Documentation
¶
Overview ¶
Package chaincfg defines chain configuration parameters.
In addition to the main Bitcoin network, which is intended for the transfer of monetary value, there also exists two currently active standard networks: regression test and testnet (version 3). These networks are incompatible with each other (each sharing a different genesis block) and software should handle errors where input intended for one network is used on an application instance running on a different network.
For library packages, chaincfg provides the ability to lookup chain parameters and encoding magics when passed a *Params. Older APIs not updated to the new convention of passing a *Params may lookup the parameters for a wire.BitcoinNet using ParamsForNet, but be aware that this usage is deprecated and will be removed from chaincfg in the future.
For main packages, a (typically global) var may be assigned the address of one of the standard Param vars for use as the application's "active" network. When a network parameter is needed, it may then be looked up through this variable (either directly, or hidden in a library call).
package main
import (
"flag"
"fmt"
"github.com/mit-dci/lit/logging"
"github.com/mit-dci/go-bverify/bitcoin/btcutil"
"github.com/mit-dci/go-bverify/bitcoin/btcutil/chaincfg"
)
var testnet = flag.Bool("testnet", false, "operate on the testnet Bitcoin network")
// By default (without -testnet), use mainnet.
var chainParams = &chaincfg.MainNetParams
func main() {
flag.Parse()
// Modify active network parameters if operating on testnet.
if *testnet {
chainParams = &chaincfg.TestNet3Params
}
// later...
// Create and print new payment address, specific to the active network.
pubKeyHash := make([]byte, 20)
addr, err := btcutil.NewAddressPubKeyHash(pubKeyHash, chainParams)
if err != nil {
logging.Fatal(err)
}
fmt.Println(addr)
}
If an application does not use one of the three standard Bitcoin networks, a new Params struct may be created which defines the parameters for the non-standard network. As a general rule of thumb, all network parameters should be unique to the network, but parameter collisions can still occur (unfortunately, this is the case with regtest and testnet3 sharing magics).
Index ¶
Constants ¶
This section is empty.
Variables ¶
var ( // ErrDuplicateNet describes an error where the parameters for a Bitcoin // network could not be set due to the network already being a standard // network or previously-registered into this package. ErrDuplicateNet = errors.New("duplicate Bitcoin network") // ErrUnknownHDKeyID describes an error where the provided id which // is intended to identify the network for a hierarchical deterministic // private extended key is not registered. ErrUnknownHDKeyID = errors.New("unknown hd private extended key bytes") // ErrUnknownPrefix describes and error where the provided prefix string // isn't found associated with a parameter set / HDCoinType ErrUnknownPrefix = errors.New("unknown bech32 prefix") )
var BCHNetParams = Params{ Name: "bch", Net: wire.MainNet, DefaultPort: "8333", DNSSeeds: []string{}, GenesisBlock: &bc2GenesisBlock, GenesisHash: &bc2GenesisHash, PowLimit: bc2NetPowLimit, PowLimitBits: 0x1d7fffff, CoinbaseMaturity: 10, SubsidyReductionInterval: 210000, TargetTimespan: time.Hour * 1, TargetTimePerBlock: time.Minute * 1, RetargetAdjustmentFactor: 4, ReduceMinDifficulty: false, MinDiffReductionTime: time.Minute * 20, GenerateSupported: false, Checkpoints: []Checkpoint{}, BlockEnforceNumRequired: 51, BlockRejectNumRequired: 75, BlockUpgradeNumToCheck: 100, RelayNonStdTxs: true, PubKeyHashAddrID: 0x00, ScriptHashAddrID: 0x05, PrivateKeyID: 0x80, Bech32Prefix: "bitcoincash", HDPrivateKeyID: [4]byte{0x04, 0x35, 0x83, 0x94}, HDPublicKeyID: [4]byte{0x04, 0x35, 0x87, 0xcf}, HDCoinType: 111, ForkID: 0, }
BCHNetParams are the parameters for the bitcoin cash network This network forked off in august 2017 or so; seems similar to mainnet but has a forkID flag set to 0, and segwit-style signatures everywhere.
