@Override
  public int hashCode() {
    return Objects.hash(nonce, balance, storageRoot, codeHash);
  }
The hash of the root of the storage trie associated with this account.

@return the hash of the root node of the storage trie.
ethereum/core/src/main/java/org/hyperledger/besu/ethereum/trie/common/PmtStateTrieAccountValue.java