hush/src/chainparams.cpp

// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2014 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include "main.h"
#include "crypto/equihash.h"

#include "util.h"
#include "utilstrencodings.h"

#include <assert.h>

#include <boost/assign/list_of.hpp>

#include "base58.h"

using namespace std;

#include "chainparamsseeds.h"

/**
 * Main network
 */
/**
 * What makes a good checkpoint block?
 * + Is surrounded by blocks with reasonable timestamps
 *   (no blocks before with a timestamp after, none after with
 *    timestamp before)
 * + Contains no strange transactions
 */

const arith_uint256 maxUint = UintToArith256(uint256S("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"));

class CMainParams : public CChainParams {
public:
    CMainParams() {
        strNetworkID = "main";
        consensus.fCoinbaseMustBeProtected = true;
        consensus.nSubsidySlowStartInterval = 20000;
        consensus.nSubsidyHalvingInterval = 840000;
        consensus.nMajorityEnforceBlockUpgrade = 750;
        consensus.nMajorityRejectBlockOutdated = 950;
        consensus.nMajorityWindow = 4000;
        consensus.powLimit = uint256S("07ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
        consensus.nPowAveragingWindow = 17;
        assert(maxUint/UintToArith256(consensus.powLimit) >= consensus.nPowAveragingWindow);
        consensus.nPowMaxAdjustDown = 32; // 32% adjustment down
        consensus.nPowMaxAdjustUp = 16; // 16% adjustment up
        consensus.nPowTargetSpacing = 2.5 * 60;
        consensus.fPowAllowMinDifficultyBlocks = false;
        /**
         * The message start string is designed to be unlikely to occur in normal data.
         * The characters are rarely used upper ASCII, not valid as UTF-8, and produce
         * a large 32-bit integer with any alignment.
         */
        pchMessageStart[0] = 0xf9;
        pchMessageStart[1] = 0xf3;
        pchMessageStart[2] = 0xac;
        pchMessageStart[3] = 0xab;
        vAlertPubKey = ParseHex("04b7ecf0baa90495ceb4e4090f6b2fd37eec1e9c85fac68a487f3ce11589692e4a317479316ee814e066638e1db54e37a10689b70286e6315b1087b6615d179264");
        nDefaultPort = 8233;
        nMinerThreads = 0;
        nMaxTipAge = 24 * 60 * 60;
        nPruneAfterHeight = 100000;
        const size_t N = 200, K = 9;
        BOOST_STATIC_ASSERT(equihash_parameters_acceptable(N, K));
        nEquihashN = N;
        nEquihashK = K;

        /**
         * Build the genesis block. Note that the output of its generation
         * transaction cannot be spent since it did not originally exist in the
         * database (and is in any case of zero value).
         */
        const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
        CMutableTransaction txNew;
        txNew.vin.resize(1);
        txNew.vout.resize(1);
        txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
        txNew.vout[0].nValue = 0;
        txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
        genesis.vtx.push_back(txNew);
        genesis.hashPrevBlock.SetNull();
        genesis.hashMerkleRoot = genesis.BuildMerkleTree();
        genesis.nVersion = 4;
        genesis.nTime    = 1477539945;
        genesis.nBits    = 0x2007ffff;
        genesis.nNonce   = uint256S("0x0000000000000000000000000000000000000000000000000000000000000004");
        genesis.nSolution = ParseHex("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");

        consensus.hashGenesisBlock = genesis.GetHash();
        assert(consensus.hashGenesisBlock == uint256S("0x055e4f392d6d63715db7b42e70a43c1faf99d5959a8e03ada11ac34a03e78667"));
        assert(genesis.hashMerkleRoot == uint256S("0xdc6c10ad2a26613ae9b8a156ed9ca15e3e355a994a7e32cd7a4c3d7a478f57d2"));

        vFixedSeeds.clear();
        vSeeds.clear();
        vSeeds.push_back(CDNSSeedData("z.cash", "dnsseed.z.cash")); // Zcash
        vSeeds.push_back(CDNSSeedData("str4d.xyz", "dnsseed.str4d.xyz")); // @str4d
        vSeeds.push_back(CDNSSeedData("znodes.org", "dnsseed.znodes.org")); // @bitcartel

