Both RBF and CPFP are ways to speed up a slow #Bitcoin transaction, but who pays the extra fee is the key difference:

**RBF (Replace by Fee):** This is like **the sender saying "Oops, forgot extra tip!"**. They create a new transaction with the same inputs (coins) as the stuck one, but with a **higher fee**, hoping miners pick it up first. Only the #sender can do this.

**CPFP (Child Pays for Parent):** This is like **the receiver saying "Here's some gas money!"**. They create a new #transaction "spending" from part of the stuck transaction's output, but also offering a much **higher fee**. This #incentivizes #miners to confirm both transactions together, un-sticking the first one. Only the receiver can do this.

Here's a table to summarize:

| Feature | Who pays extra fee? | Sender or Receiver? |

|---|---|---|

| #RBF | Sender | Only sender |

| #CPFP | Receiver | Only receiver |

Think of it like ordering food:

* **RBF:** You realize you forgot to tip and run back to add extra.

* **CPFP:** You ask your friend to order another dish with a bigger tip, hoping it pushes your order through faster.

Remember, using these features isn't always recommended, as they can add #complexity and potential risks. Choose the one that fits your situation and be mindful of #network fees!

#gm #nostr #coffeechain #plebchain #gfy