BTC: Transaction Replacements (Replace-by-Fee)

Included with Plus.

How many transactions each day were replaced in the mempool by another transaction spending the same coins.

Why use it. Replacements measure fee bumping: senders raising a stuck transaction's fee, or services replacing their own outputs. How to read it. High counts usually mean a fee-bumping flood or congestion; quiet days have a few thousand.

Calculation. Each transaction our node accepts is compared with the waiting transactions: one spending an output already spent by a waiting transaction counts as one replacement. Observed by our own Bitcoin node from 9 November 2026, from every transaction it accepts: a transaction spending an output some other waiting transaction already spent has replaced it. No earlier values are reconstructed. Other nodes see slightly different replacements; a replacement that reaches a miner without passing through our node is not observed.