> ## Documentation Index
> Fetch the complete documentation index at: https://docs.therootnetwork.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Assets (ERC-20)

## Asset Precompile

### Contract Address

The ERC-20 contract address for The Root Network native tokens uses the following format:

```
0xCCCCCCCC[4-byte-token-id]000000000000000000000000
```

To make things easier, the `@therootnetwork/evm` provides a handy function to convert token asset ID to its equivalent contract address.

```
import { assetIdToERC20Address } from "@therootnetwork/evm";

const ROOT_ASSET_ID = 1;
const ROOT_CONTRACT_ADDRESS = assetIdToERC20Address(ROOT_ASSET_ID);
```

### Solidity Interfaces

```
interface IERC165 {
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
```

```
interface IERC20 is IERC165 {
  event Transfer(address indexed from, address indexed to, uint256 value);
  event Approval(address indexed owner, address indexed spender, uint256 value);

  function totalSupply() external view returns (uint256);
  function balanceOf(address account) external view returns (uint256);
  function transfer(address to, uint256 amount) external returns (bool);
  function allowance(address owner, address spender) external view returns (uint256);
  function approve(address spender, uint256 amount) external returns (bool);
  function transferFrom(address from, address to, uint256 amount) external returns (bool);
}
```

```
interface IERC20Metadata is IERC20 {
  function name() external view returns (string memory);
  function symbol() external view returns (string memory);
  function decimals() external view returns (uint8);
}
```