$$ \newcommand \Genesis {\mathrm{Genesis}} \newcommand \GenesisID {\Genesis{\mathrm{ID}}} \newcommand \Hash {\mathrm{Hash}} \newcommand \GenesisHash {\Genesis\Hash} $$

Genesis

Genesis Identifier

The genesis identifier is a short string that identifies an instance of a Ledger \( L \).

The genesis identifier of a valid block is the identifier of the block in the previous round. In other words, \( \GenesisID_{r+1} = \GenesisID_{r} \).

Genesis Hash

The genesis hash is a cryptographic hash of the genesis configuration, used to unambiguously identify an instance of the Ledger \( L \).

The genesis hash is set in the genesis block (or the block at which an upgrade to a protocol supporting \( \GenesisHash \) occurs), and MUST be preserved identically in all subsequent blocks.