Coin Days Destroyed (CDD)
Shows whether the coins moving today had been sitting still for years or only for days. Big spikes mean long-dormant coins woke up. Every point shown is real up to the date on the badge above the chart.
Every bitcoin earns one 'coin day' for each day it sits unmoved. The moment it moves, all those stored-up coin days are wiped out.
This chart adds up the coin days wiped out each day, so a coin that sat untouched for five years counts far more heavily than one that moved yesterday.
A quiet line means the day's movement was mostly recent coins changing hands. A tall spike means somebody moved coins that had not budged for years — the kind of owner who normally does nothing.
For example, 20 million coin days wiped out in one day is roughly 20,000 ₿ that had sat untouched for about three years suddenly moving. Repeated spikes during a price rally have historically meant long-time owners were selling into the strength.
In words: for every coin that moved today, multiply the number of coins by the number of days since they last moved, then add all of that up across the day. Computed in-house by our own Bitcoin node from every coin spent that day and the day it last moved, read from the chain.
Every point on screen was counted by **our own Bitcoin node** — a full copy of the blockchain that we run ourselves — and the line runs up to the date on the badge **above** the chart. A day our node could not count is left as a gap; it is never filled in from another source. Someone moving coins between their own wallets wipes out just as many coin days as a real sale, so a spike proves movement, not selling. Alert zones: the two dashed lines are measured percentiles of this exact stored series — 46,958,636 coin-days is the 97.5th percentile and 69,594,738 the 99th, taken over the 1,470 daily points we hold for 2022-07-14 → 2026-07-22 (1,265 of them counted by our own node, 205 from the retired outside feed; the chart itself now shows only our node's days).
Across that window the pair produced 70 band changes, about 17 a year. Neither line is a round number and neither is a forecast: they say **only** that a day sits in the top 2.5% or the top 1% of coin-day destruction we have on record. The heaviest days measured were 2024-05-28, 2025-07-04 and 2025-11-22. Our node's own count now reaches back to 2009, but both levels are still the ones measured on that 2022–2026 window; they have not been re-derived from the longer history.
Computed by Safu from its own Bitcoin node: for every coin spent that day, its amount times the days since it last moved, read from the chain. One point per day from 2009; the 90-day average line is worked out from those same days. A day our node could not fully count is left as a gap, never filled in from another source.
Computed in-house from Safu's Bitcoin node · 1 point/day since 2009 · recomputed daily