> ## Documentation Index
> Fetch the complete documentation index at: https://cosmos-docs-sync-security-docs.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# State

> The IBC transfer application module keeps state of the port to which the module is binded and the denomination trace information.

The IBC transfer application module keeps state of the port to which the module is binded and the denomination trace information.

* `PortKey`: `0x01 -> ProtocolBuffer(string)`
* `DenomTraceKey`: `0x02 | []bytes(traceHash) -> ProtocolBuffer(Denom)`
* `DenomKey` : `0x03 | []bytes(traceHash) -> ProtocolBuffer(Denom)`