<human>:  Please explain the concept of blockchain technology.
<bot>: Blockchain technology is a distributed digital ledger of transactions that is secured using cryptography. It is a type of database system that is made up of blocks of data that are constantly growing in size and are secured and linked using cryptographic principles. Data stored in a blockchain database is immutable, meaning that it cannot be edited or removed once it has been committed to the database. Blockchain technology is most commonly associated with the cryptocurrency Bitcoin, but it can also be used for other types of digital and financial transactions. The technology provides a secure way for individuals and organizations to track and transfer data over the internet, in a transparent and decentralized manner.