github.com/dmmcquay/sia@v1.3.1-0.20180712220038-9f8d535311b9/types/constants.go (about)

     1  package types
     2  
     3  // constants.go contains the Sia constants. Depending on which build tags are
     4  // used, the constants will be initialized to different values.
     5  //
     6  // CONTRIBUTE: We don't have way to check that the non-test constants are all
     7  // sane, plus we have no coverage for them.
     8  
     9  import (
    10  	"math"
    11  	"math/big"
    12  	"time"
    13  
    14  	"github.com/NebulousLabs/Sia/build"
    15  )
    16  
    17  var (
    18  	// BlockFrequency is the desired number of seconds that
    19  	// should elapse, on average, between successive Blocks.
    20  	BlockFrequency BlockHeight
    21  	// BlockSizeLimit is the maximum size of a binary-encoded Block
    22  	// that is permitted by the consensus rules.
    23  	BlockSizeLimit = uint64(2e6)
    24  
    25  	// EndOfTime is value to be used when a date in the future is needed for
    26  	// validation
    27  	EndOfTime = time.Unix(0, math.MaxInt64)
    28  
    29  	// ExtremeFutureThreshold is a temporal limit beyond which Blocks are
    30  	// discarded by the consensus rules. When incoming Blocks are processed, their
    31  	// Timestamp is allowed to exceed the processor's current time by a small amount.
    32  	// But if the Timestamp is further into the future than ExtremeFutureThreshold,
    33  	// the Block is immediately discarded.
    34  	ExtremeFutureThreshold Timestamp
    35  	// FutureThreshold is a temporal limit beyond which Blocks are
    36  	// discarded by the consensus rules. When incoming Blocks are processed, their
    37  	// Timestamp is allowed to exceed the processor's current time by no more than
    38  	// FutureThreshold. If the excess duration is larger than FutureThreshold, but
    39  	// smaller than ExtremeFutureThreshold, the Block may be held in memory until
    40  	// the Block's Timestamp exceeds the current time by less than FutureThreshold.
    41  	FutureThreshold Timestamp
    42  	// GenesisBlock is the first block of the block chain
    43  	GenesisBlock Block
    44  
    45  	// GenesisID is used in many places. Calculating it once saves lots of
    46  	// redundant computation.
    47  	GenesisID BlockID
    48  
    49  	// GenesisSiafundAllocation is the set of SiafundOutputs created in the Genesis
    50  	// block.
    51  	GenesisSiafundAllocation []SiafundOutput
    52  	// GenesisTimestamp is the timestamp when genesis block was mined
    53  	GenesisTimestamp Timestamp
    54  	// InitialCoinbase is the coinbase reward of the Genesis block.
    55  	InitialCoinbase = uint64(300e3)
    56  	// MaturityDelay specifies the number of blocks that a maturity-required output
    57  	// is required to be on hold before it can be spent on the blockchain.
    58  	// Outputs are maturity-required if they are highly likely to be altered or
    59  	// invalidated in the event of a small reorg. One example is the block reward,
    60  	// as a small reorg may invalidate the block reward. Another example is a siafund
    61  	// payout, as a tiny reorg may change the value of the payout, and thus invalidate
    62  	// any transactions spending the payout. File contract payouts also are subject to
    63  	// a maturity delay.
    64  	MaturityDelay BlockHeight
    65  	// MaxTargetAdjustmentDown restrict how much the block difficulty is allowed to
    66  	// change in a single step, which is important to limit the effect of difficulty
    67  	// raising and lowering attacks.
    68  	MaxTargetAdjustmentDown *big.Rat
    69  	// MaxTargetAdjustmentUp restrict how much the block difficulty is allowed to
    70  	// change in a single step, which is important to limit the effect of difficulty
    71  	// raising and lowering attacks.
    72  	MaxTargetAdjustmentUp *big.Rat
    73  	// MedianTimestampWindow tells us how many blocks to look back when calculating
    74  	// the median timestamp over the previous n blocks. The timestamp of a block is
    75  	// not allowed to be less than or equal to the median timestamp of the previous n
    76  	// blocks, where for Sia this number is typically 11.
    77  	MedianTimestampWindow = uint64(11)
    78  	// MinimumCoinbase is the minimum coinbase reward for a block.
    79  	// The coinbase decreases in each block after the Genesis block,
    80  	// but it will not decrease past MinimumCoinbase.
    81  	MinimumCoinbase uint64
    82  
    83  	// Oak hardfork constants. Oak is the name of the difficulty algorithm for
    84  	// Sia following a hardfork at block 135e3.
