555 lines
18 KiB
Go
555 lines
18 KiB
Go
// Copyright (c) 2014-2016 The btcsuite developers
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// Copyright (c) 2015-2023 The Decred developers
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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package chaincfg
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import (
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"math/big"
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"time"
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"github.com/decred/dcrd/chaincfg/chainhash"
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"github.com/decred/dcrd/wire"
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)
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// TestNet3Params return the network parameters for the test currency network.
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// This network is sometimes simply called "testnet".
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// This is the third public iteration of testnet.
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func TestNet3Params() *Params {
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// testNetPowLimit is the highest proof of work value a Decred block
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// can have for the test network. It is the value 2^232 - 1.
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testNetPowLimit := new(big.Int).Sub(new(big.Int).Lsh(bigOne, 232), bigOne)
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// testNetPowLimitBits is the test network proof of work limit in its
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// compact representation.
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//
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// Note that due to the limited precision of the compact representation,
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// this is not exactly equal to the pow limit. It is the value:
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//
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// 0x000000ffff000000000000000000000000000000000000000000000000000000
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const testNetPowLimitBits = 0x1e00ffff // 503382015
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// genesisBlock defines the genesis block of the block chain which serves as
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// the public transaction ledger for the test network (version 3).
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genesisBlock := wire.MsgBlock{
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Header: wire.BlockHeader{
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Version: 6,
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PrevBlock: chainhash.Hash{},
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// MerkleRoot: Calculated below.
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Timestamp: time.Unix(1533513600, 0), // 2018-08-06 00:00:00 +0000 UTC
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Bits: testNetPowLimitBits, // Difficulty 1
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SBits: 20000000,
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Nonce: 0x18aea41a,
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StakeVersion: 6,
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},
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Transactions: []*wire.MsgTx{{
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SerType: wire.TxSerializeFull,
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Version: 1,
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TxIn: []*wire.TxIn{{
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// Fully null.
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PreviousOutPoint: wire.OutPoint{
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Hash: chainhash.Hash{},
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Index: 0xffffffff,
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Tree: 0,
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},
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SignatureScript: hexDecode("0000"),
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Sequence: 0xffffffff,
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BlockHeight: wire.NullBlockHeight,
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BlockIndex: wire.NullBlockIndex,
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ValueIn: wire.NullValueIn,
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}},
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TxOut: []*wire.TxOut{{
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Version: 0x0000,
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Value: 0x00000000,
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PkScript: hexDecode("801679e98561ada96caec2949a5d41c4cab3851e" +
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"b740d951c10ecbcf265c1fd9"),
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}},
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LockTime: 0,
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Expiry: 0,
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}},
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}
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// NOTE: This really should be TxHashFull, but it was defined incorrectly.
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//
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// Since the field is not used in any validation code, it does not have any
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// adverse effects, but correcting it would result in changing the block
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// hash which would invalidate the entire test network. The next test
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// network should set the value properly.
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genesisBlock.Header.MerkleRoot = genesisBlock.Transactions[0].TxHash()
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return &Params{
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Name: "testnet3",
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Net: wire.TestNet3,
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DefaultPort: "19108",
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DNSSeeds: []DNSSeed{
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{"testnet-seed.decred.mindcry.org", true},
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{"testnet-seed.decred.netpurgatory.com", true},
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{"testnet-seed.decred.org", true},
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},
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// Chain parameters.
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//
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// Note that the minimum difficulty reduction parameter only applies up
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// to and including block height 962927.
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GenesisBlock: &genesisBlock,
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GenesisHash: genesisBlock.BlockHash(),
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PowLimit: testNetPowLimit,
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PowLimitBits: testNetPowLimitBits,
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ReduceMinDifficulty: true,
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MinDiffReductionTime: time.Minute * 10, // ~99.3% chance to be mined before reduction
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GenerateSupported: true,
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MaximumBlockSizes: []int{1310720},
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MaxTxSize: 1000000,
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TargetTimePerBlock: time.Minute * 2,
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// Version 1 difficulty algorithm (EMA + BLAKE256) parameters.
