E cash is a bearer token. It's integrated with lightning. As is backed 1-to-1 with sats. But by using it you're accepting certain trade-offs by using e-cash you are getting a 100% privacy Is on any payments made or received. Which is not the same for lightning or on chain. But at the cost of trusting the Is e-cash mint custodian not to run fractional or rug.

In theory, LN invoice to cashu, cashu send to xyz wallet like nuts, etc.. psy some peeps, get some zaps from npub.cash, then back to a new lightning invoice. 100% privacy where it came from, yes?