No dataset upload.
Import, preparation, search, analysis and prediction run locally. Automatic error reports are enabled by default, can be disabled and are used only to diagnose and fix bugs. Before it is sent, each report is encrypted and contains exactly the protocol schema version, the Equarith version, platform and architecture, exception type and structured stack frames without any message; it never contains datasets, projects, formulas, results, checkpoints, files, paths, messages, logs, or installation or license identifiers. The reverse proxy processes the IP address transiently to enforce rate limits; the application keeps only an ephemeral salted fingerprint, and neither is persisted or logged on these routes. Aggregates are retained for 90 days after the last occurrence; a scheduled purge deletes expired aggregates, and an administrator can delete them sooner.