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WorkDiffAlpha: 1,
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WorkDiffWindowSize: 144,
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WorkDiffWindows: 20,
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TargetTimespan: time.Minute * 2 * 144, // TimePerBlock * WindowSize
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RetargetAdjustmentFactor: 4,
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// Version 2 difficulty algorithm (ASERT + BLAKE3) parameters.
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WorkDiffV2Blake3StartBits: testNetPowLimitBits,
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WorkDiffV2HalfLifeSecs: 720, // 6 * TimePerBlock (12 minutes)
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// Subsidy parameters.
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BaseSubsidy: 2500000000, // 25 Coin
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MulSubsidy: 100,
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DivSubsidy: 101,
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SubsidyReductionInterval: 2048,
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WorkRewardProportion: 6,
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WorkRewardProportionV2: 1,
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StakeRewardProportion: 3,
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StakeRewardProportionV2: 8,
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BlockTaxProportion: 1,
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// AssumeValid is the hash of a block that has been externally verified
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// to be valid. It allows several validation checks to be skipped for
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// blocks that are both an ancestor of the assumed valid block and an
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// ancestor of the best header. It is also used to determine the old
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// forks rejection checkpoint. This is intended to be updated
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// periodically with new releases.
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//
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// Block 00000000787986d95cef3b42beee6cc3c8065f6e5338e17854b1ff4d16b6a396
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// Height: 1138320
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AssumeValid: *newHashFromStr("00000000787986d95cef3b42beee6cc3c8065f6e5338e17854b1ff4d16b6a396"),
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// MinKnownChainWork is the minimum amount of known total work for the
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// chain at a given point in time. This is intended to be updated
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// periodically with new releases.
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//
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// Block 000000001ffc25cb2cd323c82c5838971a9b191c2d4cf9530e1582fcb8b4794e
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// Height: 1148390
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MinKnownChainWork: hexToBigInt("000000000000000000000000000000000000000000000000f376cd394f056477"),
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// Consensus rule change deployments.
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//
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// The miner confirmation window is defined as:
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// target proof of work timespan / target proof of work spacing
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RuleChangeActivationQuorum: 2520, // 10 % of RuleChangeActivationInterval * TicketsPerBlock
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RuleChangeActivationMultiplier: 3, // 75%
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RuleChangeActivationDivisor: 4,
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RuleChangeActivationInterval: 5040, // 1 week
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Deployments: map[uint32][]ConsensusDeployment{
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5: {{
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Vote: Vote{
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Id: VoteIDSDiffAlgorithm,
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Description: "Change stake difficulty algorithm as defined in DCP0001",
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Mask: 0x0006, // Bits 1 and 2
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Choices: []Choice{{
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Id: "abstain",
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Description: "abstain voting for change",
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Bits: 0x0000,
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IsAbstain: true,
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IsNo: false,
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}, {
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Id: "no",
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Description: "keep the existing algorithm",
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Bits: 0x0002, // Bit 1
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IsAbstain: false,
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IsNo: true,
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}, {
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Id: "yes",
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Description: "change to the new algorithm",
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Bits: 0x0004, // Bit 2
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IsAbstain: false,
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IsNo: false,
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}},
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},
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ForcedChoiceID: "yes",
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StartTime: 1493164800, // Apr 26th, 2017
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ExpireTime: 1524700800, // Apr 26th, 2018
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}},
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6: {{
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Vote: Vote{
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Id: VoteIDLNFeatures,
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Description: "Enable features defined in DCP0002 and DCP0003 necessary to support Lightning Network (LN)",
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Mask: 0x0006, // Bits 1 and 2
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Choices: []Choice{{
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Id: "abstain",
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Description: "abstain voting for change",
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Bits: 0x0000,
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IsAbstain: true,
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IsNo: false,
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}, {
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Id: "no",
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Description: "keep the existing consensus rules",
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Bits: 0x0002, // Bit 1
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IsAbstain: false,
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IsNo: true,
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}, {
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Id: "yes",
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Description: "change to the new consensus rules",
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Bits: 0x0004, // Bit 2
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IsAbstain: false,
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IsNo: false,
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}},
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},
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ForcedChoiceID: "yes",
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StartTime: 1505260800, // Sep 13th, 2017
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ExpireTime: 1536796800, // Sep 13th, 2018
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}},
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7: {{
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Vote: Vote{
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Id: VoteIDFixLNSeqLocks,
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Description: "Modify sequence lock handling as defined in DCP0004",
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Mask: 0x0006, // Bits 1 and 2
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Choices: []Choice{{
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Id: "abstain",
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Description: "abstain voting for change",
