Param Change

fury tx gov submit-proposal param-change

Submit a parameter change proposal


Submit a parameter proposal along with an initial deposit. The proposal details must be supplied via a JSON file. For values that contains objects, only non-empty fields will be updated.

IMPORTANT: Currently parameter changes are evaluated but not validated, so it is very important that any “value” change is valid (ie. correct type and within bounds) for its respective parameter, eg. “MaxValidators” should be an integer and not a decimal.

Proper vetting of a parameter change proposal should prevent this from happening (no deposits should occur during the governance process), but it should be noted regardless.


$ fury tx gov submit-proposal param-change <path/to/proposal.json> --from=<key_or_address>

Where proposal.json contains:

  "title": "Staking Param Change",
  "description": "Update max validators",
  "changes": [
      "subspace": "staking",
      "key": "MaxValidators",
      "value": 105
  "deposit": [
      "denom": "stake",
      "amount": "10000"
fury tx gov submit-proposal param-change [proposal-file] [flags]


  -a, --account-number uint      The account number of the signing account (offline mode only)
  -b, --broadcast-mode string    Transaction broadcasting mode (sync|async|block) (default "sync")
      --dry-run                  ignore the --gas flag and perform a simulation of a transaction, but don't broadcast it
      --fees string              Fees to pay along with transaction; eg: 10uatom
      --from string              Name or address of private key with which to sign
      --gas string               gas limit to set per-transaction; set to "auto" to calculate required gas automatically (default 200000) (default "200000")
      --gas-adjustment float     adjustment factor to be multiplied against the estimate returned by the tx simulation; if the gas limit is set manually this flag is ignored  (default 1)
      --gas-prices string        Gas prices to determine the transaction fee (e.g. 10uatom)
      --generate-only            Build an unsigned transaction and write it to STDOUT (when enabled, the local Keybase is not accessible and the node operates offline)
  -h, --help                     help for param-change
      --indent                   Add indent to JSON response
      --keyring-backend string   Select keyring's backend (os|file|test) (default "os")
      --ledger                   Use a connected Ledger device
      --memo string              Memo to send along with transaction
      --node string              <host>:<port> to tendermint rpc interface for this chain (default "tcp://localhost:26657")
  -s, --sequence uint            The sequence number of the signing account (offline mode only)
      --trust-node               Trust connected full node (don't verify proofs for responses) (default true)
  -y, --yes                      Skip tx broadcasting prompt confirmation

Options inherited from parent commands

      --chain-id string   Chain ID of tendermint node