--- title: State sidebar_label: State sidebar_position: 2 slug: /apps/transfer/state --- # State The IBC transfer application module keeps state of the port to which the module is binded and the denomination trace information as outlined in [ADR 001](/architecture/adr-001-coin-source-tracing). - `Port`: `0x01 -> ProtocolBuffer(string)` - `DenomTrace`: `0x02 | []bytes(traceHash) -> ProtocolBuffer(DenomTrace)`