Yes, it is possible to RBF with a completely new transaction with different addresses.
Unfortunately it is a mess to set up the tools required for it nostr:note1k0kkyl7mhmkgzvxy0atm7pt0cmyy89spmp2lqdyl9eu50zug4k5q6c39pa
Discussion
Just truc it
Question for you if I may be so bold, as you're likely a leading authority here.
Hypothetical situation:
-I’m running my own LN node.
-I put out some kind of zap-this-note-to-unlock offering. (Zap this note 1k sats and you get some shizzle.)
-There is a 1k zap showing on Nostr on the relevant note from npub X
-I didn’t see the zap land in my node and do not give npub X the aforementioned shizzle.
-npub X complains that the zap is legit and I’m screwing them over. A few bandwagon jumpers join the tread and I feel I have to clear my name.
Question:
Is there anything I can show to the wider Nostr world to clear my name and prove that npub X's zap is not legit, given I have access to all the node data, I have the zap receipt event (which I presume contains the signed request event)? Or no matter what I can show it's always going to be a case of my word against theirs?
Or is this kind of spoofing not relevant in this case—npub X just wouldn't have been able to spoof-zap me at all had I set things up right? (Only an issue if the zapper and the zapee are both untrusted, etc.)
Thanks!