Check if OP placed sign? (Adding unique property to placed sign block)

Hi!

I want to add some sort of property to a block that is activated when an OP places down a sign with a certain string in the first sign line.

I have no problem with the first sign line part, but I'm unsure to which property I should add. I did make the text bold through ChatColor, but there seems to be no quick way to check this.

Sure, it could probably work with something like

if(!(ChatColor.stripColor(sign.getLine(0).equals(sign.getLine(0))))), (I didn't try it as I came up with this now), but is there a more efficent way? I do not want hacker to be able to create signs with this property, because the signs should only ever exist in certain locations.


Thanks in advance!

 

I would go with the easy way, if a non op tries to make a bold sign you cancel the placement.
In the harder way, you could store the signs in a file or something.