hi
there were hardware issues that required emergency changes in the content release pipelines, one artifact of that is the sign push for sig content is down till that is changed to match some of the new paths.
I'll aim at getting that fixed in the next day or so - in the mean time, if someone has time based release work going through let me know ( ideally on irc in #centos-devel ) and we can do something manual if needed.
regards,