BitSharp.Core.Rules.CoreRules.PostValidateBlock C# (CSharp) Method

        public void PostValidateBlock(Chain newChain, object finalTally)
        {
            var chainedHeader = newChain.LastBlock;
            var blockTally = (BlockTally)finalTally;

            // ensure there is at least 1 transaction
            if (blockTally.TxCount == 0)
                throw new ValidationException(chainedHeader.Hash,
                    $"Failing block {chainedHeader.Hash} at height {chainedHeader.Height}: Zero transactions present");

            // ensure fees aren't negative (should be caught earlier)
            if (blockTally.TotalFees < 0)
                throw new ValidationException(chainedHeader.Hash);

            // calculate the expected reward in coinbase
            var subsidy = (ulong)(50 * SATOSHI_PER_BTC);
            if (chainedHeader.Height / 210000 <= 32)
                subsidy /= (ulong)Math.Pow(2, chainedHeader.Height / 210000);

            // calculate the expected reward in coinbase
            var expectedReward = subsidy + (ulong)blockTally.TotalFees;

            // calculate the actual reward in coinbase
            var actualReward = blockTally.CoinbaseTx.Transaction.Outputs.Sum(x => x.Value);

            // ensure coinbase has correct reward
            if (actualReward > expectedReward)
            {
                throw new ValidationException(chainedHeader.Hash,
                    $"Failing block {chainedHeader.Hash} at height {chainedHeader.Height}: Coinbase value is greater than reward + fees");
            }
        }