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

	#include "chainparams.h"

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

	#include <assert.h>

	#include <boost/assign/list_of.hpp>

	using namespace std;
	using namespace boost::assign;

	struct SeedSpec6 {
	uint8_t addr[16];
	uint16_t port;
	};

	#include "chainparamsseeds.h"

	/**
	* Main network
	*/

	//! Convert the pnSeeds6 array into usable address objects.
	static void convertSeed6(std::vector<CAddress> &vSeedsOut, const SeedSpec6 *data, unsigned int count)
	{
	// It'll only connect to one or two seed nodes because once it connects,
	// it'll get a pile of addresses with newer timestamps.
	// Seed nodes are given a random 'last seen time' of between one and two
	// weeks ago.
	const int64_t nOneWeek = 72460*60;
	for (unsigned int i = 0; i < count; i++)
	{
	struct in6_addr ip;
	memcpy(&ip, data[i].addr, sizeof(ip));
	CAddress addr(CService(ip, data[i].port));
	addr.nTime = GetTime() - GetRand(nOneWeek) - nOneWeek;
	vSeedsOut.push_back(addr);
	}
	}

	/**
	* 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
	*/
	static Checkpoints::MapCheckpoints mapCheckpoints =
	boost::assign::map_list_of
	( 11111, uint256("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d"))
	( 33333, uint256("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6"))
	( 74000, uint256("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
	(105000, uint256("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97"))
	(134444, uint256("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe"))
	(168000, uint256("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763"))
	(193000, uint256("0x000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317"))
	(210000, uint256("0x000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e"))
	(216116, uint256("0x00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e"))
	(225430, uint256("0x00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932"))
	(250000, uint256("0x000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214"))
	(279000, uint256("0x0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40"))
	(295000, uint256("0x00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983"))
	;
	static const Checkpoints::CCheckpointData data = {
	&mapCheckpoints,
	1397080064, // * UNIX timestamp of last checkpoint block
	36544669, // * total number of transactions between genesis and last checkpoint
	// (the tx=... number in the SetBestChain debug.log lines)
	60000.0 // * estimated number of transactions per day after checkpoint
	};

	static Checkpoints::MapCheckpoints mapCheckpointsTestnet =
	boost::assign::map_list_of
	( 546, uint256("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70"))
	;
	static const Checkpoints::CCheckpointData dataTestnet = {
	&mapCheckpointsTestnet,
	1337966069,
	1488,
	300
	};

	static Checkpoints::MapCheckpoints mapCheckpointsRegtest =
	boost::assign::map_list_of
	( 0, uint256("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"))
	;
	static const Checkpoints::CCheckpointData dataRegtest = {
	&mapCheckpointsRegtest,
	0,
	0,
	0
	};

	class CMainParams : public CChainParams {
	public:
	CMainParams() {
	networkID = CBaseChainParams::MAIN;
	strNetworkID = "main";
	/**
	* 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 4-byte int at any alignment.
	*/
	pchMessageStart[0] = 0xf9;
	pchMessageStart[1] = 0xbe;
	pchMessageStart[2] = 0xb4;
	pchMessageStart[3] = 0xd9;
	vAlertPubKey = ParseHex("04fc9702847840aaf195de8442ebecedf5b095cdbb9bc716bda9110971b28a49e0ead8564ff0db22209e0374782c093bb899692d524e9d6a6956e7c5ecbcd68284");
	nDefaultPort = 8333;
	bnProofOfWorkLimit = ~uint256(0) >> 32;
	nSubsidyHalvingInterval = 210000;
	nEnforceBlockUpgradeMajority = 750;
	nRejectBlockOutdatedMajority = 950;
	nToCheckBlockUpgradeMajority = 1000;
	nMinerThreads = 0;
	nTargetTimespan = 14 * 24 * 60 * 60; // two weeks
	nTargetSpacing = 10 * 60;

	/**
	* Build the genesis block. Note that the output of the genesis coinbase cannot
	* be spent as it did not originally exist in the database.
	*
	* CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
	* CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
	* CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
	* CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
	* vMerkleTree: 4a5e1e
	*/
	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 = 50 * COIN;
	txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
	genesis.vtx.push_back(txNew);
	genesis.hashPrevBlock = 0;
	genesis.hashMerkleRoot = genesis.BuildMerkleTree();
	genesis.nVersion = 1;
	genesis.nTime = 1231006505;
	genesis.nBits = 0x1d00ffff;
	genesis.nNonce = 2083236893;

	hashGenesisBlock = genesis.GetHash();
	assert(hashGenesisBlock == uint256("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"));
	assert(genesis.hashMerkleRoot == uint256("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));

	vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be"));
	vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me"));
	vSeeds.push_back(CDNSSeedData("dashjr.org", "dnsseed.bitcoin.dashjr.org"));
	vSeeds.push_back(CDNSSeedData("bitcoinstats.com", "seed.bitcoinstats.com"));
	vSeeds.push_back(CDNSSeedData("bitnodes.io", "seed.bitnodes.io"));
	vSeeds.push_back(CDNSSeedData("xf2.org", "bitseed.xf2.org"));

	base58Prefixes[PUBKEY_ADDRESS] = list_of(0);
	base58Prefixes[SCRIPT_ADDRESS] = list_of(5);
	base58Prefixes[SECRET_KEY] = list_of(128);
	base58Prefixes[EXT_PUBLIC_KEY] = list_of(0x04)(0x88)(0xB2)(0x1E);
	base58Prefixes[EXT_SECRET_KEY] = list_of(0x04)(0x88)(0xAD)(0xE4);

	convertSeed6(vFixedSeeds, pnSeed6_main, ARRAYLEN(pnSeed6_main));

	fRequireRPCPassword = true;
	fMiningRequiresPeers = true;
	fDefaultCheckMemPool = false;
	fAllowMinDifficultyBlocks = false;
	fRequireStandard = true;
	fMineBlocksOnDemand = false;
	fSkipProofOfWorkCheck = false;
	fTestnetToBeDeprecatedFieldRPC = false;
	}

	const Checkpoints::CCheckpointData& Checkpoints() const
	{
	return data;
	}
	};
	static CMainParams mainParams;

	/**
	* Testnet (v3)
	*/
	class CTestNetParams : public CMainParams {
	public:
	CTestNetParams() {
	networkID = CBaseChainParams::TESTNET;
	strNetworkID = "test";
	/**
	* 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 4-byte int at any alignment.
	*/
	pchMessageStart[0] = 0x0b;
	pchMessageStart[1] = 0x11;
	pchMessageStart[2] = 0x09;
	pchMessageStart[3] = 0x07;
	vAlertPubKey = ParseHex("04302390343f91cc401d56d68b123028bf52e5fca1939df127f63c6467cdf9c8e2c14b61104cf817d0b780da337893ecc4aaff1309e536162dabbdb45200ca2b0a");
	nDefaultPort = 18333;
	nEnforceBlockUpgradeMajority = 51;
	nRejectBlockOutdatedMajority = 75;
	nToCheckBlockUpgradeMajority = 100;
	nMinerThreads = 0;
	nTargetTimespan = 14 * 24 * 60 * 60; //! two weeks
	nTargetSpacing = 10 * 60;

	//! Modify the testnet genesis block so the timestamp is valid for a later start.
	genesis.nTime = 1296688602;
	genesis.nNonce = 414098458;
	hashGenesisBlock = genesis.GetHash();
	assert(hashGenesisBlock == uint256("0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"));

	vFixedSeeds.clear();
	vSeeds.clear();
	vSeeds.push_back(CDNSSeedData("alexykot.me", "testnet-seed.alexykot.me"));
	vSeeds.push_back(CDNSSeedData("bitcoin.petertodd.org", "testnet-seed.bitcoin.petertodd.org"));
	vSeeds.push_back(CDNSSeedData("bluematt.me", "testnet-seed.bluematt.me"));
	vSeeds.push_back(CDNSSeedData("bitcoin.schildbach.de", "testnet-seed.bitcoin.schildbach.de"));

	base58Prefixes[PUBKEY_ADDRESS] = list_of(111);
	base58Prefixes[SCRIPT_ADDRESS] = list_of(196);
	base58Prefixes[SECRET_KEY] = list_of(239);
	base58Prefixes[EXT_PUBLIC_KEY] = list_of(0x04)(0x35)(0x87)(0xCF);
	base58Prefixes[EXT_SECRET_KEY] = list_of(0x04)(0x35)(0x83)(0x94);

	convertSeed6(vFixedSeeds, pnSeed6_test, ARRAYLEN(pnSeed6_test));

	fRequireRPCPassword = true;
	fMiningRequiresPeers = true;
	fDefaultCheckMemPool = false;
	fAllowMinDifficultyBlocks = true;
	fRequireStandard = false;
	fMineBlocksOnDemand = false;
	fTestnetToBeDeprecatedFieldRPC = true;
	}
	const Checkpoints::CCheckpointData& Checkpoints() const
	{
	return dataTestnet;
	}
	};
	static CTestNetParams testNetParams;

