BalanceProof Makes SEC Balance Sheets Show Their Work

Field notes

The service combines SEC Financial Statement Data Sets with the XBRL frames API, then selects the consolidated company from repeated filing tags before testing the accounting identity. Its homepage reports 5,811 companies with complete balance sheets, including 4,912 that reconcile directly and 215 exceptions displayed with reasons. It also preserves the earliest filed version when the same figure appears in later filings, making the dataset represent what was reported at the time rather than a later restatement.