    85  
    86  	// OakDecayDenom is the denominator for how much the total timestamp is decayed
    87  	// each step.
    88  	OakDecayDenom int64
    89  	// OakDecayNum is the numerator for how much the total timestamp is decayed each
    90  	// step.
    91  	OakDecayNum int64
    92  	// OakHardforkBlock is the height at which the hardfork to switch to the oak
    93  	// difficulty adjustment algorithm is triggered.
    94  	OakHardforkBlock BlockHeight
    95  	// OakHardforkFixBlock is the height at which the hardfork to switch from the broken
    96  	// oak difficulty adjustment algorithm to the fixed oak difficulty adjustment
    97  	// algorithm is triggered.
    98  	OakHardforkFixBlock BlockHeight
    99  	// OakHardforkTxnSizeLimit is the maximum size allowed for a transaction, a change
   100  	// which I believe was implemented simultaneously with the oak hardfork.
   101  	OakHardforkTxnSizeLimit = uint64(64e3) // 64 KB
   102  	// OakMaxBlockShift is the maximum number of seconds that the oak algorithm will shift
   103  	// the difficulty.
   104  	OakMaxBlockShift int64
   105  	// OakMaxDrop is the drop is the maximum amount that the difficulty will drop each block.
   106  	OakMaxDrop *big.Rat
   107  	// OakMaxRise is the maximum amount that the difficulty will rise each block.
   108  	OakMaxRise *big.Rat
   109  
   110  	// RootDepth is the cumulative target of all blocks. The root depth is essentially
   111  	// the maximum possible target, there have been no blocks yet, so there is no
   112  	// cumulated difficulty yet.
   113  	RootDepth = Target{255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255}
   114  	// RootTarget is the target for the genesis block - basically how much work needs
   115  	// to be done in order to mine the first block. The difficulty adjustment algorithm
   116  	// takes over from there.
   117  	RootTarget Target
   118  	// SiacoinPrecision is the number of base units in a siacoin. The Sia network has a very
   119  	// large number of base units. We call 10^24 of these a siacoin.
   120  	//
   121  	// The base unit for Bitcoin is called a satoshi. We call 10^8 satoshis a bitcoin,
   122  	// even though the code itself only ever works with satoshis.
   123  	SiacoinPrecision = NewCurrency(new(big.Int).Exp(big.NewInt(10), big.NewInt(24), nil))
   124  	// SiafundCount is the total number of Siafunds in existence.
   125  	SiafundCount = NewCurrency64(10000)
   126  	// SiafundPortion is the percentage of siacoins that is taxed from FileContracts.
   127  	SiafundPortion = big.NewRat(39, 1000)
   128  	// TargetWindow is the number of blocks to look backwards when determining how much
   129  	// time has passed vs. how many blocks have been created. It's only used in the old,
   130  	// broken difficulty adjustment algorithm.
   131  	TargetWindow BlockHeight
   132  )
   133  
   134  var (
   135  	// TaxHardforkHeight is the height at which the tax hardfork occurred.
   136  	TaxHardforkHeight = build.Select(build.Var{
   137  		Dev:      BlockHeight(10),
   138  		Standard: BlockHeight(21e3),
   139  		Testing:  BlockHeight(10),
   140  	}).(BlockHeight)
   141  )
   142  
   143  // init checks which build constant is in place and initializes the variables
   144  // accordingly.
   145  func init() {
   146  	if build.Release == "dev" {
   147  		// 'dev' settings are for small developer testnets, usually on the same
   148  		// computer. Settings are slow enough that a small team of developers
   149  		// can coordinate their actions over a the developer testnets, but fast
   150  		// enough that there isn't much time wasted on waiting for things to
   151  		// happen.
   152  		BlockFrequency = 12                      // 12 seconds: slow enough for developers to see ~each block, fast enough that blocks don't waste time.
   153  		MaturityDelay = 10                       // 60 seconds before a delayed output matures.
   154  		GenesisTimestamp = Timestamp(1424139000) // Change as necessary.
   155  		RootTarget = Target{0, 0, 2}             // Standard developer CPUs will be able to mine blocks with the race library activated.
