Mining Difficultyadjustment Difficultyadjustment
Bitcoin
This tracks Bitcoin's periodic mining-difficulty adjustments (every ~2016 blocks).
Why it matters
It shows how the protocol responds to changes in hash power to keep block times steady.
How it is built
The percentage change at each difficulty retarget is recorded.
What to watch
Large negative adjustments signal miners leaving (capitulation); positive ones signal expanding hash power.