Net Worth Tracker/Calculator mechanism

Model scope

The arithmetic snapshot calculation is valid for same-currency, same-unit, user-entered values. Review is required before claiming a verified trend feature because its computation and data requirements are undefined. The educational-only, non-individualized-finance disclaimer is appropriate.

• The snapshot formula net_worth = Σassets − Σliabilities is the standard formula and is correct.
• The claimed trend output has no defined formula, timestamps, comparison interval, or meaning (absolute change, percentage change, or plotted history), so the trend computation cannot be verified.

Units and conventions

• All asset and liability amounts must use the same currency and unit before summation; the spec does not identify a currency or whether values are dollars, cents, or another unit.
• Asset values should represent a stated valuation date and basis, such as current market value or user-estimated value, consistently across entries.
• The expected vectors assume USD amounts expressed in dollars, with decimal values allowed.

Inspectable vector

One of 4 source-bound review vectors:

{
  "inputs": {
    "assets": [
      {
        "name": "cash",
        "amount": 2500,
        "currency": "USD"
      },
      {
        "name": "investments",
        "amount": 12500,
        "currency": "USD"
      },
      {
        "name": "car",
        "amount": 8000,
        "currency": "USD"
      }
    ],
    "liabilities": [
      {
        "name": "credit card",
        "amount": 1200,
        "currency": "USD"
      },
      {
        "name": "auto loan",
        "amount": 4500,
        "currency": "USD"
      }
    ]
  },
  "expected_outputs": {
    "asset_total_usd": 23000,
    "liability_total_usd": 5700,
    "net_worth_usd": 17300
  },
  "working": "Asset total: 2,500 + 12,500 = 15,000; 15,000 + 8,000 = 23,000. Liability total: 1,200 + 4,500 = 5,700. Net worth: 23,000 − 5,700 = 17,300 USD."
}

Failure boundary

BREAK_CLAIMED · SELF_FLAGGED

The extreme-magnitude vector overflows typical JavaScript Number arithmetic to Infinity even though the mathematical result is 2e308. The convention probe also exposes a potentially material sign-entry ambiguity that can produce 9500 or 10500 from the same displayed figures.

Other records

Sources and evidence

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

• VERIFIED_LEDGER.json
• evidence-tranche5/tranche5-results.json
• BOUNDARY_HAZARD_CATALOG.json