The original channel factory paper definitely doesn't. It doesn't even require CTV. What are you talking about specifically?
Discussion
Of course, it requires NOINPUT, or APO, not CTV.
What paper are you referring to? The original uses descending timelocks for updates unless I'm missing something.
Regardless, a simple coinpool like tr(
I see. I am talking about multiparty channels, which are often referred to as channel factories, but it's an ambiguous name.