What you can functionally do with a lightning wallet and lnbits lnurlp and lnurlw extensions can also be done with cashu.

The difference is that a cashu token transfer doesen't happen over a lightning channel, doesen't require any server-side "account" for the end-user, yet allows a cashu token holder to send and recieve sats on the mint's LN node over the lightning network, and the server has no knowledge of who holds a claim on any token. The more users of a mint, the more anonymonity of the users, so it somewhat also provides a "mixing" function.

When you create a token to send to someone, its very similar to sending them single-use yet fungible paper money. When you send it to them, you are giving them essentially a password to redeem tokens, though the password contains the tokens themselves. The recioient redeems the tokens from the mint, and the mint gives them new tokens in return but the mint doesent know who gave the tokens to you, it only knows you have some tokens of the amount you redeemed, and it doesen't know that they were your's when they are redeemed by whoever you give it to.

Another feature of an ecash token is it should never expire (unlike an LN invoice), so you can keep it in your cashu wallet, or on a piece of paper, as long as you like.

The mechanics of ecash is quite different than lightning, and you will come to understand this the more you use it.

#ecash #cashu