	/**
	* Regression test
	*/
	class CRegTestParams : public CTestNetParams {
	public:
	CRegTestParams() {
	networkID = CBaseChainParams::REGTEST;
	strNetworkID = "regtest";
	pchMessageStart[0] = 0xfa;
	pchMessageStart[1] = 0xbf;
	pchMessageStart[2] = 0xb5;
	pchMessageStart[3] = 0xda;
	nSubsidyHalvingInterval = 150;
	nEnforceBlockUpgradeMajority = 750;
	nRejectBlockOutdatedMajority = 950;
	nToCheckBlockUpgradeMajority = 1000;
	nMinerThreads = 1;
	nTargetTimespan = 14 * 24 * 60 * 60; //! two weeks
	nTargetSpacing = 10 * 60;
	bnProofOfWorkLimit = ~uint256(0) >> 1;
	genesis.nTime = 1296688602;
	genesis.nBits = 0x207fffff;
	genesis.nNonce = 2;
	hashGenesisBlock = genesis.GetHash();
	nDefaultPort = 18444;
	assert(hashGenesisBlock == uint256("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));

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

	fRequireRPCPassword = false;
	fMiningRequiresPeers = false;
	fDefaultCheckMemPool = true;
	fAllowMinDifficultyBlocks = true;
	fRequireStandard = false;
	fMineBlocksOnDemand = true;
	fTestnetToBeDeprecatedFieldRPC = false;
	}
	const Checkpoints::CCheckpointData& Checkpoints() const
	{
	return dataRegtest;
	}
	};
	static CRegTestParams regTestParams;

	/**
	* Unit test
	*/
	class CUnitTestParams : public CMainParams, public CModifiableParams {
	public:
	CUnitTestParams() {
	networkID = CBaseChainParams::UNITTEST;
	strNetworkID = "unittest";
	nDefaultPort = 18445;
	vFixedSeeds.clear(); //! Unit test mode doesn't have any fixed seeds.
	vSeeds.clear(); //! Unit test mode doesn't have any DNS seeds.

	fRequireRPCPassword = false;
	fMiningRequiresPeers = false;
	fDefaultCheckMemPool = true;
	fAllowMinDifficultyBlocks = false;
	fMineBlocksOnDemand = true;
	}

	const Checkpoints::CCheckpointData& Checkpoints() const
	{
	// UnitTest share the same checkpoints as MAIN
	return data;
	}

	//! Published setters to allow changing values in unit test cases
	virtual void setSubsidyHalvingInterval(int anSubsidyHalvingInterval) { nSubsidyHalvingInterval=anSubsidyHalvingInterval; }
	virtual void setEnforceBlockUpgradeMajority(int anEnforceBlockUpgradeMajority) { nEnforceBlockUpgradeMajority=anEnforceBlockUpgradeMajority; }
	virtual void setRejectBlockOutdatedMajority(int anRejectBlockOutdatedMajority) { nRejectBlockOutdatedMajority=anRejectBlockOutdatedMajority; }
	virtual void setToCheckBlockUpgradeMajority(int anToCheckBlockUpgradeMajority) { nToCheckBlockUpgradeMajority=anToCheckBlockUpgradeMajority; }
	virtual void setDefaultCheckMemPool(bool afDefaultCheckMemPool) { fDefaultCheckMemPool=afDefaultCheckMemPool; }
	virtual void setAllowMinDifficultyBlocks(bool afAllowMinDifficultyBlocks) { fAllowMinDifficultyBlocks=afAllowMinDifficultyBlocks; }
	virtual void setSkipProofOfWorkCheck(bool afSkipProofOfWorkCheck) { fSkipProofOfWorkCheck = afSkipProofOfWorkCheck; }
	};
	static CUnitTestParams unitTestParams;


	static CChainParams *pCurrentParams = 0;

	CModifiableParams *ModifiableParams()
	{
	assert(pCurrentParams);
	assert(pCurrentParams==&unitTestParams);
	return (CModifiableParams*)&unitTestParams;
	}

	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;
	case CBaseChainParams::UNITTEST:
	return unitTestParams;
	default:
	assert(false && "Unimplemented network");
	return mainParams;
	}
	}

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

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

	SelectParams(network);
	return true;
	}

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