Each coin that moved on the day (our ledger keeps outputs of 0.01 BTC and up), multiplied by the days it had been sitting: one coin that had not moved for a year counts 365, a coin that moved yesterday counts one. Bold line = 30-day average.
42,396,724 coin days destroyed on Oct-22 2026, the last day in this build, measured and published by askthetape.com.
Coins have a memory: every one of them knows the day it last moved. Take everything that changed hands on a day and weigh each coin by how long it had been sitting — a coin that had not moved for a year counts 365 times as much as one that moved yesterday. The total is what chartists call coin days destroyed, and it spikes when old money wakes up. We rebuild it from our own copy of the ledger, every day since the first block, so an old-coin day in 2013 and one this week are counted by the same rule. The second view divides it by the coins our ledger holds, which lets a 2015 day and a 2026 day sit on one scale.
| leg | our own copy of the UTXO ledger (it was built once from a public chain archive and has been extended block by block from our own node since 2026-07-23): every output of 0.01 BTC and up, with the day it was created and the day it was spent (6,797,539 rows on this build, ledger to 2026-10-22) × exchanges' published daily closes (Bitstamp from Aug-18 2011; the Mt.Gox tape before) · CDD = Σ value × (day spent − day created), by the day of spending |
|---|---|
| cadence | daily, UTC |
| since | 2009-01-03 (first block with a spend) |
| 🩸 the flag is ours | the binary view is our own rule (CDD above its own 365-day average), written out here. |
| policy | no backfill · read it here · export: whole history |
| hourly window · where it comes from | Selected hourly spent-output series from January 2009 to 15 November 2025 use a public chain archive, recomputed with our own formulas. From 16 November 2025, those series use spent-output events read from our own Bitcoin node. Outputs below 0.01 BTC are excluded. Coverage and age rules vary by key; unverified historical zero-fill is blank and flagged. Historical publication times are not recorded. Native-only lines retain their own shorter coverage; exact coverage and formulas are listed per key in the export definitions. |
| hourly window · how the hours fold | A FLOW: hours ADD UP — the day is the sum of its hours, not their average. «N hours» in the window's own header means BUCKETS WITH DATA, not the distance from the first point to the last — the header prints both. Selected spent-output flows are zero in verified no-block hours; ratios, states and other missing observations remain blank. Block counts are a separate series where present, and describe the native node segment only. |
| hourly window · what this ledger cannot see | the ledger does not see outputs below 0.01 BTC — that is 87,202 BTC, 0.434 % of the coins alive on 2026-10-22, measured against what our own node counts as mined (the scheduled subsidy of every block header it holds). It is a threshold, not a fault, and it is the same threshold the daily page carries. |
| hourly window · which price | No price enters the selected spent-output flow or age-ratio formulas. Calendar-day age uses UTC date differences; fractional-age and stock-derived native lines retain their separate definitions and shorter coverage. |
| hourly window · one line or two | Definitions identify the coverage and formula of each line. Calendar-day-age and fractional-age measures remain separate; the earlier history applies only to the selected spent-output series. |
| hourly window · judged | This comparison covers the native node segment from 16 November 2025 only: 🩸 12 birth × spend cells on 3 of 341 closed days differ from the daily ledger of our own node — see the judge log; this window is not vouched for until that is explained. Judge run 2026-10-23, 13.3 hours ago. The judge runs daily against the daily ledger of our own node; a day the 35-day carrier no longer holds is not judged rather than counted as a difference. |
| this build | data to Oct-22 2026 |
| policy | no backfill · read it here · export: whole history |
The chart itself is drawn in the browser: turn JavaScript on to hover a day, pick a window and draw your line. The numbers above come from the last build, Oct-23 2026 21:24Z.
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