Coverage proof
The seal on every page shows what was reconciled and what failed; when a check could not run for a reason we can state, it names that reason — and never a fraction whose denominator hides the abstention. These are the numbers behind that seal.
How much of a filing we can check
Measured from the production archive as of October 25, 2026, recomputed every time the daily round writes a fresh artifact — not a fixed constant.
Pre-XBRL vs. 2009 onward
Structured XBRL data became mandatory in stages starting in 2009 — years before that are not a company's fault, and this split is why the archive-wide median looks the way it does. "·" marks a figure not available in our data.
Checks reconciled, across the archive
Out of a maximum of 95 checks a company could possibly reconcile. "·" marks a figure not available in our data.
Company size, not quality of filing
Abstention correlates with company size (r = -0.408, n = 4,628 companies with proven USD revenue): the larger the company, the fewer checks it needs to abstain from.
A company's "XBRL era" is the span of fiscal years in which the SEC required the structured data our checks read — years before it existed are not a company's fault, and the era-restricted median is how we avoid counting them against one.