Coin-Days Destroyed (CDD) measures old money moving. Every coin accrues “coin-days” while it sits still; when it moves, those accumulated days are destroyed. A spike means long-dormant supply suddenly transacted — often a distribution or whale-activity signal — while a flat low line means only freshly-moved coins are changing hands. Drawn as one continuous timeline from the original Proof-of-Work chain into QRL 2.0.
Coin-Days Destroyed
Time range
Coin-days destroyed / day
FAQ about this chart
Common questions about this page+
What does Coin-Days Destroyed measure?
It quantifies the movement of old coins. Each coin earns one “coin-day” per day it stays unmoved; when it is finally spent, all those accumulated coin-days are “destroyed”. So a large value means coins that had been dormant for a long time moved that day — a more meaningful signal than raw transfer volume, which treats a coin moved yesterday the same as one untouched for years.
What does a spike mean?
A spike means long-held supply suddenly transacted — for example a whale or early holder moving coins that sat still for years. Historically these spikes often coincide with distribution phases or major holder activity. A persistently low line means day-to-day activity is dominated by recently-moved coins, with old holdings staying put.
How is coin age computed on QRL (no UTXOs)?
QRL is account-based, so there are no per-coin UTXO lots to age. We approximate at the entity level: each address accrues age since its last on-chain activity, and when it sends, CDD adds the sent amount × the days since it was last active. It is the same last-activity basis as the dormant supply chart. The consensus-banned 2022 inflation-attack address is excluded.
What unit is this in?
Coin-days — coins multiplied by days idle (shown in Quanta-days). The absolute number is large by nature (millions of coins × hundreds of days), so read the chart for the shape and the spikes rather than the exact figure. Pair it with dormant supply to see whether the old supply that moved came from the deep-dormant bands.