BTC: Local Mempool Median Entry Age

Bitcoin Local Mempool Median Entry Age was 115,167 seconds on 9 Nov 2026 (latest daily value).

The middle local entry age among captured mempool transactions, in seconds.

Why use it. Read a typical local residence time with less influence from a few very old entries. How to read it. Each transaction counts once. An even population averages its two middle ages; an empty population is undefined. 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. Use one validated Core capture with consistent local clocks and dependencies. Sort captured entry ages with transaction multiplicities; select both central ranks and average if needed at 40 significant digits, half-even. 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.