Disable PoW check in testnet on demand

README.md

@@ -1,4 +1,4 @@
-# BitcoinZ 2.1.0 | MANDO
+# BitcoinZ 2.1.0 | MANDO | TU:2
 **Keep running wallet to strengthen the BitcoinZ network. Backup your wallet in many locations & keep your coins wallet offline.**
 
 ### Ports:

src/chainparams.cpp

@@ -1,6 +1,6 @@
 // Copyright (c) 2010 Satoshi Nakamoto
 // Copyright (c) 2009-2014 The Bitcoin Core developers
-// Copyright (c) 2020 The BitcoinZ community
+// Copyright (c) 2022 The BitcoinZ community
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or https://www.opensource.org/licenses/mit-license.php .
 
@@ -365,18 +365,19 @@ class CTestNetParams : public CChainParams {
             Consensus::NetworkUpgrade::NO_ACTIVATION_HEIGHT;
         consensus.vUpgrades[Consensus::UPGRADE_OVERWINTER].nProtocolVersion = 770006;
         consensus.vUpgrades[Consensus::UPGRADE_OVERWINTER].nActivationHeight = 1500;
-        //consensus.vUpgrades[Consensus::UPGRADE_OVERWINTER].hashActivationBlock =
-        //    uint256S("0001bd0b788908fe416ac3c2909735bccb8c79b591e76a359ec657a97fb48a6d");
+        consensus.vUpgrades[Consensus::UPGRADE_OVERWINTER].hashActivationBlock =
+            uint256S("0002577930e1d2af95e6bb1ed894110874c961afb57db5fdfed63b2a7b4379e3");
         consensus.vUpgrades[Consensus::UPGRADE_SAPLING].nProtocolVersion = 770006;
         consensus.vUpgrades[Consensus::UPGRADE_SAPLING].nActivationHeight = 1500;
-        //consensus.vUpgrades[Consensus::UPGRADE_SAPLING].hashActivationBlock =
-        //    uint256S("0001bd0b788908fe416ac3c2909735bccb8c79b591e76a359ec657a97fb48a6d");
+        consensus.vUpgrades[Consensus::UPGRADE_SAPLING].hashActivationBlock =
+            uint256S("0002577930e1d2af95e6bb1ed894110874c961afb57db5fdfed63b2a7b4379e3");
         consensus.vUpgrades[Consensus::UPGRADE_BLOSSOM].nProtocolVersion = 770009;
-        consensus.vUpgrades[Consensus::UPGRADE_BLOSSOM].nActivationHeight = Consensus::NetworkUpgrade::NO_ACTIVATION_HEIGHT;
+        consensus.vUpgrades[Consensus::UPGRADE_BLOSSOM].nActivationHeight =
+            Consensus::NetworkUpgrade::NO_ACTIVATION_HEIGHT;
 
         // The best chain should have at least this much work.
-        //consensus.nMinimumChainWork = uint256S("000000000000000000000000000000000000000000000000000000000470fb4c");
-        consensus.nMinimumChainWork = uint256S("0x00");
+        consensus.nMinimumChainWork = uint256S("0000000000000000000000000000000000000000000000000000000000010894"); // blk 2100
+        //consensus.nMinimumChainWork = uint256S("0x00");
 
         pchMessageStart[0] = 0xfa;
         pchMessageStart[1] = 0x1a;
@@ -409,7 +410,7 @@ class CTestNetParams : public CChainParams {
 
         vFixedSeeds.clear();
         vSeeds.clear();
-        //vSeeds.push_back(CDNSSeedData("6be074a62041bb2bee54f8c48ef41bac55c44b0e1f49aef7c319d992844667c2.TZB", "test.seed.btcz.app"));
+        vSeeds.push_back(CDNSSeedData("6be074a62041bb2bee54f8c48ef41bac55c44b0e1f49aef7c319d992844667c2.TZB", "test.seed.btcz.app"));
         //vSeeds.push_back(CDNSSeedData("rotorproject.org", "test-dnsseed.rotorproject.org")); // Zclassic
 