   156  
   157  		TargetWindow = 20                              // Difficulty is adjusted based on prior 20 blocks.
   158  		MaxTargetAdjustmentUp = big.NewRat(120, 100)   // Difficulty adjusts quickly.
   159  		MaxTargetAdjustmentDown = big.NewRat(100, 120) // Difficulty adjusts quickly.
   160  		FutureThreshold = 2 * 60                       // 2 minutes.
   161  		ExtremeFutureThreshold = 4 * 60                // 4 minutes.
   162  
   163  		MinimumCoinbase = 30e3
   164  
   165  		OakHardforkBlock = 100
   166  		OakHardforkFixBlock = 105
   167  		OakDecayNum = 985
   168  		OakDecayDenom = 1000
   169  		OakMaxBlockShift = 3
   170  		OakMaxRise = big.NewRat(102, 100)
   171  		OakMaxDrop = big.NewRat(100, 102)
   172  
   173  		GenesisSiafundAllocation = []SiafundOutput{
   174  			{
   175  				Value:      NewCurrency64(2000),
   176  				UnlockHash: UnlockHash{214, 166, 197, 164, 29, 201, 53, 236, 106, 239, 10, 158, 127, 131, 20, 138, 63, 221, 230, 16, 98, 247, 32, 77, 210, 68, 116, 12, 241, 89, 27, 223},
   177  			},
   178  			{
   179  				Value:      NewCurrency64(7000),
   180  				UnlockHash: UnlockHash{209, 246, 228, 60, 248, 78, 242, 110, 9, 8, 227, 248, 225, 216, 163, 52, 142, 93, 47, 176, 103, 41, 137, 80, 212, 8, 132, 58, 241, 189, 2, 17},
   181  			},
   182  			{
   183  				Value:      NewCurrency64(1000),
   184  				UnlockHash: UnlockConditions{}.UnlockHash(),
   185  			},
   186  		}
   187  	} else if build.Release == "testing" {
   188  		// 'testing' settings are for automatic testing, and create much faster
   189  		// environments than a human can interact with.
   190  		BlockFrequency = 1 // As fast as possible
   191  		MaturityDelay = 3
   192  		GenesisTimestamp = CurrentTimestamp() - 1e6
   193  		RootTarget = Target{128} // Takes an expected 2 hashes; very fast for testing but still probes 'bad hash' code.
   194  
   195  		// A restrictive difficulty clamp prevents the difficulty from climbing
   196  		// during testing, as the resolution on the difficulty adjustment is
   197  		// only 1 second and testing mining should be happening substantially
   198  		// faster than that.
   199  		TargetWindow = 200
   200  		MaxTargetAdjustmentUp = big.NewRat(10001, 10000)
   201  		MaxTargetAdjustmentDown = big.NewRat(9999, 10000)
   202  		FutureThreshold = 3        // 3 seconds
   203  		ExtremeFutureThreshold = 6 // 6 seconds
   204  
   205  		MinimumCoinbase = 299990 // Minimum coinbase is hit after 10 blocks to make testing minimum-coinbase code easier.
   206  
   207  		// Do not let the difficulty change rapidly - blocks will be getting
   208  		// mined far faster than the difficulty can adjust to.
   209  		OakHardforkBlock = 20
   210  		OakHardforkFixBlock = 23
   211  		OakDecayNum = 9999
   212  		OakDecayDenom = 10e3
   213  		OakMaxBlockShift = 3
   214  		OakMaxRise = big.NewRat(10001, 10e3)
   215  		OakMaxDrop = big.NewRat(10e3, 10001)
   216  
   217  		GenesisSiafundAllocation = []SiafundOutput{
   218  			{
   219  				Value:      NewCurrency64(2000),
   220  				UnlockHash: UnlockHash{214, 166, 197, 164, 29, 201, 53, 236, 106, 239, 10, 158, 127, 131, 20, 138, 63, 221, 230, 16, 98, 247, 32, 77, 210, 68, 116, 12, 241, 89, 27, 223},
   221  			},
   222  			{
   223  				Value:      NewCurrency64(7000),
   224  				UnlockHash: UnlockHash{209, 246, 228, 60, 248, 78, 242, 110, 9, 8, 227, 248, 225, 216, 163, 52, 142, 93, 47, 176, 103, 41, 137, 80, 212, 8, 132, 58, 241, 189, 2, 17},
   225  			},
   226  			{
   227  				Value:      NewCurrency64(1000),
   228  				UnlockHash: UnlockConditions{}.UnlockHash(),
   229  			},
   230  		}
   231  	} else if build.Release == "standard" {
   232  		// 'standard' settings are for the full network. They are slow enough
   233  		// that the network is secure in a real-world byzantine environment.
   234  
   235  		// A block time of 1 block per 10 minutes is chosen to follow Bitcoin's
   236  		// example. The security lost by lowering the block time is not
   237  		// insignificant, and the convenience gained by lowering the blocktime
   238  		// even down to 90 seconds is not significant. I do feel that 10
   239  		// minutes could even be too short, but it has worked well for Bitcoin.
