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Bitchat – A decentralized messaging app that works over Bluetooth mesh networks

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Re: Bitchat – A decentralized messaging app that works over Bluetooth mesh networks

#451

Earlier quoted context omitted.

Cryptocurrency transfers are irreversible, publicly verifiable and pseudonymous. For a privacy focused application, these attributes make crypto a better choice than USD and the traditional banking system.

> For a privacy focused application, these attributes make crypto a better choice than USD and the traditional banking system. So is cash. What we really need are ways of scanning a piece of fiat currency that instantly transfers that money to an account while then disabling the physical copy from the registry as valid. That's how silly I see crypto for anything other than illicit transactions

Cash is tracked via serial numbers in a lot of places, here is a recent article from Germany.

https://netzpolitik.org/2025/bargeld-tracking-du-hast-ueberw...

Re: Bitchat – A decentralized messaging app that works over Bluetooth mesh networks

#452

I’ve been toying with a concept inspired by Apple’s Find My network: Imagine a decentralized, delay-tolerant messaging system where messages hop device-to-device (e.g., via Bluetooth, UWB, Wi-Fi Direct), similar to how “Find My” relays location via nearby iPhones. Now add a twist: • Senders pay a small fee to send a message. • Relaying devices earn a micro-payment (could be tokens, sats, etc.) for carrying the messag…

> Senders pay a small fee to send a message. • Relaying devices earn a micro-payment (could be tokens, sats, etc.) for carrying the message one hop further. The Helium Network tried something like this, but with a fixed infrastructure: People were incentivized to run Helium network nodes and could earn micropayments for running nodes and handling traffic. It revealed a lot of problems with structures like this, such…

Cheating may not have helped but it was doomed to start with. I did the math for my local city and to have full coverage you needed 5 nodes there were thousands. Also the main customer: utilities companies would risk getting rates of transfer hiked. While startup cost would be around 500-600 to keep the control.

Re: Bitchat – A decentralized messaging app that works over Bluetooth mesh networks

#456

A bit different, as it's mainly for voice - but I made an app 'Murmur : Bluetooth Group Calls' - that lets you hold group voice calls and message via a mesh of Bluetooth LE connections. It's available on Android and iOS. https://apps.apple.com/gb/app/murmur-bluetooth-group-calls/i... Doesn't really get any downloads, so not sure there's much demand for this - but I use it with some shokz bone conducting headphones fo…

This is really interesting! Will have a look!

Re: Bitchat – A decentralized messaging app that works over Bluetooth mesh networks

#457

Earlier quoted context omitted.

You don't really need to. In IOU systems you extend credit to someone you know, based on ones reputation or credit score. How back in the day your local milk man would just keep a tab of what you owe. In a way everyone has something to barter: you owe the milk man, your employer owes you. Identities form a web of trust in the physical world.

But how would you eventually reconcile and settle balances? Would all payments be just non-fungible bilateral agreements? So if I paid the milkman for some milk, but there was no good or service I could later provide to him, he would be unable to take my payment to the butcher to buy some meat (unless the butcher was also willing to enter into a new bilateral agreement with me)?

Double spending & verifying identities isn't really an issue in a mutual credit system because credit lines are set between trusted parties. You’re replacing an algorithmic double‑spend check with a social credit check.

The butcher would have to trust the milkman in the real world to extend credit to him. At some point the butcher would go to a lender and borrow USD against the IOUs from the milkman. The lender knows the butcher, but can also evaluate the IOUs from the milkman by evaluating who owes the milkman, etc etc. Based on the level of trust the lender has in the butcher (and his IOUs) the lender can lend some hard USD to the butcher, and sell IOUs in exchange for USD to people wanting to join the network.

USD is also not backed by anything, and relies on trust. The important thing is that someone would be prepared to exchange IOU promises for USD/BTC/GLD - market makers. Demand for IOUs comes from people wanting to access the network.

https://news.ycombinator.com/item?id=25506414

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