private static void PrintChain(BlockChain blockChain)
{
Console.WriteLine("----------------- Start Blockchain -----------------");
foreach (Block block in blockChain.Chain)
{
Console.WriteLine();
Console.WriteLine("------ Start Block ------");
Console.WriteLine("Hash: {0}", block.Hash);
Console.WriteLine("Previous Hash: {0}", block.PreviousHash);
Console.WriteLine("--- Start Transactions ---");
foreach (Transaction transaction in block.Transactions)
{
Console.WriteLine("From: {0} To {1} Amount {2}", transaction.From, transaction.To, transaction.Amount);
}
Console.WriteLine("--- End Transactions ---");
Console.WriteLine("------ End Block ------");
}
Console.WriteLine("----------------- End Blockchain -----------------");
}
static void Main()
{
const string minerAddress = "miner1";
const string user1Address = "A";
const string user2Address = "B";
BlockChain blockChain = new BlockChain(proofOfWorkDifficulty: 2, miningReward: 10);
blockChain.CreateTransaction(new Transaction(user1Address, user2Address, 200));
blockChain.CreateTransaction(new Transaction(user2Address, user1Address, 10));
Console.WriteLine("Is valid: {0}", blockChain.IsValidChain());
Console.WriteLine();
Console.WriteLine("--------- Start mining ---------");
blockChain.MineBlock(minerAddress);
Console.WriteLine("BALANCE of the miner: {0}", blockChain.GetBalance(minerAddress));
blockChain.CreateTransaction(new Transaction(user1Address, user2Address, 5));
Console.WriteLine();
Console.WriteLine("--------- Start mining ---------");
blockChain.MineBlock(minerAddress);
Console.WriteLine("BALANCE of the miner: {0}", blockChain.GetBalance(minerAddress));
Console.WriteLine();
PrintChain(blockChain);
Console.WriteLine();
Console.WriteLine("Hacking the blockchain...");
blockChain.Chain[1].Transactions = new List <Transaction> {
new Transaction(user1Address, minerAddress, 150)
};
Console.WriteLine("Is valid: {0}", blockChain.IsValidChain());
Console.ReadKey();
}
