 percent energy times by bounded bisection. Zero motion has null duration. This describes a supplied record, not seismic hazard, liquefaction or structural safety. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://ghsc.code-pages.usgs.gov/esi/ground-motion-packet/terms.html). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "accelerationMps2": [
        1,
        1,
        1
      ],
      "sampleSeconds": 1,
      "gravityMps2": 1.5707963267948966
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/ariasMetresSecond": 2,
  "/records/0/t5Seconds": 0.1,
  "/records/0/t95Seconds": 1.9,
  "/records/0/duration5to95Seconds": 1.8
}
```

## Seismic Cumulative Absolute Velocity

USD 1.00 per job.

Integrate absolute piecewise-linear acceleration, splitting sign crossings rather than overestimating them with absolute-endpoint trapezoids. Excludes thresholded standardized CAV, event detection and damage assessment. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://ghsc.code-pages.usgs.gov/esi/ground-motion-packet/terms.html). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "accelerationMps2": [
        -1,
        1
      ],
      "sampleSeconds": 2
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/cavMetresSecond": 1,
  "/records/0/peakAccelerationMps2": 1
}
```

## Linear SDOF Newmark Response Spectrum

USD 1.00 per job.

Solve zero-initial-state linear unit-mass oscillators with Newmark average acceleration beta=1/4,gamma=1/2. At least 20 samples per period are required; reports peaks at sample times and does not certify discretization accuracy, building response or safety. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://ghsc.code-pages.usgs.gov/esi/ground-motion-packet/terms.html). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "accelerationMps2": [
        0,
        0,
        0
      ],
      "sampleSeconds": 0.01,
      "periodsSeconds": [
        1
      ],
      "dampingRatio": 0.05
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/spectra": [
    {
      "periodSeconds": 1,
      "peakRelativeDisplacementM": 0,
      "pseudoAccelerationMps2": 0
    }
  ]
}
```

## Accelerogram Mean Baseline Integration

USD 1.00 per job.

Remove the arithmetic sample mean and integrate piecewise-linear acceleration exactly from zero velocity/displacement. This is an explicit simple baseline model, not a recovered true ground displacement or certified processing pipeline. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://ghsc.code-pages.usgs.gov/esi/ground-motion-packet/terms.html). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "accelerationMps2": [
        1,
        2,
        3
      ],
      "sampleSeconds": 1
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/removedMeanMps2": 2,
  "/records/0/velocityMps": [
    0,
    -0.5,
    0
  ],
  "/records/0/displacementM": [
    0,
    -0.3333333333333333,
    -0.6666666666666666
  ]
}
```

## Brune Displacement Spectrum Scenario

USD 1.00 per job.

Evaluate a supplied omega-square displacement spectrum with constant-Q exponential attenuation. Amplitude is in caller units; geometrical spreading, site response, source fitting and hazard forecasts are excluded. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://ghsc.code-pages.usgs.gov/esi/ground-motion-packet/terms.html). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "zeroFrequencyAmplitude": 2,
      "cornerHz": 1,
      "frequenciesHz": [
        0,
        1,
        2
      ],
      "travelSeconds": 0,
      "qualityFactor": 100
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/amplitudes": [
    2,
    1,
    0.4
  ]
}
```

## Wadati Arrival Time Linear Fit

USD 1.00 per job.

Fit S-minus-P against P arrival time by ordinary least squares for a common-origin, constant velocity-ratio scenario. No picking, event location, heterogeneous path correction or operational earthquake monitoring. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://ghsc.code-pages.usgs.gov/esi/ground-motion-packet/terms.html). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "arrivals": [
        {
          "pSeconds": 10,
          "sSeconds": 20
        },
        {
          "pSeconds": 20,
          "sSeconds": 40
        },
        {
          "pSeconds": 30,
          "sSeconds": 60
        }
      ]
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/slope": 1,
  "/records/0/vpVs": 2,
  "/records/0/originSeconds": 0,
  "/records/0/rmsSeconds": 0
}
```

## Gutenberg Richter Complete Sample B

USD 1.00 per job.