var BTGNetParams = Params{ Name: "btg", Net: wire.MainNet, DefaultPort: "8338", DNSSeeds: []string{"dnsseed.bitcoingold.org"}, GenesisBlock: &genesisBlock, GenesisHash: &genesisHash, PowLimit: mainPowLimit, PowLimitBits: 0x1d00ffff, CoinbaseMaturity: 100, SubsidyReductionInterval: 210000, TargetTimespan: time.Hour * 24 * 14, TargetTimePerBlock: time.Minute * 10, RetargetAdjustmentFactor: 4, ReduceMinDifficulty: false, MinDiffReductionTime: 0, GenerateSupported: false, Checkpoints: []Checkpoint{}, BlockEnforceNumRequired: 51, BlockRejectNumRequired: 75, BlockUpgradeNumToCheck: 100, RelayNonStdTxs: true, PubKeyHashAddrID: 0x26, ScriptHashAddrID: 0x59, Bech32Prefix: "btg", PrivateKeyID: 0x80, HDPrivateKeyID: [4]byte{0x04, 0x35, 0x83, 0x94}, HDPublicKeyID: [4]byte{0x04, 0x35, 0x87, 0xcf}, HDCoinType: 79, ForkID: 79, }
BTGNetParams are the parameters for the bitcoin gold network This network forked off in november 2017 or so; seems similar to mainnet and bitcoin cash; but has a forkID flag set to
var LiteCoinTestNet4Params = Params{ Name: "litetest4", Net: wire.LiteTest4Net, DefaultPort: "19335", DNSSeeds: []string{ "testnet-seed.litecointools.com", "seed-b.litecoin.loshan.co.uk", "dnsseed-testnet.thrasher.io", }, GenesisBlock: &bc2GenesisBlock, GenesisHash: &liteCoinTestNet4GenesisHash, PowLimit: liteCoinTestNet4PowLimit, PowLimitBits: 0x1e0fffff, CoinbaseMaturity: 100, SubsidyReductionInterval: 840000, TargetTimespan: time.Hour * 84, TargetTimePerBlock: time.Second * 150, RetargetAdjustmentFactor: 4, ReduceMinDifficulty: true, MinDiffReductionTime: time.Minute * 10, GenerateSupported: false, Checkpoints: []Checkpoint{}, BlockEnforceNumRequired: 51, BlockRejectNumRequired: 75, BlockUpgradeNumToCheck: 100, RelayNonStdTxs: true, PubKeyHashAddrID: 0x6f, ScriptHashAddrID: 0xc4, Bech32Prefix: "tltc", PrivateKeyID: 0xef, HDPrivateKeyID: [4]byte{0x04, 0x35, 0x83, 0x94}, HDPublicKeyID: [4]byte{0x04, 0x35, 0x87, 0xcf}, HDCoinType: 65537, }
LiteCoinTestNet4Params are the parameters for the litecoin test network 4.
var LiteRegNetParams = Params{ Name: "litereg", Net: wire.TestNet, DefaultPort: "19444", DNSSeeds: []string{}, GenesisBlock: &liteCoinRegTestGenesisBlock, GenesisHash: &liteCoinRegTestGenesisHash, PowLimit: regressionPowLimit, PowLimitBits: 0x207fffff, CoinbaseMaturity: 100, SubsidyReductionInterval: 150, TargetTimespan: time.Hour * 84, TargetTimePerBlock: time.Second * 150, RetargetAdjustmentFactor: 4, ReduceMinDifficulty: true, MinDiffReductionTime: time.Minute * 10, GenerateSupported: true, Checkpoints: []Checkpoint{}, BlockEnforceNumRequired: 51, BlockRejectNumRequired: 75, BlockUpgradeNumToCheck: 100, RelayNonStdTxs: true, PubKeyHashAddrID: 0x6f, ScriptHashAddrID: 0xc4, Bech32Prefix: "rltc", PrivateKeyID: 0xef, HDPrivateKeyID: [4]byte{0x04, 0x35, 0x83, 0x94}, HDPublicKeyID: [4]byte{0x04, 0x35, 0x87, 0xcf}, HDCoinType: 258, }
LiteCoinTestNet4Params are the parameters for the litecoin test network 4.
