public NBitcoin.Target NBitcoinCalculateNextWorkRequired(BlockHeader header, uint lastRetargetTime)
{
NBitcoin.Consensus consensus = NBitcoin.Network.Main.Consensus;
// Limit adjustment step
var nActualTimespan = TimeSpan.FromSeconds(header.TimeStamp - lastRetargetTime);
if (nActualTimespan < TimeSpan.FromTicks(consensus.PowTargetTimespan.Ticks / 4))
{
nActualTimespan = TimeSpan.FromTicks(consensus.PowTargetTimespan.Ticks / 4);
}
if (nActualTimespan > TimeSpan.FromTicks(consensus.PowTargetTimespan.Ticks * 4))
{
nActualTimespan = TimeSpan.FromTicks(consensus.PowTargetTimespan.Ticks * 4);
}
// Retarget
var bnNew = new NBitcoin.Target(header.Bits).ToBigInteger();
uint cmp = new NBitcoin.Target(bnNew).ToCompact();
bnNew = bnNew * (new BigInteger((long)nActualTimespan.TotalSeconds));
bnNew = bnNew / (new BigInteger((long)consensus.PowTargetTimespan.TotalSeconds));
var newTarget = new NBitcoin.Target(bnNew);
if (newTarget > consensus.PowLimit)
{
newTarget = consensus.PowLimit;
}
return(newTarget);
}
public static NBitcoin.Network Main()
{
if (_mainnet != null)
{
return(_mainnet);
}
NBitcoin.NetworkBuilder builder = new NBitcoin.NetworkBuilder();
var graviumMainConsensus = new NBitcoin.Consensus
{
SubsidyHalvingInterval = 210000,
MajorityEnforceBlockUpgrade = 750,
MajorityRejectBlockOutdated = 950,
MajorityWindow = 1000,
BIP34Hash = null,
PowLimit = new NBitcoin.Target(new NBitcoin.uint256("00000fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")),
PowTargetTimespan = TimeSpan.FromSeconds(14 * 24 * 60 * 60), // two weeks, 20160 minutes
PowTargetSpacing = TimeSpan.FromSeconds(10 * 60), // 10 minutes
PowAllowMinDifficultyBlocks = false,
PowNoRetargeting = false,
RuleChangeActivationThreshold = 1916, // 95% of 2016
MinerConfirmationWindow = 2016, // nPowTargetTimespan / nPowTargetSpacing
CoinbaseMaturity = 100,
LitecoinWorkCalculation = false
};
graviumMainConsensus.BIP34Hash = graviumMainConsensus.HashGenesisBlock;
_mainnet = builder.SetConsensus(graviumMainConsensus)
.SetBase58Bytes(NBitcoin.Base58Type.PUBKEY_ADDRESS, new byte[] { (75) }) // GRV / X
.SetBase58Bytes(NBitcoin.Base58Type.SCRIPT_ADDRESS, new byte[] { (125) })
.SetBase58Bytes(NBitcoin.Base58Type.SECRET_KEY, new byte[] { (75 + 128) }) // GRV
.SetBase58Bytes(NBitcoin.Base58Type.ENCRYPTED_SECRET_KEY_NO_EC, new byte[] { 0x01, 0x42 })
.SetBase58Bytes(NBitcoin.Base58Type.ENCRYPTED_SECRET_KEY_EC, new byte[] { 0x01, 0x43 })
.SetBase58Bytes(NBitcoin.Base58Type.EXT_PUBLIC_KEY, new byte[] { (0x04), (0x88), (0xB2), (0x1E) })
.SetBase58Bytes(NBitcoin.Base58Type.EXT_SECRET_KEY, new byte[] { (0x04), (0x88), (0xAD), (0xE4) })
.SetBase58Bytes(NBitcoin.Base58Type.PASSPHRASE_CODE, new byte[] { 0x2C, 0xE9, 0xB3, 0xE1, 0xFF, 0x39, 0xE2 })
.SetBase58Bytes(NBitcoin.Base58Type.CONFIRMATION_CODE, new byte[] { 0x64, 0x3B, 0xF6, 0xA8, 0x9A })
.SetBase58Bytes(NBitcoin.Base58Type.STEALTH_ADDRESS, new byte[] { 0x2a })
.SetBase58Bytes(NBitcoin.Base58Type.ASSET_ID, new byte[] { 23 })
.SetBase58Bytes(NBitcoin.Base58Type.COLORED_ADDRESS, new byte[] { 0x13 })
.SetPort(0)
.SetRPCPort(0)
.SetName("grv-main")
.AddAlias("grv-mainnet")
.BuildAndRegister();
return(_mainnet);
}
