- let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ let header = BlockHeader {
+ version: 0x20000000,
+ prev_blockhash: BlockHash::all_zeros(),
+ merkle_root: TxMerkleNode::all_zeros(),
+ time: 42,
+ bits: 42,
+ nonce: 42
+ };