It feels so damn great to top up an anonymous e-sim card with Bitcoin paid from a Chaumian mint.
Discussion
Sent from Minibits.cash to nostr:npub1vr2nva0s0hhfulthjy8053rg9kruk5erzwaxdw85gjwkfytj994sgudzvx
That’s awesome
Something is bugging me.
Over lightning, sender privacy is good.
Over lightning, receiver privacy is bad.
Over ecash, receiver privacy is good.
Over ecash, sender privacy has a middleman.
Of course the mint doesn't know who you are, or what your source of income is, but they may know the target payee... Doesn't this open the door to potential censorship? A mint may refuse to perform the payment.
Also, seeing that the original tokens remain valid upon a payment failure, those tokens can just become blocklisted (breaking fungibility).
Correct me if I'm wrong, but it seems as if cashu improves receiver privacy, but can compromise sender privacy/targetability unless a proxy is used when making payments.
The mint know the destination but not who is sending it, correct. This is an intricacy of how LN works, there is a potential but complicated solution for this and that's source-based routing.
In principle, a Cashu wallet could contrusct the onion themselves and pass it on to the mint, much like how hosted channels work. It requires running almost a full Lightning client on the wallet side though.
I love this answer, I guess there are multiple right answers, from self routing, to using trampoline channels, and lnproxy servers (am I wrong about this one?).
The mind blowing realisation that as a consumer, you could utilise "banking" to handle complexities of lightning liquidity management but still take control of routing in the future, and therefore your privacy. 🤯
