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Restrict powLimit due to difficulty averaging

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This commit is contained in:
Jack Grigg
2016-09-07 08:17:43 +12:00
parent 7b173bd80f
commit 3e24a533f5
1 changed files with 8 additions and 3 deletions
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11
src/chainparams.cpp
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@@ -28,6 +28,8 @@ using namespace std;
* + Contains no strange transactions * + Contains no strange transactions
*/ */
const arith_uint256 maxUint = UintToArith256(uint256S("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"));
class CMainParams : public CChainParams { class CMainParams : public CChainParams {
public: public:
CMainParams() { CMainParams() {
@@ -40,8 +42,9 @@ public:
consensus.nMajorityWindow = 4000; consensus.nMajorityWindow = 4000;
// TODO generate harder genesis block // TODO generate harder genesis block
//consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"); //consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"); consensus.powLimit = uint256S("0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f");
consensus.nPowAveragingWindow = 17; consensus.nPowAveragingWindow = 17;
assert(maxUint/UintToArith256(consensus.powLimit) >= consensus.nPowAveragingWindow);
consensus.nPowMaxAdjustDown = 32; // 32% adjustment down consensus.nPowMaxAdjustDown = 32; // 32% adjustment down
consensus.nPowMaxAdjustUp = 16; // 16% adjustment up consensus.nPowMaxAdjustUp = 16; // 16% adjustment up
consensus.nPowTargetSpacing = 2.5 * 60; consensus.nPowTargetSpacing = 2.5 * 60;
@@ -149,7 +152,8 @@ public:
consensus.nMajorityEnforceBlockUpgrade = 51; consensus.nMajorityEnforceBlockUpgrade = 51;
consensus.nMajorityRejectBlockOutdated = 75; consensus.nMajorityRejectBlockOutdated = 75;
consensus.nMajorityWindow = 400; consensus.nMajorityWindow = 400;
consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"); consensus.powLimit = uint256S("0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f");
assert(maxUint/UintToArith256(consensus.powLimit) >= consensus.nPowAveragingWindow);
consensus.fPowAllowMinDifficultyBlocks = true; consensus.fPowAllowMinDifficultyBlocks = true;
pchMessageStart[0] = 0x26; pchMessageStart[0] = 0x26;
pchMessageStart[1] = 0xA7; pchMessageStart[1] = 0xA7;
@@ -219,7 +223,8 @@ public:
consensus.nMajorityEnforceBlockUpgrade = 750; consensus.nMajorityEnforceBlockUpgrade = 750;
consensus.nMajorityRejectBlockOutdated = 950; consensus.nMajorityRejectBlockOutdated = 950;
consensus.nMajorityWindow = 1000; consensus.nMajorityWindow = 1000;
consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"); consensus.powLimit = uint256S("0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f");
assert(maxUint/UintToArith256(consensus.powLimit) >= consensus.nPowAveragingWindow);
consensus.nPowMaxAdjustDown = 0; // Turn off adjustment down consensus.nPowMaxAdjustDown = 0; // Turn off adjustment down
consensus.nPowMaxAdjustUp = 0; // Turn off adjustment up consensus.nPowMaxAdjustUp = 0; // Turn off adjustment up
pchMessageStart[0] = 0xaa; pchMessageStart[0] = 0xaa;