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      "chaingraph_version": "0.4.0",
      "kernel_digest": "sha256:4da565b656d200c214becb712b820a097894e9edeae66b4275e34854847911c7",
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        "citations": {
          "cwhssa": {
            "detail": "Requires time-and-a-half overtime pay after 40 hours in a week. This kernel applies the premium to the basic hourly rate only, with fringe due straight-time for every hour -- the general convention, not an exhaustive rule for every fringe arrangement.",
            "source": "40 U.S.C. Sec. 3701 ff. (Contract Work Hours and Safety Standards Act); 29 CFR Part 5 contract clauses"
          },
          "davis_bacon_act": {
            "detail": "Requires laborers and mechanics on covered federal construction contracts to be paid not less than the wage determination rate (base plus fringe) for their classification.",
            "source": "40 U.S.C. Sec. 3141 ff. (Davis-Bacon Act); 29 CFR Part 5"
          },
          "irc_45b7_correction": {
            "detail": "Correction payment = the wage deficiency (tripled on intentional disregard) plus interest at the Sec. 6621 underpayment rate with 6 percentage points substituted for 3. Re-verify against primary text before relying on it (research findings, not facts).",
            "source": "IRC Sec. 45(b)(7)(B)(i)(I); 26 CFR Sec. 1.45-7"
          },
          "irc_45b7_penalty": {
            "detail": "Penalty of $5,000 per laborer or mechanic paid below the prevailing wage for any period during the year ($10,000 on intentional disregard). This kernel computes the penalty for the ONE stated period only; annual aggregation and deduplication across periods is the caller’s responsibility.",
            "source": "IRC Sec. 45(b)(7)(B)(i)(II)/(iii); 26 CFR Sec. 1.45-7"
          },
          "wh347": {
            "detail": "Certified payroll form referenced for the shape of a submitted-payroll comparison. No expiration/sunset date is encoded here -- verify current validity at dol.gov/agencies/whd/forms/wh347.",
            "source": "DOL Form WH-347 (OMB Control No. 1235-0008)"
          }
        },
        "comparison_basis": "The recomputed side of every comparison is derived here from the wage determination and the caller-declared payroll hours. It is not read from a submitted certified payroll. A comparison is only meaningful because the two sides have independent provenance.",
        "currency": "USD",
        "deficient_worker_count": 0,
        "diff": [
          {
            "agrees": true,
            "detail": "The independently recomputed required gross equals the amount the submitted certified payroll states for this worker.",
            "difference_display": "0.00",
            "difference_minor_units": 0,
            "in_payroll": true,
            "recomputed_gross_display": "2416.00",
            "recomputed_gross_minor_units": 241600,
            "submitted_gross_display": "2416.00",
            "submitted_gross_minor_units": 241600,
            "worker_id": "W-1"
          }
        ],
        "fence": "This is not tax or legal advice. Rate compliance and CWHSSA overtime are recomputed from a caller-declared wage determination and payroll hours. PWA-mode correction and penalty figures follow IRC Sec. 45(b)(7)-(8) as re-verified against primary text at build, computed for the ONE stated period only -- annual aggregation across periods is the caller’s responsibility. No WH-347 expiration date is encoded. A divergence against a submitted payroll is an arithmetic finding about the figures supplied here, never a legal or tax determination.",
        "indeterminate_reason": null,
        "minor_unit_exponent": 2,
        "not_proven": [
          {
            "detail": "This kernel recomputes wage/hour and IRC Sec. 45 correction arithmetic from caller-declared facts about one payroll week. It is not a substitute for counsel, a CPA, the Department of Labor, or the IRS.",
            "item": "Not tax or legal advice"
          },
          {
            "detail": "The wage determination rows and each payroll row’s classification are caller-declared and are not independently verified against the governing WD published for the project’s locality.",
            "item": "Wage determination match"
          },
          {
            "detail": "Overtime premium is modelled on the basic hourly rate only, with fringe due straight-time for every hour. Fringe-in-lieu-of-benefits arrangements and split-shift rules are not modelled.",
            "item": "CWHSSA overtime convention"
          },
          {
            "detail": "An excess-apprentice count is flagged, but this kernel does not reassign excess apprentice hours to the journeyman rate or verify the declared ratio against the governing apprenticeship program.",