   240  		BlockFrequency = 600
   241  
   242  		// Payouts take 1 day to mature. This is to prevent a class of double
   243  		// spending attacks parties unintentionally spend coins that will stop
   244  		// existing after a blockchain reorganization. There are multiple
   245  		// classes of payouts in Sia that depend on a previous block - if that
   246  		// block changes, then the output changes and the previously existing
   247  		// output ceases to exist. This delay stops both unintentional double
   248  		// spending and stops a small set of long-range mining attacks.
   249  		MaturityDelay = 144
   250  
   251  		// The genesis timestamp is set to June 6th, because that is when the
   252  		// 100-block developer premine started. The trailing zeroes are a
   253  		// bonus, and make the timestamp easier to memorize.
   254  		GenesisTimestamp = Timestamp(1433600000) // June 6th, 2015 @ 2:13pm UTC.
   255  
   256  		// The RootTarget was set such that the developers could reasonable
   257  		// premine 100 blocks in a day. It was known to the developers at launch
   258  		// this this was at least one and perhaps two orders of magnitude too
   259  		// small.
   260  		RootTarget = Target{0, 0, 0, 0, 32}
   261  
   262  		// When the difficulty is adjusted, it is adjusted by looking at the
   263  		// timestamp of the 1000th previous block. This minimizes the abilities
   264  		// of miners to attack the network using rogue timestamps.
   265  		TargetWindow = 1e3
   266  
   267  		// The difficulty adjustment is clamped to 2.5x every 500 blocks. This
   268  		// corresponds to 6.25x every 2 weeks, which can be compared to
   269  		// Bitcoin's clamp of 4x every 2 weeks. The difficulty clamp is
   270  		// primarily to stop difficulty raising attacks. Sia's safety margin is
   271  		// similar to Bitcoin's despite the looser clamp because Sia's
   272  		// difficulty is adjusted four times as often. This does result in
   273  		// greater difficulty oscillation, a tradeoff that was chosen to be
   274  		// acceptable due to Sia's more vulnerable position as an altcoin.
   275  		MaxTargetAdjustmentUp = big.NewRat(25, 10)
   276  		MaxTargetAdjustmentDown = big.NewRat(10, 25)
   277  
   278  		// Blocks will not be accepted if their timestamp is more than 3 hours
   279  		// into the future, but will be accepted as soon as they are no longer
   280  		// 3 hours into the future. Blocks that are greater than 5 hours into
   281  		// the future are rejected outright, as it is assumed that by the time
   282  		// 2 hours have passed, those blocks will no longer be on the longest
   283  		// chain. Blocks cannot be kept forever because this opens a DoS
   284  		// vector.
   285  		FutureThreshold = 3 * 60 * 60        // 3 hours.
   286  		ExtremeFutureThreshold = 5 * 60 * 60 // 5 hours.
   287  
   288  		// The minimum coinbase is set to 30,000. Because the coinbase
   289  		// decreases by 1 every time, it means that Sia's coinbase will have an
   290  		// increasingly potent dropoff for about 5 years, until inflation more
   291  		// or less permanently settles around 2%.
   292  		MinimumCoinbase = 30e3
   293  
   294  		// The oak difficulty adjustment hardfork is set to trigger at block
   295  		// 135,000, which is just under 6 months after the hardfork was first
   296  		// released as beta software to the network. This hopefully gives
   297  		// everyone plenty of time to upgrade and adopt the hardfork, while also
   298  		// being earlier than the most optimistic shipping dates for the miners
   299  		// that would otherwise be very disruptive to the network.
   300  		//
   301  		// There was a bug in the original Oak hardfork that had to be quickly
   302  		// followed up with another fix. The height of that fix is the
   303  		// OakHardforkFixBlock.
   304  		OakHardforkBlock = 135e3
   305  		OakHardforkFixBlock = 139e3
   306  
   307  		// The decay is kept at 995/1000, or a decay of about 0.5% each block.
   308  		// This puts the halflife of a block's relevance at about 1 day. This
   309  		// allows the difficulty to adjust rapidly if the hashrate is adjusting
   310  		// rapidly, while still keeping a relatively strong insulation against
   311  		// random variance.
   312  		OakDecayNum = 995
   313  		OakDecayDenom = 1e3
   314  
   315  		// The block shift determines the most that the difficulty adjustment
   316  		// algorithm is allowed to shift the target block time. With a block
   317  		// frequency of 600 seconds, the min target block time is 200 seconds,
   318  		// and the max target block time is 1800 seconds.
