You forget that -if you don't run your node- at least 3 out of 5 of these will be fake inputs because the node is operated by some intelligence agency.
nostr:note1k6zvw7rg3dv8mcmzgn9w0k90g95y8mw04tftm25ke2htfpkmutyqe0h3kr
Discussion
And, if the lighting multi sig participant node is a spook, you're p0wned.
How exactly is that?
Lightning just uses multi-sig wallet escrows for locking funds. You trust the 3rd signer.
This thread glows.
Zk merkle trees is the best option for privacy, hence tornado cash being sanctioned by sactioners.
Monero is holding up good regardless of its theoretical flaws.
2-of-2 multisig in lightning. No 3rd signer.
What's a zk merkle tree?
Here's etherium's well written white paper on it.
https://docs.zkproof.org/pages/standards/accepted-workshop3/proposal-semaphore.pdf