Developer builds daily snapshot system for 211,000 Korean companies due to missing API history

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A developer created a system that records daily status snapshots of 211,243 Korean companies through the National Tax Service's public API. This initiative addresses the API's limitation of providing only current business registration status without historical data. The automated job runs daily, stores current statuses, and generates change files highlighting companies that became active, suspended, or closed. The developer emphasizes this data cannot be purchased elsewhere and provides valuable insights about business continuity and risk assessment.

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