Calculate the maximum-likelihood b estimate with a half-bin correction for a supplied complete, uniformly binned sample. Completeness is declared, not inferred. No earthquake prediction, future rate or independent uncertainty assessment. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://ghsc.code-pages.usgs.gov/esi/ground-motion-packet/terms.html). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "magnitudes": [
        1,
        1,
        1,
        1,
        1,
        1,
        1,
        1,
        1,
        1
      ],
      "completenessMagnitude": 1,
      "binWidth": 0.2
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/meanMagnitude": 1,
  "/records/0/bValue": 4.342944819032518,
  "/records/0/sampleCount": 10
}
```

## Analog Pole Zero Frequency Response

USD 1.00 per job.

Evaluate the supplied analog transfer function gain*product(s-zero)/product(s-pole) at s=i*2*pi*f. Pole/zero values are radians per second, not Hertz. No instrument metadata retrieval, deconvolution or stability certification. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://ghsc.code-pages.usgs.gov/esi/ground-motion-packet/terms.html). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "zeros": [],
      "poles": [
        [
          -1,
          0
        ]
      ],
      "gain": 1,
      "frequenciesHz": [
        0,
        0.15915494309189535
      ]
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/response": [
    [
      1,
      0
    ],
    [
      0.5,
      -0.5
    ]
  ]
}
```

## Isotropic Rayleigh Wave Speed Root

USD 1.00 per job.

Solve the physical sub-shear Rayleigh root for a homogeneous isotropic elastic half-space with positive bulk modulus. Excludes layering, dispersion, inversion and seismic or structural safety assessment. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://ghsc.code-pages.usgs.gov/esi/ground-motion-packet/terms.html). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "pWaveMps": 1.7320508075688772,
      "sWaveMps": 1
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/ratioToS": 0.919401686761966,
  "/records/0/rayleighMps": 0.919401686761966,
  "/records/0/residual": 0
}
```

## SCS Event Curve Number Runoff

USD 1.00 per job.

Calculate event runoff depth from a supplied curve number and explicit initial-abstraction fraction in millimetres. No soil selection, parameter calibration, antecedent-condition inference, flood prediction or drainage certification. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.hec.usace.army.mil/confluence/hmsdocs/hmstrm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "rainfallMm": 100,
      "curveNumber": 100,
      "initialAbstractionFraction": 0.2
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/retentionMm": 0,
  "/records/0/initialAbstractionMm": 0,
  "/records/0/runoffMm": 100
}
```

## Rational Method Peak Flow Scenario

USD 1.00 per job.

Convert a supplied Rational Method coefficient, design intensity and area into an ideal peak flow. Does not select a storm, time of concentration or applicability and is not a flood forecast or engineering approval. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.hec.usace.army.mil/confluence/hmsdocs/hmstrm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "coefficient": 0.5,
      "intensityMmHour": 36,
      "areaHectares": 10
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/peakM3Second": 0.5
}
```

## Muskingum Linear Reach Routing

USD 1.00 per job.

Route a supplied nonnegative hydrograph using one linear Muskingum reach with explicit common time units. Nonnegative routing coefficients are required; no parameter fitting, Muskingum-Cunge hydraulics or operational flood routing. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.hec.usace.army.mil/confluence/hmsdocs/hmstrm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "inflows": [
        1,
        2,
        3
      ],
      "initialOutflow": 1,
      "storageTime": 1,
      "weighting": 0,
      "stepTime": 2
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/outflows": [
    1,
    1.5,
    2.5
  ],
  "/records/0/coefficients": [
    0.5,
    0.5,
    0
  ]
}
```

## Nash Gamma Unit Hydrograph

USD 1.00 per job.

Evaluate the analytic unit-volume impulse response of a cascade of identical linear reservoirs. Ordinates use inverse supplied time units; finite sampled ordinates are not renormalized and no catchment calibration is implied. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.hec.usace.army.mil/confluence/hmsdocs/hmstrm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "reservoirCount": 2,
      "storageTime": 1,
      "times": [
        0,
        1,
        2
      ]
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/unitOrdinates": [
    0,
    0.36787944117144233,
    0.2706705664732254
  ],
  "/records/0/meanLag": 2
}
```

## Discrete Runoff Unit Hydrograph Convolution

USD 1.00 per job.

Convolve discrete equal-duration excess-depth pulses with the matching duration unit hydrograph. Input ordinates must already be discharge per unit depth; no extra timestep multiplier, loss estimation or automatic unit-hydrograph normalization. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.hec.usace.army.mil/confluence/hmsdocs/hmstrm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "excessDepths": [
        1,
        2
      ],
      "unitOrdinates": [
        0.25,
        0.5,
        0.25
      ]
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/outflowOrdinates": [
    0.25,
    1,
    1.25,
    0.5
  ]
}
```

## Ponded Green Ampt Infiltration Step

USD 1.00 per job.

