Mining
Difficulty adjustments and mining pool distribution
Monitor Bitcoin's mining landscape. The difficulty chart tracks the network's computational security as it adjusts every 2,016 blocks. Pool distribution shows which mining pools are producing blocks, with OCEAN template miners identified individually. Empty blocks are tracked historically: 78,800 of the 89,929 coinbase-only blocks in the chain are from 2009 and 2010, and they are rare today. This data shows that a block carried no user transactions, not why.
Difficulty
Difficulty
Daily mining difficulty, adjusts every 2,016 blocks (~2 weeks)
Hash Rate
Estimated daily hash rate, derived from difficulty
Difficulty Adjustment
How much difficulty moved at each retarget, every 2,016 blocks
Difficulty Ribbon
Seven moving averages of difficulty, from 7 to 128 days. There is no unsmoothed line: every series here is derived
Mining Pools
Mining Pool Share
Share of blocks in the range by identified pool, with unattributed blocks kept separate
Mining Diversity Index
Herfindahl-Hirschman Index (HHI) measuring mining concentration. Below 1000 is competitive, above 1800 is concentrated
Empty Blocks
Blocks carrying only the coinbase transaction, which is almost always the early chain: 78,800 of them are from 2009 and 2010
Empty Blocks by Pool
Coinbase-only blocks in the range, grouped by the pool that mined them