A custodial lightning wallet without accounts
nutstash is a custodial lightning wallet that uses the Cashu ecash protocol to protect your privacy.
Ecash works without accounts. Cashu tokens are bearer assets, that are stored locally on your nutstash wallet.
Choose your custodian nutstash is not a custodian. The custodian of your sats are the mints you connect to.
Nutstash wallet comes with a suite of features
Install Nutstash as a PWA on your device via browser. (iOS, Android or desktop)
Using your internet browser (on mobile, use the native browser) go to the browser settings, and look for an "install" or “Save to Home Screen” option.
Once Nutstash is saved in your device home screen, you’ll be able to access your wallet anytime. You can even send tokens peer-to-peer when you are offline
Nutstash can be accessed in any browser
Nutstash can easily be self hosted, so you know your code gets shipped safely
safety and privacy
Yes. In fact, there are many risks. Make sure to understand them before putting any sats into nutstash.
Please take these risks seriously. Don't put any money into nutstash that you're not willing to lose.
The Cashu protocol offers a blinding mechanism to unlink the creation of an ecash token from its redemption. This gives the mint or anyone else no direct link for parties involved in a transaction. The cashu protocol also works entirely without accounts. So theoretically it is impossible for a mint operator to determine how many users it has and who they are.
There are a few things to consider though.
See http://lconf.gandlaf.com or https://www.youtube.com/watch?v=UNjVc-WYdgE&t=105s for an introduction to the Cashu protocol. Or read the Cashu NUTs (Notation, Usage, Terminology) in Github here: https://github.com/cashubtc/nuts
Cashu doesn't have accounts. In fact, you don't need one. All the tokens are stored client-side, on your device.
Mints are Lightning node runners, that have decided to let you use their Lightning infrastructure to offer you a service. They will act as a custodian for your satoshis on the Lightning network, while they issue ecash to you, the user. You can think of it as in free banking, where the bank issues their own bank notes that is backed by gold.
Yes. Cashu doesn't protect against network level heuristics per default. Users should take precautions to protect themselves against leaking network meta data by using privacy tools such as tor.
Right now, Cashu is in its early development. There are not yet any professionally run mints. Find mints for playing around here: https://mintindex.gandlaf.com
Yes you can, and you should! At least for now, as we are still in the early testing phase. You can easily set up a mint by installing the Cashu extension on LNBits. (It's literally 2 clicks)
No. Each mint has their own tokens. You can however use the tokens from one mint and swap them over lightning for tokens from another mint.
Tokens and Wallets
A "token" (also known as "ecash" or in slang "a nut") is a piece of data that consists of a blindly signed secret. It was signed by the mint with the private key for a specific amount. Therefore a token is an IOU representation of satoshis that are custodied at the mint.
An ecash wallet is a special type of wallet. Ecash wallets are always custodial, since the ecash itself has no value. Cashu ecash represents satoshis, but the keys that control the actual satoshis on-chain are at the mint. So the easiest way to compare an ecash wallet is with another custodial lightning wallet, like wallet of satoshi.
Ecash wallets come with some additional features over traditional custodial wallets, such as: