Qu’est-ce que RBF (replace-by-fee) ?
A signalling mechanism that lets an unconfirmed transaction be replaced by a version paying a higher fee.
If a transaction is stuck because fees rose after it was broadcast, RBF lets the sender rebroadcast the same spend with a higher fee. Nodes replace the original in their mempool.
RBF is the reason unconfirmed transactions should not be treated as final. Zero-confirmation acceptance is a business risk decision, not a technical guarantee.
Termes liés
Mempool
The set of valid transactions a node has seen but that are not yet in a block — the queue competing for block…
Transactions & feesCPFP (child pays for parent)
Unsticking a low-fee transaction by spending its output in a new, high-fee transaction, making the pair…
Comment ça marcheConfirmation
A block containing your transaction. Each subsequent block adds another, making reversal exponentially more…
Comment ça marcheDouble-spend
Spending the same coins twice. Preventing it without a trusted third party is the problem Bitcoin was built…
Cette définition fait partie du glossaire Bitcoin Logical. Pour l’explication complète, commencez par Apprendre, ou consultez les chiffres en direct sur Le Signal Bitcoin.