Rsync25

alter_native

Darthcoin made a post about how SN should remove rewards and leaderboards and let people pay. I wonder how many of you were commenting and posting for free? Obviously, you all were paying for posting and commenting, which is why this platform was created.

Now he thinks he owns this platform and will decide how it should be run. SN is a platform, but it’s different from Reddit, X, Facebook, Twitch, Threads, Bluesky, etc. This is a pay-to-post platform as well as an earning one too because you get zapped. You can either use them to zap others or make posts (which is what most people are doing). Did you ever read the old tweets from Stacker News when they were launched? They talked about how many sats users had earned, and it’s clear they want to grow their user base which every platform needs to survive. Darth wants to hit the main nerve of SN which makes users happy and keeps them posting. Without it, people will move to Nostr or they might see less engagement too. Here's what k00b's bio says on X **"Reddit gives you upvotes. We give you bitcoin."**

Now he’ll cry, “Assmilkers are getting sats!” But that’s definitely not how rewards work. You can check  comments on his post about removing rewards. Undisciplined who didn't 
supported it https://stacker.news/items/796213/r/Imyourfed?commentId=796250 he also told "They are planning to decentralize the rewards, with each territory having its own. That would do a lot of what you want, without taking away something that is fundamental to how SN functions", Desertdave "like the idea of it all being the same as it is but no leaderboard to look at, comparing ourselves to each other. Then it would be a surprise each day what the rewards were. The rewards help motivate me to want to put out posts each day. Maybe I am an ass-milker. 🤷‍♂️ And I am definitely clueless so this probably isn't a topic I am qualified to share on. That's how I feel though." (I wonder now he might get mad at them too) and many more people who simply  disagreed to his "Open Proposal". The main issue is he doesn’t want SN to grow its user base, unlike @Desertdave, who supports introducing new users to Bitcoin through SN. **It’s simple: if you don’t like certain content, just downzap it and move on. There’s no need to harass people with disgusting memes and demeaning them**

It’s clear that SN is a platform that needs a strong user base, and rewards are key to that. Even k00b and ek have signaled that the rewards program will be improved. So let’s focus on building this community instead of tearing it. 

How Darthcoin Wants to Destroy Stacker News!

Imyourfed

Pretty much right when I got to stacker, I got involved in some drama where I felt attacked by DC. It really affected me at first. It didn't feel good having someone call me names and put me down. I was new to the space and feeling things out. I posted something as a joke about altcoins, and he didn't get the joke so he did what he does and started shit talking. 

I first started in "crypto" in 2017. I learned all the hard lessons. In 2020 I let go of almost everything I had to come live off-grid and mine Bitcoin with solar. A bold move. A psychopath move. This is a hard core bitcoin, low time preference change. I think it's obvious I am not a shitcoiner. But he didn't know that so I got over it. 

I have done my best to acknowledge DC for his value and be kind every way I know how. He does a lot of great work and I am grateful. I have tried my best make friends with him. And yet it continues. Anytime in interact with someone he deems a shitcoiner or an "ass-milker", he is right back at it. He never acknowledges my kindness either. He says I am fake and I smell like shit. He seems very angry and to really just like spreading hate. Maybe this is just the character of DC on stacker. Maybe in his real life he is kind, but I doubt it. Either way, I am over it. 

To me, this is bullying https://stacker.news/items/705765/r/DesertDave. When I see him bullying others, it is difficult for me to not want to get involved some how. I don't like seeing others hurt. So I am writing this to all those who feel like they have been victimized. And I am writing it as a reminder to myself. 

My advice is to not engage and just mute him. And maybe even downzap if you see him mistreating others. It gives him more power every time we engage with him. It's like feeding a fire. 

I am an advocate for real free speech https://stacker.news/items/789553/r/DesertDave , and I believe the incentives here on stacker will ways win out in the long run. We don't need anyone to tell anyone else what to share. He can continue doing what he does and it doesn't need to affect me what so ever. Maybe he will do his best to hurt me on here with his sats, like he threatens, but I haven't seen that play out. I have 99.9% positive and productive Interactions here and that is all that matters to me I don't think he can silence that. 

There are no gate keepers here. That's why I love it. No one to silence me or anyone else. It is truly unique. 

So if you feel like a victim, remember,  only you can take your power back. No one can "make" you feel bad. Only that which you give up, may be taken. I have felt triggered by him many times. And I am doing my best to learn to navigate it. This is my reminder. Since I have muted him, I have been enjoying stacker a lot more. I suggest you do the same if you feel how I feel. No need to go tell the teacher, @k00b @ek ,😉. Just take your own power back. Share what you want to share. We are in this together. 

I want to see stacker and Bitcoin be inviting to new people. Everyone is on their own journey with Bitcoin. Some people aren't there yet, even on stacker. And I don't think they get there more quickly by talking down to them. I have never convinced someone of something by shitting on them. So let's lift each other up. Let's meet new people where they are and help them understand why Bitcoin is different from the others. Let's lift our heads up high and speak our own truth with no fear. Let's be kind to one another. And remember that bullies are just emotionally immature hurt people. We can be compassionate with them while not letting them walk all over us. I appreciate you reading this. It was kind of a scary to write and share. Mention someone you know that you have seen get bullied here. Help me boost this post so more people can see it if you feel called. I love you all. Have wonderful day. 

Happy ass-milking, I mean stacking 💚

-dotd

@LowK3y19 @Coinsreporter @Imyourfed


If you have ever felt like a victim of @darthcoin...

DesertDave

bitcoin

## Decoding #2: Locking & Unlocking Scripts 🔒🔓

- *We're starting a series of posts to teach you about Bitcoin development. We'll be sharing them here. Tell us how we can make it better!*
- *If you prefer reading on the website, check 👉 https://bitcoindevs.xyz/decoding/locking-unlocking*

Locking and Unlocking Scripts define how transactions can be spent.


### **1- Locking Script**  
A script that specifies spending conditions for a transaction output.

![](https://m.stacker.news/64531)

Example:  
`OP_2 OP_ADD OP_4 OP_EQUAL`

Condition: Add 2, check if it equals 4.

### **2- Unlocking Script**  
A script that provides the data to satisfy the conditions in the locking script.

![](https://m.stacker.news/64532)

Example:  
`OP_2`  

Value: 2 satisfies the locking script condition above.

### **3- Execution**  
- Unlocking script runs first, followed by locking script.  
- If the stack contains `TRUE (1)`, the transaction is valid.

![](https://m.stacker.news/64535)

---
To see how this works in an interactive way, visit https://bitcoindevs.xyz/decoding/locking-unlocking

![](https://m.stacker.news/64533)

Decoding #2: Locking & Unlocking Scripts 🔒🔓

bitcoin_devs

bitcoin_beginners

Bitcoin Ecosystem Map [November 2024]

Rexdentron

This is a thinking out loud post. It might be totally unfeasible and I’d like to know if that’s the case.

In a traditional coinjoin, participants mix their coins with coins of others and get back the same amount (minus fees) they entered with. The outputs are of equal size which easily identifies the coinjoin transaction.

What if coinjoin participants were to make a payment to a third party (or to themselves, it doesn’t matter) during the coinjoin, i.e. they would be providing a typical combination of receiver’s address (or multiple) + change address. The following example illustrates the concept:

Inputs:
User A: 0.7 BTC
User B: 0.5 BTC
User C: 0.9 BTC

Total: 2.1 BTC

Outputs:
1. 0.2 BTC User B paying
2. 0.3 BTC User A paying
3. 0.4 BTC User C paying
4. 0.4 BTC User A change
5. 0.2 BTC User C paying
6. 0.3 BTC User B change
7. 0.1 BTC User C paying
8. 0.2 BTC User C change

Total: 2.1 BTC

Obviously, the inputs and outputs must make sense from the privacy standpoint in terms of amounts - there can’t be 0.8 BTC output which would be easily linked to User C. The coordinator’s task would be to identify such cases and reject them.

