/// <inheritdoc/>
public bool VerifySignature(UnspentOutputs coin, Transaction txTo, int txToInN, ScriptVerify flagScriptVerify)
{
Guard.NotNull(coin, nameof(coin));
Guard.NotNull(txTo, nameof(txTo));
if (txToInN < 0 || txToInN >= txTo.Inputs.Count)
{
return(false);
}
TxIn input = txTo.Inputs[txToInN];
if (input.PrevOut.N >= coin.Outputs.Length)
{
this.logger.LogTrace("(-)[OUTPUT_INCORRECT_LENGTH]");
return(false);
}
if (input.PrevOut.Hash != coin.TransactionId)
{
this.logger.LogTrace("(-)[INCORRECT_TX]");
return(false);
}
TxOut output = coin.Outputs[input.PrevOut.N];
if (output == null)
{
this.logger.LogTrace("(-)[OUTPUT_NOT_FOUND]");
return(false);
}
var txData = new PrecomputedTransactionData(txTo);
var checker = new TransactionChecker(txTo, txToInN, output.Value, txData);
var ctx = new ScriptEvaluationContext(this.chain.Network)
{
ScriptVerify = flagScriptVerify
};
bool res = ctx.VerifyScript(input.ScriptSig, output.ScriptPubKey, checker);
return(res);
}
/// <inheritdoc/>
public void CheckProofOfStake(PosRuleContext context, ChainedHeader prevChainedHeader, BlockStake prevBlockStake, Transaction transaction, uint headerBits)
{
Guard.NotNull(context, nameof(context));
Guard.NotNull(prevChainedHeader, nameof(prevChainedHeader));
Guard.NotNull(prevBlockStake, nameof(prevBlockStake));
Guard.NotNull(transaction, nameof(transaction));
if (!transaction.IsCoinStake)
{
this.logger.LogTrace("(-)[NO_COINSTAKE]");
ConsensusErrors.NonCoinstake.Throw();
}
TxIn txIn = transaction.Inputs[0];
UnspentOutputs prevUtxo = context.UnspentOutputSet.AccessCoins(txIn.PrevOut.Hash);
if (prevUtxo == null)
{
this.logger.LogTrace("(-)[PREV_UTXO_IS_NULL]");
ConsensusErrors.ReadTxPrevFailed.Throw();
}
// Verify signature.
if (!this.VerifySignature(prevUtxo, transaction, 0, ScriptVerify.None))
{
this.logger.LogTrace("(-)[BAD_SIGNATURE]");
ConsensusErrors.CoinstakeVerifySignatureFailed.Throw();
}
// Min age requirement.
if (this.IsConfirmedInNPrevBlocks(prevUtxo, prevChainedHeader, this.GetTargetDepthRequired(prevChainedHeader)))
{
this.logger.LogTrace("(-)[BAD_STAKE_DEPTH]");
ConsensusErrors.InvalidStakeDepth.Throw();
}
if (!this.CheckStakeKernelHash(context, headerBits, prevBlockStake.StakeModifierV2, prevUtxo, txIn.PrevOut, transaction.Time))
{
this.logger.LogTrace("(-)[INVALID_STAKE_HASH_TARGET]");
ConsensusErrors.StakeHashInvalidTarget.Throw();
}
}
public void CheckProofOfStake(ContextInformation context, ChainedBlock pindexPrev, BlockStake prevBlockStake, Transaction tx, uint headerBits)
{
this.logger.LogTrace("({0}:'{1}',{2}.{3}:'{4}',{5}:0x{6:X})", nameof(pindexPrev), pindexPrev.HashBlock, nameof(prevBlockStake), nameof(prevBlockStake.HashProof), prevBlockStake.HashProof, nameof(headerBits), headerBits);
if (!tx.IsCoinStake)
{
this.logger.LogTrace("(-)[NO_COINSTAKE]");
ConsensusErrors.NonCoinstake.Throw();
}
// Kernel (input 0) must match the stake hash target per coin age (nBits).
TxIn txIn = tx.Inputs[0];
// First try finding the previous transaction in database.