   319  		OakMaxBlockShift = 3
   320  
   321  		// The max rise and max drop for the difficulty is kept at 0.4% per
   322  		// block, which means that in 1008 blocks the difficulty can move a
   323  		// maximum of about 55x. This is significant, and means that dramatic
   324  		// hashrate changes can be responded to quickly, while still forcing an
   325  		// attacker to do a significant amount of work in order to execute a
   326  		// difficulty raising attack, and minimizing the chance that an attacker
   327  		// can get lucky and fake a ton of work.
   328  		OakMaxRise = big.NewRat(1004, 1e3)
   329  		OakMaxDrop = big.NewRat(1e3, 1004)
   330  
   331  		GenesisSiafundAllocation = []SiafundOutput{
   332  			{
   333  				Value:      NewCurrency64(2),
   334  				UnlockHash: UnlockHash{4, 57, 229, 188, 127, 20, 204, 245, 211, 167, 232, 130, 208, 64, 146, 62, 69, 98, 81, 102, 221, 7, 123, 100, 70, 107, 199, 113, 121, 26, 198, 252},
   335  			},
   336  			{
   337  				Value:      NewCurrency64(6),
   338  				UnlockHash: UnlockHash{4, 158, 29, 42, 105, 119, 43, 5, 138, 72, 190, 190, 101, 114, 79, 243, 189, 248, 208, 151, 30, 187, 233, 148, 225, 233, 28, 159, 19, 232, 75, 244},
   339  			},
   340  			{
   341  				Value:      NewCurrency64(7),
   342  				UnlockHash: UnlockHash{8, 7, 66, 250, 25, 74, 247, 108, 162, 79, 220, 151, 202, 228, 241, 11, 130, 138, 13, 248, 193, 167, 136, 197, 65, 63, 234, 174, 205, 216, 71, 230},
   343  			},
   344  			{
   345  				Value:      NewCurrency64(8),
   346  				UnlockHash: UnlockHash{44, 106, 239, 51, 138, 102, 242, 19, 204, 197, 248, 178, 219, 122, 152, 251, 19, 20, 52, 32, 175, 32, 4, 156, 73, 33, 163, 165, 222, 184, 217, 218},
   347  			},
   348  			{
   349  				Value:      NewCurrency64(3),
   350  				UnlockHash: UnlockHash{44, 163, 31, 233, 74, 103, 55, 132, 230, 159, 97, 78, 149, 147, 65, 110, 164, 211, 105, 173, 158, 29, 202, 43, 85, 217, 85, 75, 83, 37, 205, 223},
   351  			},
   352  			{
   353  				Value:      NewCurrency64(1),
   354  				UnlockHash: UnlockHash{51, 151, 146, 84, 199, 7, 59, 89, 111, 172, 227, 200, 62, 55, 165, 253, 238, 186, 28, 145, 47, 137, 200, 15, 70, 199, 187, 125, 243, 104, 179, 240},
   355  			},
   356  			{
   357  				Value:      NewCurrency64(10),
   358  				UnlockHash: UnlockHash{53, 118, 253, 229, 254, 229, 28, 131, 233, 156, 108, 58, 197, 152, 17, 160, 74, 252, 11, 49, 112, 240, 66, 119, 40, 98, 114, 251, 5, 86, 233, 117},
   359  			},
   360  			{
   361  				Value:      NewCurrency64(50),
   362  				UnlockHash: UnlockHash{56, 219, 3, 50, 28, 3, 166, 95, 141, 163, 202, 35, 60, 199, 219, 10, 151, 176, 228, 97, 176, 133, 189, 33, 211, 202, 83, 197, 31, 208, 254, 193},
   363  			},
   364  			{
   365  				Value:      NewCurrency64(75),
   366  				UnlockHash: UnlockHash{68, 190, 140, 87, 96, 232, 150, 32, 161, 177, 204, 65, 228, 223, 87, 217, 134, 90, 25, 56, 51, 45, 72, 107, 129, 12, 29, 202, 6, 7, 50, 13},
   367  			},
   368  			{
   369  				Value:      NewCurrency64(10),
   370  				UnlockHash: UnlockHash{69, 14, 201, 200, 90, 73, 245, 45, 154, 94, 161, 19, 199, 241, 203, 56, 13, 63, 5, 220, 121, 245, 247, 52, 194, 181, 252, 76, 130, 6, 114, 36},
