Abstract: A secured auditing system using verified hash algorithms is provided. The system integrates with existing databases (e.g., appointment databases) to receive and store auditable data in a system database. The system generates a hash (i.e., a digital signature) for each piece of auditable data received and stores the hash in the system database and on a decentralized blockchain platform for comparative auditing. The system is not confined to one blockchain platform and can interact with any existing blockchain or distributed ledger technology as it evolves.