public void add(Block block)
{
if (Chain.Count > 0)
{
block.PrevBlockHash = Chain.Last().Pow;
block.BlockNumber = (Chain.Count + 1).ToString();
}
else
{
block.PrevBlockHash = EMPTY_HASH;
block.BlockNumber = "1";
}
block.Difficulty = DEFAULT_DIFFICALTY;
block.recalculate();
Chain.Add(block);
}