   371  			},
   372  			{
   373  				Value:      NewCurrency64(10),
   374  				UnlockHash: UnlockHash{72, 128, 253, 207, 169, 48, 1, 26, 237, 205, 169, 102, 196, 224, 42, 186, 95, 151, 59, 226, 203, 136, 251, 223, 165, 38, 88, 110, 47, 213, 121, 224},
   375  			},
   376  			{
   377  				Value:      NewCurrency64(50),
   378  				UnlockHash: UnlockHash{72, 130, 164, 227, 218, 28, 60, 15, 56, 151, 212, 242, 77, 131, 232, 131, 42, 57, 132, 173, 113, 118, 66, 183, 38, 79, 96, 178, 105, 108, 26, 247},
   379  			},
   380  			{
   381  				Value:      NewCurrency64(10),
   382  				UnlockHash: UnlockHash{74, 210, 58, 228, 111, 69, 253, 120, 53, 195, 110, 26, 115, 76, 211, 202, 199, 159, 204, 14, 78, 92, 14, 131, 250, 22, 141, 236, 154, 44, 39, 135},
   383  			},
   384  			{
   385  				Value:      NewCurrency64(15),
   386  				UnlockHash: UnlockHash{85, 198, 154, 41, 196, 116, 226, 114, 202, 94, 214, 147, 87, 84, 247, 164, 195, 79, 58, 123, 26, 33, 68, 65, 116, 79, 181, 241, 241, 208, 215, 184},
   387  			},
   388  			{
   389  				Value:      NewCurrency64(121),
   390  				UnlockHash: UnlockHash{87, 239, 83, 125, 152, 14, 19, 22, 203, 136, 46, 192, 203, 87, 224, 190, 77, 236, 125, 18, 142, 223, 146, 70, 16, 23, 252, 19, 100, 69, 91, 111},
   391  			},
   392  			{
   393  				Value:      NewCurrency64(222),
   394  				UnlockHash: UnlockHash{91, 201, 101, 11, 188, 40, 35, 111, 236, 133, 31, 124, 97, 246, 140, 136, 143, 245, 152, 174, 111, 245, 188, 124, 21, 125, 187, 192, 203, 92, 253, 57},
   395  			},
   396  			{
   397  				Value:      NewCurrency64(10),
   398  				UnlockHash: UnlockHash{110, 240, 238, 173, 78, 138, 185, 138, 179, 227, 135, 153, 54, 132, 46, 62, 226, 206, 204, 35, 174, 107, 156, 15, 142, 2, 93, 132, 163, 60, 50, 89},
   399  			},
   400  			{
   401  				Value:      NewCurrency64(3),
   402  				UnlockHash: UnlockHash{114, 58, 147, 44, 64, 69, 72, 184, 65, 178, 213, 94, 157, 44, 88, 106, 92, 31, 145, 193, 215, 200, 215, 233, 99, 116, 36, 197, 160, 70, 79, 153},
   403  			},
   404  			{
   405  				Value:      NewCurrency64(1),
   406  				UnlockHash: UnlockHash{123, 106, 229, 101, 220, 252, 50, 203, 38, 183, 133, 152, 250, 167, 210, 155, 252, 102, 150, 29, 187, 3, 178, 53, 11, 145, 143, 33, 166, 115, 250, 40},
   407  			},
   408  			{
   409  				Value:      NewCurrency64(5),
   410  				UnlockHash: UnlockHash{124, 101, 207, 175, 50, 119, 207, 26, 62, 15, 247, 141, 150, 174, 73, 247, 238, 28, 77, 255, 222, 104, 166, 244, 112, 86, 227, 80, 215, 45, 69, 143},
   411  			},
   412  			{
   413  				Value:      NewCurrency64(10),
   414  				UnlockHash: UnlockHash{130, 184, 72, 15, 227, 79, 217, 205, 120, 254, 67, 69, 10, 49, 76, 194, 222, 30, 242, 62, 88, 179, 51, 117, 27, 166, 140, 6, 7, 22, 222, 185},
   415  			},
   416  			{
   417  				Value:      NewCurrency64(25),
   418  				UnlockHash: UnlockHash{134, 137, 198, 172, 96, 54, 45, 10, 100, 128, 91, 225, 226, 134, 143, 108, 31, 70, 187, 228, 54, 212, 70, 229, 149, 57, 64, 166, 153, 123, 238, 180},
   419  			},
   420  			{
   421  				Value:      NewCurrency64(1),
   422  				UnlockHash: UnlockHash{143, 253, 118, 229, 109, 181, 141, 224, 91, 144, 123, 160, 203, 221, 119, 104, 172, 13, 105, 77, 171, 185, 122, 54, 229, 168, 6, 130, 160, 130, 182, 151},
