BTC: Local Mempool Transaction Entry Ages

Bitcoin Local Mempool Transaction Entry Ages: daily data through 9 Nov 2026.

The captured local mempool transaction count split into seven local entry-age bands.

Why use it. Compare recent entries with the older tail of this node's current mempool. How to read it. Bands cover 0–10 minutes, 10 minutes–1 hour, 1–6 hours, 6–24 hours, 1–3 days, 3–7 days and at least 7 days. Lower edges are included and upper excluded. Raw band counts sum to the capture population; an observed empty pool is zero. Smoothing transforms bucket-last bands independently. The hour/day point is the last actual accepted sample in that UTC bucket, not a time average. Earlier or missing samples and departed/replaced transactions are not reconstructed. Read capture clocks and gap coverage; a final sampling-period label does not confirm its transactions.

Calculation. Validate entry/dependency metadata and capture clocks for one Core population; count exact capture-minus-entry ages into seven bands. Age is local capture Unix second minus Core-reported local entry second, not network first-seen time or expected confirmation wait. Transactions have equal weight; virtual size does not weight age. Only one local Bitcoin Core node is observed; this is not a worldwide mempool census or a confirmation forecast.