Block Hash

A unique string of alphanumeric characters that represents the bit-string (i.e., hash value) generated by applying a cryptographic hash function to a block’s data (including transactions, timestamp, previous block hash, and other relevant block data). The block hash serves to identify the block and link it to the previous block in the chain through inclusion of the previous block’s hash. If any data within a block is altered, it would generate a completely different hash value, thereby helping maintain the blockchain’s immutability and chronological order.