Blockchain technology is an advanced database mechanism that enables the open exchange of information within a business network. A blockchain database stores data in blocks that are linked together in a chain. The data is chronologically consistent because the chain cannot be deleted or modified without consensus from the network. As a result, you can use blockchain technology to create an immutable or perpetual ledger for tracking orders, payments, invoices, and other transactions. The system has built-in mechanisms that prevent unauthorized entry of transactions and create consistency in the overall view of those transactions.