   423  			},
   424  			{
   425  				Value:      NewCurrency64(8),
   426  				UnlockHash: UnlockHash{147, 108, 249, 16, 36, 249, 108, 184, 196, 212, 241, 120, 219, 63, 45, 184, 86, 53, 96, 207, 130, 96, 210, 251, 136, 9, 193, 160, 131, 198, 221, 185},
   427  			},
   428  			{
   429  				Value:      NewCurrency64(58),
   430  				UnlockHash: UnlockHash{155, 79, 89, 28, 69, 71, 239, 198, 246, 2, 198, 254, 92, 59, 192, 205, 229, 152, 36, 186, 110, 122, 233, 221, 76, 143, 3, 238, 89, 231, 192, 23},
   431  			},
   432  			{
   433  				Value:      NewCurrency64(2),
   434  				UnlockHash: UnlockHash{156, 32, 76, 105, 213, 46, 66, 50, 27, 85, 56, 9, 106, 193, 80, 145, 19, 101, 84, 177, 145, 4, 125, 28, 79, 252, 43, 83, 118, 110, 206, 247},
   435  			},
   436  			{
   437  				Value:      NewCurrency64(23),
   438  				UnlockHash: UnlockHash{157, 169, 134, 24, 254, 22, 58, 188, 119, 87, 201, 238, 55, 168, 194, 131, 88, 18, 39, 168, 37, 2, 198, 194, 93, 202, 116, 146, 189, 17, 108, 44},
   439  			},
   440  			{
   441  				Value:      NewCurrency64(10),
   442  				UnlockHash: UnlockHash{158, 51, 104, 36, 242, 114, 67, 16, 168, 230, 4, 111, 241, 72, 5, 14, 182, 102, 169, 156, 144, 220, 103, 117, 223, 8, 58, 187, 124, 102, 80, 44},
   443  			},
   444  			{
   445  				Value:      NewCurrency64(1),
   446  				UnlockHash: UnlockHash{160, 175, 59, 33, 223, 30, 82, 60, 34, 110, 28, 203, 249, 93, 3, 16, 218, 12, 250, 206, 138, 231, 85, 67, 69, 191, 68, 198, 160, 87, 154, 68},
   447  			},
   448  			{
   449  				Value:      NewCurrency64(75),
   450  				UnlockHash: UnlockHash{163, 94, 51, 220, 14, 144, 83, 112, 62, 10, 0, 173, 161, 234, 211, 176, 186, 84, 9, 189, 250, 111, 33, 231, 114, 87, 100, 75, 72, 217, 11, 26},
   451  			},
   452  			{
   453  				Value:      NewCurrency64(3),
   454  				UnlockHash: UnlockHash{170, 7, 138, 116, 205, 20, 132, 197, 166, 251, 75, 93, 69, 6, 109, 244, 212, 119, 173, 114, 34, 18, 25, 21, 111, 203, 203, 253, 138, 104, 27, 36},
   455  			},
   456  			{
   457  				Value:      NewCurrency64(90),
   458  				UnlockHash: UnlockHash{173, 120, 128, 104, 186, 86, 151, 140, 191, 23, 231, 193, 77, 245, 243, 104, 196, 55, 155, 243, 111, 15, 84, 139, 148, 187, 173, 47, 104, 69, 141, 39},
   459  			},
   460  			{
   461  				Value:      NewCurrency64(20),
   462  				UnlockHash: UnlockHash{179, 185, 228, 166, 139, 94, 13, 193, 255, 227, 174, 99, 120, 105, 109, 221, 247, 4, 155, 243, 229, 37, 26, 98, 222, 12, 91, 80, 223, 33, 61, 56},
   463  			},
   464  			{
   465  				Value:      NewCurrency64(5),
   466  				UnlockHash: UnlockHash{193, 49, 103, 20, 170, 135, 182, 85, 149, 18, 159, 194, 152, 120, 162, 208, 49, 158, 220, 188, 114, 79, 1, 131, 62, 27, 86, 57, 244, 46, 64, 66},
   467  			},
   468  			{
   469  				Value:      NewCurrency64(1),
   470  				UnlockHash: UnlockHash{196, 71, 45, 222, 0, 21, 12, 121, 197, 224, 101, 65, 40, 57, 19, 119, 112, 205, 166, 23, 2, 91, 75, 231, 69, 143, 221, 68, 245, 75, 7, 52},
   471  			},
   472  			{
   473  				Value:      NewCurrency64(44),