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Bits: 0x0000,
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IsAbstain: true,
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IsNo: false,
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}, {
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Id: "no",
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Description: "keep the existing consensus rules",
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Bits: 0x0002, // Bit 1
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IsAbstain: false,
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IsNo: true,
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}, {
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Id: "yes",
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Description: "change to the new consensus rules",
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Bits: 0x0004, // Bit 2
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IsAbstain: false,
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IsNo: false,
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}},
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},
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StartTime: 1548633600, // Jan 28th, 2019
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ExpireTime: 1580169600, // Jan 28th, 2020
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}},
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8: {{
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Vote: Vote{
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Id: VoteIDHeaderCommitments,
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Description: "Enable header commitments as defined in DCP0005",
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Mask: 0x0006, // Bits 1 and 2
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Choices: []Choice{{
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Id: "abstain",
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Description: "abstain voting for change",
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Bits: 0x0000,
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IsAbstain: true,
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IsNo: false,
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}, {
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Id: "no",
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Description: "keep the existing consensus rules",
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Bits: 0x0002, // Bit 1
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IsAbstain: false,
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IsNo: true,
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}, {
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Id: "yes",
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Description: "change to the new consensus rules",
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Bits: 0x0004, // Bit 2
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IsAbstain: false,
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IsNo: false,
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}},
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},
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StartTime: 1567641600, // Sep 5th, 2019
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ExpireTime: 1599264000, // Sep 5th, 2020
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}},
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9: {{
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Vote: Vote{
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Id: VoteIDTreasury,
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Description: "Enable decentralized Treasury opcodes as defined in DCP0006",
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Mask: 0x0006, // Bits 1 and 2
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Choices: []Choice{{
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Id: "abstain",
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Description: "abstain voting for change",
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Bits: 0x0000,
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IsAbstain: true,
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IsNo: false,
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}, {
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Id: "no",
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Description: "keep the existing consensus rules",
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Bits: 0x0002, // Bit 1
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IsAbstain: false,
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IsNo: true,
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}, {
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Id: "yes",
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Description: "change to the new consensus rules",
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Bits: 0x0004, // Bit 2
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IsAbstain: false,
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IsNo: false,
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}},
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},
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StartTime: 1596240000, // Aug 1st, 2020
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ExpireTime: 1627776000, // Aug 1st, 2021
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}},
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10: {{
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Vote: Vote{
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Id: VoteIDRevertTreasuryPolicy,
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Description: "Change maximum treasury expenditure policy as defined in DCP0007",
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Mask: 0x0006, // Bits 1 and 2
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Choices: []Choice{{
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Id: "abstain",
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Description: "abstain voting for change",
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Bits: 0x0000,
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IsAbstain: true,
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IsNo: false,
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}, {
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Id: "no",
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Description: "keep the existing consensus rules",
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Bits: 0x0002, // Bit 1
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IsAbstain: false,
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IsNo: true,
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}, {
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Id: "yes",
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Description: "change to the new consensus rules",
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Bits: 0x0004, // Bit 2
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IsAbstain: false,
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IsNo: false,
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}},
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},
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StartTime: 1631750400, // Sep 16th, 2021
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ExpireTime: 1694822400, // Sep 16th, 2023
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}, {
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Vote: Vote{
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Id: VoteIDExplicitVersionUpgrades,
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Description: "Enable explicit version upgrades as defined in DCP0008",
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Mask: 0x0018, // Bits 3 and 4
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Choices: []Choice{{
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Id: "abstain",
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Description: "abstain from voting",
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Bits: 0x0000,
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IsAbstain: true,
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IsNo: false,
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}, {
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Id: "no",
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Description: "keep the existing consensus rules",
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Bits: 0x0008, // Bit 3
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IsAbstain: false,
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IsNo: true,
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}, {
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Id: "yes",
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Description: "change to the new consensus rules",
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Bits: 0x0010, // Bit 4
