Yes but there are more then 300-400 new accounts that all started solo mining in the last few days. The age of these new accounts is between some days and a few hours.
New accounts from 26th nov - 2nd dec: 801
New accounts from 19th nov - 25th nov: 262
This are more then 500 new accounts as usual in the same time frame. Most of these accounts started solo mining and this explain the diff increase of 4pb.
just awesome, thank you for this research! I care much much less now for network diff increase, this is great for BURST market
so these accounts turned on over the long weekend , in a short time delta.. then turned off.. these drives can not be reused for something else.. interesting.. veeery interesting
+1
That's almost conclusive evidence: Someone or a group have access to a huge amount of VPS's (or a few huge servers) and plotting 30-50TBs for each new account and lets them solo-mine.
Awesome research!
They most either have substantial costs for this (speculating) or they somehow have free or almost free access to unused space somewhere. As said, it's interesting that they aren't selling...
Can you do a rough estimate on how many coins they can have accumulated so far?
Here is my calculation:
Total blocks in the last 24 hours: 350
Blocks found by these new solo miners in the last 24 hours: 123 (35,14%)
Total blocks in the last 48 hours: 708
Blocks found by these new solo miners in the last 48 hours: 259 (36,58%)
Total blocks in the last 72 hours: 1069
Blocks found by these new solo miners in the last 72 hours: 354 (33,16%)
These numbers are equal with the diff increase in the last few days (approx. 35% - 40%).