consensus/general.go

   1 package consensus
   2
   3 import (
   4         "encoding/binary"
   5         "strings"
   6
   7         "github.com/vapor/crypto/ed25519/chainkd"
   8         "github.com/vapor/protocol/bc"
   9 )
  10
  11 //consensus variables
  12 const (
  13         // Max gas that one block contains
  14         MaxBlockGas      = uint64(10000000)
  15         VMGasRate        = int64(200)
  16         StorageGasRate   = int64(1)
  17         MaxGasAmount     = int64(200000)
  18         DefaultGasCredit = int64(30000)
  19
  20         //config parameter for coinbase reward
  21         CoinbasePendingBlockNumber = uint64(100)
  22         subsidyReductionInterval   = uint64(840000)
  23         baseSubsidy                = uint64(0)
  24         //baseSubsidy                = uint64(41250000000)
  25         //InitialBlockSubsidy        = uint64(140700041250000000)
  26         InitialBlockSubsidy = uint64(0)
  27
  28         // config for pow mining
  29         BlocksPerRetarget     = uint64(2016)
  30         TargetSecondsPerBlock = uint64(150)
  31         SeedPerRetarget       = uint64(256)
  32
  33         // MaxTimeOffsetSeconds is the maximum number of seconds a block time is allowed to be ahead of the current time
  34         MaxTimeOffsetSeconds = uint64(60 * 60)
  35         MedianTimeBlocks     = 11
  36
  37         PayToWitnessPubKeyHashDataSize = 20
  38         PayToWitnessScriptHashDataSize = 32
  39         CoinbaseArbitrarySizeLimit     = 128
  40
  41         BTMAlias = "BTM"
  42 )
  43
  44 // BTMAssetID is BTM's asset id, the soul asset of Bytom
  45 var BTMAssetID = &bc.AssetID{
  46         V0: binary.BigEndian.Uint64([]byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}),
  47         V1: binary.BigEndian.Uint64([]byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}),
  48         V2: binary.BigEndian.Uint64([]byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}),
  49         V3: binary.BigEndian.Uint64([]byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}),
  50 }
  51
  52 // InitialSeed is SHA3-256 of Byte[0^32]
  53 var InitialSeed = &bc.Hash{
  54         V0: uint64(11412844483649490393),
  55         V1: uint64(4614157290180302959),
  56         V2: uint64(1780246333311066183),
  57         V3: uint64(9357197556716379726),
  58 }
  59
  60 // BTMDefinitionMap is the ....
  61 var BTMDefinitionMap = map[string]interface{}{
  62         "name":        BTMAlias,
  63         "symbol":      BTMAlias,
  64         "decimals":    8,
  65         "description": `Bytom Official Issue`,
  66 }
  67
  68 const (
  69         Coin     = 100000000
  70         MaxMoney = 2100000000 * Coin
  71 )
  72
  73 func MoneyRange(nValue uint64) bool { return nValue >= 0 && nValue <= MaxMoney }
  74
  75 // BlockSubsidy calculate the coinbase rewards on given block height
  76 func BlockSubsidy(height uint64) uint64 {
  77         if height == 0 {
  78                 return InitialBlockSubsidy
  79         }
  80         return baseSubsidy >> uint(height/subsidyReductionInterval)
  81 }
  82
  83 // IsBech32SegwitPrefix returns whether the prefix is a known prefix for segwit
  84 // addresses on any default or registered network.  This is used when decoding
  85 // an address string into a specific address type.
  86 func IsBech32SegwitPrefix(prefix string, params *Params) bool {
  87         prefix = strings.ToLower(prefix)
  88         return prefix == params.Bech32HRPSegwit+"1"
  89 }
  90
  91 func IsBytomBech32SegwitPrefix(prefix string, params *Params) bool {
  92         prefix = strings.ToLower(prefix)
  93         return prefix == params.BytomBech32HRPSegwit+"1"
  94 }
  95
  96 // Checkpoint identifies a known good point in the block chain.  Using
  97 // checkpoints allows a few optimizations for old blocks during initial download
  98 // and also prevents forks from old blocks.
  99 type Checkpoint struct {
 100         Height uint64
 101         Hash   bc.Hash
 102 }
 103
 104 // Params store the config for different network
 105 type Params struct {
 106         // Name defines a human-readable identifier for the network.
 107         Name                   string
 108         Bech32HRPSegwit        string
 109         BytomBech32HRPSegwit   string
 110         Checkpoints            []Checkpoint
 111         FedpegXPubs            []chainkd.XPub
 112         SignBlockXPubs         []chainkd.XPub
 113         PeginMinDepth          uint64
 114         ParentGenesisBlockHash string
 115         Signer                 string
 116 }
 117
 118 // ActiveNetParams is ...
