Parameters for Bitcoin mainnet from chaincfg/params.go

Chain parameters
Parameter Value Description
GenesisBlock 000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f First block of the chain
PremineBlock 1 Premine Block of the chain
PowLimit 26959946667150639794667015087019630673637144422540572481103610249215 highest allowed proof of work value for a block
PowLimitBits 486604799 bits Highest allowed proof of work value for a block in compact form
ReduceMinDifficulty false Whether the network should reduce the minimum required difficulty after a long enough period of time has passed without finding a block
MinDiffReductionTime 0s Amount of time after which the minimum required difficulty should be reduced when a block hasn't been found
GenerateSupported false Whether or not CPU mining is allowed
TargetTimespan 14d 0h 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
TargetTimePerBlock 10m 0s The desired amount of time to generate each block
RetargetAdjustmentFactor 4 Adjustment factor used to limit the minimum and maximum amount of adjustment that can occur between difficulty retargets
CoinbaseMaturity 100 Number of blocks required before newly mined
SubsidyReductionInterval 210000 blocks Reduction interval in blocks
RuleChangeActivationThreshold 1916 blocks Number of blocks in a threshold state retarget window for which a positive vote for a rule change
MinerConfirmationWindow 2016 blocks Number of blocks in each threshold state retarget window
Address parameters
Address Prefix Description
NetworkAddressPrefix bc First letters of the network for any given address encoded as a string
PubKeyHashAddrID 1 P2PKH Public Key Hash Address
ScriptHashAddrID 3 P2SH Script Hash Address
PrivateKeyID 5 WIF Private Key
WitnessPubKeyHashAddrID p2 P2WPKH Witness Public Key Hash Address
WitnessScriptHashAddrID 7Xh P2WSH Witness Script Hash Address
HDPrivateKeyID xprv BIP32 hierarchical deterministic extended key magics. Private Key
HDPublicKeyID xpub BIP32 hierarchical deterministic extended key magics. Public Key