Cashu is paper Bitcoin done right

Reply to this note

Please Login to reply.

Discussion

Beautiful! Now replace the serial number with the key set ID and add a Y barcode and we are golden 😍

That'd be beautiful

Like this?

🔒💯

I used to make these paper Bitcoin wallets for fun. They are highly scalable and private, because you pass the private key without using the blockchain.

The problem is, the issuer can prove there are coins in the wallet, and then rug you before you get home.

.webp

You're wrong.. you can secure Cashues with receiver pubkey!

Which makes the paper aspect useless because it would only be printed for one receiver to be used?

Why is it useless? You need to pay a single user so you can just mint some cashu for him and be sure he is the only receiver... No trustparties involved in.. that is the main problem that is the solution... Simple and direct!

But why would you print that on a paper bill?

Cause someone could take them everywhere without a connection and could share them offline

But you don't know the receiver's pubkey before you leave the house...

I'm just saying that securing with a receiver pubkey and paper ecash don't seem to go hand in hand 😅

No problem.. you could tied it after you receive it.. you generate the token in a wallet and share on the paper 😎

nostr:nprofile1qqsdumrr4wg808capt40nmvm7lf6w7d7ecwne2t7y9cckyav6q5r3xcpremhxue69uhkummnw3ez6ur4vgh8wetvd3hhyer9wghxuet59uq3gamnwvaz7tmwdaehgu3wdau8gu3wv3jhvr42lma 👀

👌🏾🔥👍🏿

Great one! How can the receiver be sure the bill is still backed? (Also in an offline Environment, no 3,4,5G, no wifi, no phone)?

Question good for the bearer as well as the receiver.

How can i print this cashu paper

WIP. But you can try and see if this output aligns. Since I don’t have a printer at hand. 😅 https://drive.proton.me/urls/9MN1FTGBDC#HmE3SFZBp0z1

I’ve been waiting all my life for a money like this.

If you are more interested in Blockchain technology, DM me privately.

Gwarn My G!

What have we solve

Boredom!

😅

The only money that we need printed.

👀

Sick 🦅