Delete cache with GUID as Id?

Hello,

I have a question how to delete the cache in the following situation.
A user add’s a widget and in the widget the give a unique key (GUID).

This key I use to store the cache:
wp_cache_set( $guid, $cache, ‘bvdn_looptijden_cached_widget’, 43200 );

And also when using a shortcode I store the guid in the cache:
[looptijden code=”F68FB11E-9A2C-4704-8F0A-88DE8E0A4525″]

wp_cache_set( $guid, $cache, ‘bvdn_looptijden_cached_shortcut’, 43200 );

So how do I receive these quid values to delete the cache on “uninstalling” the plugin?

wp_cache_delete ( $guid, ‘bvdn_looptijden_cached_widget’ );
wp_cache_delete ( $guid, ‘bvdn_looptijden_cached_shortcut’ );

Thanks for the help!
Bjorn