| | 13 | In simple words, a blockchain is "a continuously growing list of records linked and secured using cryptography." Essentially a chain of blocks, each block contains transactions made between entities and information such as a timestamp and a hash pointer to the previous block. Because hash functions produce unique hashes for the most part, we know that there could have only be one specific block the hash pointer was pointing to, and this type of chaining prevents people from easily changing the important contents (transactions) recorded by the blockchain. |