        // guarantees the first 2 characters, when base58 encoded, are "t1"
        base58Prefixes[PUBKEY_ADDRESS]     = {0x1C,0xB8};
        // guarantees the first 2 characters, when base58 encoded, are "t3"
        base58Prefixes[SCRIPT_ADDRESS]     = {0x1C,0xBD};
        // the first character, when base58 encoded, is "5" or "K" or "L" (as in Bitcoin)
        base58Prefixes[SECRET_KEY]         = {0x80};
        // do not rely on these BIP32 prefixes; they are not specified and may change
        base58Prefixes[EXT_PUBLIC_KEY]     = {0x04,0x88,0xB2,0x1E};
        base58Prefixes[EXT_SECRET_KEY]     = {0x04,0x88,0xAD,0xE4};
        // guarantees the first 2 characters, when base58 encoded, are "zc"
        base58Prefixes[ZCPAYMENT_ADDRRESS] = {0x16,0x9A};
        // guarantees the first 2 characters, when base58 encoded, are "SK"
        base58Prefixes[ZCSPENDING_KEY]     = {0xAB,0x36};

        vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_main, pnSeed6_main + ARRAYLEN(pnSeed6_main));

        fRequireRPCPassword = true;
        fMiningRequiresPeers = true;
        fDefaultConsistencyChecks = false;
        fRequireStandard = true;
        fMineBlocksOnDemand = false;
        fTestnetToBeDeprecatedFieldRPC = false;

        checkpointData = (Checkpoints::CCheckpointData) {
            boost::assign::map_list_of
            ( 0, consensus.hashGenesisBlock),
            genesis.nTime, // * UNIX timestamp of last checkpoint block
            0,   // * total number of transactions between genesis and last checkpoint
                 //   (the tx=... number in the SetBestChain debug.log lines)
            0    // * estimated number of transactions per day after checkpoint
        };

