Line data Source code
1 : // Copyright (c) 2010 Satoshi Nakamoto
2 : // Copyright (c) 2009-2014 The Bitcoin Core developers
3 : // Distributed under the MIT software license, see the accompanying
4 : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
5 :
6 : #include "chainparams.h"
7 :
8 : #include "util.h"
9 : #include "utilstrencodings.h"
10 :
11 : #include <assert.h>
12 :
13 : #include <boost/assign/list_of.hpp>
14 :
15 : #include "chainparamsseeds.h"
16 :
17 330 : static CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesisOutputScript, uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
18 : {
19 330 : CMutableTransaction txNew;
20 330 : txNew.nVersion = 1;
21 660 : txNew.vin.resize(1);
22 660 : txNew.vout.resize(1);
23 1650 : txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
24 330 : txNew.vout[0].nValue = genesisReward;
25 330 : txNew.vout[0].scriptPubKey = genesisOutputScript;
26 :
27 330 : CBlock genesis;
28 330 : genesis.nTime = nTime;
29 330 : genesis.nBits = nBits;
30 330 : genesis.nNonce = nNonce;
31 330 : genesis.nVersion = nVersion;
32 660 : genesis.vtx.push_back(txNew);
33 330 : genesis.hashPrevBlock.SetNull();
34 330 : genesis.hashMerkleRoot = genesis.ComputeMerkleRoot();
35 330 : return genesis;
36 : }
37 :
38 : /**
39 : * Build the genesis block. Note that the output of its generation
40 : * transaction cannot be spent since it did not originally exist in the
41 : * database.
42 : *
43 : * CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
44 : * CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
45 : * CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
46 : * CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
47 : * vMerkleTree: 4a5e1e
48 : */
49 330 : static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
50 : {
51 330 : const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
52 1320 : const CScript genesisOutputScript = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
53 660 : return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
54 : }
55 :
56 : /**
57 : * Main network
58 : */
59 : /**
60 : * What makes a good checkpoint block?
61 : * + Is surrounded by blocks with reasonable timestamps
62 : * (no blocks before with a timestamp after, none after with
63 : * timestamp before)
64 : * + Contains no strange transactions
65 : */
66 :
67 110 : class CMainParams : public CChainParams {
68 : public:
69 110 : CMainParams() {
70 110 : strNetworkID = "main";
71 110 : consensus.nSubsidyHalvingInterval = 210000;
72 110 : consensus.nMajorityEnforceBlockUpgrade = 750;
73 110 : consensus.nMajorityRejectBlockOutdated = 950;
74 110 : consensus.nMajorityWindow = 1000;
75 110 : consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
76 110 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
77 110 : consensus.nPowTargetSpacing = 10 * 60;
78 110 : consensus.fPowAllowMinDifficultyBlocks = false;
79 : /**
80 : * The message start string is designed to be unlikely to occur in normal data.
81 : * The characters are rarely used upper ASCII, not valid as UTF-8, and produce
82 : * a large 32-bit integer with any alignment.
83 : */
84 110 : pchMessageStart[0] = 0xf9;
85 110 : pchMessageStart[1] = 0xbe;
86 110 : pchMessageStart[2] = 0xb4;
87 110 : pchMessageStart[3] = 0xd9;
88 220 : vAlertPubKey = ParseHex("04fc9702847840aaf195de8442ebecedf5b095cdbb9bc716bda9110971b28a49e0ead8564ff0db22209e0374782c093bb899692d524e9d6a6956e7c5ecbcd68284");
89 110 : nDefaultPort = 8333;
90 110 : nMaxTipAge = 24 * 60 * 60;
91 110 : nPruneAfterHeight = 100000;
92 :
93 220 : genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1, 50 * COIN);
94 110 : consensus.hashGenesisBlock = genesis.GetHash();
95 220 : assert(consensus.hashGenesisBlock == uint256S("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"));
96 220 : assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
97 :
98 550 : vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be")); // Pieter Wuille
99 550 : vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me")); // Matt Corallo
100 550 : vSeeds.push_back(CDNSSeedData("dashjr.org", "dnsseed.bitcoin.dashjr.org")); // Luke Dashjr
101 550 : vSeeds.push_back(CDNSSeedData("bitcoinstats.com", "seed.bitcoinstats.com")); // Christian Decker
102 550 : vSeeds.push_back(CDNSSeedData("xf2.org", "bitseed.xf2.org")); // Jeff Garzik
