Add btc network params

chaincfg/btc_params.go

@@ -0,0 +1,212 @@
+// Copyright (c) 2014-2016 The btcsuite developers
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+package chaincfg
+
+import (
+	"time"
+
+	"github.com/bitspill/flod/wire"
+)
+
+// MainNetParams defines the network parameters for the main Bitcoin network.
+var BtcMainNetParams = Params{
+	Name:        "mainnet",
+	Net:         wire.BtcMainNet,
+	DefaultPort: "8333",
+	DNSSeeds: []DNSSeed{
+		{"seed.bitcoin.sipa.be", true},
+		{"dnsseed.bluematt.me", true},
+		{"dnsseed.bitcoin.dashjr.org", false},
+		{"seed.bitcoinstats.com", true},
+		{"seed.bitnodes.io", false},
+		{"seed.bitcoin.jonasschnelli.ch", true},
+	},
+
+	// Chain parameters
+	GenesisBlock:                 &genesisBlock,
+	GenesisHash:                  &genesisHash,
+	PowLimit:                     mainPowLimit,
+	PowLimitBits:                 0x1d00ffff,
+	BIP0034Height:                227931, // 000000000000024b89b42a942fe0d9fea3bb44ab7bd1b19115dd6a759c0808b8
+	BIP0065Height:                388381, // 000000000000000004c2b624ed5d7756c508d90fd0da2c7c679febfa6c4735f0
+	BIP0066Height:                363725, // 00000000000000000379eaa19dce8c9b722d46ae6a57c2f1a988119488b50931
+	CoinbaseMaturity:             100,
+	SubsidyReductionInterval:     210000,
+	TargetTimespan:               time.Hour * 24 * 14, // 14 days
+	TargetTimePerBlock:           time.Minute * 10,    // 10 minutes
+	RetargetAdjustmentFactorUp:   4,                   // 25% less, 400% more
+	RetargetAdjustmentFactorDown: 4,                   // 25% less, 400% more
+	ReduceMinDifficulty:          false,
+	MinDiffReductionTime:         0,
+	GenerateSupported:            false,
+
+	// Checkpoints ordered from oldest to newest.
+	Checkpoints: []Checkpoint{
+		{11111, newHashFromStr("0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d")},
+		{33333, newHashFromStr("000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6")},
+		{74000, newHashFromStr("0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20")},
+		{105000, newHashFromStr("00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97")},
+		{134444, newHashFromStr("00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe")},
+		{168000, newHashFromStr("000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763")},
+		{193000, newHashFromStr("000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317")},
+		{210000, newHashFromStr("000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e")},
+		{216116, newHashFromStr("00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e")},
+		{225430, newHashFromStr("00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932")},
+		{250000, newHashFromStr("000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214")},
+		{267300, newHashFromStr("000000000000000a83fbd660e918f218bf37edd92b748ad940483c7c116179ac")},
+		{279000, newHashFromStr("0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40")},
+		{300255, newHashFromStr("0000000000000000162804527c6e9b9f0563a280525f9d08c12041def0a0f3b2")},
+		{319400, newHashFromStr("000000000000000021c6052e9becade189495d1c539aa37c58917305fd15f13b")},
+		{343185, newHashFromStr("0000000000000000072b8bf361d01a6ba7d445dd024203fafc78768ed4368554")},
+		{352940, newHashFromStr("000000000000000010755df42dba556bb72be6a32f3ce0b6941ce4430152c9ff")},
+		{382320, newHashFromStr("00000000000000000a8dc6ed5b133d0eb2fd6af56203e4159789b092defd8ab2")},
+	},
+
