private Block CreateBlock() { var transaction = new Transaction { Id = $"{Guid.NewGuid()}" }; var blockObject = new BlockObject { Data = transaction }; blockObject.Hash = blockObject.ToHashBytes(HashProvider); var block = new Block { Nonce = 1, PreviousHash = "rosebud".Sha256(), MerkleRootHash = HashProvider.DoubleHash(blockObject.Hash), Timestamp = (uint)DateTimeOffset.UtcNow.ToUnixTimeSeconds(), Objects = new List <BlockObject> { blockObject } }; block.MerkleRootHash = block.ComputeMerkleRoot(HashProvider); block.Hash = block.ToHashBytes(HashProvider); return(block); }