         // guarantees the first 2 characters, when base58 encoded, are "tm"
@@ -440,6 +441,7 @@ class CTestNetParams : public CChainParams {
         fRequireStandard = true;
         fMineBlocksOnDemand = false;
         fTestnetToBeDeprecatedFieldRPC = true;
+        bDisablePoWcheck = true;
 
 
         checkpointData = (CCheckpointData) {
@@ -453,10 +455,11 @@ class CTestNetParams : public CChainParams {
         // Hardcoded fallback value for the Sprout shielded value pool balance
         // for nodes that have not reindexed since the introduction of monitoring
         // in #2795.
-        //nSproutValuePoolCheckpointHeight = 21000;
-        //nSproutValuePoolCheckpointBalance = 825099960000;
+        nSproutValuePoolCheckpointHeight = 2100;
+        nSproutValuePoolCheckpointBalance = 0;
         fZIP209Enabled = true;
         //hashSproutValuePoolCheckpointBlock = uint256S("00360d4e02fbea84aa687722584e24bdc94dd7b768f35b095d453d81c0469d3a");
+        hashSproutValuePoolCheckpointBlock = uint256S("0000000000000000000000000000000000000000000000000000000000010894");
 
         // Founders reward script expects a vector of 2-of-3 multisig addresses
         vCommunityFeeAddress = {

src/chainparams.h

@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2014 The Bitcoin Core developers
-// Copyright (c) 2020 The BitcoinZ community
+// Copyright (c) 2022 The BitcoinZ community
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or https://www.opensource.org/licenses/mit-license.php .
 
@@ -103,6 +103,9 @@ class CChainParams
     int64_t MaxTipAge() const { return nMaxTipAge; }
     int64_t PruneAfterHeight() const { return nPruneAfterHeight; }
 
+    /**   */
+    bool DisablePoWcheck() const { return bDisablePoWcheck; }
+
     EHparameters eh_epoch_1_params() const { return eh_epoch_1; }
     EHparameters eh_epoch_2_params() const { return eh_epoch_2; }
     unsigned long eh_epoch_1_end() const { return eh_epoch_1_endblock; }
@@ -168,6 +171,8 @@ class CChainParams
     uint256 hashSproutValuePoolCheckpointBlock;
     bool fZIP209Enabled = false;
     int vRollingCheckpointStartHeight;
+
+    bool bDisablePoWcheck = false;
 };
 
 /**

src/consensus/params.h

@@ -1,5 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2014 The Bitcoin Core developers
+// Copyright (c) 2022 The BitcoinZ community
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or https://www.opensource.org/licenses/mit-license.php .
 
@@ -74,8 +75,8 @@ struct NetworkUpgrade {
 };
 
 /** ZIP208 block target interval in seconds. */
-static const unsigned int PRE_BLOSSOM_POW_TARGET_SPACING = 5;
-static const unsigned int POST_BLOSSOM_POW_TARGET_SPACING = 5;
+static const unsigned int PRE_BLOSSOM_POW_TARGET_SPACING = 20;
+static const unsigned int POST_BLOSSOM_POW_TARGET_SPACING = 20;
 static_assert(POST_BLOSSOM_POW_TARGET_SPACING <= PRE_BLOSSOM_POW_TARGET_SPACING, "Blossom target spacing must be less than pre-Blossom target spacing.");
 static const unsigned int PRE_BLOSSOM_HALVING_INTERVAL = 840000;
 static const unsigned int PRE_BLOSSOM_REGTEST_HALVING_INTERVAL = 150;

src/init.cpp

@@ -1,5 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2014 The Bitcoin Core developers
+// Copyright (c) 2022 The BitcoinZ community
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or https://www.opensource.org/licenses/mit-license.php .
 
