Talking of paper Bitcoin, I've also been thinking about real paper Bitcoin in the form of ecash mint tokens that could be printed and used offline in third world countries as money.

I really like this idea, but is there anyway to verify the validity of a token without being online, to prevent fake tokens entering circulation?

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That’s interesting to think about… expiry QR code type, I think Calle has something like that with cashu

But I think you would always need at least the verifier online to query the network somehow

Network rollups meets Bluetooth mesh might offer something in the way of this if the wandering nodes could connect to a query hub that verifies on the network but at the root I don’t think there’s anyway way of “proving” without at least a central query hub

Yeh, I don't think it's actually possible to verify without access to the Internet.

I don't like the idea of expiring QR codes in the same way your $1 note doesn't expire.

The only way to do this, I think, would be to use a trusted third party that would print these notes with controls and forgery protection similar to most fiat note production.

I agree! Which actually could be something really viable for small villages on a long enough timeline

Imagine places with no access to banking only needing a small server hub with optimized hardware that can act as a mini paper mint (but with a hard money standard)

Ideally you’d want almost like a ombudsman style global technician team who deploys to do repairs to keep things honest

It’s a v cool idea for eventually

The head of the village or a nominated elder could be the trusted party.

Well, historically, that doesn’t end well

And there we complete the cycle of corruption 😂

Minting coins. You guys really like to reinvent the wheel 😂

You mean that square thing they attach to horse and carts?

I had an idea about that the other day, it involves Pi 😂

Make it pie and we're home

No. I think the solution is having a plethora of mints + mesh networks like #Reticulum

Banks runs keep the mints honest. This is an interesting use here. Similar to LN probing

https://audit.8333.space/

Funnily enough I'm trying out my Heltec V3 in Ventnor this week, I saw nodes around the coast like Chichester.

I saw nothing when I powered them on in Oxfordshire.

Nice! Reticulum nodes?

Meshtastic, thinking of trying Meshcore next.

I was in LoRa professionally until 2016, I didn't think it was going anywhere so I switched to Bitcoin, no it turns out Bitcoiners are becoming LoRa's 😂

https://mikehardcastle.com/2016/05/18/gaia-ai-and-robots/

Oh very cool! Check out #Reticulum, it's very similar, but has more scalability and features. It's specifically designed for voice + data over LoRa. All E2EE.

Reticulum.network

https://github.com/markqvist/Reticulum

https://linuxinabit.codeberg.page/blog/reticulum/

Also here's a node map

https://rmap.world/

Yes, I'm familiar with it.

Mesh networks with a few tollgate nodes distributed for internet access and a number of regional mints. Pass Ecash through messaging. Requires community though

Just an idea, maybe have a place in the givers wallet that he can scan the qr code and prove validation, while showing the recipient it's valid. Then when they give it, the process repeats.

I was thinking more like physical bits of paper, like dollar bills, no Internet, no computers, just paper money, but Bitcoin.

Yes that's what I was talking about a qr code on the bill for validation, then deposit said bill into account or spend it again