If you think the U.S. Supreme Court posts official versions of their opinions on their website … hahaha … I have a virtual bridge and an inside WH or Congressional source to sell you for $1B dollars. (Tip: Beware of any source who charges too much or too little and read those disclaimers, e.g. click on “Latest Slip Opinions.“)
If you think that is the only problem with online Supreme Court opinions, guess again: what about their link rot? See e.g.:
NYT article, “In Supreme Court Opinions, Web Links to Nowhere,” by Adam Liptak, Sept. 23, 2013.