FetchCoinsResponse coins = this.coinView.FetchCoinsAsync(new[] { txIn.PrevOut.Hash }).GetAwaiter().GetResult();
if ((coins == null) || (coins.UnspentOutputs.Length != 1))
{
ConsensusErrors.ReadTxPrevFailed.Throw();
}
ChainedBlock prevBlock = this.chain.GetBlock(coins.BlockHash);
UnspentOutputs prevUtxo = coins.UnspentOutputs[0];
// Verify signature.
if (!this.VerifySignature(prevUtxo, tx, 0, ScriptVerify.None))
{
this.logger.LogTrace("(-)[BAD_SIGNATURE]");
ConsensusErrors.CoinstakeVerifySignatureFailed.Throw();
}
// Min age requirement.
if (this.IsConfirmedInNPrevBlocks(prevUtxo, pindexPrev, this.consensusOptions.StakeMinConfirmations - 1))
{
this.logger.LogTrace("(-)[BAD_STAKE_DEPTH]");
ConsensusErrors.InvalidStakeDepth.Throw();
}
this.CheckStakeKernelHash(context, pindexPrev, headerBits, prevBlock.Header.Time, prevBlockStake, prevUtxo, txIn.PrevOut, tx.Time);
this.logger.LogTrace("(-)[OK]");
}
/// <inheritdoc/>
public void CheckProofOfStake(PosRuleContext context, ChainedHeader prevChainedHeader, BlockStake prevBlockStake, Transaction transaction, uint headerBits)
{
this.logger.LogTrace("({0}:'{1}',{2}.{3}:'{4}',{5}:0x{6:X})", nameof(prevChainedHeader), prevChainedHeader.HashBlock, nameof(prevBlockStake), nameof(prevBlockStake.HashProof), prevBlockStake.HashProof, nameof(headerBits), headerBits);
if (!transaction.IsCoinStake)
{
this.logger.LogTrace("(-)[NO_COINSTAKE]");
ConsensusErrors.NonCoinstake.Throw();
}
TxIn txIn = transaction.Inputs[0];
// First try finding the previous transaction in database.
FetchCoinsResponse coins = this.coinView.FetchCoinsAsync(new[] { txIn.PrevOut.Hash }).GetAwaiter().GetResult();
if ((coins == null) || (coins.UnspentOutputs.Length != 1))
ConsensusErrors.ReadTxPrevFailed.Throw();
UnspentOutputs prevUtxo = coins.UnspentOutputs[0];
if (prevUtxo == null)
{
this.logger.LogTrace("(-)[PREV_UTXO_IS_NULL]");
ConsensusErrors.ReadTxPrevFailed.Throw();
}
// Verify signature.
if (!this.VerifySignature(prevUtxo, transaction, 0, ScriptVerify.None))
{
this.logger.LogTrace("(-)[BAD_SIGNATURE]");
ConsensusErrors.CoinstakeVerifySignatureFailed.Throw();
}
// Min age requirement.
if (this.IsConfirmedInNPrevBlocks(prevUtxo, prevChainedHeader, this.consensusOptions.GetStakeMinConfirmations(prevChainedHeader.Height + 1, this.network) - 1))
{
this.logger.LogTrace("(-)[BAD_STAKE_DEPTH]");
ConsensusErrors.InvalidStakeDepth.Throw();
}
this.CheckStakeKernelHash(context, headerBits, prevBlockStake, prevUtxo, txIn.PrevOut, transaction.Time);
this.logger.LogTrace("(-)[OK]");
}
/// <inheritdoc/>
public void CheckKernel(PosRuleContext context, ChainedHeader prevChainedHeader, uint headerBits, long transactionTime, OutPoint prevout)
{
this.logger.LogTrace("({0}:'{1}',{2}:0x{3:X},{4}:{5},{6}:'{7}.{8}')", nameof(prevChainedHeader), prevChainedHeader,
nameof(headerBits), headerBits, nameof(transactionTime), transactionTime, nameof(prevout), prevout.Hash, prevout.N);
FetchCoinsResponse coins = this.coinView.FetchCoinsAsync(new[] { prevout.Hash }).GetAwaiter().GetResult();
if ((coins == null) || (coins.UnspentOutputs.Length != 1))
{
this.logger.LogTrace("(-)[READ_PREV_TX_FAILED]");
ConsensusErrors.ReadTxPrevFailed.Throw();
}
ChainedHeader prevBlock = this.chain.GetBlock(coins.BlockHash);
if (prevBlock == null)
{
this.logger.LogTrace("(-)[REORG]");
ConsensusErrors.ReadTxPrevFailed.Throw();
}
UnspentOutputs prevUtxo = coins.UnspentOutputs[0];
if (this.IsConfirmedInNPrevBlocks(prevUtxo, prevChainedHeader, ((PosConsensusOptions)this.network.Consensus.Options).GetStakeMinConfirmations(prevChainedHeader.Height + 1, this.network) - 1))
{
this.logger.LogTrace("(-)[LOW_COIN_AGE]");
ConsensusErrors.InvalidStakeDepth.Throw();
}
BlockStake prevBlockStake = this.stakeChain.Get(prevChainedHeader.HashBlock);
if (prevBlockStake == null)
{
this.logger.LogTrace("(-)[BAD_STAKE_BLOCK]");
ConsensusErrors.BadStakeBlock.Throw();
}
this.CheckStakeKernelHash(context, headerBits, prevBlockStake, prevUtxo, prevout, (uint)transactionTime);
}
/// <summary>
/// Verifies transaction's signature.
