Can a Transaction Be Removed from the Mempool? ⎊ Path

Can a Transaction Be Removed from the Mempool?

Yes, a transaction can be removed. This happens if it is included in a confirmed block, if it is replaced by a higher-fee transaction from the same address (RBF), or if it simply expires after a long period of waiting.

Different nodes may have different expiration policies.

How Does a Transaction’s “Replace-by-Fee” (RBF) Feature Attempt to Reduce Latency?

What Is the Role of “Network Latency” in a Successful RBF Double-Spend Attack?

How Long Does a Transaction Typically Remain in the Mempool If Unconfirmed?

How Do Replace-by-Fee (RBF) Mechanisms Help Users on a Congested Network?

How Does a “First-Seen Safe” RBF Proposal Attempt to Address the 0-Conf Security Issue?

How Does RBF Relate to the Concept of “Transaction Malleability” in Cryptocurrency?

How Does the Concept of “Double-Spending” Differ from RBF?

What Is the Practical Difference between “Opt-in RBF” and “Full RBF”?