Post
Topic
Board Bitcoin Technical Support
Re: Question about CPFP / RBF
by
Charles-Tim
on 29/08/2023, 06:21:01 UTC
frogx who is the OP of this thread is not asking about how to use child-pay-for-parent. He knows what child-pay-for-parent is and how to use it to pump transaction fee according to his question:

However, if address A sends address B a transaction with a low fee, and then B sends it to C, and then C uses CPFP to increase the fee, will the transaction actually confirm faster? I thought not, because the CPFP would only apply to the B to C transaction, and not touch the A to B transaction. Is this correct?

And he has already been given the information he needs:

So yes, C can use CPFP, but will need to pay a fee high enough not just to bump the B to C transaction, but also to bump the A to B transaction.