The anonymity set grows exponentially with number of participants and/or number of inputs/outputs. Technologically, it shouldn't differ much from the traditional coinjoin.

The privacy benefit should be clear, less block space would be used and less fees would be paid. Why not make most of the transactions collaborative in a similar fashion?

Contemplating about payments to third parties during a coinjoin

pycan

![](https://m.stacker.news/53400)

This week we launched an alternative Web App frontend for multiple Boltz backends. It is hosted by Github Pages at https://swapmarket.github.io for full transparency and ultimate reliability.

The swaps are non-custodial and atomic, so for the end users it should not matter whether they trade with the original Boltz or a Boltz clone. Clients can now compare and choose their swap counterparty by costs and liquidity considerations. The first in the list is always the original Boltz, so the swap is guaranteed to find a counterparty. There is no extra cost or risk, only the upside.

Anyone running a decent Bitcoin+Lightning+Liquid node can be on the providers list next to Boltz. We already onboarded the first independent swap provider, running an official Boltz backend on his private node. This means the game is on to decentralize and liberate this corner of the Bitcoin landscape.

Of course, until CT discounts are activated on the Liquid Mainnet, Boltz maintains competitive advantage for Liquid swaps. But not for long! You can configure and test your setup with Liquid Testnet in the mean time.

Would you be interested to trade on this "exchange of exchanges" or to onboard your own API backend?


Boltz exchange just got competition!

SwapMarket

deleted by author

sdfs

# Chaumian E-Cash on Bitcoin: Banks in Cyberspace or Regulatory Capture?

[Cashu](https://cashu.space/) is an open protocol enabling users to take advantage of Chaumian e-cash on top of Bitcoin.

What is Cashu and what are its benefits and trade-offs?

![](https://m.stacker.news/52450)

## Remember: It's an IOU, Not Real Bitcoin!

Cashu transactions are instant and free, and they add a lot of privacy to Bitcoin (and Lightning) transactions.

They can also be transacted offline!

However, BTC "minted" with Cashu are custodial IOUs, and are therefore generally only suitable for small value, short duration transactions, NOT for saving purposes!

So if you're allergic to custodians, this thread may contain NUTS (pun intended!)

## Open-Source Protocol Inspired by Chaumian E-cash

Cashu was created by a pseudonymous Bitcoin and Lightning Network developer @calle, and has been in active development since October 2022. 

Calle took inspiration for Cashu from David Chaum's DigiCash Chaumian e-cash system, conceptualized already in the 1980s.

## How Do Cashu "Mints" Work?

A "mint" means placing sats on a Lightning node that operates the mint.

In return, users get sat-denominated IOUs.

Users can then transfer those IOUs between each other without fees (if their IOUs are within the same mint).

![](https://m.stacker.news/52452)

### "Bitcoin Banks"

You can think of Cashu mints as "Bitcoin banks" serving users who can't afford or don't want to pay any transaction fees when transacting with BTC as a medium of exchange.

Instead of financial markets, Cashu "banks" interact with the Bitcoin protocol.

Cashu mint operators custody the BTC sent to the mint all the time.

However, mint users can send and receive these e-cash IOU tokens ("nuts") without the mint operators' permission (between the mint users).

### Digital Bearer Token 

There are no accounts or account balances in Cashu. 

Neither is any personal information required.

The e-cash tokens that users receive after depositing to a mint are digital bearer tokens that exist on the user's device! 

E-cash tokens are files stored on your device.

When you want to send e-cash tokens, you will copy a string of characters (representing the tokens) on your wallet interface supporting the Cashu protocol, and then send that string of characters to the recipient.

![](https://m.stacker.news/52453)

The recipient will paste that string to receive the tokens.

The transaction is instant and without fees because it happened within the mint issuer's Lightning node.

![](https://m.stacker.news/52454)

The sender can also redeem the tokens to himself by pasting the string.

In a way, you can think of e-cash tokens as a check, money order, or as gift cards.

### Privacy Through Blind Signatures

Cashu uses "blind signatures" to add privacy to transactions and to prevent double-spend.

Other users or the node operating the mint can't see users' e-cash balances or who they're transacting with.

Without going to cryptographic details, you can think of blind signatures this way:

You're voting in an election and writing the number of your chosen candidate on carbon paper and sealing the paper in an envelope.

After that, you bring the envelope to an election official who stamps it.

In the context of Chaumian e-cash, the stamped approval is the Chaumian mint approving that your e-cash is valid without knowing anything about the transaction (without knowing who you voted for!)

![](https://m.stacker.news/52455)

Tokens can't be double-spent because the file containing the tokens is destroyed cryptographically "at the mint" before new ones of equal value are issued by the mint to the recipient!

## E-cash Is Always Custodial

E-cash is custodial because the mint always holds the BTC. 

If there was no BTC backing them, the tokens would have no value.

You can think of it as the free banking system in the United States in the mid-1800s: banks issue their own paper notes that are backed by gold.

## Interoperable with the Bitcoin Lightning Network

E-cash tokens can be exchanged between different mints using the Lightning Network.

Lightning is the connecting tissue that brings e-cash mints together, and gives their users access to the Bitcoin ecosystem.

Imagine the Bitcoin blockchain transactions as huge freight trains carrying a heavy load.

Now imagine the Lightning Network as trucks driving that cargo along the highway.

And to reach the last mile to the end consumers along rural country roads, couriers are using e-cash as a messaging layer for transactions.

Visa and Mastercard don't move money either.

They just act as messengers between banks.

Without Lightning, e-cash wouldn't have much use since you couldn't send between mints.

Many e-cash wallets available now support paying Lightning invoices from the e-cash "balance".

![](https://m.stacker.news/52456)

However, e-cash wallets are not Lightning wallets.

You deposit with Lightning, get e-cash, transact with e-cash privately within a mint, withdraw to Lightning etc. 

Maybe in the future you can withdraw directly to on-chain too?

It's possible to swap between mints, but since more than one Lightning node is now involved, the transaction will inherit Lightning's privacy, not the privacy of the e-cash protocol.

![](https://m.stacker.news/52457)

## Use Cases: Custodial Wallets, Paywalls, Reward Systems..

Anyone can create a mint, whether it's for a wallet, paid streaming service, web paywall, or a voucher or a reward system for a supermarket. 

There is no reason why you should reveal your bank information and identity if you're reading a paywalled newspaper article (especially if it's a political article).

E-cash could be useful for people in countries with less developed banking infrastructure or where dissidents and political activists can't use digital money.

You could pay a VPN subscription with e-cash without revealing your identity. 

Or maybe AI agents could make micropayments to each other with it!

## Choose Your Mint Wisely!

Users can choose from different mints they want to join.

[bitcoinmints.com](https://bitcoinmints.com/?tab=mints) has a list of mints with accompanying reviews.

![](https://m.stacker.news/52458)

Mints can rug pull users so it's important to choose a mint you can trust, or treat the sats you're minting as funds you're willing to lose. 

Use it like a wallet in your pocket.

If you lose it in a bar with a few small bills inside, it's not a big deal!

There are plans to add a [proof-of-liabilities scheme](https://gist.github.com/callebtc/ed5228d1d8cbaade0104db5d1cf63939) for e-cash mints to mitigate the rug pull threat.

Epochs of e-cash could expire, force "bank runs" and thus encourage auditability for the mints.

## Considering Only Minting Sats You're OK to Lose!

The Cashu protocol is still in its early stages.

Funds can also be lost due to software bugs, so tread carefully!

If you delete your browser history, tokens will be lost unless you back them up.

It's advisable not to use a private browser (cache might get cleared).

## Nostr as a Social Layer for E-cash

E-cash users can use Nostr as web of trust for mints.

You can e.g. choose mints that people you follow have interacted with.

This could eventually weed out malicious mints.

If you're unfamiliar with Nostr, check out my earlier introductory post with some resources: https://stacker.news/items/558629

It's also possible to send e-cash via Nostr DMs!

