# Roles Contract * **Smart Contract:** SRC20 specific * **Created:** Step 3 in SRC20 deployment (see [Swarm Tokenization App](https://swarm.app/)) * **Purpose:** Manages the addresses that can perform restricted actions for an SRC20 as defined by the contract owner. SRC20 tokens can have four types of roles: Owner, Authority, Manager and Delegate * **Example:** [NUVO on Ropsten](https://ropsten.etherscan.io/address/0x32da71b47888a8c900761dff4fecd37c2e2da654#code) ## Feature Description **Glossary** | Item | Description | | --------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Owner | Owner is the owner of the `Roles` smart contract | | Delegate | Address responsible for updating the KYA document, Net Asset Value, transfer restrictions and rules and perform bulk transfers that bypass whitelist and greylist. There can be multiple authorities granted | | Authority | Address authorized to maintain the white and greylists (add/remove) for a specific SRC20 token, as well as authorize transfers subject to a greylist | | Manager | There is one manager, which is a smart contract responsible for minting or burning tokens. It is initially set to be the `SRC20 Registry` contract where you can increase or decrease the supply of the corresponting SRC20 | **Read Functions** | Function | Description | | --------------- | ------------------------------------------------------------------------------------------------------------------------------------------------ | | `isDelegate()` | Returns *true*/*false* whether an address is a Delegate for this contract | | `isAuthority()` | Returns *true*/*false* whether an address is an Authority for this contract | | `manager()` | Returns the address of the Manager contract. This is normally the address of the `SRC20Registry` contract, where staking and minting is executed | | `owner()` | Returns the address of the contract owner | | `isOwner()` | Returns *true* if the caller is the current owner | | `isManager()` | Returns *true* if the caller is the current Manager | **Write Functions** | Function | Description | | ---------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | `renounceManagement()` | Relinquish the ability to manage this contract. *Attention:* *If a manager renounces management there is no possible way to mint or burn SRC20 tokens anymore* | | `addAuthority()` | Adds an address authorized to maintain the white and greylists (add/remove) for a specific SRC20 token, as well as authorize transfers subject to a greylist. Can only be called by the owner | | `removeDelegate()` | Remove an address from being able to perform delegate functions. Can only be called by the owner | | `renounceOwnership()` | Can only be called by the owner and it sets the owner address to `0x0` | | `removeAuthority()` | Removes an address authorized to maintain the white and greylists (add/remove) for a specific SRC20 token, as well as authorize transfers subject to a greylist. Can only be called by the owner | | `transferManagement()` | A manager can transfer their role to a new address | | `addDelegate()` | Add an address that is able to perform delegate only functions. Can only be called by the owner | | `transferOwnership()` | An owner can transfer their role to a new address or to a multisig wallet or to a multisig wallet | --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.swarmnetwork.org/swarm-protocol/src20/roles-contract.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.