            "item": "Apprentice ratio recompute"
          },
          {
            "detail": "Interest on a deficiency is computed as simple interest over the caller-declared number of underpayment days at the declared annual rate, not the daily-compounding convention Sec. 6621 actually uses.",
            "item": "Sec. 6621 interest approximation"
          },
          {
            "detail": "The Sec. 45(b)(7)(B) penalty aggregates by calendar year across every payroll period. This kernel is single-run and stateless and computes the penalty for the ONE stated period only; deduplicating a worker who recurs across periods in the same year is the caller’s responsibility.",
            "item": "Annual penalty aggregation"
          },
          {
            "detail": "No WH-347 OMB expiration/sunset date is encoded. Verify current form validity directly at dol.gov/agencies/whd/forms/wh347.",
            "item": "WH-347 form currency"
          },
          {
            "detail": "Hours, rates, fringe, and every submitted-payroll figure are caller-supplied and asserted, not independently verified against timecards or payroll records.",
            "item": "Input accuracy"
          }
        ],
        "note": "Deterministic certified-payroll and prevailing-wage recomputation for one stated payroll week. Single-run and stateless: it holds no records, runs on no schedule, and retains nothing.",
        "payroll_rows": [
          {
            "classification": "Electrician",
            "combined_paid_rate_display": "53.00",
            "combined_paid_rate_minor_units": 5300,
            "deficiency_display": "0.00",
            "deficiency_minor_units": 0,
            "fringe_paid_display": "11.00",
            "fringe_paid_minor_units": 1100,
            "ot_hours": 4,
            "paid_gross_display": "2416.00",
            "paid_gross_minor_units": 241600,
            "rate_meets_wd": true,
            "rate_paid_display": "42.00",
            "rate_paid_minor_units": 4200,
            "required_gross_display": "2416.00",
            "required_gross_minor_units": 241600,
            "st_hours": 40,
            "wd_combined_rate_display": "53.00",
            "wd_combined_rate_minor_units": 5300,
            "wd_found": true,
            "worker_id": "W-1"
          }
        ],
        "project_ref": "SYNTH-PROJ-574-A",
        "pwa_mode": true,
        "pwa_result": {
          "correction_computable": true,
          "deficient_worker_count": 0,
          "intentional_disregard": false,
          "irc_6621_underpayment_rate_percent": null,
          "penalty_scope": "This penalty is computed for the ONE stated payroll period only. The statute aggregates by calendar year across every period; deduplicating a worker who recurs across periods in the same year is the caller’s responsibility.",
          "penalty_worker_count": 0,
          "per_worker_penalty_display": "5000.00",
          "per_worker_penalty_minor_units": 500000,
          "total_correction_payment_display": null,
          "total_correction_payment_minor_units": null,
          "total_penalty_display": "0.00",
          "total_penalty_minor_units": 0,
          "underpayment_days": null,
          "worker_corrections": []
        },
        "rationale": [
          "Certified payroll recomputed for project reference SYNTH-PROJ-574-A, week ending 2026-08-01 payroll week.",
          "1 wage-determination classification and 1 payroll row were supplied.",
          "No worker’s recomputed required gross exceeded the recomputed paid gross; no deficiency was found.",
          "PWA mode was requested but no deficiency was found, so no IRC Sec. 45(b)(7)-(8) correction or penalty applies.",
          "The independently recomputed required gross agrees with every one of the 1 worker the submitted certified payroll states a figure for. The left-hand side was computed here from the wage determination and hours, not lifted from the submission.",
          "This is not tax or legal advice. WH-347 is referenced only for the shape of a submitted-payroll comparison; no form expiration/sunset date is encoded here."
        ],
        "rejected_inputs": [],
        "submitted_supplied": true,
        "total_deficiency_display": "0.00",
        "total_deficiency_minor_units": 0,
        "verdict": "MATCHES",
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            "classification": "Electrician",
            "combined_rate_minor_units": 5300,
            "fringe_rate_minor_units": 1100
          }
        ],
        "week_ending_label": "2026-08-01 payroll week"
      }
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