For some reason during my testing I managed to send the tokens but didn't get the DM.

Maybe not all Nostr clients support the feature?

![](https://m.stacker.news/52459)

## NUTs as the Protocol Spec

Cashu the protocol is governed by NUTs (Notation, Usage, and Terminology).

NUTs are protocol specs for the functioning of the protocol, similar to BIPs in Bitcoin, BOLTs in Lightning, or NIPs in Nostr. 

NUTs from 1 to 7 are mandatory, and the rest are optional.

It's possible to add programmability to the Cashu protocol.

It enforces any scripting condition that the Bitcoin protocol allows.

Spending conditions, multisigs, timelocks, atomic swaps, HTLCs... 

## The Renaissance of E-cash

Bitcoin doesn't need e-cash, but e-cash needs Bitcoin.

E-cash was invented already in 1982 way before the birth of Bitcoin in 2008.

E-cash was waiting for Bitcoin to emerge and to operate as its foundational layer.

With Cashu, e-cash is witnessing a renaissance.

E-cash didn't take off with DigiCash in the 1990s, even though the company had made promising partnerships with major banks.

Microsoft was also interested in integrating e-cash with every sold copy of Windows 95, but the two companies couldn't reach a deal. 

DigiCash eventually filed for bankruptcy in 1998, and e-commerce was taken over by credit cards.

## Privacy Trade-off: Small Anonymity Sets

Besides the obvious custody trade-offs, there are also privacy trade-offs depending on the anonymity set of users.

Cashu uses fixed (power-of-2) token denominations to create a hide-in-a-crowd effect.

Cashu tokens come in denominations of 1,2,4,8,16, 32 etc.

Larger amounts could more easily be distinguishable from the crowd and thus erode privacy.

If there is only one token of specific denomination, it can always be linked backed to its creation. 

Although e-cash payments within a mint give a large degree of privacy, a mint could identify a receiver getting paid out to Lightning via the mint. 

Mints can also see users' IP addresses, access time and other metadata, so it's best practice to use Tor or VPN with Cashu.

## Possible Regulatory Capture?

It's uncertain whether the anon set will be large enough for good privacy if large banks and exchanges stay away from becoming e-cash issuers.

But, if they will become issuers, concerns of centralized chokepoints and regulatory capture could increase.

An e-cash issuer could slowly collect a large amount of sats to its mint, and then through regulatory pressure or not, start performing KYC of its users and telling them that withdrawal to Lightning is not possible without account verification.

Could Cashu be used for a CBDC-system interoperable with Bitcoin?

There is a window for a compliant use of e-cash.

The European Central Bank, Bank for International Settlement, and Swiss National bank have shown interest in using e-cash technology in their [CBDC designs](https://www.coindesk.com/tech/2022/11/10/david-chaum-rolls-out-privacy-protecting-cbdc-technology/ ).

The United States Congress also has an [e-cash act proposal](https://ecashact.us/) in the works.

Is this their way to fight Bitcoin? By flooding the network with government-controlled IOU tokens? 

Just like what happened with gold (the IOU became money)?

In any case, e-cash is an interesting experiment to make the custodial Bitcoin Lightning experience easier and more private.

With Cashu wallets, you don't even need an email... just start sending and receiving sats!

But remember not to get caught in the IOU trap!

Some wallets you can use to get started with deez nuts!

[Cashu.me](https://wallet.cashu.me/)
[Nutstash](https://nutstash.app/)
[Minibits](https://www.minibits.cash/)
[Boardwalk](https://boardwalkcash.com/setup)
[Shopstr](https://shopstr.store/)

What's your opinion on Cashu?

Is it a good privacy and scaling improvement for Bitcoin?

Thank you for reading this far!

Here's [210 Cashu sats](https://wallet.nutstash.app/#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) for you (if you're the first one reading this!)

## Additional Resources

[Awesome Cashu, a curated list of Cashu projects and tools](https://github.com/cashubtc/awesome-cash) 

["Is Cashu & Bitcoin eCash The Future?", video tutorial by Ian Major](https://www.youtube.com/watch?v=KiCGUWJ50Uo) @IanM

["Cashu Tutorial - Chaumian Ecash On Bitcoin", video tutorial by BTC Sessions](https://www.youtube.com/watch?v=riTRD0BdMDI) @BTCsessions

["Cashu: Chaumian E-Cash protocol for Bitcoin", presentation by Cashu developer Calle at Baltic Honeybadger 2023](https://www.youtube.com/watch?v=V6HBM7jL0cw) @calle 

["Blinding custodians with Cashu - Calle - Adopting Bitcoin Day 1 - Galoy Stage", presentation by Cashu developer Calle at Adopting Bitcoin 2022"](https://www.youtube.com/watch?v=UNjVc-WYdgE&t) @calle 

["Chaumian eCash in Bitcoin - Cashu & Fedimint - Adam Gibson aka waxwing", technical presentation by Adam Gibson](https://www.youtube.com/watch?v=VwMzNE1D3so) 

["PlebDevs Theory: Cashu Gets Nutty", technical presentation](https://www.youtube.com/watch?v=zhJZnxaLLU4) 

["Cashu workshop" by Super Testnet](https://www.youtube.com/watch?v=xfYmwc-gnK8) @supertestnet

[Animated slides explaining Cashu](https://lconf.gandlaf.com/) @gandlaf21

["Cashu: Chaumian E-Cash & Mints Over Lightning", blog article by Bitfinex](https://blog.bitfinex.com/education/cashu-chaumian-e-cash-mints-over-lightning/ ) 

["Bitcoin adoption using Ecash", guide by Darthcoin](https://darthcoin.substack.com/p/bitcoin-adoption-using-ecash) @DarthCoin

["Ecash Makes Bitcoin (And Fiat) Private With Calle’s Cashu", Bitcoin Magazine article by Frank Corva](https://bitcoinmagazine.com/business/ecash-makes-bitcoin-and-fiat-private-with-calle-cashu)https://bitcoinmagazine.com/business/ecash-makes-bitcoin-and-fiat-private-with-calle-cashu

["The Rise of E-Cash: Maybe you don’t need a Blockchain", by Nicolas Dorier](https://blog.nicolas-dorier.com/posts/cashu/ )

["How DigiCash Blew Everything"
](https://cryptome.org/jya/digicrash.htm)

## Project Links

[Website](https://cashu.space/)

[GitHub](https://github.com/cashubtc)

[X (Twitter)](https://x.com/CashuBTC)

Chaumian E-Cash on Bitcoin: Banks in Cyberspace or Regulatory Capture?

teemupleb

I was discussing with some people these days (in a bar, drinking some beers paid with sats) about what is Bitcoin as financial instrument.

And I made a simple drawing on a piece of paper using the 3 circles diagram, positioning myself in the middle:
![](https://m.stacker.news/51616)

### Where do you position yourself in this diagram?

I will explain why I position myself in the middle, based on how I use bitcoin and what is for me. Maybe for each one of you is something different.

*1. Bitcoin as money is:*
- medium of exchange
- unit of account
- self banking / self custody
- financial sovereignty
- worldwide acceptance (no need to use a currency exchange)
- property
- freedom of speech / censorship resistance
- no coercion
- path to freedom

*2. Bitcoin as asset is:*
- limited property
- still depending on a fiat currency
- capital gains
- possible coercion for taxation
- custodial / self-custodial
- dependable of a currency exchange
- you are still under a fiat system

*3. Bitcoin as currency is:*
- backed by bitcoin as money
- is used only as currency exchange platform, to facilitate exchanges between other fiat currencies (paypal over bitcoin)
- capital gains (maybe)
- property (maybe if is self-custody)
- possible coercion for taxation
- you are still under a fiat system

Discuss...

Where do you position yourself in regards of what is Bitcoin?

DarthCoin

Radentor

I made a map of all the ecash on bitcoin projects I could find:

![](https://m.stacker.news/39042)

Interactive version with links at the link above. 