103 550 : vSeeds.push_back(CDNSSeedData("bitcoin.jonasschnelli.ch", "seed.bitcoin.jonasschnelli.ch")); // Jonas Schnelli
104 :
105 330 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
106 330 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
107 330 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128);
108 770 : base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x88)(0xB2)(0x1E).convert_to_container<std::vector<unsigned char> >();
109 770 : base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x88)(0xAD)(0xE4).convert_to_container<std::vector<unsigned char> >();
110 :
111 330 : vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_main, pnSeed6_main + ARRAYLEN(pnSeed6_main));
112 :
113 110 : fMiningRequiresPeers = true;
114 110 : fDefaultConsistencyChecks = false;
115 110 : fRequireStandard = true;
116 110 : fMineBlocksOnDemand = false;
117 110 : fTestnetToBeDeprecatedFieldRPC = false;
118 :
119 220 : checkpointData = (CCheckpointData) {
120 : boost::assign::map_list_of
121 : ( 11111, uint256S("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d"))
122 330 : ( 33333, uint256S("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6"))
123 330 : ( 74000, uint256S("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
124 330 : (105000, uint256S("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97"))
125 330 : (134444, uint256S("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe"))
126 330 : (168000, uint256S("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763"))
127 330 : (193000, uint256S("0x000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317"))
128 330 : (210000, uint256S("0x000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e"))
129 330 : (216116, uint256S("0x00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e"))
130 330 : (225430, uint256S("0x00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932"))
131 330 : (250000, uint256S("0x000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214"))
132 330 : (279000, uint256S("0x0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40"))
133 330 : (295000, uint256S("0x00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983")),
134 : 1397080064, // * UNIX timestamp of last checkpoint block
135 : 36544669, // * total number of transactions between genesis and last checkpoint
136 : // (the tx=... number in the SetBestChain debug.log lines)
137 : 60000.0 // * estimated number of transactions per day after checkpoint
138 : };
139 110 : }
140 : };
141 110 : static CMainParams mainParams;
142 :
143 : /**
144 : * Testnet (v3)
145 : */
146 110 : class CTestNetParams : public CChainParams {
147 : public:
148 110 : CTestNetParams() {
149 110 : strNetworkID = "test";
150 110 : consensus.nSubsidyHalvingInterval = 210000;
151 110 : consensus.nMajorityEnforceBlockUpgrade = 51;
152 110 : consensus.nMajorityRejectBlockOutdated = 75;
153 110 : consensus.nMajorityWindow = 100;
154 110 : consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
155 110 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
156 110 : consensus.nPowTargetSpacing = 10 * 60;
157 110 : consensus.fPowAllowMinDifficultyBlocks = true;
158 110 : pchMessageStart[0] = 0x0b;
159 110 : pchMessageStart[1] = 0x11;
160 110 : pchMessageStart[2] = 0x09;
161 110 : pchMessageStart[3] = 0x07;
162 220 : vAlertPubKey = ParseHex("04302390343f91cc401d56d68b123028bf52e5fca1939df127f63c6467cdf9c8e2c14b61104cf817d0b780da337893ecc4aaff1309e536162dabbdb45200ca2b0a");
163 110 : nDefaultPort = 18333;
164 110 : nMaxTipAge = 0x7fffffff;
165 110 : nPruneAfterHeight = 1000;
166 :
167 220 : genesis = CreateGenesisBlock(1296688602, 414098458, 0x1d00ffff, 1, 50 * COIN);
168 110 : consensus.hashGenesisBlock = genesis.GetHash();
169 220 : assert(consensus.hashGenesisBlock == uint256S("0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"));
170 220 : assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
171 :
172 110 : vFixedSeeds.clear();
173 110 : vSeeds.clear();
174 550 : vSeeds.push_back(CDNSSeedData("alexykot.me", "testnet-seed.alexykot.me"));
175 550 : vSeeds.push_back(CDNSSeedData("bitcoin.petertodd.org", "testnet-seed.bitcoin.petertodd.org"));
176 550 : vSeeds.push_back(CDNSSeedData("bluematt.me", "testnet-seed.bluematt.me"));
