Bank - c8ntinuum Docs

Overview

The Bank precompile exposes native Cosmos SDK token supply and balance views. ERC-20-style transfers happen through registered ERC20 extension/token-pair addresses, not through the static Bank precompile. Precompile Address: 0x0000000000000000000000000000000000000804

Gas Costs

Method Type	Gas Cost
Transactions	`2000 + (30 x bytes of input)`
Queries	`1000 + (3 x bytes of input)`

Transfer behavior

The static Bank precompile documented in the ABI reference exposes balance and supply views. ERC-20-style transfers happen through registered ERC20 extension/token-pair addresses, not through this static Bank address.

Query Methods

Method	Signature	Returns
`balances`	`balances(address account)`	`(tuple[](address contractAddress,uint256 amount) balances)`
`supplyOf`	`supplyOf(address erc20Address)`	`(uint256 totalSupply)`
`totalSupply`	`totalSupply()`	`(tuple[](address contractAddress,uint256 amount) totalSupply)`

Example

// Pseudocode: import the canonical IBank interface for the target release.
IBank constant bank = IBank(0x0000000000000000000000000000000000000804);

// Query native token-pair balances exposed through the bank precompile.
bank.balances(msg.sender);

Cosmos module precompiles use the chain’s native decimal precision. c8ntinuum’s base denom is ctm with exponent 18; check each precompile’s expected amount format before interacting with it.

For the ABI catalog, see Precompile ABI Reference.