{
  "capability_id": "units.temperature.celsius_kelvin",
  "tool_id": "celsius-kelvin",
  "engine": "celsius-kelvin",
  "calculation_version": "1.0.2",
  "generated_at": "2026-11-10T05:18:41.896Z",
  "engine_build": "2026-11-09",
  "test_count": 6,
  "passed": 6,
  "failed": 0,
  "tests_summary": {
    "golden": {
      "passed": 2,
      "total": 2
    },
    "boundary": {
      "passed": 2,
      "total": 2
    },
    "property": {
      "passed": 2,
      "total": 2
    }
  },
  "engine_tested": true,
  "expert_reviewed": false,
  "internally_reviewed": true,
  "review_kind": "internal",
  "source_checked": true,
  "reviewed_by": "CalculatorX electrical review",
  "reviewer_role": null,
  "last_reviewed": "2026-08-09",
  "expert_review": {
    "status": "not_applicable",
    "reviewer": null,
    "note": "Internal domain review completed; not a named external expert review.",
    "kind": "internal"
  },
  "internal_review": {
    "status": "approved",
    "reviewer": {
      "name": "CalculatorX electrical review",
      "role": null
    },
    "reviewed_at": "2026-08-09",
    "scope": [
      "formula",
      "input semantics",
      "assumptions",
      "limitations",
      "sources",
      "tests"
    ],
    "kind": "internal"
  },
  "page": "https://www.calculatorx.com/calc/physics/celsius-kelvin",
  "api": "https://www.calculatorx.com/api/v1/calc/celsius-kelvin",
  "schema_input": "https://www.calculatorx.com/schemas/units.temperature.celsius_kelvin.input.json",
  "schema_output": "https://www.calculatorx.com/schemas/units.temperature.celsius_kelvin.output.json",
  "assumptions": [],
  "limitations": [
    "Not Fahrenheit/Rankine"
  ],
  "boundary_conditions": [
    "Finite JSON numbers and bounded decimal strings are accepted. Nondecimal strings are rejected.",
    "Nonzero results outside the binary64 range are rejected.",
    "K<0 → VALUE_OUT_OF_RANGE",
    "missing value → MISSING_REQUIRED_INPUT"
  ],
  "sources": [
    {
      "title": "SI temperature units",
      "section": "Kelvin / Celsius relation",
      "supports": "K = °C + 273.15",
      "kind": "reference"
    },
    {
      "title": "NIST / SI temperature",
      "section": "kelvin and Celsius",
      "supports": "T/K = t/°C + 273.15",
      "kind": "standard"
    }
  ],
  "methods": [],
  "fingerprint": "sha256:d7af6e1ad5d39ee3be0cfce6ea5f572267032a78eef7f3e5dc7ec3e3feedbe3b",
  "tier": "internally_reviewed",
  "verification": {
    "tests": {
      "passed": 6,
      "total": 6,
      "golden": 2,
      "boundary": 2,
      "property": 2
    },
    "contract_checks": {
      "passed": 6,
      "total": 6
    }
  },
  "evidence_core_generated_at": "2026-11-09T07:52:39.831Z",
  "rendered_at": "2026-11-10T05:18:41.896Z",
  "release_integrity": {
    "status": "verified",
    "scope": "workspace",
    "production_attestation_required": true,
    "calculation_version": "1.0.2",
    "artifacts": {
      "engine": "1.0.2",
      "page": "1.0.2",
      "capability": "1.0.2",
      "evidence": "1.0.2",
      "input_schema": "1.0.2",
      "output_schema": "1.0.2",
      "mcp_contract": "1.0.2"
    },
    "digests": {
      "input_schema_sha256": "afcc050eb5a57f499db2da7cb139986f5f1e0981d008ab32ee243be6bc03890a",
      "output_schema_sha256": "058bc19115573bebcd6ca791427779ce152e9b83f841a098a46e3887e6bee717",
      "evidence_sha256": "c5d2af3241d1d9545358628aeb65173b0a21709343d96b4ddb338713848e3010",
      "evidence_core_sha256": "c5d2af3241d1d9545358628aeb65173b0a21709343d96b4ddb338713848e3010",
      "capability_sha256": "9fcaad7d43d7455cc63586898e31ac1f09f0af4d1c33af2f4b6e4a2eb01927ba",
      "engine_sha256": "c6ebd8436f08b413e1ac6317b2d48550f2e6639a90dff254244e3aa562158b8d",
      "mcp_contract_sha256": "eb3e39ad4a95ed263415b4932f185d5edfe00a2403267b7c5ed5f718d1ff6da3"
    },
    "contract_checks": {
      "total": 6,
      "passed": 6,
      "failed": 0,
      "items": [
        {
          "id": "release-artifacts-aligned",
          "status": "pass",
          "detail": "1.0.2"
        },
        {
          "id": "schema-output-required-declared",
          "status": "pass"
        },
        {
          "id": "schema-valid-input-executes",
          "status": "pass"
        },
        {
          "id": "engine-success-output-validates-schema",
          "status": "pass"
        },
        {
          "id": "schema-rejects-incomplete-input",
          "status": "pass"
        },
        {
          "id": "rest-success-payload-validates-schema",
          "status": "pass"
        }
      ]
    },
    "report": "https://www.calculatorx.com/.well-known/calculatorx-release-integrity.json"
  },
  "tests": [],
  "disclosure": {
    "policy": "calculatorx-public-evidence-v1",
    "full_validation": "private",
    "representation": "summary"
  }
}