private byte[] GetPayload()
{
return(BitConverter.GetBytes(ProtocolVersion)
.Concat(BitConverter.GetBytes(Services))
.Concat(BitConverter.GetBytes(Timestamp))
.Concat(RecipientAddress.ToBytes())
.Concat(SenderAddress.ToBytes())
.Concat(BitConverter.GetBytes(Nonce))
.Concat(UserAgentLength.ToBytes())
.Concat(Encoding.ASCII.GetBytes(UserAgent))
.Concat(BitConverter.GetBytes(StartHeight))
.Concat(Relay ? new byte[] { 0x01 } : new byte[] { 0x00 })
.ToArray());
}
