let prev_blockhash = node.best_block.block_hash();
let height = node.best_block.height() + 1;
let header = BlockHeader { version: 0x20000000, prev_blockhash, merkle_root: Default::default(), time: height, bits: 42, nonce: 42 };
let prev_blockhash = node.best_block.block_hash();
let height = node.best_block.height() + 1;
let header = BlockHeader { version: 0x20000000, prev_blockhash, merkle_root: Default::default(), time: height, bits: 42, nonce: 42 };