Replying to Avatar Brisket

I haven't done a payjoin for a couple of years but I thought it required a cooperative receiver to add another input.

Is this correct or can you turn any any payment into a payjoin?
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Toxic Bitcoiner 3mo ago

I guess you can do a payjoin with yourself, not sure why you would. Typical it’s seen as a tx with another party. Payjoinv1 needed synchronous parties to be online at the same time. Payjoinv2 is asynchronous.

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Brisket 3mo ago

Interesting. I didn't know there was a second version.

I think I'll have to take another look at it. I'm struggling to imagine how an asynchronous payjoin could work.

🤙