var MainNetParams = Params{ Name: "mainnet", Net: wire.MainNet, DefaultPort: "8333", DNSSeeds: []string{ "seed.bitcoin.sipa.be", "dnsseed.bluematt.me", "dnsseed.bitcoin.dashjr.org", "seed.bitcoinstats.com", "seed.bitnodes.io", "bitseed.xf2.org", "seed.bitcoin.jonasschnelli.ch", }, GenesisBlock: &genesisBlock, GenesisHash: &genesisHash, PowLimit: mainPowLimit, PowLimitBits: 0x1d00ffff, CoinbaseMaturity: 100, SubsidyReductionInterval: 210000, TargetTimespan: time.Hour * 24 * 14, TargetTimePerBlock: time.Minute * 10, RetargetAdjustmentFactor: 4, ReduceMinDifficulty: false, MinDiffReductionTime: 0, GenerateSupported: false, 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")}, }, BlockEnforceNumRequired: 750, BlockRejectNumRequired: 950, BlockUpgradeNumToCheck: 1000, RelayNonStdTxs: false, PubKeyHashAddrID: 0x00, ScriptHashAddrID: 0x05, PrivateKeyID: 0x80, Bech32Prefix: "bc", HDPrivateKeyID: [4]byte{0x04, 0x88, 0xad, 0xe4}, HDPublicKeyID: [4]byte{0x04, 0x88, 0xb2, 0x1e}, HDCoinType: 0, }
MainNetParams defines the network parameters for the main Bitcoin network.
var RegressionNetParams = Params{ Name: "regtest", Net: wire.TestNet, DefaultPort: "18444", DNSSeeds: []string{}, GenesisBlock: ®TestGenesisBlock, GenesisHash: ®TestGenesisHash, PowLimit: regressionPowLimit, PowLimitBits: 0x207fffff, CoinbaseMaturity: 100, SubsidyReductionInterval: 150, TargetTimespan: time.Hour * 24 * 14, TargetTimePerBlock: time.Minute * 10, RetargetAdjustmentFactor: 4, ReduceMinDifficulty: true, MinDiffReductionTime: time.Minute * 20, GenerateSupported: true, Checkpoints: nil, BlockEnforceNumRequired: 750, BlockRejectNumRequired: 950, BlockUpgradeNumToCheck: 1000, RelayNonStdTxs: true, PubKeyHashAddrID: 0x6f, ScriptHashAddrID: 0xc4, PrivateKeyID: 0xef, Bech32Prefix: "bcrt", HDPrivateKeyID: [4]byte{0x04, 0x35, 0x83, 0x94}, HDPublicKeyID: [4]byte{0x04, 0x35, 0x87, 0xcf}, HDCoinType: 257, }
RegressionNetParams defines the network parameters for the regression test Bitcoin network. Not to be confused with the test Bitcoin network (version 3), this network is sometimes simply called "testnet".
