# Params

Params module allows you to query the system parameters which can be governed (except the gov params) by the gov module.

iris query params subspace [subspace] [key] [flags]

Subspace currently supports the following:auth, bank, staking, mint, distribution, slashing, gov, crisis, token, record, htlc, coinswap, service.

Among them, the parameters available for query for each subspace are as follows:

# auth

key description default
MaxMemoCharacters Maximum number of characters in the memo field in a transaction 256
TxSigLimit Maximum number of signatures per transaction 7
TxSizeCostPerByte The amount of gas consumed per byte of the transaction 10
SigVerifyCostED25519 Gas spent on edd2519 algorithm signature verification 590
SigVerifyCostSecp256k1 Gas spent on secp256k1 algorithm signature verification 1000

# bank

key description default
SendEnabled Tokens that support transfer {}
DefaultSendEnabled Whether to enable the transfer function by default true

# staking

key description default
UnbondingTime Mortgage redemption time 3w(weeks)
MaxValidators Maximum number of validators 100
MaxEntries The maximum number of unbinding/redelegation orders in progress 7
BondDenom Bond denom uiris
HistoricalEntries The number of historical entries 100

# mint

key description default
Inflation Token issuance frequency 0.04
MintDenom Denom of the token mintable uiris

# distribution

key description default
communitytax Fees charged for withdrawal 0.02
baseproposerreward The base reward rate of the block proposer 0.01
bonusproposerreward Reward rate for block proposers 0.04
withdrawaddrenabled Whether to support setting the withdrawal address true

# slashing

key description default
SignedBlocksWindow Sliding window for downtime slashing 100
MinSignedPerWindow Minimum signature rate in each window 0.5
DowntimeJailDuration Maximum downtime (continuous) 10m
SlashFractionDoubleSign Penalty coefficient for double sign 1/20
SlashFractionDowntime Penalty coefficient for downtime 1/100

# gov

key description default
depositparams Related parameters of the deposit mortgage phase min_deposit: 10000000uiris; max_deposit_period: 2d(days)
votingparams Related parameters of the voting mortgage phase voting_period: 2d(days)
tallyparams Related parameters of the voting tally phase quorum: 0.334; threshold: 0.5; veto_threshold: 0.334

# crisis

key description default
ConstantFee Constant Fee 1000uiris

# token

key description default
TokenTaxRate Base rate for issuing/mint tokens 0.4
IssueTokenBaseFee Base token for issuing tokens 60000 * 10^6 uiris
MintTokenFeeRatio Rate for mint tokens 0.1

# coinswap

key description default
StandardDenom The name of the token charged uiris

# htlc

key description default
AssetParams Array of supported assets,[]AssetParam None


key description Example
AssetParam.Denom The name of asset "htltbcbnb"
AssetParam.SupplyLimit The supply limit of asset 100000
AssetParam.Active Asset state: live or paused true
AssetParam.DeputyAddress Deputy's IRISHub address “iaa18n3x722r4jpwmshlxnw3ehlpfzywupzefthcz5”
AssetParam.FixedFee Deputy's fixed fee on other chain 1000
AssetParam.MinSwapAmount Minimum swap amount 1
AssetParam.MaxSwapAmount Maximum swap amount 10000
AssetParam.MinBlockLock Minimum swap expire height 50
AssetParam.MaxBlockLock Maximum swap expire height 25480

# service

key description default
MaxRequestTimeout Maximum service request timeout 100(block)
MinDepositMultiple Minimum deposit multiple 200
MinDeposit Minimum deposit amount 6000uiris
ServiceFeeTax Service rate 0.1
SlashFraction Slash fraction 0.001
ComplaintRetrospect Complaint retrospect 15d
ArbitrationTimeLimit Arbitration period 5d
TxSizeLimit The maximum number of bytes per service transaction 4000
BaseDenom Tokens supported by service fees uiris
RestrictedServiceFeeDenom Restricted service fee denom false