@@ -464,6 +465,7 @@ std::string HelpMessage(HelpMessageMode mode)
     strUsage += HelpMessageOpt("-debug=<category>", strprintf(_("Output debugging information (default: %u, supplying <category> is optional)"), 0) + ". " +
         _("If <category> is not supplied or if <category> = 1, output all debugging information.") + " " + _("<category> can be:") + " " + debugCategories + ".");
     strUsage += HelpMessageOpt("-experimentalfeatures", _("Enable use of experimental features"));
+    strUsage += HelpMessageOpt("-DisablePoWcheck", _("TESTNET ONLY ! Disable the PoW check and stop validation the block headers."));
     strUsage += HelpMessageOpt("-help-debug", _("Show all debugging options (usage: --help -help-debug)"));
     strUsage += HelpMessageOpt("-logips", strprintf(_("Include IP addresses in debug output (default: %u)"), 0));
     strUsage += HelpMessageOpt("-logtimestamps", strprintf(_("Prepend debug output with timestamp (default: %u)"), 1));
@@ -837,6 +839,9 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
     // ********************************************************* Step 2: parameter interactions
     const CChainParams& chainparams = Params();
 
+    // For testnet only. Disable the PoW check to be able to reindex after params changes.
+    fDisablePoWcheck = GetBoolArg("-DisablePoWcheck", false);
+
     // Set this early so that experimental features are correctly enabled/disabled
     fExperimentalMode = GetBoolArg("-experimentalfeatures", false);
 

src/init.h

@@ -1,5 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2014 The Bitcoin Core developers
+// Copyright (c) 2022 The BitcoinZ community
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or https://www.opensource.org/licenses/mit-license.php .
 

src/main.cpp

@@ -1,5 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2014 The Bitcoin Core developers
+// Copyright (c) 2022 The BitcoinZ community
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or https://www.opensource.org/licenses/mit-license.php .
 
@@ -79,6 +80,7 @@ bool fCoinbaseEnforcedProtectionEnabled = true;
 size_t nCoinCacheUsage = 5000 * 300;
 uint64_t nPruneTarget = 0;
 bool fAlerts = DEFAULT_ALERTS;
+bool fDisablePoWcheck = false;
 /* If the tip is older than this (in seconds), the node is considered to be in initial block download.
  */
 int64_t nMaxTipAge = DEFAULT_MAX_TIP_AGE;
@@ -3971,10 +3973,20 @@ bool ContextualCheckBlockHeader(
                 REJECT_INVALID,"bad-equihash-solution-size");
     }
 
+
+
+
     // Check proof of work
-    if (block.nBits != GetNextWorkRequired(pindexPrev, &block, consensusParams))
-        return state.DoS(100, error("%s: incorrect proof of work", __func__),
-                         REJECT_INVALID, "bad-diffbits");
+    if (block.nBits != GetNextWorkRequired(pindexPrev, &block, consensusParams) ) {
+
+      // Always check in mainet. Can only be disabled if specified.
+      if (!(chainParams.DisablePoWcheck() && fDisablePoWcheck) || chainParams.NetworkIDString() == "main" ) {
+        return state.DoS(100, error("%s: incorrect proof of work", __func__), REJECT_INVALID, "bad-diffbits");
+      }
+    }
+
+
+
 
     // Check timestamp against prev
     if (block.GetBlockTime() <= pindexPrev->GetMedianTimePast())

src/main.h

@@ -1,5 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2014 The Bitcoin Core developers
+// Copyright (c) 2022 The BitcoinZ community
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or https://www.opensource.org/licenses/mit-license.php .
 