        // Founders reward script expects a vector of 2-of-3 multisig addresses
        vFoundersRewardAddress = {
            "t3Vz22vK5z2LcKEdg16Yv4FFneEL1zg9ojd", /* main-index: 0*/
            "t3cL9AucCajm3HXDhb5jBnJK2vapVoXsop3", /* main-index: 1*/
            "t3fqvkzrrNaMcamkQMwAyHRjfDdM2xQvDTR", /* main-index: 2*/
            "t3TgZ9ZT2CTSK44AnUPi6qeNaHa2eC7pUyF", /* main-index: 3*/
            "t3SpkcPQPfuRYHsP5vz3Pv86PgKo5m9KVmx", /* main-index: 4*/
            "t3Xt4oQMRPagwbpQqkgAViQgtST4VoSWR6S", /* main-index: 5*/
            "t3ayBkZ4w6kKXynwoHZFUSSgXRKtogTXNgb", /* main-index: 6*/
            "t3adJBQuaa21u7NxbR8YMzp3km3TbSZ4MGB", /* main-index: 7*/
            "t3K4aLYagSSBySdrfAGGeUd5H9z5Qvz88t2", /* main-index: 8*/
            "t3RYnsc5nhEvKiva3ZPhfRSk7eyh1CrA6Rk", /* main-index: 9*/
            "t3Ut4KUq2ZSMTPNE67pBU5LqYCi2q36KpXQ", /* main-index: 10*/
            "t3ZnCNAvgu6CSyHm1vWtrx3aiN98dSAGpnD", /* main-index: 11*/
            "t3fB9cB3eSYim64BS9xfwAHQUKLgQQroBDG", /* main-index: 12*/
            "t3cwZfKNNj2vXMAHBQeewm6pXhKFdhk18kD", /* main-index: 13*/
            "t3YcoujXfspWy7rbNUsGKxFEWZqNstGpeG4", /* main-index: 14*/
            "t3bLvCLigc6rbNrUTS5NwkgyVrZcZumTRa4", /* main-index: 15*/
            "t3VvHWa7r3oy67YtU4LZKGCWa2J6eGHvShi", /* main-index: 16*/
            "t3eF9X6X2dSo7MCvTjfZEzwWrVzquxRLNeY", /* main-index: 17*/
            "t3esCNwwmcyc8i9qQfyTbYhTqmYXZ9AwK3X", /* main-index: 18*/
            "t3M4jN7hYE2e27yLsuQPPjuVek81WV3VbBj", /* main-index: 19*/
            "t3gGWxdC67CYNoBbPjNvrrWLAWxPqZLxrVY", /* main-index: 20*/
            "t3LTWeoxeWPbmdkUD3NWBquk4WkazhFBmvU", /* main-index: 21*/
            "t3P5KKX97gXYFSaSjJPiruQEX84yF5z3Tjq", /* main-index: 22*/
            "t3f3T3nCWsEpzmD35VK62JgQfFig74dV8C9", /* main-index: 23*/
            "t3Rqonuzz7afkF7156ZA4vi4iimRSEn41hj", /* main-index: 24*/
            "t3fJZ5jYsyxDtvNrWBeoMbvJaQCj4JJgbgX", /* main-index: 25*/
            "t3Pnbg7XjP7FGPBUuz75H65aczphHgkpoJW", /* main-index: 26*/
            "t3WeKQDxCijL5X7rwFem1MTL9ZwVJkUFhpF", /* main-index: 27*/
            "t3Y9FNi26J7UtAUC4moaETLbMo8KS1Be6ME", /* main-index: 28*/
            "t3aNRLLsL2y8xcjPheZZwFy3Pcv7CsTwBec", /* main-index: 29*/
            "t3gQDEavk5VzAAHK8TrQu2BWDLxEiF1unBm", /* main-index: 30*/
            "t3Rbykhx1TUFrgXrmBYrAJe2STxRKFL7G9r", /* main-index: 31*/
            "t3aaW4aTdP7a8d1VTE1Bod2yhbeggHgMajR", /* main-index: 32*/
            "t3YEiAa6uEjXwFL2v5ztU1fn3yKgzMQqNyo", /* main-index: 33*/
            "t3g1yUUwt2PbmDvMDevTCPWUcbDatL2iQGP", /* main-index: 34*/
            "t3dPWnep6YqGPuY1CecgbeZrY9iUwH8Yd4z", /* main-index: 35*/
            "t3QRZXHDPh2hwU46iQs2776kRuuWfwFp4dV", /* main-index: 36*/
            "t3enhACRxi1ZD7e8ePomVGKn7wp7N9fFJ3r", /* main-index: 37*/
            "t3PkLgT71TnF112nSwBToXsD77yNbx2gJJY", /* main-index: 38*/
            "t3LQtHUDoe7ZhhvddRv4vnaoNAhCr2f4oFN", /* main-index: 39*/
            "t3fNcdBUbycvbCtsD2n9q3LuxG7jVPvFB8L", /* main-index: 40*/
            "t3dKojUU2EMjs28nHV84TvkVEUDu1M1FaEx", /* main-index: 41*/
            "t3aKH6NiWN1ofGd8c19rZiqgYpkJ3n679ME", /* main-index: 42*/
            "t3MEXDF9Wsi63KwpPuQdD6by32Mw2bNTbEa", /* main-index: 43*/
            "t3WDhPfik343yNmPTqtkZAoQZeqA83K7Y3f", /* main-index: 44*/
            "t3PSn5TbMMAEw7Eu36DYctFezRzpX1hzf3M", /* main-index: 45*/
            "t3R3Y5vnBLrEn8L6wFjPjBLnxSUQsKnmFpv", /* main-index: 46*/
            "t3Pcm737EsVkGTbhsu2NekKtJeG92mvYyoN", /* main-index: 47*/
//            "t3PZ9PPcLzgL57XRSG5ND4WNBC9UTFb8DXv", /* main-index: 48*/
//            "t3L1WgcyQ95vtpSgjHfgANHyVYvffJZ9iGb", /* main-index: 49*/
//            "t3JtoXqsv3FuS7SznYCd5pZJGU9di15mdd7", /* main-index: 50*/
//            "t3hLJHrHs3ytDgExxr1mD8DYSrk1TowGV25", /* main-index: 51*/
//            "t3fmYHU2DnVaQgPhDs6TMFVmyC3qbWEWgXN", /* main-index: 52*/
//            "t3T4WmAp6nrLkJ24iPpGeCe1fSWTPv47ASG", /* main-index: 53*/
//            "t3fP6GrDM4QVwdjFhmCxGNbe7jXXXSDQ5dv", /* main-index: 54*/
};
        assert(vFoundersRewardAddress.size() <= consensus.GetLastFoundersRewardBlockHeight());
    }
};
static CMainParams mainParams;