var SimNetParams = Params{ Name: "simnet", Net: wire.SimNet, DefaultPort: "18555", DNSSeeds: []string{}, GenesisBlock: &simNetGenesisBlock, GenesisHash: &simNetGenesisHash, PowLimit: simNetPowLimit, PowLimitBits: 0x207fffff, CoinbaseMaturity: 100, SubsidyReductionInterval: 210000, TargetTimespan: time.Hour * 24 * 14, TargetTimePerBlock: time.Minute * 10, RetargetAdjustmentFactor: 4, ReduceMinDifficulty: true, MinDiffReductionTime: time.Minute * 20, GenerateSupported: true, Checkpoints: nil, BlockEnforceNumRequired: 51, BlockRejectNumRequired: 75, BlockUpgradeNumToCheck: 100, RelayNonStdTxs: true, PubKeyHashAddrID: 0x3f, ScriptHashAddrID: 0x7b, PrivateKeyID: 0x64, Bech32Prefix: "smn", HDPrivateKeyID: [4]byte{0x04, 0x20, 0xb9, 0x00}, HDPublicKeyID: [4]byte{0x04, 0x20, 0xbd, 0x3a}, HDCoinType: 115, }
SimNetParams defines the network parameters for the simulation test Bitcoin network. This network is similar to the normal test network except it is intended for private use within a group of individuals doing simulation testing. The functionality is intended to differ in that the only nodes which are specifically specified are used to create the network rather than following normal discovery rules. This is important as otherwise it would just turn into another public testnet.
var TestNet3Params = Params{ Name: "testnet3", Net: wire.TestNet3, DefaultPort: "18333", DNSSeeds: []string{ "testnet-seed.bitcoin.schildbach.de", "testnet-seed.bitcoin.petertodd.org", "testnet-seed.bluematt.me", }, GenesisBlock: &testNet3GenesisBlock, GenesisHash: &testNet3GenesisHash, PowLimit: testNet3PowLimit, PowLimitBits: 0x1d00ffff, CoinbaseMaturity: 100, SubsidyReductionInterval: 210000, TargetTimespan: time.Hour * 24 * 14, TargetTimePerBlock: time.Minute * 10, RetargetAdjustmentFactor: 4, ReduceMinDifficulty: true, MinDiffReductionTime: time.Minute * 20, GenerateSupported: false, Checkpoints: []Checkpoint{ {546, newHashFromStr("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70")}, }, BlockEnforceNumRequired: 51, BlockRejectNumRequired: 75, BlockUpgradeNumToCheck: 100, RelayNonStdTxs: true, PubKeyHashAddrID: 0x6f, ScriptHashAddrID: 0xc4, Bech32Prefix: "tb", PrivateKeyID: 0xef, HDPrivateKeyID: [4]byte{0x04, 0x35, 0x83, 0x94}, HDPublicKeyID: [4]byte{0x04, 0x35, 0x87, 0xcf}, HDCoinType: 1, }
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 VertcoinParams = Params{ Name: "vtc", DefaultPort: "5889", DNSSeeds: []string{ "fr1.vtconline.org", "uk1.vtconline.org", "useast1.vtconline.org", "vtc.alwayshashing.com", "crypto.office-on-the.net", "p2pool.kosmoplovci.org", }, GenesisBlock: &simNetGenesisBlock, GenesisHash: &genesisHash, PowLimit: liteCoinTestNet4PowLimit, PowLimitBits: 0x1e0fffff, CoinbaseMaturity: 120, SubsidyReductionInterval: 840000, TargetTimespan: time.Second * 302400, TargetTimePerBlock: time.Second * 150, RetargetAdjustmentFactor: 4, ReduceMinDifficulty: false, MinDiffReductionTime: time.Second * 150 * 2, GenerateSupported: false, Checkpoints: []Checkpoint{ {0, newHashFromStr("4d96a915f49d40b1e5c2844d1ee2dccb90013a990ccea12c492d22110489f0c4")}, {24200, newHashFromStr("d7ed819858011474c8b0cae4ad0b9bdbb745becc4c386bc22d1220cc5a4d1787")}, {65000, newHashFromStr("9e673a69c35a423f736ab66f9a195d7c42f979847a729c0f3cef2c0b8b9d0289")}, {84065, newHashFromStr("a904170a5a98109b2909379d9bc03ef97a6b44d5dafbc9084b8699b0cba5aa98")}, {228023, newHashFromStr("15c94667a9e941359d2ee6527e2876db1b5e7510a5ded3885ca02e7e0f516b51")}, {346992, newHashFromStr("f1714fa4c7990f4b3d472eb22132891ccd3c7ad7208e2d1ab15bde68854fb0ee")}, {347269, newHashFromStr("fa1e592b7ea2aa97c5f20ccd7c40f3aaaeb31d1232c978847a79f28f83b6c22a")}, {430000, newHashFromStr("2f5703cf7b6f956b84fd49948cbf49dc164cfcb5a7b55903b1c4f53bc7851611")}, {516999, newHashFromStr("572ed47da461743bcae526542053e7bc532de299345e4f51d77786f2870b7b28")}, {627610, newHashFromStr("6000a787f2d8bb77d4f491a423241a4cc8439d862ca6cec6851aba4c79ccfedc")}, }, BlockEnforceNumRequired: 1512, BlockRejectNumRequired: 1915, BlockUpgradeNumToCheck: 2016, RelayNonStdTxs: true, PubKeyHashAddrID: 0x47, ScriptHashAddrID: 0x05, Bech32Prefix: "vtc", PrivateKeyID: 0x80, HDPrivateKeyID: [4]byte{0x04, 0x35, 0x83, 0x94}, HDPublicKeyID: [4]byte{0x04, 0x35, 0x87, 0xcf}, HDCoinType: 28, }
var VertcoinTestNetParams = Params{ Name: "vtctest", DefaultPort: "15889", DNSSeeds: []string{ "fr1.vtconline.org", }, GenesisBlock: &simNetGenesisBlock, GenesisHash: &genesisHash, PowLimit: liteCoinTestNet4PowLimit, PowLimitBits: 0x1e0fffff, CoinbaseMaturity: 120, SubsidyReductionInterval: 840000, TargetTimespan: time.Second * 302400, TargetTimePerBlock: time.Second * 150, RetargetAdjustmentFactor: 4, ReduceMinDifficulty: true, MinDiffReductionTime: time.Second * 150 * 2, GenerateSupported: false, Checkpoints: []Checkpoint{}, BlockEnforceNumRequired: 26, BlockRejectNumRequired: 49, BlockUpgradeNumToCheck: 50, RelayNonStdTxs: true, PubKeyHashAddrID: 0x4a, ScriptHashAddrID: 0xc4, Bech32Prefix: "tvtc", PrivateKeyID: 0xef, HDPrivateKeyID: [4]byte{0x04, 0x35, 0x83, 0x94}, HDPublicKeyID: [4]byte{0x04, 0x35, 0x87, 0xcf}, HDCoinType: 65536, }
Functions ¶
func HDPrivateKeyToPublicKeyID ¶
HDPrivateKeyToPublicKeyID accepts a private hierarchical deterministic extended key id and returns the associated public key id. When the provided id is not registered, the ErrUnknownHDKeyID error will be returned.
func IsPubKeyHashAddrID ¶
IsPubKeyHashAddrID returns whether the id is an identifier known to prefix a pay-to-pubkey-hash address on any default or registered network. This is used when decoding an address string into a specific address type. It is up to the caller to check both this and IsScriptHashAddrID and decide whether an address is a pubkey hash address, script hash address, neither, or undeterminable (if both return true).
func IsScriptHashAddrID ¶
IsScriptHashAddrID returns whether the id is an identifier known to prefix a pay-to-script-hash address on any default or registered network. This is used when decoding an address string into a specific address type. It is up to the caller to check both this and IsPubKeyHashAddrID and decide whether an address is a pubkey hash address, script hash address, neither, or undeterminable (if both return true).
func PrefixToCoinType ¶
PrefixToCoinType returns the HDCoinType for a params set given the bech32 prefix. If that prefix isn't registered, it returns an error.
func Register ¶
Register registers the network parameters for a Bitcoin network. This may error with ErrDuplicateNet if the network is already registered (either due to a previous Register call, or the network being one of the default networks).
