Blockchain

A distributed digital ledger technology that stores and records transactions in a chain of cryptographically linked blocks. The blockchain is maintained by a peer-to-peer network of nodes, where each node locally runs a software application that enables it to communicate with other nodes in the network, validate and hold a copy of the ledger, and receive the opportunity to create new blocks. Importantly, blockchains are not controlled by any single authority, and instead distribute authority to anyone who participates.