params-simnet.go

package chaincfg

import (
	"math"
	"time"

	"github.com/l0k18/pod/pkg/chain/wire"
)

// 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 routeable rules. This is important as otherwise it would just turn into another
// public testnet.
var SimNetParams = Params{
	Name:        "simnet",
	Net:         wire.SimNet,
	DefaultPort: "41047",
	DNSSeeds:    []DNSSeed{}, // NOTE: There must NOT be any seeds.
	// Chain parameters
	GenesisBlock:             &simNetGenesisBlock,
	GenesisHash:              &simNetGenesisHash,
	PowLimit:                 simNetPowLimit,
	PowLimitBits:             0x207fffff,
	BIP0034Height:            0, // Always active on simnet
	BIP0065Height:            0, // Always active on simnet
	BIP0066Height:            0, // Always active on simnet
	CoinbaseMaturity:         100,
	SubsidyReductionInterval: 210000,
	TargetTimespan:           30000, // 14 days
	TargetTimePerBlock:       300,   // 10 minutes
	RetargetAdjustmentFactor: 2,     // 25% less, 400% more
	ReduceMinDifficulty:      true,
	MinDiffReductionTime:     time.Minute * 10, // TargetTimePerBlock * 2
	GenerateSupported:        true,
	// Checkpoints ordered from oldest to newest.
	Checkpoints: nil,
	// Consensus rule change deployments.
	//
	// The miner confirmation window is defined as:
	//   target proof of work timespan / target proof of work spacing
	RuleChangeActivationThreshold: 75, // 75% of MinerConfirmationWindow
	MinerConfirmationWindow:       100,
	Deployments: [DefinedDeployments]ConsensusDeployment{
		DeploymentTestDummy: {
			BitNumber:  28,
			StartTime:  0,             // Always available for vote
			ExpireTime: math.MaxInt64, // Never expires
		},
		DeploymentCSV: {
			BitNumber:  0,
			StartTime:  0,             // Always available for vote
			ExpireTime: math.MaxInt64, // Never expires
		},
		DeploymentSegwit: {
			BitNumber:  1,
			StartTime:  0,             // Always available for vote
			ExpireTime: math.MaxInt64, // Never expires.
		},
	},
	// Mempool parameters
	RelayNonStdTxs: true,
	// Human-readable part for Bech32 encoded segwit addresses, as defined in
	// BIP 173.
	Bech32HRPSegwit: "sb", // always sb for sim net
	// Address encoding magics
	PubKeyHashAddrID:        0x3f, // starts with S
	ScriptHashAddrID:        0x7b, // starts with s
	PrivateKeyID:            0x64, // starts with 4 (uncompressed) or F (compressed)
	WitnessPubKeyHashAddrID: 0x19, // starts with Gg
	WitnessScriptHashAddrID: 0x28, // starts with ?
	// BIP32 hierarchical deterministic extended key magics
	HDPrivateKeyID: [4]byte{0x04, 0x20, 0xb9, 0x00}, // starts with sprv
	HDPublicKeyID:  [4]byte{0x04, 0x20, 0xbd, 0x3a}, // starts with spub
	// BIP44 coin type used in the hierarchical deterministic path for address generation.
	HDCoinType: 115, // ASCII for s
	// Parallelcoin specific difficulty adjustment parameters
	Interval:                100,
	AveragingInterval:       10, // Extend to target timespan to adjust better to hashpower (30000/300=100) post hardfork
	AveragingTargetTimespan: 10 * 300,
	MaxAdjustDown:           10,
	MaxAdjustUp:             20,
	TargetTimespanAdjDown:   300 * (100 + 10) / 100,
	MinActualTimespan:       10 * 300 * (100 - 20) / 100,
	MaxActualTimespan:       10 * 300 * (100 + 10) / 100,
	ScryptPowLimit:          &scryptPowLimit,
	ScryptPowLimitBits:      ScryptPowLimitBits,
}