Keystone is an offline device which only records transaction signatures. Even if a transaction isn’t broadcasted, the Keystone will record its signing history. You can tap [Cryptocurrency], then [SIGNATURES] to view detailed signing information.
The keystone mobile app records all details of broadcasted transactions. You can tap [Cryptocurrency] and select transactions to view their detailed information. You can also tap [View more...] at the bottom to view more details on a blockchain explorer.