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IsAbstain: false,
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IsNo: false,
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}},
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},
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StartTime: 1631750400, // Sep 16th, 2021
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ExpireTime: 1694822400, // Sep 16th, 2023
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}, {
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Vote: Vote{
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Id: VoteIDAutoRevocations,
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Description: "Enable automatic ticket revocations as defined in DCP0009",
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Mask: 0x0060, // Bits 5 and 6
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Choices: []Choice{{
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Id: "abstain",
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Description: "abstain voting for change",
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Bits: 0x0000,
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IsAbstain: true,
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IsNo: false,
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}, {
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Id: "no",
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Description: "keep the existing consensus rules",
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Bits: 0x0020, // Bit 5
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IsAbstain: false,
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IsNo: true,
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}, {
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Id: "yes",
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Description: "change to the new consensus rules",
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Bits: 0x0040, // Bit 6
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IsAbstain: false,
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IsNo: false,
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}},
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},
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StartTime: 1631750400, // Sep 16th, 2021
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ExpireTime: 1694822400, // Sep 16th, 2023
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}, {
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Vote: Vote{
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Id: VoteIDChangeSubsidySplit,
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Description: "Change block reward subsidy split to 10/80/10 as defined in DCP0010",
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Mask: 0x0180, // Bits 7 and 8
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Choices: []Choice{{
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Id: "abstain",
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Description: "abstain from voting",
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Bits: 0x0000,
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IsAbstain: true,
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IsNo: false,
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}, {
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Id: "no",
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Description: "keep the existing consensus rules",
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Bits: 0x0080, // Bit 7
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IsAbstain: false,
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IsNo: true,
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}, {
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Id: "yes",
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Description: "change to the new consensus rules",
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Bits: 0x0100, // Bit 8
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IsAbstain: false,
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IsNo: false,
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}},
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},
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StartTime: 1631750400, // Sep 16th, 2021
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ExpireTime: 1694822400, // Sep 16th, 2023
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}},
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11: {{
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Vote: Vote{
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Id: VoteIDBlake3Pow,
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Description: "Change proof of work hashing algorithm to BLAKE3 as defined in DCP0011",
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Mask: 0x0006, // Bits 1 and 2
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Choices: []Choice{{
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Id: "abstain",
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Description: "abstain voting for change",
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Bits: 0x0000,
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IsAbstain: true,
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IsNo: false,
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}, {
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Id: "no",
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Description: "keep the existing consensus rules",
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Bits: 0x0002, // Bit 1
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IsAbstain: false,
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IsNo: true,
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}, {
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Id: "yes",
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Description: "change to the new consensus rules",
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Bits: 0x0004, // Bit 2
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IsAbstain: false,
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IsNo: false,
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}},
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},
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StartTime: 1682294400, // Apr 24th, 2023
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ExpireTime: 1745452800, // Apr 24th, 2025
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}, {
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Vote: Vote{
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Id: VoteIDChangeSubsidySplitR2,
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Description: "Change block reward subsidy split to 1/89/10 as defined in DCP0012",
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Mask: 0x0060, // Bits 5 and 6
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Choices: []Choice{{
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Id: "abstain",
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Description: "abstain voting for change",
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Bits: 0x0000,
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IsAbstain: true,
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IsNo: false,
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}, {
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Id: "no",
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Description: "keep the existing consensus rules",
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Bits: 0x0020, // Bit 5
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IsAbstain: false,
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IsNo: true,
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}, {
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Id: "yes",
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Description: "change to the new consensus rules",
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Bits: 0x0040, // Bit 6
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IsAbstain: false,
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IsNo: false,
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}},
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},
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StartTime: 1682294400, // Apr 24th, 2023
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ExpireTime: 1745452800, // Apr 24th, 2025
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}},
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},
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// Enforce current block version once majority of the network has
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// upgraded.
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// 51% (51 / 100)
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// Reject previous block versions once a majority of the network has
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// upgraded.
