def chain_head_state_root(self):
"""
Return the state hash of the head block of the current chain.
FIXME - for DAG use real merkle root state
"""
chain_head = self.chain_head
if chain_head is not None:
return MerkleDatabase.get_real_merkle_root(self._global_state_db)
#return chain_head.state_root_hash
return INIT_ROOT_KEY
def get_merkle_root():
return MerkleDatabase.get_real_merkle_root(self._database)