# General Concepts ## Denom and Metadata Assets in the Cosmos SDK are represented via a Coins type that consists of an amount and a denom, where the amount can be any arbitrarily large or small value, module bank keeps track of metadata per denom in order to help clients, wallet providers, and explorers improve their UX and remove the requirement for making any assumptions on the unit of denomination. To avoid upgrading the chain when adding a new rToken, module sudo provider an interface to add a new denom and its metadata, this action can only be operated by the admin account which is initialized in the genesis file. --- # 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.stafihub.io/welcome-to-stafihub/chain/concepts/general-concepts.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.