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Signa publishes research that measures, against independent ground truth, the accuracy of the data and computations the API serves. Every study follows the same discipline: samples are frozen before any comparison runs, every number carries its sample size, every disagreement is investigated and classified by cause, and defects found by a study are published with results from before and after the fix. Nothing in these reports has to be taken on faith. The rules under test are inspectable through the API, and the measurements are reproducible with an API key.

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Reports

Deadlines You Can Docket Against

Computed trademark deadlines verified against register records across ten offices: 99.7 percent of comparable records either match the office-published date exactly or are explicitly declared as needing the office’s date, with every disagreement investigated and classified.
Further studies (coverage and freshness, classification accuracy, entity resolution) are in preparation.