Please don't check these with alt checkers they tend to get blocked by mojang if you do.
It goes username:password
If you wait a while they may stop working from people alt checking them with many proxies at the same time.
As of right now all account where checked and are working.
Sorry, but you need at least 25 posts and 5 hours online time to unlock hidden content.
Sorry I dont know if the accounts still work....