With the fourth adjustment for 2015 occurring today, the Bitcoin mining difficulty has grown to a new ATH of 46,684,376,317. This is an increase of 5.01% over February 9th's previous ATH of 44,455,415,962. The global hash rate as of the change stands at 334,179,783 GH/s.1

The block height stands at 344737 with a remaining 75263 blocks to be mined prior to the reward halving. The next reward halving event is forecast to occur in July or August of 2016.