private static void MakeProofOfWork(BlocksRepository <Block> blocksRepository, HashGenerator hashGenerator)
{
var firstBlock = blocksRepository.First();
var existsNounce = firstBlock.Nounce;
hashGenerator.HashWithProofOfWork(firstBlock);
ChangeDataInBlock(0, existsNounce.ToString(), firstBlock.Nounce.ToString());
}
static void Main(string[] args)
{
var blocksRepository = new BlocksRepository <Block>();
var blockChain = new BlockChain(proofOfWorkDifficulty: 4,
durationBetweenBlocksCreation: TimeSpan.FromMinutes(1),
blocksRepository: blocksRepository);
System.Console.WriteLine("append data...");
blockChain.Add(new Data("doctor A gave drug B to patient C"));
blockChain.Add(new Data("doctor A gave drug B to patient D"));
blockChain.Add(new Data("doctor B gave drug B to patient E"));
System.Console.WriteLine("wait to the block to be closed...");
Thread.Sleep(TimeSpan.FromMinutes(2));
System.Console.WriteLine("append more data (for the next block)...");
blockChain.Add(new Data("doctor A gave drug B to patient C"));
blockChain.Add(new Data("doctor A gave drug B to patient D"));
blockChain.Add(new Data("doctor B gave drug B to patient E"));
System.Console.WriteLine("wait to the block to be closed...");
Thread.Sleep(TimeSpan.FromMinutes(2));
System.Console.WriteLine("verify the integrity (that the data has not been alerted)...");
VerifyIntegrity(blockChain);
System.Console.WriteLine("change data...");
ChangeDataInBlock(0, "patient C", "patient V");
System.Console.WriteLine("verify that the lack of the integrity has been identified...");
VerifyBrokenIntegrity(blockChain);
System.Console.WriteLine("hash the updated block with PoW...");
var hashGenerator = new HashGenerator(proofOfWorkDifficulty: 4);
MakeProofOfWork(blocksRepository, hashGenerator);
System.Console.WriteLine("verify that the lack of the integrity has been identified...");
VerifyBrokenIntegrity(blockChain);
}