   474  				UnlockHash: UnlockHash{196, 214, 236, 211, 227, 216, 152, 127, 164, 2, 235, 14, 235, 46, 142, 231, 83, 38, 7, 131, 208, 29, 179, 189, 62, 88, 129, 180, 119, 158, 214, 97},
   475  			},
   476  			{
   477  				Value:      NewCurrency64(23),
   478  				UnlockHash: UnlockHash{206, 58, 114, 148, 131, 49, 87, 197, 86, 18, 216, 26, 62, 79, 152, 175, 33, 4, 132, 160, 108, 231, 53, 200, 48, 76, 125, 94, 156, 85, 32, 130},
   479  			},
   480  			{
   481  				Value:      NewCurrency64(80),
   482  				UnlockHash: UnlockHash{200, 103, 135, 126, 197, 2, 203, 63, 241, 6, 245, 195, 220, 102, 27, 74, 232, 249, 201, 86, 207, 34, 51, 26, 180, 151, 136, 108, 112, 56, 132, 72},
   483  			},
   484  			{
   485  				Value:      NewCurrency64(2),
   486  				UnlockHash: UnlockHash{200, 249, 245, 218, 58, 253, 76, 250, 88, 114, 70, 239, 14, 2, 250, 123, 10, 192, 198, 61, 187, 155, 247, 152, 165, 174, 198, 24, 142, 39, 177, 119},
   487  			},
   488  			{
   489  				Value:      NewCurrency64(1),
   490  				UnlockHash: UnlockHash{209, 1, 199, 184, 186, 57, 21, 137, 33, 252, 219, 184, 130, 38, 32, 98, 63, 252, 250, 79, 70, 146, 169, 78, 180, 161, 29, 93, 38, 45, 175, 176},
   491  			},
   492  			{
   493  				Value:      NewCurrency64(2),
   494  				UnlockHash: UnlockHash{212, 107, 233, 43, 185, 138, 79, 253, 12, 237, 214, 17, 219, 198, 151, 92, 81, 129, 17, 120, 139, 58, 66, 119, 126, 220, 132, 136, 3, 108, 57, 58},
   495  			},
   496  			{
   497  				Value:      NewCurrency64(3),
   498  				UnlockHash: UnlockHash{214, 244, 146, 173, 173, 80, 33, 185, 29, 133, 77, 167, 185, 1, 38, 23, 111, 179, 104, 150, 105, 162, 120, 26, 245, 63, 114, 119, 52, 1, 44, 222},
   499  			},
   500  			{
   501  				Value:      NewCurrency64(1),
   502  				UnlockHash: UnlockHash{217, 218, 172, 16, 53, 134, 160, 226, 44, 138, 93, 53, 181, 62, 4, 209, 190, 27, 0, 93, 105, 17, 169, 61, 98, 145, 131, 112, 121, 55, 97, 184},
   503  			},
   504  			{
   505  				Value:      NewCurrency64(1),
   506  				UnlockHash: UnlockHash{223, 162, 172, 55, 54, 193, 37, 142, 200, 213, 230, 48, 186, 145, 184, 206, 15, 225, 167, 19, 37, 70, 38, 48, 135, 87, 205, 81, 187, 237, 181, 180},
   507  			},
   508  			{
   509  				Value:      NewCurrency64(1),
   510  				UnlockHash: UnlockHash{241, 46, 139, 41, 40, 63, 47, 169, 131, 173, 124, 246, 228, 213, 102, 44, 100, 217, 62, 237, 133, 154, 248, 69, 228, 2, 36, 206, 47, 250, 249, 170},
   511  			},
   512  			{
   513  				Value:      NewCurrency64(50),
   514  				UnlockHash: UnlockHash{241, 50, 229, 211, 66, 32, 115, 241, 117, 87, 180, 239, 76, 246, 14, 129, 105, 181, 153, 105, 105, 203, 229, 237, 23, 130, 193, 170, 100, 201, 38, 71},
   515  			},
   516  			{
   517  				Value:      NewCurrency64(8841),
   518  				UnlockHash: UnlockHash{125, 12, 68, 247, 102, 78, 45, 52, 229, 62, 253, 224, 102, 26, 111, 98, 142, 201, 38, 71, 133, 174, 142, 60, 215, 201, 115, 232, 209, 144, 195, 201},
   519  			},
   520  		}
   521  	}
   522  
   523  	// Create the genesis block.
   524  	GenesisBlock = Block{
   525  		Timestamp: GenesisTimestamp,
   526  		Transactions: []Transaction{
   527  			{SiafundOutputs: GenesisSiafundAllocation},
   528  		},
   529  	}
   530  	// Calculate the genesis ID.
   531  	GenesisID = GenesisBlock.ID()
   532  }