+	// Consensus rule change deployments.
+	//
+	// The miner confirmation window is defined as:
+	//   target proof of work timespan / target proof of work spacing
+	RuleChangeActivationThreshold: 1916, // 95% of MinerConfirmationWindow
+	MinerConfirmationWindow:       2016, //
+	Deployments: [DefinedDeployments]ConsensusDeployment{
+		DeploymentTestDummy: {
+			BitNumber:  28,
+			StartTime:  1199145601, // January 1, 2008 UTC
+			ExpireTime: 1230767999, // December 31, 2008 UTC
+		},
+		DeploymentCSV: {
+			BitNumber:  0,
+			StartTime:  1462060800, // May 1st, 2016
+			ExpireTime: 1493596800, // May 1st, 2017
+		},
+		DeploymentSegwit: {
+			BitNumber:  1,
+			StartTime:  1479168000, // November 15, 2016 UTC
+			ExpireTime: 1510704000, // November 15, 2017 UTC.
+		},
+	},
+
+	// Mempool parameters
+	RelayNonStdTxs: false,
+
+	// Human-readable part for Bech32 encoded segwit addresses, as defined in
+	// BIP 173.
+	Bech32HRPSegwit: "bc", // always bc for main net
+
+	// Address encoding magics
+	PubKeyHashAddrID:        0x00, // starts with 1
+	ScriptHashAddrID:        0x05, // starts with 3
+	PrivateKeyID:            0x80, // starts with 5 (uncompressed) or K (compressed)
+	WitnessPubKeyHashAddrID: 0x06, // starts with p2
+	WitnessScriptHashAddrID: 0x0A, // starts with 7Xh
+
+	// BIP32 hierarchical deterministic extended key magics
+	HDPrivateKeyID: [4]byte{0x04, 0x88, 0xad, 0xe4}, // starts with xprv
+	HDPublicKeyID:  [4]byte{0x04, 0x88, 0xb2, 0x1e}, // starts with xpub
+
+	// BIP44 coin type used in the hierarchical deterministic path for
+	// address generation.
+	HDCoinType: 0,
+}
+
+// TestNet3Params defines the network parameters for the test Bitcoin network
+// (version 3).  Not to be confused with the regression test network, this
+// network is sometimes simply called "testnet".
+var BtcTestNet3Params = Params{
+	Name:        "testnet3",
+	Net:         wire.BtcTestNet3,
+	DefaultPort: "18333",
+	DNSSeeds: []DNSSeed{
+		{"testnet-seed.bitcoin.jonasschnelli.ch", true},
+		{"testnet-seed.bitcoin.schildbach.de", false},
+		{"seed.tbtc.petertodd.org", true},
+		{"testnet-seed.bluematt.me", false},
+	},
+
+	// Chain parameters
+	GenesisBlock:                 &testNet3GenesisBlock,
+	GenesisHash:                  &testNet3GenesisHash,
+	PowLimit:                     testNet3PowLimit,
+	PowLimitBits:                 0x1d00ffff,
+	BIP0034Height:                21111,  // 0000000023b3a96d3484e5abb3755c413e7d41500f8e2a5c3f0dd01299cd8ef8
+	BIP0065Height:                581885, // 00000000007f6655f22f98e72ed80d8b06dc761d5da09df0fa1dc4be4f861eb6
+	BIP0066Height:                330776, // 000000002104c8c45e99a8853285a3b592602a3ccde2b832481da85e9e4ba182
+	CoinbaseMaturity:             100,
+	SubsidyReductionInterval:     210000,
+	TargetTimespan:               time.Hour * 24 * 14, // 14 days
+	TargetTimePerBlock:           time.Minute * 10,    // 10 minutes
+	RetargetAdjustmentFactorUp:   4,                   // 25% less, 400% more
+	RetargetAdjustmentFactorDown: 4,                   // 25% less, 400% more
+	ReduceMinDifficulty:          true,
+	MinDiffReductionTime:         time.Minute * 20, // TargetTimePerBlock * 2
+	GenerateSupported:            false,
+
+	// Checkpoints ordered from oldest to newest.
+	Checkpoints: []Checkpoint{
+		{546, newHashFromStr("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70")},
+		{100000, newHashFromStr("00000000009e2958c15ff9290d571bf9459e93b19765c6801ddeccadbb160a1e")},
