> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://support.mixin.one/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Does a change in address case (uppercase/lowercase) affect asset transfers?

For ETH addresses: sometimes, the copied ETH address is upper- and lowercase mixed because Mixin Messenger follows the Ethereum [documentation](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-55.md) to support ERC-20 tokens. The copied addresses will then be standardized. Therefore, some parts of the addresses change to lowercase or uppercase. According to this documentation, the Ethereum addresses are case-insensitive. This means that you can ignore them.

#  Related sources
* [How to withdraw from Mixin Messenger?](/en/article/how-to-withdraw-from-mixin-messenger-gr2bzc/)