/// </summary>
/// <param name="coin">UTXO that is spent in the transaction.</param>
/// <param name="txTo">Transaction.</param>
/// <param name="txToInN">Index of the transaction's input.</param>
/// <param name="flagScriptVerify">Script verification flags.</param>
/// <returns><c>true</c> if signature is valid.</returns>
private bool VerifySignature(UnspentOutputs coin, Transaction txTo, int txToInN, ScriptVerify flagScriptVerify)
{
this.logger.LogTrace("({0}:'{1}/{2}',{3}:{4},{5}:{6})", nameof(coin), coin.TransactionId, coin.Height, nameof(txToInN), txToInN, nameof(flagScriptVerify), flagScriptVerify);
TxIn input = txTo.Inputs[txToInN];
if (input.PrevOut.N >= coin.Outputs.Length)
return false;
if (input.PrevOut.Hash != coin.TransactionId)
return false;
TxOut output = coin.Outputs[input.PrevOut.N];
var txData = new PrecomputedTransactionData(txTo);
var checker = new TransactionChecker(txTo, txToInN, output.Value, txData);
var ctx = new ScriptEvaluationContext(this.chain.Network) { ScriptVerify = flagScriptVerify };
bool res = ctx.VerifyScript(input.ScriptSig, output.ScriptPubKey, checker);
this.logger.LogTrace("(-):{0}", res);
return res;
}
private bool VerifySignature(UnspentOutputs txFrom, Transaction txTo, int txToInN, ScriptVerify flagScriptVerify)
{
var input = txTo.Inputs[txToInN];
if (input.PrevOut.N >= txFrom._Outputs.Length)
{
return(false);
}
if (input.PrevOut.Hash != txFrom.TransactionId)
{
return(false);
}
var output = txFrom._Outputs[input.PrevOut.N];
var txData = new PrecomputedTransactionData(txTo);
var checker = new TransactionChecker(txTo, txToInN, output.Value, txData);
var ctx = new ScriptEvaluationContext {
ScriptVerify = flagScriptVerify
};
return(ctx.VerifyScript(input.ScriptSig, output.ScriptPubKey, checker));
}
/// <summary>
/// Checks that the stake kernel hash satisfies the target difficulty.
/// </summary>
/// <param name="context">Staking context.</param>
/// <param name="headerBits">Chained block's header bits, which define the difficulty target.</param>
/// <param name="prevBlockStake">Information about previous staked block.</param>
/// <param name="stakingCoins">Coins that participate in staking.</param>
/// <param name="prevout">Information about transaction id and index.</param>
/// <param name="transactionTime">Transaction time.</param>
/// <remarks>
/// Coinstake must meet hash target according to the protocol:
/// kernel (input 0) must meet the formula
/// <c>hash(stakeModifierV2 + stakingCoins.Time + prevout.Hash + prevout.N + transactionTime) < target * weight</c>.
/// This ensures that the chance of getting a coinstake is proportional to the amount of coins one owns.
/// <para>
/// The reason this hash is chosen is the following:
/// <list type="number">
/// <item><paramref name="prevBlockStake.StakeModifierV2"/>: Scrambles computation to make it very difficult to precompute future proof-of-stake.</item>
/// <item><paramref name="stakingCoins.Time"/>: Time of the coinstake UTXO. Slightly scrambles computation.</item>
/// <item><paramref name="prevout.Hash"/> Hash of stakingCoins UTXO, to reduce the chance of nodes generating coinstake at the same time.</item>
/// <item><paramref name="prevout.N"/>: Output number of stakingCoins UTXO, to reduce the chance of nodes generating coinstake at the same time.</item>
/// <item><paramref name="transactionTime"/>: Timestamp of the coinstake transaction.</item>
/// </list>
/// Block or transaction tx hash should not be used here as they can be generated in vast
/// quantities so as to generate blocks faster, degrading the system back into a proof-of-work situation.
