A Merkle tree is an important piece in Bitcoin's puzzle. It's a fingerprint of the entire list of transactions, thereby enabling a user to verify whether or not a transaction has been included in the block.

In testparams.cpp, look for the following line:

assert( genesis.hashMerkleRoot == uint256s('merkle hash value');

Replace the Merkle hash with the hash calculated by GenesisH0. To check the genesis block Merkle root, you can print its hash root:

printf ("Readercoin hashMerkleRoot:% s  n", genesis.hashMerkleRoot.ToString (). c_str ());

All set? We have finished defining the new genesis block.