Are Ln Sats secured by BTC POW? Nope. Otherwise Watchtowers aren’t needed (which are retroactive and aren’t really security at all).
Can you send Ln Sats P2P without permission to a Bitcoin address? No, you can’t. If I want my Ln Sats off NOSTR, I need Strike or another channel to honor the redemption.
Ln Sats transactions don’t pay BTC miners and openings and closing channels don’t help:
