Do you think that I did that test manually?

No, it was done with a script without use of any external wallet, TX was crafted from zero and broadcasted with API


Also, perform it manually and transmit the transaction manually, using a basic approach. You can also use API for this purpose.


You might see something wrong, so let's do tests, you and I in private, if you want to share this, I'll also show you what I did, but we'll talk in private and I don't want to spread free isos.

mjojo

Thank you for slap his bigmouth

My friend, I wasn't saying that it's not possible to find the public key in the signature. That's why I left it there, because I already know that—I'm not stupid. The message I posted is exactly what I wanted to show and test. It was my transaction, and I don't believe anyone can override it with RBF using my method. I think it's difficult because I tried it myself, and my friends also attempted updates, but it just doesn't work. CPFP works from the part that receives (the wallet) to the sender. Based on this, I developed a good script. That's it, my friend. As for extracting the public key from the signature, that's easy, of course. That wasn't the purpose of my post. Hahaha.

Why, after sending it with my transaction, was nobody able to override it, not even with maximum fees, It really worked. The only thing that accelerated it was CPFP from others, separately, to speed it up. I set the fee very low, block with a low value, and no one could override it with RBF, as that function is completely blocked. However, I adapted a few things to make it work. I studied the DER signature and its correct sizes. Even the transaction itself must have the correct size to function properly.