Amazon Quantum Ledger Database (QLDB)

Amazon Quantum Ledger Database (QLDB) is a purpose-built and fully managed ledger database service that maintains an accurate history of changes made to an application for business and regulatory purposes. It works on blockchain technology where multiple parties are working on the same data, and we need to keep track of transactions made by every party and verify the data’s authenticity. This data can never be overwritten or deleted, allowing us to backtrack all the changes on a transaction.