Each token basically has a serial number linked to a random number generator common to the token and the service. You tell the service your s/n, and it uses that to validate your code.
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Each token basically has a serial number linked to a random number generator common to the token and the service. You tell the service your s/n, and it uses that to validate your code.