BTC: Local Mempool Share with Unconfirmed Parents

Bitcoin Local Mempool Share with Unconfirmed Parents was 85.73% on 9 Nov 2026 (latest daily value).

The percentage of captured local mempool transactions with at least one direct unconfirmed parent.

Why use it. Compare direct dependency prevalence across observations. How to read it. All captured transactions form the denominator, not vbytes or output value. Empty populations have an undefined share; observed independent transactions can yield 0%. 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. Calculate 100 × direct-dependent transaction count / complete captured count 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.