/**
 * Testnet (v3)
 */
class CTestNetParams : public CMainParams {
public:
    CTestNetParams() {
        strNetworkID = "test";
        consensus.nMajorityEnforceBlockUpgrade = 51;
        consensus.nMajorityRejectBlockOutdated = 75;
        consensus.nMajorityWindow = 400;
        consensus.powLimit = uint256S("07ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
        assert(maxUint/UintToArith256(consensus.powLimit) >= consensus.nPowAveragingWindow);
        consensus.fPowAllowMinDifficultyBlocks = true;
        pchMessageStart[0] = 0xfa;
        pchMessageStart[1] = 0x1a;
        pchMessageStart[2] = 0x24;
        pchMessageStart[3] = 0xb6;
        vAlertPubKey = ParseHex("044e7a1553392325c871c5ace5d6ad73501c66f4c185d6b0453cf45dec5a1322e705c672ac1a27ef7cdaf588c10effdf50ed5f95f85f2f54a5f6159fca394ed0c6");
        nDefaultPort = 18233;
        nMinerThreads = 0;
        nPruneAfterHeight = 1000;

        //! Modify the testnet genesis block so the timestamp is valid for a later start.
        genesis.nTime = 1477540580;
        genesis.nBits = 0x2007ffff;
        genesis.nNonce = uint256S("0x0000000000000000000000000000000000000000000000000000000000000007");
        genesis.nSolution = ParseHex("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");
        consensus.hashGenesisBlock = genesis.GetHash();
        assert(consensus.hashGenesisBlock == uint256S("0x038a2d378418e20809465984056d15d04e7b32a5ab0956a3b448ace885c22a55"));

        vFixedSeeds.clear();
        vSeeds.clear();
        vSeeds.push_back(CDNSSeedData("z.cash", "dnsseed.testnet.z.cash")); // Zcash

        // guarantees the first 2 characters, when base58 encoded, are "tm"
        base58Prefixes[PUBKEY_ADDRESS]     = {0x1D,0x25};
        // guarantees the first 2 characters, when base58 encoded, are "t2"
        base58Prefixes[SCRIPT_ADDRESS]     = {0x1C,0xBA};
        // the first character, when base58 encoded, is "9" or "c" (as in Bitcoin)
        base58Prefixes[SECRET_KEY]         = {0xEF};
        // do not rely on these BIP32 prefixes; they are not specified and may change
        base58Prefixes[EXT_PUBLIC_KEY]     = {0x04,0x35,0x87,0xCF};
        base58Prefixes[EXT_SECRET_KEY]     = {0x04,0x35,0x83,0x94};
        // guarantees the first 2 characters, when base58 encoded, are "zt"
        base58Prefixes[ZCPAYMENT_ADDRRESS] = {0x16,0xB6};
        // guarantees the first 2 characters, when base58 encoded, are "ST"
        base58Prefixes[ZCSPENDING_KEY]     = {0xAC,0x08};

        vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_test, pnSeed6_test + ARRAYLEN(pnSeed6_test));

        fRequireRPCPassword = true;
        fMiningRequiresPeers = true;
        fDefaultConsistencyChecks = false;
        fRequireStandard = true;
        fMineBlocksOnDemand = false;
        fTestnetToBeDeprecatedFieldRPC = true;

        checkpointData = (Checkpoints::CCheckpointData) {
            boost::assign::map_list_of
            ( 0, consensus.hashGenesisBlock),
            genesis.nTime,
            0,
            0
        };

