How can I verify my own devices?

On mobile devices:

In the conversation list:

1. Tap your Profile in the upper left hand corner.
2. Tap Settings .
3. Tap Devices.
4. A list of your active devices is displayed.
5. Tap the device name and ID that you'd like to compare.
6. Compare the key fingerprints of your devices to ensure that they are identical.
7. Tap VERIFIED.