One difference: Liquid hides the amounts, which is great, but as it's a blockchain, the relationship between subsequent transactions is clear to be seen (transaction graph). That's not the case in cashu (ecash).
Discussion
We will also hide amounts (soon TM, WIP), it will have such insane consequences
Go on what are the insane consequences
Currently a wallet is composed of a bunch of nuts that make up your entire balance. We must do this to maintain privacy (all nuts with the same amount look the same to the mint).
When we hide the amount, we can store the entire wallet in a single nut while having better privacy than today. Wallets will be less than 1kb in size.
We will put them literally everywhere.
It will be in-fucking-sane
Interesting keep us posted
How reliable are payments compared to say lightning where payments still fail sometimes?
Bruv nuts within nutz tesseract-nut-4d
A nut in every application 🫂
Nutrections for everyone
I have no idea what is going on
Sounds amazing! Can I read more about this somewhere?
If you want to get knee-deep into the crypto:
WabiSabi paper on KVAC used for CoinJoins: https://eprint.iacr.org/2021/206.pdf
The Signal Private Group System and Anonymous Credentials Supporting Efficient Verifiable Encryption: https://eprint.iacr.org/2019/1416
We'll publish more resources on as we build out the protocol for Cashu.
So cashu is coinjoin on Lightning?