177 550 : vSeeds.push_back(CDNSSeedData("bitcoin.schildbach.de", "testnet-seed.bitcoin.schildbach.de"));
178 :
179 330 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
180 330 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
181 330 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
182 770 : base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
183 770 : base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();
184 :
185 330 : vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_test, pnSeed6_test + ARRAYLEN(pnSeed6_test));
186 :
187 110 : fMiningRequiresPeers = true;
188 110 : fDefaultConsistencyChecks = false;
189 110 : fRequireStandard = false;
190 110 : fMineBlocksOnDemand = false;
191 110 : fTestnetToBeDeprecatedFieldRPC = true;
192 :
193 440 : checkpointData = (CCheckpointData) {
194 : boost::assign::map_list_of
195 : ( 546, uint256S("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70")),
196 : 1337966069,
197 : 1488,
198 : 300
199 : };
200 :
201 110 : }
202 : };
203 110 : static CTestNetParams testNetParams;
204 :
205 : /**
206 : * Regression test
207 : */
208 110 : class CRegTestParams : public CChainParams {
209 : public:
210 110 : CRegTestParams() {
211 110 : strNetworkID = "regtest";
212 110 : consensus.nSubsidyHalvingInterval = 150;
213 110 : consensus.nMajorityEnforceBlockUpgrade = 750;
214 110 : consensus.nMajorityRejectBlockOutdated = 950;
215 110 : consensus.nMajorityWindow = 1000;
216 110 : consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
217 110 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
218 110 : consensus.nPowTargetSpacing = 10 * 60;
219 110 : consensus.fPowAllowMinDifficultyBlocks = true;
220 :
221 110 : pchMessageStart[0] = 0xfa;
222 110 : pchMessageStart[1] = 0xbf;
223 110 : pchMessageStart[2] = 0xb5;
224 110 : pchMessageStart[3] = 0xda;
225 110 : nMaxTipAge = 24 * 60 * 60;
226 110 : nDefaultPort = 18444;
227 110 : nPruneAfterHeight = 1000;
228 :
229 220 : genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff, 1, 50 * COIN);
230 110 : consensus.hashGenesisBlock = genesis.GetHash();
231 220 : assert(consensus.hashGenesisBlock == uint256S("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
232 220 : assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
233 :
234 110 : vFixedSeeds.clear(); //! Regtest mode doesn't have any fixed seeds.
235 110 : vSeeds.clear(); //! Regtest mode doesn't have any DNS seeds.
236 :
237 110 : fMiningRequiresPeers = false;
238 110 : fDefaultConsistencyChecks = true;
239 110 : fRequireStandard = false;
240 110 : fMineBlocksOnDemand = true;
241 110 : fTestnetToBeDeprecatedFieldRPC = false;
242 :
243 440 : checkpointData = (CCheckpointData){
244 : boost::assign::map_list_of
245 : ( 0, uint256S("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206")),
246 : 0,
247 : 0,
248 : 0
249 : };
250 330 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
251 330 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
252 330 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
253 770 : base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
254 770 : base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();
255 110 : }
256 : };
257 110 : static CRegTestParams regTestParams;
258 :
259 : static CChainParams *pCurrentParams = 0;
260 :
261 656599 : const CChainParams &Params() {
262 656599 : assert(pCurrentParams);
263 656599 : return *pCurrentParams;
264 : }
265 :
266 608 : CChainParams &Params(CBaseChainParams::Network network) {
267 608 : switch (network) {
268 : case CBaseChainParams::MAIN:
269 : return mainParams;
270 : case CBaseChainParams::TESTNET:
271 48 : return testNetParams;
272 : case CBaseChainParams::REGTEST:
273 306 : return regTestParams;
274 : default:
275 0 : assert(false && "Unimplemented network");
276 : return mainParams;
277 : }
278 : }
279 :
280 391 : void SelectParams(CBaseChainParams::Network network) {
281 391 : SelectBaseParams(network);
282 391 : pCurrentParams = &Params(network);
283 391 : }
284 :
285 108 : bool SelectParamsFromCommandLine()
286 : {
287 108 : CBaseChainParams::Network network = NetworkIdFromCommandLine();
288 108 : if (network == CBaseChainParams::MAX_NETWORK_TYPES)
289 : return false;
290 :
291 108 : SelectParams(network);
292 108 : return true;
293 330 : }
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