Advance the integrated Green-Ampt equation from positive initial infiltration under uninterrupted ponding. Suction times moisture deficit is supplied as one length. No rainfall-limited ponding onset, parameter selection, soil diagnosis or forecast. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.hec.usace.army.mil/confluence/hmsdocs/hmstrm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "initialInfiltrationMm": 10,
      "conductivityMmHour": 5,
      "suctionDeficitMm": 0,
      "hours": 2
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/finalInfiltrationMm": 20,
  "/records/0/incrementMm": 10,
  "/records/0/residualMm": 0
}
```

## Horton Uniform Rainfall Infiltration

USD 1.00 per job.

Integrate min(uniform rainfall, exponentially decaying Horton capacity) with exact crossing time. Capacity decay is defined from the supplied interval start; no recovery, depression storage, calibration or real-time runoff prediction. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.hec.usace.army.mil/confluence/hmsdocs/hmstrm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "initialCapacityMmHour": 10,
      "finalCapacityMmHour": 2,
      "decayPerHour": 1,
      "rainfallMmHour": 1,
      "hours": 2
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/infiltrationMm": 2,
  "/records/0/rainfallMm": 2,
  "/records/0/excessMm": 0
}
```

## Hyetograph Duration Depth Aggregation

USD 1.00 per job.

Integrate piecewise-constant rainfall intensity with unequal explicitly supplied interval durations. This is an observed/scenario record calculation, not an IDF curve, return-period estimate or storm forecast. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.hec.usace.army.mil/confluence/hmsdocs/hmstrm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "intervals": [
        {
          "minutes": 30,
          "intensityMmHour": 10
        },
        {
          "minutes": 60,
          "intensityMmHour": 20
        }
      ]
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/totalMinutes": 90,
  "/records/0/depthMm": 25,
  "/records/0/timeWeightedIntensityMmHour": 16.666666666666668,
  "/records/0/maximumIntervalIntensityMmHour": 20
}
```

## Linear Reservoir Constant Inflow Steps

USD 1.00 per job.

Route interval-constant inflows through one linear reservoir using the exact exponential update. Outflows are end-of-interval rates and release is integrated by conservation; no channel hydraulics, dam operation or safety approval. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.hec.usace.army.mil/confluence/hmsdocs/hmstrm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "inflows": [
        1,
        1
      ],
      "initialStorage": 0,
      "storageTime": 1,
      "stepTime": 1
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/outflows": [
    0.6321205588285577,
    0.8646647167633873
  ],
  "/records/0/storages": [
    0.6321205588285577,
    0.8646647167633873
  ],
  "/records/0/releasedVolume": 1.1353352832366128
}
```

## Modified Puls Level Pool Routing

USD 1.00 per job.

Route supplied inflow point ordinates with trapezoidal continuity and a piecewise-linear monotone storage/discharge curve. No extrapolation, changing gates, evaporation or real reservoir operation; not a flood or dam-safety determination. Use authorized, non-sensitive data. The report describes supplied records and does not change external systems.

Reference: [technical reference](https://www.hec.usace.army.mil/confluence/hmsdocs/hmstrm). No endorsement is implied.

Example input:

```json
{
  "records": [
    {
      "id": "R1",
      "curve": [
        {
          "storage": 0,
          "outflow": 0
        },
        {
          "storage": 100,
          "outflow": 100
        }
      ],
      "inflows": [
        0,
        2,
        2
      ],
      "initialStorage": 0,
      "stepTime": 2
    }
  ]
}
```

Selected expected result fields:

```json
{
  "/records/0/storages": [
    0,
    1,
    2
  ],
  "/records/0/outflows": [
    0,
    1,
    2
  ],
  "/records/0/maximumContinuityResidual": 0
}
```