"unknown" pools, 50% attack?

[shmadz]

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.

on http://bitcoincharts.com/ 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?

[RyNinDaCleM]

It's a combination of all solo miners and small, not well known pools.

Edit: This should be in the general mining subforum though.

[Realpra]

He is right it's a bit much, who mines solo these days and how many small pools were created/gained traction in such a short time?

Abandon ship people - abandon ship!


Nah even if its an 51% attack it shouldn't hurt us too much.

[phorensic]

Not to be *that guy*, but please search on this topic.  It comes up once a week and there is a really good reason why you see it and it is nothing to worry about.

[mav]

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.

on http://bitcoincharts.com/ 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?

The latest other thread on this topic of the many - this has been asked many times in the mining forum.

https://bitcointalk.org/index.php?topic=86223.0

In summary

Bitcoincharts.com is not very accurate. Some of the unknown blocks are from known pools but called unknown.

[finway]

Check this out, more accurate stats:
http://blockorigin.pfoe.be/chart.php

[shmadz]

Check this out, more accurate stats:
http://blockorigin.pfoe.be/chart.php

Ahh, thank you finway, that looks like a much better chart!

... and sorry everyone else