        // Founders reward script expects a vector of 2-of-3 multisig addresses
        vFoundersRewardAddress = {
            "t2UNzUUx8mWBCRYPRezvA363EYXyEpHokyi", "t2N9PH9Wk9xjqYg9iin1Ua3aekJqfAtE543", "t2NGQjYMQhFndDHguvUw4wZdNdsssA6K7x2", "t27ktmq1kbeCWiQ5TZ7w5npSzcdbBmTB7v6",
            "t2GcBttAKD2WTHka8HyGc2dfvVTKYZUfHmJ", "t2Q3vxWaD9LrdqUE8Xd9Ddjpr9pUQ2aGotK", "t2TTfWDsYu998fHWzVP9Gns4fgxXXRi1Wzu", "t2KS6R4MMWdSBMjLCiw2iMyhWGRQPmyRqDn",
            "t2Q2ELrgotWv3Eec6LEtMMiiQ8dtW38u8Tj", "t2AEgJA88vTWAKqxJDFUEJWyHUtQAZi5G1D", "t2HCSdmpq1TQKksuwPQevwAzPTgfJ2rkMbG", "t2HQCPFAUQaUdJWHPhg5pPBxit7inaJzubE",
            "t2Fzqvq8Y9e6Mn3JNPb982aYsLmq4b5HmhH", "t2HEz7YZQqDUgC5h4y2WSD3mWneqJNVRjjJ", "t2GCR1SCk687Eeo5NEZ23MLsms7JjVWBgfG", "t2KyiPR9Lztq2w1w747X6W4nkUMAGL8M9KN",
            "t2UxymadyxSyVihmbq7S1yxw5dCBqJ1S4jT", "t2AVeMy7fdmTcJhckqiKRG8B7F1vccEhSqU", "t26m7LwihQzD2sH7ZVhYpPJM5j7kzwbfKW9", "t2DgwUNTe7NxuyPU6fxsB5xJXap3E4yWXrN",
            "t2U6funcXA11fC9SZehyvUL3rk3Vhuh7fzS", "t284JhyS8LGM72Tx1porSqwrcq3CejthP1p", "t29egu8QcpzKeLoPLqWS6QVMnUUPQdF6eNm", "t29LqD9p9D3B26euBwFi6mfcWu8HPA38VNs",
            "t28GsAMCxAyLy85XaasddDzaYFTtfewr86y", "t2GV44QyaikQPLUfm6oTfZnw71LLjnR7gDG", "t2U2QzNLQ1jtAu4L6xxVnRXLBsQpQvGRR2g", "t2QKGr5PNan7nrwDgseyHMN9NFeeuUjCh8b",
            "t2AfS8u6HwBeJpKpbuxztvRjupKQDXqnrwa", "t2CTRQUViQd3CWMhnKhFnUHqDLUyTxmWhJs", "t2CbM9EqszNURqh1UXZBXYhwp1R4GwEhWRE", "t2LM7uYiAsKDU42GNSnMwDxbZ8s1DowQzYH",
            "t2AgvT35LHR378AE3ouz6xKMhkTLHLJC6nD", "t285EAQXUVyi4NMddJv2QqTrnv45GRMbP8e", "t2EpMRCD5b8f2DCQ37npNULcpZhkjC8muqA", "t2BCmWXrRPiCeQTpizSWKKRPM5X6PS7umDY",
            "t2DN7X6wDFn5hYKBiBmn3Z98st419yaTVTH", "t2QJj8HeCwQ6mHwqekxxDLZntYpZTHNU62t", "t2QdHBR1Yciqn4j8gpS8DcQZZtYetKvfNj3", "t2E5cpLA1ey5VNxFNcuopeQMq2rH2NHiPdu",
            "t2EVRGtzjFAyz8CF8ndvLuiJu7qZUfDa93H", "t2KoQDk3BSFadBkuaWdLwchFuQamzw9RE4L", "t2FnR3yhTmuiejEJeu6qpidWTghRd1HpjLt", "t2BAuBAAospDc9d1u5nNGEi6x4NRJBD2PQ2",
            "t2RtKrLCGcyPkm4a4APg1YY9Wu2m4R2PgrB", "t28aUbSteZzBq2pFgj1K1XNZRZP5mMMyakV", "t2Urdy1ERfkvsFuy6Z4BkhvYGzWdmivfAFR", "t2ADinR4JrvCMd4Q1XGALPajzFrirqvhED6",
        };
        assert(vFoundersRewardAddress.size() <= consensus.GetLastFoundersRewardBlockHeight());
    }
};
static CTestNetParams testNetParams;

/**
 * Regression test
 */
class CRegTestParams : public CTestNetParams {
public:
    CRegTestParams() {
        strNetworkID = "regtest";
        consensus.fCoinbaseMustBeProtected = false;
        consensus.nSubsidySlowStartInterval = 0;
        consensus.nSubsidyHalvingInterval = 150;
        consensus.nMajorityEnforceBlockUpgrade = 750;
        consensus.nMajorityRejectBlockOutdated = 950;
        consensus.nMajorityWindow = 1000;
        consensus.powLimit = uint256S("0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f");
        assert(maxUint/UintToArith256(consensus.powLimit) >= consensus.nPowAveragingWindow);
        consensus.nPowMaxAdjustDown = 0; // Turn off adjustment down
        consensus.nPowMaxAdjustUp = 0; // Turn off adjustment up
        pchMessageStart[0] = 0xaa;
        pchMessageStart[1] = 0xe8;
        pchMessageStart[2] = 0x3f;
        pchMessageStart[3] = 0x5f;
        nMinerThreads = 1;
        nMaxTipAge = 24 * 60 * 60;
        const size_t N = 48, K = 5;
        BOOST_STATIC_ASSERT(equihash_parameters_acceptable(N, K));
        nEquihashN = N;
        nEquihashK = K;
        genesis.nTime = 1296688602;
        genesis.nBits = 0x200f0f0f;
        genesis.nNonce = uint256S("0x0000000000000000000000000000000000000000000000000000000000000009");
        genesis.nSolution = ParseHex("0905111770fb9072e53075375f5d77c379e30bd25270f8778abdca2ee5156f5635b9b391");
        consensus.hashGenesisBlock = genesis.GetHash();
        nDefaultPort = 18444;
        assert(consensus.hashGenesisBlock == uint256S("0x0b9d8b1be2041720ab879592c3be0ec7ee79fcb2d1e238f93d3d1afe58d0d867"));
        nPruneAfterHeight = 1000;

