<human>:  Can you explain the concept of blockchain to me?
<bot>: Blockchain is a type of distributed ledger technology (DLT) that utilizes an ever-growing chain of encrypted, digital records, or blocks, that are linked together. Each block of information contains a cryptographic hash of the previous block, a timestamp, and transaction data that is stored in a decentralized network. This data can include any information such as financial or medical records, making it a secure and efficient way to store and access data. The technology also allows for peer-to-peer transactions without the need for a central authority, making it more secure than traditional networks.