Let me know if I should add anything. 

Ecash ecosystem map

Scoresby

This patch for [Neutrino](https://github.com/lightninglabs/neutrino) (serving blocks data to remote LND nodes) it will improve dramatically the use of "mobile LN nodes" using this type of connection with Bitcoin nodes. Many users were complaining about losing sync due to high latency ping with neutrino peers, that were far away from their location (and always they tried to find the closest ones). But now with this patch the high ping is not bothering anymore.

Interesting enough, this PR had the number 300 😂
https://github.com/lightninglabs/neutrino/pull/300

Many thanks to our fellow Kevin, LL developer that was working hard, together with Hampus and Nitesh on this PR !

Who will benefit directly from this improvement?
- Zeus users, using the embedded LND node, starting with the new announced v0.9.0 will include this patch.
- Blixt users, that also is a full LND node, starting with new announced v0.7.0, will include this patch.
- Breez users, maybe they will update it too, even that Breez is using a forked LND code.
- Nayuta users
- any other LND node runner, using [Neutrino to connect his LND node](https://docs.lightning.engineering/lightning-network-tools/lnd/enable-neutrino-mode-in-bitcoin-core). Yes you can run any LND node without having a full Bitcoin Core running to serve blocks to your LN node. And is just fine and private.

Nevertheless, I encourage any full node runner to activate on his node the block filters and deliver publicly blocks data for neutrino clients. It doesn't affect too much your node and is not leaking any private information. But in this way you participate more in the decentralization of the Bitcoin and LN network, helping remote users to get easily and faster blocks data with their mobile LN nodes.

A very important improvement for Neutrino (LND) is coming

I would like to make a recap of all known PoS (Point of Sale) systems with integrated Bitcoin payments, for small or big merchants, custodial or self-custodial, "ready to go" (no need any other complex installations)

### PoS
Definition - A simple UI where the user can add items, prices, stock, images and easily charge in BTC, directly from that PoS UI.

1. [BTCPay Server PoS App](https://docs.btcpayserver.org/Transmuter/EmailReceiptsPreset/#btcpay-pos-app-setup) - one of the biggest and well known self-custodial PoS
2. LNbits PoS - PWA or mobile app (useful for tablets), [offline shop](https://github.com/lnbits/offlineshop), [TPoS online](https://github.com/lnbits/tpos) and [offline device](https://github.com/lnbits/lnurldevice), self-custodial and/or shareable instance
3. [Zeus LN PoS](https://docs.zeusln.app/pos/overview) - integrated simple PoS into your mobile / tablet device, working with remote or integrated LN node. Keep in mind, the embedded LND node can be run in persistent mode and you could have a great simple solution for a small shop with an "always online" LN node connected to your PoS, self-custodial PoS
4. [Breez Wallet PoS](https://breez.technology/mobile/) - simple PoS UI in the app, self-custodial PoS

### Light PoS (payment terminals)
Worth mentioning OTHER systems that are NOT real PoS but could be used together with other PoS systems. It means you can input the amount and get a QR code for the LN invoice and can be very useful in small shops that want to start accepting BTC payments with their already in place systems.
- [Opago Pay](https://opago-pay.com/en/) - easy to use offline device that fw payments to your own wallet / LN address, the Bitcoin PoS for boomers
- [CoinOS](https://coinos.io) - very simple, non-KYC custodial account, web app with integrated swaps onchain-LN.
- [Blink Merchants](https://www.blink.sv/en/merchant-tools) - easy UI for small merchants, custodial, with fiat conversion
- [Wallet of Satoshi](https://walletofsatoshi.com) - simple integrated PoS into the app, custodial
- [Ibex Pay](https://www.ibexpay.io/ibex-pay-point-of-sale-for-merchants) - custodial, with conversion to fiat

A separate mention is [Odoo ERP system](https://www.odoo.com/), but need previous installation / configuration. But this one is a full ERP system that can be used with Bitcoin payments directly.

Do you know more systems / solutions? Please add them in comments.

Bitcoin Accepted - PoS systems

I do not understand most of the criticism of OpenSats. 

I mean, I think I do but it is couched in a lot of nonsense about secrecy and lack of transparency. I wonder if its sour grapes mostly. People that were not funded. People that are jealous. I dunno. It bugs me.

I'm not saying OpenSats is perfect but its just one of several orgs that support projects. Every time I hear an uneducated and unfair criticism of it I wanna say, "go do it better and show us how its done". 

One of my biggest pet peeves is when people infantalize themselves or others. People choose to give to OpenSats. People are capable of reading their web site, looking at the projects they support and deciding if they would rather donate directly to devs/projects or not donate at all.

There are many non-profits in the world. MANY of them I would never give any money to. It is insane to me to throw rocks at one that is supporting good things. I'm not saying they are above criticism but the criticism should be fair, informed, and logical. I see very little that fit that mold.

If you have a problem with someone doing at least some good, your message is easier to take if you aren't petty and unfair in your criticism. Criticism is needed and has massive value but many seem to suck at creating the valuable kind.

Constructive Critism vs. Unconstructive Critism of OpenSats

kepford

The following is an analysis of this bitcoin transaction: https://mempool.space/tx/b10c0000004da5a9d1d9b4ae32e09f0b3e62d21a5cce5428d4ad714fb444eb5d

That transaction does a lot of interesting things. Here is a partial list:

- it sends money to a non-standard bitcoin address that only contains 2 bytes ("bc1pfeessrawgf") where the standard is for addresses to be 20 bytes long

- that nonstandard address *should* appear on bitcoin explorers as the plain text term "non-standard" but the transaction author knew that mempool.space has a naive/buggy address parser and exploited that to make the address look like a valid-but-incredibly-short segwit address

- the transaction seems to attempt use every form of valid bitcoin input and output type: p2pk (the oldest output type, where you send money directly to someone's public key), legacy (the format widely used from 2010 to 2017 -- also tied for oldest, since Satoshi included this format as a non-default option in bitcoin v0), "bare multisig" where the output is a list of two or more public keys, P2SH multisig where the output is a "hash" of two or more public keys, "nested segwit," "native segwit v0," segwit v1 (i.e. taproot), plus two unusual lightning-related utxos: an in-flight HTLC and a force closure tx

- the input amounts contain several interesting numbers: 6102 is the executive order by which Roosevelt implemented a partial ban on self-custodied gold in the USA, 1913 is the year he did that, 1971 is the year the USA abandoned the gold standard, 2140 is the year bitcoin's block subsidy stops, 5139 refers to the CVE report number of bitcoin's inflation bug from 2010 where someone created billions of bitcoins and the network forked & rolled back to override it, 3220 refers to the CVE report number of one of bitcoin's only hard forks: the berkeley database fork, 17144 refers to the CVE report number of the 2018 "would-be" inflation bug that never got exploited, 8149 refers to the pull request that integrated segwit, 19953 refers to the pull request that integrated schnorr signatures, and I don't know what 9001 refers to, but there was a relatively minor bug in bitcoin core which was fixed in 2016 and had that issue number -- it involved getting a corrupted database if you had pruning enabled in bitcoin core and your pc crashed during initial block download...if it happened you would have to restart from scratch. I suspect 9001 is more likely a reference to the "It's over 9000!" meme from Dragon Ball Z

- the output amounts are the dust limits for bitcoin's various address formats: 576 for p2pk addresses, 540 for legacy addresses, 582 for bare multisig addresses, 546 for p2sh addresses, 294 for segwit v0 "regular addresses," 330 for segwit v0 "script addresses" and segwit v1 "taproot addresses", 240 for the non-standard 2-byte address, and 0 for OP_RETURNs

- the first and third inputs use uncompressed pubkeys, which are unusual in bitcoin because compressed pubkeys are smaller and cheaper (and required in segwit addresses)

- the fourth input (p2sh multisig) use a proof-of-work technique called "signature grinding" to produce a valid bitcoin signature that is only 57 bytes long. Normal bitcoin signatures are 73 bytes long (except schnorr signatures, which are shorter). It took the tx author a long time to do that and it was very expensive.

