bool CheckStakeKernelHash(SegWitCoin segWitCoin)
{
BigInteger value = BigInteger.ValueOf(segWitCoin.UtxoValue);
BigInteger weightedTarget = this.PosV3.TargetAsBigInteger.Multiply(value);
uint256 kernelHash;
using (var ms = new MemoryStream())
{
var serializer = new BitcoinStream(ms, true);
serializer.ReadWrite(this.PosV3.StakeModifierV2);
if (C.Network.CreateTransaction() is PosTransaction)
{
//serializer.ReadWrite(stakingCoin.Time); // be sure this is uint
var oldFunnyTime = this.nodeServices.CoinView.FetchCoins(new[] { segWitCoin.UtxoTxHash }).UnspentOutputs[0].Time;
serializer.ReadWrite(oldFunnyTime); // it should be block time, but due to a bug in ppcoin we need oldFunnyTime
}
serializer.ReadWrite(segWitCoin.UtxoTxHash);
serializer.ReadWrite(segWitCoin.UtxoTxN);
serializer.ReadWrite((uint)this.PosV3.CurrentBlockTime); // be sure this is uint
kernelHash = Hashes.Hash256(ms.ToArray());
}
var hash = new BigInteger(1, kernelHash.ToBytes(false));
return(hash.CompareTo(weightedTarget) <= 0);
}
void CreateNextBlock(BlockTemplate blockTemplate, List <SegWitCoin> kernelCoins)
{
SegWitCoin kernelCoin = kernelCoins[0];
foreach (var coin in kernelCoins)
{
if (coin.UtxoValue < kernelCoin.UtxoValue)
{
kernelCoin = coin;
}
}
var newBlockHeight = this.nodeServices.ConsensusManager.Tip.Height + 1;
var totalReward = blockTemplate.TotalFee + this.nodeServices.PosCoinviewRule.GetProofOfStakeReward(newBlockHeight);
blockTemplate.Block.Header.Time = (uint)this.PosV3.CurrentBlockTime;
Transaction tx = CoinstakeTransactionService.CreateAndSignCoinstakeTransaction(kernelCoin, totalReward.Satoshi, (uint)this.PosV3.CurrentBlockTime, this.passphrase, out Key blockSignatureKey);
if (tx is PosTransaction posTransaction)
{
((PosTransaction)blockTemplate.Block.Transactions[0]).Time = (uint)this.PosV3.CurrentBlockTime;
}
blockTemplate.Block.Transactions.Insert(1, tx);
this.nodeServices.BlockProvider.BlockModified(this.nodeServices.ConsensusManager.Tip, blockTemplate.Block);
ECDSASignature signature = blockSignatureKey.Sign(blockTemplate.Block.GetHash());
((PosBlock)blockTemplate.Block).BlockSignature = new BlockSignature {
Signature = signature.ToDER()
};
ChainedHeader chainedHeader;
try
{
chainedHeader = this.nodeServices.ConsensusManager.BlockMinedAsync(blockTemplate.Block).GetAwaiter().GetResult();
}
catch (Exception)
{
this.Status.BlocksNotAccepted++;
throw;
}
if (chainedHeader == null)
{
this.Status.BlocksNotAccepted += 1;
return;
}
if (this.LastStakedBlock.BlockTime != 0)
{
this.Status.ActualTime = (int)(DateTimeOffset.UtcNow.ToUnixTimeSeconds() - this.LastStakedBlock.BlockTime);
}
else
{
this.Status.ActualTime = (int)(DateTimeOffset.UtcNow.ToUnixTimeSeconds() - this.Status.StartedUtc);
}
this.LastStakedBlock.Hash = chainedHeader.HashBlock;
this.LastStakedBlock.Height = chainedHeader.Height;
this.LastStakedBlock.BlockSize = chainedHeader.Block.BlockSize ?? -1;
this.LastStakedBlock.TxId = chainedHeader.Block.Transactions[1].GetHash();
this.LastStakedBlock.Transactions = chainedHeader.Block.Transactions.Count;
this.LastStakedBlock.TotalReward = totalReward;
this.LastStakedBlock.KernelAddress = kernelCoin.SegWitAddress.Address;
this.LastStakedBlock.WeightUsed = kernelCoin.UtxoValue;
this.LastStakedBlock.TotalComputeTimeMs = this.stopwatch.ElapsedMilliseconds;
this.LastStakedBlock.BlockTime = this.PosV3.CurrentBlockTime;
this.Status.BlocksAccepted += 1;
Log.Logger.LogInformation(
$"Congratulations, your staked a new block at height {newBlockHeight} and received a total reward of {totalReward} {C.Network.CoinTicker}.");
}