/// </para>
/// </remarks>
/// <exception cref="ConsensusErrors.StakeTimeViolation">Thrown in case transaction time is lower than it's own UTXO timestamp.</exception>
/// <exception cref="ConsensusErrors.StakeHashInvalidTarget">Thrown in case PoS hash doesn't meet target protocol.</exception>
private void CheckStakeKernelHash(PosRuleContext context, uint headerBits, BlockStake prevBlockStake, UnspentOutputs stakingCoins,
OutPoint prevout, uint transactionTime)
{
this.logger.LogTrace("({0}:{1:X},{2}.{3}:'{4}',{5}:'{6}/{7}',{8}:'{9}',{10}:{11})",
nameof(headerBits), headerBits, nameof(prevBlockStake), nameof(prevBlockStake.HashProof), prevBlockStake.HashProof, nameof(stakingCoins),
stakingCoins.TransactionId, stakingCoins.Height, nameof(prevout), prevout, nameof(transactionTime), transactionTime);
if (transactionTime < stakingCoins.Time)
{
this.logger.LogTrace("Coinstake transaction timestamp {0} is lower than it's own UTXO timestamp {1}.", transactionTime, stakingCoins.Time);
this.logger.LogTrace("(-)[BAD_STAKE_TIME]");
ConsensusErrors.StakeTimeViolation.Throw();
}
// Base target.
BigInteger target = new Target(headerBits).ToBigInteger();
// TODO: Investigate:
// The POS protocol should probably put a limit on the max amount that can be staked
// not a hard limit but a limit that allow any amount to be staked with a max weight value.
// the max weight should not exceed the max uint256 array size (array size = 32).
// Weighted target.
long valueIn = stakingCoins.Outputs[prevout.N].Value.Satoshi;
BigInteger weight = BigInteger.ValueOf(valueIn);
BigInteger weightedTarget = target.Multiply(weight);
context.TargetProofOfStake = ToUInt256(weightedTarget);
this.logger.LogTrace("POS target is '{0}', weighted target for {1} coins is '{2}'.", ToUInt256(target), valueIn, context.TargetProofOfStake);
uint256 stakeModifierV2 = prevBlockStake.StakeModifierV2;
// Calculate hash.
using (var ms = new MemoryStream())
{
var serializer = new BitcoinStream(ms, true);
serializer.ReadWrite(stakeModifierV2);
serializer.ReadWrite(stakingCoins.Time);
serializer.ReadWrite(prevout.Hash);
serializer.ReadWrite(prevout.N);
serializer.ReadWrite(transactionTime);
context.HashProofOfStake = Hashes.Hash256(ms.ToArray());
}
this.logger.LogTrace("Stake modifier V2 is '{0}', hash POS is '{1}'.", stakeModifierV2, context.HashProofOfStake);
// Now check if proof-of-stake hash meets target protocol.
var hashProofOfStakeTarget = new BigInteger(1, context.HashProofOfStake.ToBytes(false));
if (hashProofOfStakeTarget.CompareTo(weightedTarget) > 0)
{
this.logger.LogTrace("(-)[TARGET_MISSED]");
ConsensusErrors.StakeHashInvalidTarget.Throw();
}
this.logger.LogTrace("(-)[OK]");
}
// Stratis kernel protocol
// coinstake must meet hash target according to the protocol:
// kernel (input 0) must meet the formula
// hash(nStakeModifier + txPrev.block.nTime + txPrev.nTime + txPrev.vout.hash + txPrev.vout.n + nTime) < bnTarget * nWeight
// this ensures that the chance of getting a coinstake is proportional to the
// amount of coins one owns.
