There may be some interesting options in VSX that you may not be aware of.
One of them is the possibility to see the entry of a variable star as it was before the latest revision was made.
Click on the Revision history number (the Revision history field is at the bottom of a star page) and you will see the star page with the information that it displayed at the time that revision was published. That way you can see what has been changed over the years. Keeping a record of all changes available also helps to detect any mistake that may have been made.
We will be sharing information on more VSX features that you may not know in the future.