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// 75% (75 / 100)
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BlockEnforceNumRequired: 51,
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BlockRejectNumRequired: 75,
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BlockUpgradeNumToCheck: 100,
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// AcceptNonStdTxs is a mempool param to either accept and relay non
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// standard txs to the network or reject them
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AcceptNonStdTxs: true,
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// Address encoding magics
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NetworkAddressPrefix: "T",
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PubKeyAddrID: [2]byte{0x28, 0xf7}, // starts with Tk
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PubKeyHashAddrID: [2]byte{0x0f, 0x21}, // starts with Ts
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PKHEdwardsAddrID: [2]byte{0x0f, 0x01}, // starts with Te
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PKHSchnorrAddrID: [2]byte{0x0e, 0xe3}, // starts with TS
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ScriptHashAddrID: [2]byte{0x0e, 0xfc}, // starts with Tc
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PrivateKeyID: [2]byte{0x23, 0x0e}, // starts with Pt
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// BIP32 hierarchical deterministic extended key magics
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HDPrivateKeyID: [4]byte{0x04, 0x35, 0x83, 0x97}, // starts with tprv
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HDPublicKeyID: [4]byte{0x04, 0x35, 0x87, 0xd1}, // starts with tpub
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// BIP44 coin type used in the hierarchical deterministic path for
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// address generation.
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SLIP0044CoinType: 1, // SLIP0044, Testnet (all coins)
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LegacyCoinType: 11, // for backwards compatibility
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// Decred PoS parameters
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MinimumStakeDiff: 20000000, // 0.2 Coin
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TicketPoolSize: 1024,
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TicketsPerBlock: 5,
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TicketMaturity: 16,
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TicketExpiry: 6144, // 6*TicketPoolSize
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CoinbaseMaturity: 16,
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SStxChangeMaturity: 1,
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TicketPoolSizeWeight: 4,
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StakeDiffAlpha: 1,
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StakeDiffWindowSize: 144,
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StakeDiffWindows: 20,
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StakeVersionInterval: 144 * 2 * 7, // ~1 week
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MaxFreshStakePerBlock: 20, // 4*TicketsPerBlock
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StakeEnabledHeight: 16 + 16, // CoinbaseMaturity + TicketMaturity
|
|
StakeValidationHeight: 768, // Arbitrary
|
|
StakeBaseSigScript: []byte{0x00, 0x00},
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|
StakeMajorityMultiplier: 3,
|
|
StakeMajorityDivisor: 4,
|
|
|
|
// Decred organization related parameters.
|
|
// Organization address is TcrypGAcGCRVXrES7hWqVZb5oLJKCZEtoL1.
|
|
OrganizationPkScript: hexDecode("a914d585cd7426d25b4ea5faf1e6987aacfeda3db94287"),
|
|
OrganizationPkScriptVersion: 0,
|
|
BlockOneLedger: tokenPayouts_TestNet3Params(),
|
|
|
|
// Sanctioned Politeia keys.
|
|
PiKeys: [][]byte{
|
|
hexDecode("03beca9bbd227ca6bb5a58e03a36ba2b52fff09093bd7a50aee1193bccd257fb8a"),
|
|
hexDecode("03e647c014f55265da506781f0b2d67674c35cb59b873d9926d483c4ced9a7bbd3"),
|
|
},
|
|
|
|
// ~2 hours for tspend inclusion
|
|
TreasuryVoteInterval: 60,
|
|
|
|
// ~4.8 hours for short circuit approval
|
|
TreasuryVoteIntervalMultiplier: 4,
|
|
|
|
// ~1 day policy window
|
|
TreasuryExpenditureWindow: 4,
|
|
|
|
// ~6 day policy window check
|
|
TreasuryExpenditurePolicy: 3,
|
|
|
|
// 10000 dcr/tew as expense bootstrap
|
|
TreasuryExpenditureBootstrap: 10000 * 1e8,
|
|
|
|
TreasuryVoteQuorumMultiplier: 1, // 20% quorum required
|
|
TreasuryVoteQuorumDivisor: 5,
|
|
TreasuryVoteRequiredMultiplier: 3, // 60% yes votes required
|
|
TreasuryVoteRequiredDivisor: 5,
|
|
|
|
seeders: []string{
|
|
"testnet-seed-1.decred.org",
|
|
"testnet-seed-2.decred.org",
|
|
"testnet-seed.dcrdata.org",
|
|
"testnet-seed.jholdstock.uk",
|
|
},
|
|
}
|
|
}
|