Network parameters should be registered into this package by a main package as early as possible. Then, library packages may lookup networks or network parameters based on inputs and work regardless of the network being standard or not.
Types ¶
type Checkpoint ¶
Checkpoint identifies a known good point in the block chain. Using checkpoints allows a few optimizations for old blocks during initial download and also prevents forks from old blocks.
Each checkpoint is selected based upon several factors. See the documentation for blockchain.IsCheckpointCandidate for details on the selection criteria.
type Params ¶
type Params struct {
// Name defines a human-readable identifier for the network.
Name string
// Net defines the magic bytes used to identify the network.
Net wire.BitcoinNet
// DefaultPort defines the default peer-to-peer port for the network.
DefaultPort string
// DNSSeeds defines a list of DNS seeds for the network that are used
// as one method to discover peers.
DNSSeeds []string
// GenesisBlock defines the first block of the chain.
GenesisBlock *wire.MsgBlock
// GenesisHash is the starting block hash.
GenesisHash *chainhash.Hash
// PowLimit defines the highest allowed proof of work value for a block
// as a uint256.
PowLimit *big.Int
// PowLimitBits defines the highest allowed proof of work value for a
// block in compact form.
PowLimitBits uint32
// CoinbaseMaturity is the number of blocks required before newly mined
// coins (coinbase transactions) can be spent.
CoinbaseMaturity uint16
// SubsidyReductionInterval is the interval of blocks before the subsidy
// is reduced.
SubsidyReductionInterval int32
// TargetTimespan is the desired amount of time that should elapse
// before the block difficulty requirement is examined to determine how
// it should be changed in order to maintain the desired block
// generation rate.
TargetTimespan time.Duration
// TargetTimePerBlock is the desired amount of time to generate each
// block.
TargetTimePerBlock time.Duration
// RetargetAdjustmentFactor is the adjustment factor used to limit
// the minimum and maximum amount of adjustment that can occur between
// difficulty retargets.
RetargetAdjustmentFactor int64
// ReduceMinDifficulty defines whether the network should reduce the
// minimum required difficulty after a long enough period of time has
// passed without finding a block. This is really only useful for test
// networks and should not be set on a main network.
ReduceMinDifficulty bool
// MinDiffReductionTime is the amount of time after which the minimum
// required difficulty should be reduced when a block hasn't been found.
//
// NOTE: This only applies if ReduceMinDifficulty is true.
MinDiffReductionTime time.Duration
// GenerateSupported specifies whether or not CPU mining is allowed.
GenerateSupported bool
// Checkpoints ordered from oldest to newest.
Checkpoints []Checkpoint
// Enforce current block version once network has
// upgraded. This is part of BIP0034.
BlockEnforceNumRequired uint64
// Reject previous block versions once network has
// upgraded. This is part of BIP0034.
BlockRejectNumRequired uint64
// The number of nodes to check. This is part of BIP0034.
BlockUpgradeNumToCheck uint64
// Mempool parameters
RelayNonStdTxs bool
// Address encoding magics
PubKeyHashAddrID byte // First byte of a P2PKH address
ScriptHashAddrID byte // First byte of a P2SH address
PrivateKeyID byte // First byte of a WIF private key
Bech32Prefix string // HRP for bech32 address
// BIP32 hierarchical deterministic extended key magics
HDPrivateKeyID [4]byte
HDPublicKeyID [4]byte
// BIP44 coin type used in the hierarchical deterministic path for
// address generation.
HDCoinType uint32
// Some spinoff coins such as "bitcoin cash" and "bitcoin gold"
// have implemented a "forkID" for mixing into the sighash
ForkID uint32
}
Params defines a Bitcoin network by its parameters. These parameters may be used by Bitcoin applications to differentiate networks as well as addresses and keys for one network from those intended for use on another network.
Source Files