What is a Genesis Block?
Genesis block refers to the first block of a given cryptocurrency that was mined or the origin block of a private network created on a blockchain platform. It is hard-coded in the cryptocurrency or application’s software, and it contains all information needed for network configuration and searching for network peers.
The genesis block is block 0 or block 1, and all successive blocks are attached to the genesis block. Because there is no preceding block in the chain before the genesis block, it is the base to which other blocks are added to form a blockchain.