// The reason this hash is chosen is the following:
// nStakeModifier: scrambles computation to make it very difficult to precompute
// future proof-of-stake
// txPrev.block.nTime: prevent nodes from guessing a good timestamp to
// generate transaction for future advantage,
// obsolete since v3
// txPrev.nTime: slightly scrambles computation
// txPrev.vout.hash: hash of txPrev, to reduce the chance of nodes
// generating coinstake at the same time
// txPrev.vout.n: output number of txPrev, to reduce the chance of nodes
// generating coinstake at the same time
// nTime: current timestamp
// block/tx hash should not be used here as they can be generated in vast
// quantities so as to generate blocks faster, degrading the system back into
// a proof-of-work situation.
//
private void CheckStakeKernelHashV2(ContextInformation context, ChainedBlock pindexPrev, uint nBits,
uint nTimeBlockFrom,
BlockStake prevBlockStake, UnspentOutputs txPrev, OutPoint prevout, uint nTimeTx)
{
if (nTimeTx < txPrev.Time)
{
ConsensusErrors.StakeTimeViolation.Throw();
}
// Base target
var bnTarget = new Target(nBits).ToBigInteger();
// TODO: Investigate:
// The POS protocol should probably put a limit on the max amount that can be staked
// not a hard limit but a limit that allow any amount to be staked with a max weight value.
// the max weight should not exceed the max uint256 array size (array siez = 32)
// Weighted target
var nValueIn = txPrev._Outputs[prevout.N].Value.Satoshi;
var bnWeight = BigInteger.ValueOf(nValueIn);
bnTarget = bnTarget.Multiply(bnWeight);
context.Stake.TargetProofOfStake = ToUInt256(bnTarget);
var nStakeModifier = prevBlockStake.StakeModifier; //pindexPrev.Header.BlockStake.StakeModifier;
uint256 bnStakeModifierV2 = prevBlockStake.StakeModifierV2; //pindexPrev.Header.BlockStake.StakeModifierV2;
int nStakeModifierHeight = pindexPrev.Height;
var nStakeModifierTime = pindexPrev.Header.Time;
// Calculate hash
using (var ms = new MemoryStream())
{
var serializer = new BitcoinStream(ms, true);
if (IsProtocolV3((int)nTimeTx))
{
serializer.ReadWrite(bnStakeModifierV2);
}
else
{
serializer.ReadWrite(nStakeModifier);
serializer.ReadWrite(nTimeBlockFrom);
}
serializer.ReadWrite(txPrev.Time);
serializer.ReadWrite(prevout.Hash);
serializer.ReadWrite(prevout.N);
serializer.ReadWrite(nTimeTx);
context.Stake.HashProofOfStake = Hashes.Hash256(ms.ToArray());
}
//LogPrintf("CheckStakeKernelHash() : using modifier 0x%016x at height=%d timestamp=%s for block from timestamp=%s\n",
// nStakeModifier, nStakeModifierHeight,
// DateTimeStrFormat(nStakeModifierTime),
// DateTimeStrFormat(nTimeBlockFrom));
//LogPrintf("CheckStakeKernelHash() : check modifier=0x%016x nTimeBlockFrom=%u nTimeTxPrev=%u nPrevout=%u nTimeTx=%u hashProof=%s\n",
// nStakeModifier,
// nTimeBlockFrom, txPrev.nTime, prevout.n, nTimeTx,
// hashProofOfStake.ToString());
// Now check if proof-of-stake hash meets target protocol
var hashProofOfStakeTarget = new BigInteger(1, context.Stake.HashProofOfStake.ToBytes(false));
if (hashProofOfStakeTarget.CompareTo(bnTarget) > 0)
{
ConsensusErrors.StakeHashInvalidTarget.Throw();
}
// if (fDebug && !fPrintProofOfStake)
// {
// LogPrintf("CheckStakeKernelHash() : using modifier 0x%016x at height=%d timestamp=%s for block from timestamp=%s\n",
// nStakeModifier, nStakeModifierHeight,
// DateTimeStrFormat(nStakeModifierTime),
// DateTimeStrFormat(nTimeBlockFrom));
// LogPrintf("CheckStakeKernelHash() : pass modifier=0x%016x nTimeBlockFrom=%u nTimeTxPrev=%u nPrevout=%u nTimeTx=%u hashProof=%s\n",
// nStakeModifier,
// nTimeBlockFrom, txPrev.nTime, prevout.n, nTimeTx,