- the various signatures in the transaction use all of bitcoin's six sighash flags: SIGHASH_ALL, SIGHASH_NONE, SIGHASH_ONE, SIGHASH_ALL | ANYONE_CAN_PAY, SIGHASH_NONE | ANYONE_CAN_PAY, and SIGHASH_ONE | ANYONE_CAN_PAY -- and the last input (which is a taproot input) also uses SIGHASH_DEFAULT which was added for taproot and means you do "not" use a sighash flag, which bitcoin (post taproot) now interprets as being equivalent to SIGHASH_ALL (that is the flag most commonly used in bitcoin, and not adding a sighash flag saves you 1 byte, thus slightly lowering tx fees)

- the OP_RETURN output not only pushes text (which is normal) but also pushes all 17 numbers that bitcoin has special opcodes for

- the transaction hash is customized to have the tx author's twitter handle and a bunch of leading zeroes, which is very expensive to do and takes a lot of work

Analysis of 0xB10C's weird bitcoin transaction

supertestnet

An awesome project that tracks the statistics of all the coinjoin coordinators: https://wasabist.io/

Coinjoin explorer

kruw

nostr

Nostr has [events](https://nostr.com/the-protocol/events). Anything done on Nostr is an "event." Nostr has [kinds](https://github.com/nostr-protocol/nips/tree/master?tab=readme-ov-file#event-kinds). A "kind 1" is a text message, like below. 

https://files.peakd.com/file/peakd-hive/crrdlx/EoEiHmuNeina47rPCC7mFPFrMmXs4rLfKVqnCJ4FGzyPQSvnJVrSG53RNiNqjysdUYX.png

Source: https://nostr.com/the-protocol/events

Now, there's a new kind on the block. There is a [kind 30040](https://github.com/limina1/NKBIPs/blob/main/01.md) (as well as an accompanying 30041). 
>Note: kind 30040 is an "NKBIP" and not a "NIP," which is why it's not listed as an event kind on the [NIPS GitHub](https://github.com/nostr-protocol/nips).


##### Finding kind 30040

I first read about about a kind 30040 [in this note](https://njump.me/nevent1qvzqqqqqqypzphtxf40yq9jr82xdd8cqtts5szqyx5tcndvaukhsvfmduetr85ceqyt8wumn8ghj7un9d3shjtnfdenhw6t99ekk2tcpzdmhxue69uhk7enxvd5xz6tw9ec82c30qqstan4ywzqk984xkhfrxzm6htywy885ykpfza9rykthtaarq7ge95q8a4eev) by npub1m4ny6hjqzepn4rxknuq94c2gpqzr29ufkkw7ttcxyak7v43n6vvsajc2jl and I immediately thought, "This is fantastic." Three reasons made me think this:

1. Her goal, as I understand, is to get public domain (Projet Gutenberg) books onto Nostr. As a reader, I see this as a good thing.
2. First up is to first get the Bible onto Nostr in an organized, "clickable" manner. As a Christian, I see this as a good thing.
3. The kind 30040 reminded me of bitcoin [recursive ordinals](https://www.xverse.app/blog/recursive-ordinal-inscriptions) and [BitVM](https://bitvm.org/). This is great. What can we possibly mash up on Nostr with a kind 30040 or 30041?

##### Toying with kind 30040

Curious yesterday, I began to futz around. The habla.news note referenced a [wikifreedia post](https://wikifreedia.xyz/nkbip-01). Nostr user npub1m3xdppkd0njmrqe2ma8a6ys39zvgp5k8u22mev8xsnqp4nh80srqhqa5sf and npub149p5act9a5qm9p47elp8w8h3wpwn2d7s2xecw2ygnrxqp4wgsklq9g722q were on this. I referenced Liminal's [guide](https://wikifreedia.xyz/nkbip-01/liminal@nostrplebs.com) and Niel's [fork](https://wikifreedia.xyz/nkbip-01/npub149p5act9a5qm9p47elp8w8h3wpwn2d7s2xecw2ygnrxqp4wgsklq9g722q). After creating a Nostr profile (Turc Testerman) to mess around and use as a testing platform, below is what I achieved: 

https://files.peakd.com/file/peakd-hive/crrdlx/23t8EjqhFtsZcJxBquXWjqLeMcpEMMiQsoJQENZudTSB5cMRJ7GZpy1uEVw2NUmDjXA3r.png

At first glance, the image above is unimpressive. It's only two words. But, there may be more going on than is initially evident. The animated gif below reveals a bit more:

https://files.peakd.com/file/peakd-hive/crrdlx/Eo2BpKHrpFpQaWD34JWJhobhUuWsCrs63gW4Gvchw5Dt3a4Ky7jDSjCtjWyEBePRy1N.gif

See it on [highlighter.com](https://highlighter.com/a/naddr1qvzqqqr4tqpzqhc836gvaauxlg9vwafps2gv298rxvf7q7f4qlk32d6ucket4j4rqyvhwumn8ghj7un9d3shjtnwdaehw6r9wfjjucm0d5hsqqqlj89ep)

In the gif above, we are looking at a kind 30040 showing two other independent notes. Hovering over those two notes in Highligher reveals them as unique, as does the URL bar when they're clicked.

So, what's going on here is that those two notes, "Hello" and "world!" are just hanging out somewhere on Nostr relays. Then, the third event, the kind 30040 aggregated them together. 

The kind 30040 can be [viewed in raw form on njump.me](https://njump.me/nevent1qqsfwtl7j95vxujpfytntcldhqptrpm62mpfedr4ml444wjpspa4pzqprpmhxue69uhhyetvv9ujumn0wdmksetjv5hxxmmdqgs97puwjr800ph6ptrh2gvzjrz3fcenz0s8jdg8a52nwhx9k2av4gc3qrauv) (image below). That's great, though not particularly viewer-friendly or useful to a human. Finally, thanks to Highlighter, a useful, more visually appealing, and interactive UX is achieved. (See it on [highlighter.com](https://highlighter.com/a/naddr1qvzqqqr4tqpzqhc836gvaauxlg9vwafps2gv298rxvf7q7f4qlk32d6ucket4j4rqyvhwumn8ghj7un9d3shjtnwdaehw6r9wfjjucm0d5hsqqqlj89ep) and read note by npub1l2vyh47mk2p0qlsku7hg0vn29faehy9hy34ygaclpn66ukqp3afqutajft today [debuting this ability](https://highlighter.com/a/naddr1qvzqqqr4tqpzpzh8f3sc53cn7vsjjptmylwagdz2z9u79s6xjm5cfkw0usxfzwyfqyt8wumn8ghj7cn9wehjumn0wd68yvfwvdhk6tcqzpkrzceev4urwvtyxpm8y7n2v46qv699k8).)

https://files.peakd.com/file/peakd-hive/crrdlx/23t8AwWoiwte6UwhAc8DvCWhCNNcQaHwhkAbiUouBetzEC1Z6Y6gZQyn2YZh3KCiMcJWi.png
The kind 30040 viewed on njump.me The first yellow "e" is "Hello" and the second yellow "e" is "world!"

##### Pushing a bit farther...an example how-to

Why not do more? Let's do this: I'll now try to replicate what I did yesterday, I'll try to make a new kind 30040 that adds a smidge more, and document what I do as a how-to tutorial in case anyone else wants to try. 

This is how we push ahead open source style, right?