 119 var ActiveNetParams = MainNetParams
 120
 121 // NetParams is the correspondence between chain_id and Params
 122 var NetParams = map[string]Params{
 123         "mainnet": MainNetParams,
 124         "wisdom":  TestNetParams,
 125         "solonet": SoloNetParams,
 126 }
 127
 128 // BytomMainNetParams is the config for production
 129 var MainNetParams = Params{
 130         Name:                 "main",
 131         Bech32HRPSegwit:      "vbm",
 132         BytomBech32HRPSegwit: "bm",
 133         Checkpoints: []Checkpoint{
 134                 {10000, bc.NewHash([32]byte{0x93, 0xe1, 0xeb, 0x78, 0x21, 0xd2, 0xb4, 0xad, 0x0f, 0x5b, 0x1c, 0xea, 0x82, 0xe8, 0x43, 0xad, 0x8c, 0x09, 0x9a, 0xb6, 0x5d, 0x8f, 0x70, 0xc5, 0x84, 0xca, 0xa2, 0xdd, 0xf1, 0x74, 0x65, 0x2c})},
 135                 {20000, bc.NewHash([32]byte{0x7d, 0x38, 0x61, 0xf3, 0x2c, 0xc0, 0x03, 0x81, 0xbb, 0xcd, 0x9a, 0x37, 0x6f, 0x10, 0x5d, 0xfe, 0x6f, 0xfe, 0x2d, 0xa5, 0xea, 0x88, 0xa5, 0xe3, 0x42, 0xed, 0xa1, 0x17, 0x9b, 0xa8, 0x0b, 0x7c})},
 136                 {30000, bc.NewHash([32]byte{0x32, 0x36, 0x06, 0xd4, 0x27, 0x2e, 0x35, 0x24, 0x46, 0x26, 0x7b, 0xe0, 0xfa, 0x48, 0x10, 0xa4, 0x3b, 0xb2, 0x40, 0xf1, 0x09, 0x51, 0x5b, 0x22, 0x9f, 0xf3, 0xc3, 0x83, 0x28, 0xaa, 0x4a, 0x00})},
 137                 {40000, bc.NewHash([32]byte{0x7f, 0xe2, 0xde, 0x11, 0x21, 0xf3, 0xa9, 0xa0, 0xee, 0x60, 0x8d, 0x7d, 0x4b, 0xea, 0xcc, 0x33, 0xfe, 0x41, 0x25, 0xdc, 0x2f, 0x26, 0xc2, 0xf2, 0x9c, 0x07, 0x17, 0xf9, 0xe4, 0x4f, 0x9d, 0x46})},
 138                 {50000, bc.NewHash([32]byte{0x5e, 0xfb, 0xdf, 0xf5, 0x35, 0x38, 0xa6, 0x0b, 0x75, 0x32, 0x02, 0x61, 0x83, 0x54, 0x34, 0xff, 0x3e, 0x82, 0x2e, 0xf8, 0x64, 0xae, 0x2d, 0xc7, 0x6c, 0x9d, 0x5e, 0xbd, 0xa3, 0xd4, 0x50, 0xcf})},
 139                 {62000, bc.NewHash([32]byte{0xd7, 0x39, 0x8f, 0x23, 0x57, 0xf9, 0x4c, 0xa0, 0x28, 0xa7, 0x00, 0x2b, 0x53, 0x9e, 0x51, 0x2d, 0x3e, 0xca, 0xc9, 0x22, 0x59, 0xfc, 0xd0, 0x3f, 0x67, 0x1a, 0x0a, 0xb1, 0x02, 0xbf, 0x2b, 0x03})},
 140                 {72000, bc.NewHash([32]byte{0x66, 0x02, 0x31, 0x19, 0xf1, 0x60, 0x35, 0x61, 0xa4, 0xf1, 0x38, 0x04, 0xcc, 0xe4, 0x59, 0x8f, 0x55, 0x39, 0xba, 0x22, 0xf2, 0x6d, 0x90, 0xbf, 0xc1, 0x87, 0xef, 0x98, 0xcc, 0x70, 0x4d, 0x94})},
 141                 {83700, bc.NewHash([32]byte{0x7f, 0x26, 0xc9, 0x11, 0xe8, 0x46, 0xd0, 0x6e, 0x36, 0xbb, 0xac, 0xce, 0x99, 0xa2, 0x19, 0x89, 0x3f, 0xf7, 0x84, 0x2a, 0xcb, 0x44, 0x7f, 0xbb, 0x0e, 0x3b, 0xa3, 0x68, 0xd6, 0x2b, 0xe8, 0x0d})},
 142         },
 143 }
 144
 145 // BytomTestNetParams is the config for test-net
 146 var TestNetParams = Params{
 147         Name:                 "test",
 148         Bech32HRPSegwit:      "vtm",
 149         BytomBech32HRPSegwit: "tm",
 150         Checkpoints: []Checkpoint{
 151                 {10303, bc.NewHash([32]byte{0x3e, 0x94, 0x5d, 0x35, 0x70, 0x30, 0xd4, 0x3b, 0x3d, 0xe3, 0xdd, 0x80, 0x67, 0x29, 0x9a, 0x5e, 0x09, 0xf9, 0xfb, 0x2b, 0xad, 0x5f, 0x92, 0xc8, 0x69, 0xd1, 0x42, 0x39, 0x74, 0x9a, 0xd1, 0x1c})},
 152                 {40000, bc.NewHash([32]byte{0x6b, 0x13, 0x9a, 0x5b, 0x76, 0x77, 0x9b, 0xd4, 0x1c, 0xec, 0x53, 0x68, 0x44, 0xbf, 0xf4, 0x48, 0x94, 0x3d, 0x16, 0xe3, 0x9b, 0x2e, 0xe8, 0xa1, 0x0f, 0xa0, 0xbc, 0x7d, 0x2b, 0x17, 0x55, 0xfc})},
 153         },
 154 }
 155
 156 // BytomSoloNetParams is the config for test-net
 157 var SoloNetParams = Params{
 158         Name:                 "solo",
 159         Bech32HRPSegwit:      "vsm",
 160         BytomBech32HRPSegwit: "sm",
 161         Checkpoints:          []Checkpoint{},
 162 }