// hashProofOfStake.ToString());
// }
}
/// <inheritdoc />
public virtual void ExecuteBlock(RuleContext context, TaskScheduler taskScheduler = null)
{
this.logger.LogTrace("()");
Block block = context.BlockValidationContext.Block;
ChainedBlock index = context.BlockValidationContext.ChainedBlock;
DeploymentFlags flags = context.Flags;
UnspentOutputSet view = context.Set;
this.PerformanceCounter.AddProcessedBlocks(1);
taskScheduler = taskScheduler ?? TaskScheduler.Default;
if (!context.SkipValidation)
{
if (flags.EnforceBIP30)
{
foreach (Transaction tx in block.Transactions)
{
UnspentOutputs coins = view.AccessCoins(tx.GetHash());
if ((coins != null) && !coins.IsPrunable)
{
this.logger.LogTrace("(-)[BAD_TX_BIP_30]");
ConsensusErrors.BadTransactionBIP30.Throw();
}
}
}
}
else
{
this.logger.LogTrace("BIP30 validation skipped for checkpointed block at height {0}.", index.Height);
}
long sigOpsCost = 0;
Money fees = Money.Zero;
var checkInputs = new List <Task <bool> >();
for (int txIndex = 0; txIndex < block.Transactions.Count; txIndex++)
{
this.PerformanceCounter.AddProcessedTransactions(1);
Transaction tx = block.Transactions[txIndex];
if (!context.SkipValidation)
{
if (!tx.IsCoinBase && (!context.IsPoS || (context.IsPoS && !tx.IsCoinStake)))
{
int[] prevheights;
if (!view.HaveInputs(tx))
{
this.logger.LogTrace("(-)[BAD_TX_NO_INPUT]");
ConsensusErrors.BadTransactionMissingInput.Throw();
}
prevheights = new int[tx.Inputs.Count];
// Check that transaction is BIP68 final.
// BIP68 lock checks (as opposed to nLockTime checks) must
// be in ConnectBlock because they require the UTXO set.
for (int j = 0; j < tx.Inputs.Count; j++)
{
prevheights[j] = (int)view.AccessCoins(tx.Inputs[j].PrevOut.Hash).Height;
}
if (!tx.CheckSequenceLocks(prevheights, index, flags.LockTimeFlags))
{
this.logger.LogTrace("(-)[BAD_TX_NON_FINAL]");
ConsensusErrors.BadTransactionNonFinal.Throw();
}
}
// GetTransactionSignatureOperationCost counts 3 types of sigops:
// * legacy (always),
// * p2sh (when P2SH enabled in flags and excludes coinbase),
// * witness (when witness enabled in flags and excludes coinbase).
sigOpsCost += this.GetTransactionSignatureOperationCost(tx, view, flags);
if (sigOpsCost > this.ConsensusOptions.MaxBlockSigopsCost)
{
ConsensusErrors.BadBlockSigOps.Throw();
}
// TODO: Simplify this condition.
if (!tx.IsCoinBase && (!context.IsPoS || (context.IsPoS && !tx.IsCoinStake)))
{
this.CheckInputs(tx, view, index.Height);
fees += view.GetValueIn(tx) - tx.TotalOut;
var txData = new PrecomputedTransactionData(tx);
for (int inputIndex = 0; inputIndex < tx.Inputs.Count; inputIndex++)
{
this.PerformanceCounter.AddProcessedInputs(1);
TxIn input = tx.Inputs[inputIndex];
int inputIndexCopy = inputIndex;
TxOut txout = view.GetOutputFor(input);
var checkInput = new Task <bool>(() =>
{
var checker = new TransactionChecker(tx, inputIndexCopy, txout.Value, txData);
var ctx = new ScriptEvaluationContext();
ctx.ScriptVerify = flags.ScriptFlags;
return(ctx.VerifyScript(input.ScriptSig, txout.ScriptPubKey, checker));
});
checkInput.Start(taskScheduler);
checkInputs.Add(checkInput);
}
}
}
this.UpdateCoinView(context, tx);
}
if (!context.SkipValidation)
{
this.CheckBlockReward(context, fees, index.Height, block);
bool passed = checkInputs.All(c => c.GetAwaiter().GetResult());
if (!passed)
{
this.logger.LogTrace("(-)[BAD_TX_SCRIPT]");
ConsensusErrors.BadTransactionScriptError.Throw();
}
}
else
{
this.logger.LogTrace("BIP68, SigOp cost, and block reward validation skipped for block at height {0}.", index.Height);
}
this.logger.LogTrace("(-)");
}
