disclaimer - I'm always hesitant to start a new thread, but I can't seem to search this forum efficiently, so if this is common knowledge then sorry or whatever.
right now, the hashrate distribution is showing "unknown" as now having greater than 50% of the total hashrate.
I have never before seen any one group reach 50+ percent, and although I don't understand how to execute a double-spend attack, I have heard that it requires controlling more than 50 percent of the network hashrate.
what does "unknown" mean? I understand that it's unlikely that all of that "unknown" is a single entity, but it is not impossible.
anyone want to clear all this up and allow me to sleep soundly? or should I just sell all my bitcoins right now?