**Step 1** - grab the basic code for a kind 30040

<code>
{
  "id": "972ffe9168c37241491735e3edb802b1877a56c29cb475dfeb5aba41807b5088",
  "pubkey": "5f078e90cef786fa0ac775218290c514e33313e0793507ed15375cc5b2bacaa3",
  "created_at": 1719227601,
  "kind": 30040,
  "tags": [
    [
      "e",
      "19d8949206cdc775b94e82de6d77b75c1485e0aa3ee671c058415120a16adf46",
      "wss://nos.lol"
    ],
    [
      "e",
      "6428c8ac9a992a6b6e5789fc398e221ab1457b39839b174047a3cbfef4ca9214",
      "wss://nos.lol"
    ]
  ],
  "content": "Testing a kind 30040 event on nostr"
}
</code>

Note: This is a bit different from the code in the NKBIP. I had trouble with the "content" portion of it. The format in the NKBIP threw errors, something about the backticks. Hence, my "Testing a kind..." appeared in njump, but is not picked up by highlighter and shows "untitled." That's something for me to learn.

**Step 2** - go to https://nostrudel.ninja

Nostrudel, to me, has a ton of usages beyond just reading notes. One is the "Event Publisher" function. Go to Nostrudel, then "More," then "Event Publisher." There is some pre-populated data. You want to put the kind 30040 basic code in there instead. However, you do want to keep but alter the "created_at" timestamp. Take note of the number in the "created_at" line, then delete everything, paste in the kind 30040 basic code, then go back to "created_at" and put in your updated timestamp number. If you use the old timestamp, then I think it will work, but your kind 30040 will be timestamped incorrectly. Use the up-to-date and correct timestamp.

https://files.peakd.com/file/peakd-hive/crrdlx/23tSzChoWzbgkb8tJPKksYEjEQMhZkBrqPhzbnG2yzsgtPiprX9zgeSfS8PBFc9ZN2gNp.gif

If you get to the green "Yolo" button, things are good. If your json is incorrectly formatted, it'll throw errors and you'll need to fix those. (This is where the backticks in the "title" halted me.) Pressing Yolo will create a new Nostr event. It will be visible on njump.me as raw code and on highlighter in a pretty fashion.

**Step 3** - create your own kind 30040 with unique Event IDs

Using the "basic code" above will replicate my "Hello world!" because it uses the two "e" events I published yesterday. If you wish to create your own kind 30040, you need to gather your own preferred notes to aggregate.

For this example, I'll use a few notes I published yesterday from the npub1turcayxw77r05zk8w5sc9yx9zn3nxylq0y6s0mg4xawvtv46e23srqqnv7 profile. I'll keep the "Hello" and "world!" notes, but add a three more. What I need is the "event ID" for each note I wish to include. Below I'll illustrate how to get that ID on nostrudel.ninja. Notice there are three "IDs," for this, we want the first one simply called "Event ID."

https://files.peakd.com/file/peakd-hive/crrdlx/23t8D1dSeEGbiLJqap35MQhtVuz5nrfkA3nJkLQ6mqufZm2xBLKEByL2MvV1QuAiHpYCc.gif

For my new kind 30040 example, I'll list all five Event IDs here in the order I want them to appear:

1. 19d8949206cdc775b94e82de6d77b75c1485e0aa3ee671c058415120a16adf46
2. 6428c8ac9a992a6b6e5789fc398e221ab1457b39839b174047a3cbfef4ca9214
3. 9418ba17d1a918ded94cc65112daf41cee8e90daa8afd32623edb0d5846450c5
4. b6f03e814fbaea810c997bb59bdb0918105f74ebaecc98d0a5d7d74aad23d1f5
5. f9a6c3b9a1309ec9ded615d4463e2b49e914d15e74d09441ffa7343460baef4f

**Step 4** - build your json

Next, for each Event ID you wish to include, create a new "e" in the json code. You can change the relay if you wish (and maybe even leave it blank?). 

<code>
[
      "e",
      "this_is_where_you_paste_in_your_new_event_id",
      "wss://nos.lol"
    ],
</code>

You will have to be careful with your commas. Each square bracket [ ] is separated by a comma and there is not one at the end. Otherwise, your json will throw an error. (I had several yesterday!) You can use something like https://jsoneditoronline.org/ to work and see errors as you go.

Below illustrates pasting in the basic kind 30040 code, adding one additional "e" event, then adding the Event ID for that event. Notice the red json errors that emerged and needed to be corrected until it was "all green" and good to go.

![addingtojson.gif](https://files.peakd.com/file/peakd-hive/crrdlx/23tmjb2DYepMt9TyJcF8BDy5veyx5oeJ5Wc83NmyZ9j3zWDKNcKgpFsomoveiUoQVVue3.gif)

I did this twice more to get my five desired notes included. The final json code I wanted for my new kind 30040 (code below).

<code>
{
"id": "972ffe9168c37241491735e3edb802b1877a56c29cb475dfeb5aba41807b5088",
"pubkey": "5f078e90cef786fa0ac775218290c514e33313e0793507ed15375cc5b2bacaa3",
"created_at": 1719227601,
"kind": 30040,
"tags": [
[
"e",
"19d8949206cdc775b94e82de6d77b75c1485e0aa3ee671c058415120a16adf46",
"wss://nos.lol"
],
[
"e",
"6428c8ac9a992a6b6e5789fc398e221ab1457b39839b174047a3cbfef4ca9214",
"wss://nos.lol"
],
[
"e",
"9418ba17d1a918ded94cc65112daf41cee8e90daa8afd32623edb0d5846450c5",
"wss://nos.lol"
],
[
"e",
"b6f03e814fbaea810c997bb59bdb0918105f74ebaecc98d0a5d7d74aad23d1f5",
"wss://nos.lol"
],
[
"e",
"f9a6c3b9a1309ec9ded615d4463e2b49e914d15e74d09441ffa7343460baef4f",
"wss://nos.lol"
]
],
"content": "Testing a kind 30040 event on nostr"
}
</code>

**Step 5** - create your kind 30040

Back on Nostrudel.ninja-->More-->Event Publishing, I pasted in my new kind 30040 json code, changed the timestamp number, and pushed Yolo, as below:

https://files.peakd.com/file/peakd-hive/crrdlx/23tcNs5P2oVMEv9yffiUJiXxkXeJU9osLH6iVx8FoZcWvH5nFB1Fad3miHPgHCqpCAgHd.gif

Then I grabbed the event ID (go to "Custom Event on Nostrudel, then the code symbols <>, then IDs). Go to https://njump.me/about, paste in the ID, and "View." And there is [my new kind 30040 on njump](https://njump.me/nevent1qqsdcuqjrzt5vd46ud5a9zczvvfrhf4p0pevhuvddf7y3s8z6hdrpqqprpmhxue69uhhyetvv9ujumn0wdmksetjv5hxxmmdqgs97puwjr800ph6ptrh2gvzjrz3fcenz0s8jdg8a52nwhx9k2av4gcn46z7c), screencapture below:

https://files.peakd.com/file/peakd-hive/crrdlx/23twAQDSFZAhR5pLgwt1UAfVCcyCwSkdnNgXC2wR6evFoKxdfLuXvYGVS6hiHpWhpGYX3.gif

And, finally, here it is in a prettier fashion on highlighter with five different notes aggregated:

https://files.peakd.com/file/peakd-hive/crrdlx/23tw9kF8m6m2QgKmvaeSyMStfiu2Fb7yKW8SNzsshPYuuYbibeW7zve6abbudHZA67jVR.gif

See it [on highlighter](https://highlighter.com/a/naddr1qvzqqqr4tqpzqhc836gvaauxlg9vwafps2gv298rxvf7q7f4qlk32d6ucket4j4rqyvhwumn8ghj7un9d3shjtnwdaehw6r9wfjjucm0d5hsqqqlj89ep).

##### Conclusion

This kind 30040 does seem like a great fit for things like books. It can assemble individual notes scattered across Nostr in a hierarchical manner, present them in a usable interface, then deliver them. I imagine a stack of index cards. Each card is a note and on it is some information. They're strewn everywhere out there in the Nostrverse. A kind 30040 can gather the ones it wishes, order those cards however it wishes, then present a new "Table of Contents" for a reader.

With books, each note might be a chapter, or a paragraph, or in the case of the Bible, it might even be each verse.

