Bitcoin difficulty adjustment at block 391,104

December 31, 2015. Difficulty rose by +11.16% to 103.88B from 93.45B.


Change	+11.16%
New difficulty	103.88B
Period length	12.6 days
Network hashrate then (7-day)	0.8 EH/s
Bitcoin price then	$428
Hashprice then	$2,084/PH/day

The 2,016 blocks before it took 12.6 days instead of 14, so the network had more hashrate than the difficulty assumed, and difficulty rose by 11.16%: one of the largest adjustments on record. For every machine on the network that is a pay cut of the same size until the next retarget.

Previous: December 18, 2015, +18.14% · Next: January 13, 2016, +9.12%

Every adjustment, charted · The next one · Difficulty in 2015