public static SlimBlockHeader ToSlimBlockHeader(this Block block)
{
var slimBlockHeader = new SlimBlockHeader
{
Version = block.Header.Version,
HashPrevBlock = block.Header.HashPrevBlock.ToBytes(),
Bits = block.Header.Bits,
MerkleRoot = MerkleRoot.Build(block.Transactions.Select(x => x.GetHash().ToBytes()).ToList()),
Timestamp = (uint)block.Header.BlockTime.ToUnixTimeSeconds(),
Nonce = 0,
};
return(slimBlockHeader);
}
static byte[] BlockWitnessMerkleRoot(List <Transaction> payloadTransactions)
{
var leaves = new List <byte[]>();
// The witness hash of the coinbase transaction is 0.
leaves.Add(new byte[32]);
foreach (Transaction tx in payloadTransactions)
{
leaves.Add(tx.GetWitHash().ToBytes());
}
// A witness root hash is calculated with all those wtxid as leaves, in a way similar to the hashMerkleRoot in the block header.
return(MerkleRoot.Build(leaves));
}
public static void UpdateHeaderHashMerkleRoot(this SlimBlock slimBlock)
{
var txHashes = new List <byte[]>();
txHashes.Add(slimBlock.CoinbaseTransaction.GetHash().ToBytes());
if (slimBlock.IsProofOfStake)
{
txHashes.Add(slimBlock.CoinstakeTransaction.GetHash().ToBytes());
}
foreach (var transaction in slimBlock.PayloadTransactions)
{
txHashes.Add(transaction.GetHash().ToBytes());
}
var hashMerkleRoot = MerkleRoot.Build(txHashes);
slimBlock.SlimBlockHeader.MerkleRoot = hashMerkleRoot;
slimBlock.SlimBlockHeader.Data = slimBlock.SlimBlockHeader.SerializeTo80Bytes();
}