Lifespan CDD Bycohort 0 CDD Bycohort 0
Bitcoin
This is the 30-day rolling sum of Coin Days Destroyed.
Why it matters
It smooths CDD to reveal sustained trends in old-coin spending.
How it is built
Coin days destroyed are summed over a trailing 30-day window.
What to watch
A rising 30-day sum flags a sustained wave of old-coin distribution.