public uint256 GetHash()
{
uint256 h = null;
var hashes = _Hashes;
if (hashes != null)
{
h = hashes[0];
}
if (h != null)
{
return(h);
}
using (var hs = CreateHashStream())
{
var stream = new BitcoinStream(hs, true);
stream.SerializationTypeScope(SerializationType.Hash);
this.ReadWrite(stream);
h = hs.GetHash();
}
hashes = _Hashes;
if (hashes != null)
{
hashes[0] = h;
}
return(h);
}
