I+mst2euvwzrp0472t+fixed //top\\ Page

: This could simply be a string used for testing purposes or a random output from a program.

Or if you need to extract the core ID:

The string appears to be a highly specific technical identifier, likely related to an internal software patch, a bug tracking ID, or a localized system update code. i+mst2euvwzrp0472t+fixed