Protect heartbeat logs using PrivCount
Sometimes, we ask relay operators to share their heartbeat logs on mailing lists or the bug tracker. Other relay operators keep graphs of their heartbeat logs (or other tor statistics).
Once we have implemented PrivCount, we can add noise to these stats, round them, and then log them: https://lists.torproject.org/pipermail/tor-dev/2019-February/013659.html
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