I don't think a kind 30040 would work as I initially was thinking like a bitcoin Ordinal. For that to work, things would need to be concatenated...merged together, not listed on a page. My kind 30040 would have to read "Hello world!" instead of "Hello" and then "world!" as independent, although in order, notes. 

Still, this kind 30040 business is neat. Books seem like a natural use case. People are very clever though. We'll come up with more things to use this ability, grow it, morph it, fork it, launch from it. What can we build out on it from here?

>As an epilogue, regarding Ordinals...
>
>I know ordinals can be a divisive topic around bitcoin. (Even that word concatenated might have raised hackles with bitcoin's current [OP_CAT debate](https://www.coindesk.com/tech/2024/04/24/op-cat-proposal-to-bring-smart-contracts-to-bitcoin-finally-gets-a-bip-number/).) People get impassioned over silly frog jpg Ordinals clogging block space and ramping up fees (both true, but then, freedom and free market). However, I think there is great potential. Recursive ordinals aggregate data already the Bitcoin blockchain. If A, B, and C are already on chain separately, recursive ordinal D can simply stick them together into one as ABC. As I see it, this is what a Nostr kind 30040 does.
>
>I made [this recursive ordinal](https://www.ord.io/34145265) with all of Satoshi's written words. It looks unimpressive, but everything, the content of Satoshi's words and even the orange "website" code is stored on the Bitcoin blockchain, not some server somewhere that can be shut down. Satoshi's words will persist as long as Bitcoin persists. Details on this project are [here](https://hive.blog/hive/@crrdlx/recursive-inscriptions-part-2-of-3-case-studies). 



Nostr kind 30040

crrdlx

### A quick LN wallets guide for newbies

I've made another graphical reference of LN wallets for all those new users coming into the Bitcoin space.
BEFORE starting to use Bitcoin over Lightning Network (LN), please think about the use case you have.
This graphical representation could help you choose the right ones for your use case.

[![wallets-3-circles.jpg](https://i.postimg.cc/fRZVc4J8/wallets-3-circles.jpg)](https://postimg.cc/7fsP4W1z)

In this image, we can see that Zeus is the only one that can be used with all three options and with multiple accounts / connections.

Do not blindly follow the influencers advice to "use X or use Y app". Most of them don't even know well how those apps works or not even know the existence of better ones. They just feed you with the apps they (usually) are paid to promote or they use for themselves.

Choose your wallets based on your own usage and situation you encounter using your BTC.

Some aspects to be taken in consideration:
- There's no such thing as "best wallet" for everything. Remove this bias from your mind. Choose with your own knowledge, not because x and y told you so.
- I would not "recommend" any wallet app in particular, but those that are open source and have a good reputation/history and respect the golden rule of Bitcoin: not your keys, not your bitcoin.
- Use those that are open source and can be downloaded directly from their Github repos. [Here is a guide about using de-googled devices with Obtainium](https://darth-coin.github.io/beginner/bitcoiners-mobile-device-en.html)
- Stay away from "multicrapto" wallet apps. Are a fucking trap and usually are not open source! Bitcoin Only! Any app that contain anything else that is NOT Bitcoin is a crap wallet app. You have been warned!
- Use not just 1 or 2, but 3 or 5-6, each one will have its own moment to be used and take advantage of their best features for the case you need.

Learn more about each wallet app, to know them better and know in which case you could use the one that have the most appropriate features. I wrote several guides about BTC-LN wallets:
- [⚡ Lightning ⚡ Wallets Comparison Guide](https://darth-coin.github.io/wallets/lightning-wallets-comparison-en.html)
- [Getting Started Stacking Sats Noob Journey](https://darth-coin.github.io/beginner/getting-started-stack-sats-en.html)
- [Private ⚡️ Lightning Network Nodes ⚡️](https://darthcoin.substack.com/p/private-lightning-nodes)
- [Getting started with ⚡ Lightning Network ⚡](https://darth-coin.github.io/beginner/getting-started-lightning-en.html)
- [More specific guides for LN wallets](https://darth-coin.github.io/wallets/wallets.html)
- [What mobile device should bitcoiners use?](https://darth-coin.github.io/beginner/bitcoiners-mobile-device-en.html)

### Think like a bank, not just be a bank... - [Read the FULL guide here](https://darth-coin.github.io/beginner/be-your-own-bank-en.html)

A. HODL = your "central bank" with most of your stash, your reserve bank, barely moving it, onchain
B. CACHE = your "commercial bank" with medium size amounts, for redistributing to HODL and SPEND, onchain and LN, nodes channels etc
C. SPEND = your spending pockets, with small amounts, enough to cover your regular spending, LN, with funding source from your "CACHE bank".
![](https://m.stacker.news/36606)

Choose wisely your LN wallet you want to use

A coinjoin is a non custodial privacy enhancing transaction. I'm coordinating coinjoins for [Wasabi Wallet](https://wasabiwallet.io) and [BTCPay Server](https://docs.btcpayserver.org/Wabisabi/). **I'm not charging any service fee, you only pay for your own mining fees.** Opening Lightning channels using coinjoined funds provides an extra layer of privacy: Even invoices that reveal your channel's on chain UTXO won't leak any extra information from on chain analysis.

Larger coinjoin transactions with many participants provide more privacy and greater on chain efficiency than smaller coinjoin transactions. So far, my coordinator has the most liquidity out of the current coinjoin providers: https://x.com/LiquiSabi/status/1804198233301770567 / https://primal.net/e/note1cg4csv523667wq732qfnjqd08g9anfj46aewc9tnyy5u0gksfmaqthracm

To participate using Wasabi Wallet, paste this coordinator info into the settings field and click "Restart Wasabi":

 `https://btcpay.kruw.io/plugins/wabisabi-coordinator/`

![](https://m.stacker.news/36417)

Largest coinjoins so far:
Most inputs (164): https://mempool.space/tx/3d2234434745d227cc03177d44a47519e084dd1a342eabc376fa4d1ea41f2a6f
Most outputs (180): https://mempool.space/tx/df79e7cc214d4d8908b0abc078ef261ab5956211ed69be19942e75d4b811853f
Highest value with no change output (18.46 BTC): https://mempool.space/tx/4a7bb513dfaaec66bc0721e6762ceaad759b6fd15e22995ffe05eef396c16cd4
Highest value with change output (50.71 BTC): https://mempool.space/tx/d87f70403f8e945d7144508467cad0039310b8a608aa8b85725c6c6cf641d4f0

Free coinjoin coordination

devs

## BitcoinLink

During the Bitcoin++ hackathon, I built BitcoinLink as a simple showcase of how you can use Nostr Wallet Connect (NWC) to create non-custodial, one-time-use reward links redeemable via lightning. The service allows you to send bitcoin to anyone with a simple link redeemable with Lightning via NWC. The sender generates an NWC with either Alby or Mutiny, chooses a total budget and the number of links to split that budget across. BitcoinLink then generates a pseudorandom secret, encrypts the NWC with the secret, stores the secret in one or many links, and saves the encrypted NWC in our database. The receiver clicks one of the links, the app detects and decrypts the NWC, and sends the bitcoin directly to the receiver's wallet from the sender's wallet over lightning.

I was particularly proud of this scheme because it splits the encryption key and the encrypted NWC into two separate places. The server never saves the secret, and the sender can create multiple links from one NWC. However, despite this theoretically sound approach, I made a grave implementation mistake that allowed a hacker to access both the secret and the encrypted NWC, leading to the theft of one of my user's funds. 

In this post, I'll walk you through the hack, how I fixed it, and what I learned from the experience. 