        vFixedSeeds.clear(); //! Regtest mode doesn't have any fixed seeds.
        vSeeds.clear();  //! Regtest mode doesn't have any DNS seeds.

        fRequireRPCPassword = false;
        fMiningRequiresPeers = false;
        fDefaultConsistencyChecks = true;
        fRequireStandard = false;
        fMineBlocksOnDemand = true;
        fTestnetToBeDeprecatedFieldRPC = false;

        checkpointData = (Checkpoints::CCheckpointData){
            boost::assign::map_list_of
            ( 0, uint256S("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206")),
            0,
            0,
            0
        };

        // Founders reward script expects a vector of 2-of-3 multisig addresses
        vFoundersRewardAddress = { "t2FwcEhFdNXuFMv1tcYwaBJtYVtMj8b1uTg" };
        assert(vFoundersRewardAddress.size() <= consensus.GetLastFoundersRewardBlockHeight());
    }
};
static CRegTestParams regTestParams;

static CChainParams *pCurrentParams = 0;

const CChainParams &Params() {
    assert(pCurrentParams);
    return *pCurrentParams;
}

CChainParams &Params(CBaseChainParams::Network network) {
    switch (network) {
        case CBaseChainParams::MAIN:
            return mainParams;
        case CBaseChainParams::TESTNET:
            return testNetParams;
        case CBaseChainParams::REGTEST:
            return regTestParams;
        default:
            assert(false && "Unimplemented network");
            return mainParams;
    }
}

void SelectParams(CBaseChainParams::Network network) {
    SelectBaseParams(network);
    pCurrentParams = &Params(network);

    // Some python qa rpc tests need to enforce the coinbase consensus rule
    if (network == CBaseChainParams::REGTEST && mapArgs.count("-regtestprotectcoinbase")) {
        regTestParams.SetRegTestCoinbaseMustBeProtected();
    }
}

bool SelectParamsFromCommandLine()
{
    CBaseChainParams::Network network = NetworkIdFromCommandLine();
    if (network == CBaseChainParams::MAX_NETWORK_TYPES)
        return false;

    SelectParams(network);
    return true;
}


// Block height must be >0 and <=last founders reward block height
// Index variable i ranges from 0 - (vFoundersRewardAddress.size()-1)
std::string CChainParams::GetFoundersRewardAddressAtHeight(int nHeight) const {
    int maxHeight = consensus.GetLastFoundersRewardBlockHeight();
    assert(nHeight > 0 && nHeight <= maxHeight);

    size_t addressChangeInterval = (maxHeight + vFoundersRewardAddress.size()) / vFoundersRewardAddress.size();
    size_t i = nHeight / addressChangeInterval;
    return vFoundersRewardAddress[i];
}

// Block height must be >0 and <=last founders reward block height
// The founders reward address is expected to be a multisig (P2SH) address
CScript CChainParams::GetFoundersRewardScriptAtHeight(int nHeight) const {
    assert(nHeight > 0 && nHeight <= consensus.GetLastFoundersRewardBlockHeight());

    CBitcoinAddress address(GetFoundersRewardAddressAtHeight(nHeight).c_str());
    assert(address.IsValid());
    assert(address.IsScript());
    CScriptID scriptID = get<CScriptID>(address.Get()); // Get() returns a boost variant
    CScript script = CScript() << OP_HASH160 << ToByteVector(scriptID) << OP_EQUAL;
    return script;
}

std::string CChainParams::GetFoundersRewardAddressAtIndex(int i) const {
    assert(i >= 0 && i < vFoundersRewardAddress.size());
    return vFoundersRewardAddress[i];
}