+		{200000, newHashFromStr("0000000000287bffd321963ef05feab753ebe274e1d78b2fd4e2bfe9ad3aa6f2")},
+		{300001, newHashFromStr("0000000000004829474748f3d1bc8fcf893c88be255e6d7f571c548aff57abf4")},
+		{400002, newHashFromStr("0000000005e2c73b8ecb82ae2dbc2e8274614ebad7172b53528aba7501f5a089")},
+		{500011, newHashFromStr("00000000000929f63977fbac92ff570a9bd9e7715401ee96f2848f7b07750b02")},
+		{600002, newHashFromStr("000000000001f471389afd6ee94dcace5ccc44adc18e8bff402443f034b07240")},
+		{700000, newHashFromStr("000000000000406178b12a4dea3b27e13b3c4fe4510994fd667d7c1e6a3f4dc1")},
+		{800010, newHashFromStr("000000000017ed35296433190b6829db01e657d80631d43f5983fa403bfdb4c1")},
+		{900000, newHashFromStr("0000000000356f8d8924556e765b7a94aaebc6b5c8685dcfa2b1ee8b41acd89b")},
+		{1000007, newHashFromStr("00000000001ccb893d8a1f25b70ad173ce955e5f50124261bbbc50379a612ddf")},
+	},
+
+	// Consensus rule change deployments.
+	//
+	// The miner confirmation window is defined as:
+	//   target proof of work timespan / target proof of work spacing
+	RuleChangeActivationThreshold: 1512, // 75% of MinerConfirmationWindow
+	MinerConfirmationWindow:       2016,
+	Deployments: [DefinedDeployments]ConsensusDeployment{
+		DeploymentTestDummy: {
+			BitNumber:  28,
+			StartTime:  1199145601, // January 1, 2008 UTC
+			ExpireTime: 1230767999, // December 31, 2008 UTC
+		},
+		DeploymentCSV: {
+			BitNumber:  0,
+			StartTime:  1456790400, // March 1st, 2016
+			ExpireTime: 1493596800, // May 1st, 2017
+		},
+		DeploymentSegwit: {
+			BitNumber:  1,
+			StartTime:  1462060800, // May 1, 2016 UTC
+			ExpireTime: 1493596800, // May 1, 2017 UTC.
+		},
+	},
+
+	// Mempool parameters
+	RelayNonStdTxs: true,
+
+	// Human-readable part for Bech32 encoded segwit addresses, as defined in
+	// BIP 173.
+	Bech32HRPSegwit: "tb", // always tb for test net
+
+	// Address encoding magics
+	PubKeyHashAddrID:        0x6f, // starts with m or n
+	ScriptHashAddrID:        0xc4, // starts with 2
+	WitnessPubKeyHashAddrID: 0x03, // starts with QW
+	WitnessScriptHashAddrID: 0x28, // starts with T7n
+	PrivateKeyID:            0xef, // starts with 9 (uncompressed) or c (compressed)
+
+	// BIP32 hierarchical deterministic extended key magics
+	HDPrivateKeyID: [4]byte{0x04, 0x35, 0x83, 0x94}, // starts with tprv
+	HDPublicKeyID:  [4]byte{0x04, 0x35, 0x87, 0xcf}, // starts with tpub
+
+	// BIP44 coin type used in the hierarchical deterministic path for
+	// address generation.
+	HDCoinType: 1,
+}
+
+func init() {
+	// Register all default networks when the package is initialized.
+	mustRegister(&BtcMainNetParams)
+	mustRegister(&BtcTestNet3Params)
+}

wire/protocol.go

@@ -134,15 +134,23 @@ const (
 
 	// SimNet represents the simulation test network.
 	SimNet BitcoinNet = 0x12141c16
+
+	// MainNet represents the main bitcoin network.
+	BtcMainNet BitcoinNet = 0xd9b4bef9
+
+	// TestNet3 represents the test network (version 3).
+	BtcTestNet3 BitcoinNet = 0x0709110b
 )
 
 // bnStrings is a map of bitcoin networks back to their constant names for
 // pretty printing.
 var bnStrings = map[BitcoinNet]string{
-	MainNet:  "MainNet",
-	TestNet:  "TestNet",
-	TestNet3: "TestNet3",
-	SimNet:   "SimNet",
+	MainNet:     "MainNet",
+	TestNet:     "TestNet",
+	TestNet3:    "TestNet3",
+	SimNet:      "SimNet",
+	BtcMainNet:  "BtcMainNet",
+	BtcTestNet3: "BtcTestNet3",
 }
 
 // String returns the BitcoinNet in human-readable form.