The bank module is responsible for token transfer functionalities. bank is active on Cosmos Hub 3 and currently has one parameter that may be modified by governance proposal:
sendenabled- true
The value of the launch parameter is outlined here, but you can verify it yourself.
If you're technically-inclined, this is the technical specification. If you're looking to create a proposal to change one or more of these parameters, check out this section for formatting.
The Cosmos Hub (cosmoshub-1) launched without transfer functionality enabled. Users were able to stake and earn rewards, but were unable to transfer ATOMs between accounts until the cosmoshub-2 chain launched. Transfer functionality may be disabled and enabled via governance proposal.
Setting the sendenabled parameter to true will enable ATOMs to be transferred between accounts. This capability was first enabled when the cosmoshub-2 chain launched.
Setting the sendenabled parameter to false will prevent ATOMs from being transferred between accounts. ATOMs may still be staked and earn rewards. This is how the cosmoshub-1 chain launched.
The cosmoshub-1 chain launched with sendenabled set to false and with withdrawaddrenabled set to false. Staking was enabled on cosmoshub-1, so setting withdrawaddrenabled to false was necessary to prevent a loophole that would enable ATOM transfer via diverting staking rewards to a designated address.
This is useful if you don't have gaiacli installed and don't have a reason to believe that the parameter has changed since the chain launched.
Each parameter may be verified in the chain's genesis file, found here. These are the parameters that the latest Cosmos Hub chain launched with, and will remain so, unless a governance proposal changes them. I've outlined those original values in the Technical Specifications section.
The genesis file is text-based and large. The genesis parameter naming scheme isn't identical to those listed above, so when I search, I put one underscore between upper and lowercase characters, then convert all characters to lowercase.
For example, if I want to search for sendenabled, I'll search the genesis file for send_enabled.
You may verify the current parameter values (in case they were modified via governance proposal post-launch) with the gaiacli command-line application. Here are the commands for each:
sendenabled-gaiacli q ..--> to do <--
The bank module is responsible for handling multi-asset coin transfers between accounts and tracking special-case pseudo-transfers, which must work differently with particular kinds of accounts (notably delegating/undelegating for vesting accounts). It exposes several interfaces with varying capabilities for secure interaction with other modules, which must alter user balances.
The bank module contains the following parameter:
| Key | Type | cosmoshub-3 genesis setting |
|---|---|---|
| sendenabled | bool | true |