@@ -138,6 +139,7 @@ extern bool fImporting;
 extern bool fReindex;
 extern int nScriptCheckThreads;
 extern bool fTxIndex;
+extern bool fDisablePoWcheck;
 
 // START insightexplorer
 extern bool fInsightExplorer;

src/metrics.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 The BitcoinZ community
+// Copyright (c) 2022 The BitcoinZ community
 // Copyright (c) 2016 The Zcash developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or https://www.opensource.org/licenses/mit-license.php .
@@ -310,7 +310,9 @@ int printMetrics(size_t cols, bool mining)
     lines += (strDuration.size() / cols);
 
     int validatedCount = transactionsValidated.get();
-    if (validatedCount > 1) {
+    if (GetBoolArg("-DisablePoWcheck", false) && GetBoolArg("-testnet", false)) { // Disable validation if testnet and defined
+      std::cout << "- " << _("PoW check is disabled! You not validating any transaction!") << std::endl;
+    } else if (validatedCount > 1) {
       std::cout << "- " << strprintf(_("You have validated %d transactions!"), validatedCount) << std::endl;
     } else if (validatedCount == 1) {
       std::cout << "- " << _("You have validated a transaction!") << std::endl;
@@ -472,40 +474,13 @@ void ThreadShowMetricsScreen()
         // Thank you text
         //std::cout << _("BTCZ Node Version 2.1.0 (MANDO) - Protocol 770009") << std::endl;
         std::cout << strprintf(_("\n"
-        // "\n           |~"
-        // "\n           |.---.           █▄▄ █ ▀█▀ █▀▀ █▀█ █ █▄░█ ▀█"
-        // "\n          .'_____`. /\\      █▄█ █ ░█░ █▄▄ █▄█ █ █░▀█ █▄"
-        // "\n          |~xxxxx~| ||"
-        // "\n          |_  #  _| ||      █▄█ █▀█ █░█ █▀█   █▀▀ █ █▄░█ ▄▀█ █▄░█ █▀▀ █ ▄▀█ █░░ "
-        // "\n     .------`-#-'-----.     ░█░ █▄█ █▄█ █▀▄   █▀░ █ █░▀█ █▀█ █░▀█ █▄▄ █ █▀█ █▄▄ "
-        // "\n    (___|\\_________/|_.`."
-        // "\n     /  | _________ | | |   █▀▀ █▀█ █▀▀ █▀▀ █▀▄ █▀█ █▀▄▀█"
-        // "\n    /   |/   _|_   \\| | |   █▀░ █▀▄ ██▄ ██▄ █▄▀ █▄█ █░▀░█"
-        // "\n   /   /X|  __|__  |/ `.|"
-        // "\n  (  --< \\/    _\\//|_ |`."
-        // "\n  `.    ~----.-~=====,:======="
-        // "\n    ~-._____/___:__(``/| |"
-        // "\n      |    |      XX|~ | |"
-        // "\n       \\__/======| /|  `.|"
-        // "\n       |_\\|\\    /|/_|    )"
-        // "\n       |_   \\__/   _| .-'    %s "
-        // "\n       | \\ .'||`. / |(_|"
-        // "\n       |  ||.'`.||  |   )    BTCZ Node Version 2.1.0 "
-        // "\n       |  `'|  |`'  |  /     Protocol 770009"
-        // "\n       |    |  |    |\\/      MANDO"
-        // "\n"
-        // "\n"
-        // "\n  In decentralization we trust."
-        // "\n  You're helping to strengthen the network and contributing to a social good :)"
-        // "\n\n"
-
         "\n           |~"
         "\n           |.---.              __ _ _____ ___ __  _ __  _ ___   "
         "\n          .'_____`. /\\        |  \\ |_   _/ _//__\\| |  \\| |_  | "
         "\n          |~xxxxx~| ||        | -< | | || \\_| \\/ | | | ' |/ /  "
         "\n          |_  #  _| ||        |__/_|_|_|_\\__/\\__/|_|_|\\__|___| "
         "\n     .------`-#-'-----.     "
-        "\n    (___|\\_________/|_.`.     BTCZ Node Version 2.1.0 (MANDO)"
+        "\n    (___|\\_________/|_.`.     BTCZ Node Version 2.1.0 (MANDO) | TU:2"
         "\n     /  | _________ | | |     Protocol 770009"
         "\n    /   |/   _|_   \\| | |     Network: %s "
         "\n"