use bitcoin::blockdata::transaction::Transaction;
use bitcoin::blockdata::script::Script;
use bitcoin::blockdata::constants::genesis_block;
-use bitcoin::util::hash::Sha256dHash;
+use bitcoin::util::hash::{BitcoinHash, Sha256dHash};
use bitcoin::network::constants::Network;
-use bitcoin::network::serialize::BitcoinHash;
use util::logger::Logger;