static void Main(string[] args)
{
Introduction intro = new Introduction();
SpendBitcoin spendBitcoin = new SpendBitcoin();
ProofOfOwnership proofOfOwnership = new ProofOfOwnership();
Keys keys = new Keys();
// intro.Intro();
// spendBitcoin.Spend();
// proofOfOwnership.Proof();
keys.AddEntropy();
keys.KeyDerivationFunction();
}