## The Hackathon

I built the first implementation of BitcoinLink at the Bitcoin++ hackathon. During development, I made a few bad assumptions about how I could build my MVP, which required some architectural changes midway through the build. This is a common occurrence in hackathons, so I made the changes and continued on. I managed to get the MVP working and submitted it to the hackathon. I was thrilled with the result and excited to see people's reactions. After the hackathon, a few people approached me, interested in using BitcoinLink for various purposes, which was encouraging.
Following the hackathon, I made basic improvements to the UI and flow, added the ability to generate links with Mutiny Wallet, and created an API endpoint for programmatically pulling generated links. Unfortunately, during this time, I neglected to review my code thoroughly and audit the core flow of the app. Had I done so, I likely would have found the vulnerability before it was exploited. However, I was distracted by shiny new features and didn't take the time to clean up what had already been built. 

## The Hack

Last week, I woke up to a message from one of my users saying their Alby wallet had been drained of over 200,000 sats. I was shocked. I had built this service to be non-custodial and secure—how could this have happened? I quickly checked my logs and saw a trail of requests that appeared to be someone generating and claiming links, playing with the endpoints. My user had generated many links with a large budget on their NWC. The hacker got one of these links, accessed the secret, and decrypted it. But how?
I reviewed my code and quickly saw that one of my most critical endpoints was left unprotected, allowing the attacker to pull down the encrypted NWC if they had the ID. I was devastated. I had failed my users. The hacker, with a valid link someone else generated, was able to grab the secret from the link, pull the encrypted NWC from my unprotected endpoint, decrypt it, and drain it of its full budget. It was such a simple oversight—I couldn't believe I had missed this critical vulnerability. Because the code was open source, the hacker was able to play around with the service, discover the vulnerability, and exploit it all within a single night. 

## The Fix

Once I understood how the attack happened, I immediately began working on fixes. This started simple but quickly ballooned into a full re-architecture of the service and security model. I decided to move the decryption of the NWC and the payment into the execution context of my claim endpoint so that the encrypted NWC would never be exposed to the client. Payments could only be executed server-side for the exact amount encoded in the link. I also now duplicate and re-encrypt the NWC across my database with different unique secrets for each link/NWC and unique NWC IDs for each encrypted NWC. This effectively decorrelates all links and NWCs, ensuring that even if a secret gets leaked, an attacker will never have access to the encrypted NWC and vice versa. 

## What I Learned

This experience taught me a lot. It was the first time a project of mine had been hacked, the first time I lost (someone else's) money due to my mistake, and the first time I had to play cat-and-mouse with a hacker trying to pwn my users in real time. I'm very disappointed in myself for letting this happen, but I know it's important to share exactly what happened and take responsibility for it. I strive to be transparent with my work—everything I've ever worked on as a developer has been open source and done in public. It would be hypocritical of me not to share my failures as well.
Overall, this was an important learning experience. I gained a better understanding of security, the importance of code reviews, and the necessity of auditing your code to ensure it's secure. I have a newfound respect for the level of responsibility I have when building and shipping projects to end users, especially when they involve payments. I hope others will heed my warning and always proceed with caution and an adversarial mindset when building and deploying software. 

## Conclusion

With all of that out of the way, let me put my money where my mouth is. 

Here is a bitcoinlink that correlates to a 100,000 sats NWC that I generated with Alby (this one is a freebie, someone will be able to claim 1000 sats): https://www.bitcoinlink.app/claim/clxj1w9sn0001zjaemkmmv0uk?secret=6fb00c23ed97261f18d7fbf5ce71e6f5d524531bdf7be9cbb5cd65885f923e9f&linkIndex=ceab5be1-1422-405d-acc3-e21a4c12c41c
Here is the bitcoinlink [source code](https://github.com/austinkelsay/bitcoinlink) 

I invite anyone with the technical chops to take the information in this link and the source code and try to hack the updated version of BitcoinLink and drain my NWC. I'm fairly confident that my updated version of BitcoinLink will make this immensely more difficult, but I would love to be proven wrong. You can earn a decent bounty for doing so. If you do, please let me know how you did it so I can fix it and make it better for everyone else. 

Onwards!


My project got hacked and user funds were stolen

bitcoinplebdev

## Bitcoin Circular Economy - such a wonderful term, hard to achieve

We are bitcoiners and we want freedom and free market. Not gov intervention in our own businesses and use of our own money.

If you do not agree with this statement, please go back to your own statist cage and cry hard, voting whatever politician to rule your life, paying taxes, debate meaningless "legislation". This post is NOT FOR YOU.

### WARNING !
I REALLY DON'T GIVE A SHIT ABOUT ANY STATIST AND FIAT MAXI OPINION, so don't bother wasting your time and sats commenting this post. If you do not hate gov, fiat and banks, this post is not for you. This is a super extra bitcoin maxi post. So all haters can kiss my ass.

### Precedence
Why am I writing this post?
Because I am pissed off about so called bitcoiners pretending to be bitcoiners and in fact are just fiat maxis.
I am tired of all this misleading and influencing noobs, all this hypocrisy all around.
See this shamless post: https://stacker.news/items/573492 promoting the use of VISA (fiat) cards instead of direct use of Bitcoin payments.
![](https://m.stacker.news/35539)

### Why do we need a Bitcoin Circular Economy?

Because we want to get rid of fiat !
Fiat money is a disease that is consuming our energy.
For longer we use fiat, longer and painful is our journey towards freedom.

Less you are using any form of fiat, stronger will became Bitcoin.
Bitcoin, without circulation, it will became another meaningless IOU, fooling people into giving it away in exchange of shity tethers, stablecoins, fiat visa cards, CBDCs etc... 

DON'T LET THE FUCKER FOOL YOU AGAIN AND AGAIN!
Bitcoin is your own power you can get, it is YOUR property ! 

A VISA card is not your property and is not carrying any money, just IOUs. By using a VISA card YOU ARE LITERALLY CREATING FIAT MONEY FROM THIN AIR, you are perpetuating the use and creation of fake money ! You are fooling yourself !

PLEASE STOP THIS MADNESS OF FIAT USE !

Ask yourself: in which world do you want to live?
- a fiat debt world ?
- a freedom bitcoin world ?

Also a simply explained video here, a 4 years old video about how to achieve a Bitcoin circular economy and why is important:

https://youtu.be/GquPdAFQ40U

Why do we need to avoid as much as we can the use of fiat currency in any shape or form?
Here is a brilliant 15 min presentation by @jimmysong - FIAT DELENDA EST -  a MUST watch !

https://youtu.be/2nCzzgEwC7s

I will not repeat myself, I already wrote a guide here about [How ₿itcoin will save the world?](https://darth-coin.github.io/general/bitcoin-will-save-the-world-en.html).

In that guide I talked about pushing towards merchants adoption and how we can achieve that, by helping them.

Going to a merchant with a VISA card (that you previously loaded from your sats), IT IS NOT BITCOIN ADOPTION ! Is just a shamless fiat use and pushing forward the use of fiat railways. You are NOT helping that merchant to accept Bitcoin, you are NOT using Bitcoin in any way paying that merchant.

Please stop lying yourself that by paying with a fucking visa card you are helping "bitcoin adoption". It is NOT!

### Steps towards Bitcoin Circular Economy?

If you really want it, you can do it.
I myself I fought a lot to achieve this level. Is not easy, I know, but is necessary a lot of dedication and determination to FUCK THE BANKS, FUCK THE FIAT SYSTEM AND FUCK THE GOVS.
If your goals are not those, then please go back to your comfortable fiat slave miserable world. Bitcoin is not for you.

1. Start EARNING Bitcoin, not buying it anymore. This is the most important aspect ! Being paid in BTC. Convince your clients/ employers to pay you in BTC directly. Your mind will change DRAMATICALLY JUST BY THAT.
2. Reduce your spending as much is  possible. Move from big fucking cities where life is fucking expensive. Live a simple cheap life in a rural area. Grow your own food, spend less.
3. Convince ANYBODY around you to accept your sats. That is a key point. Start with fresh food producers nearby, they will be happy to take your sats (if you explain it well).
4. Stop paying taxes ! taxes are only for slaves. Work for yourself not for the gov. Gov is a corporation and a big fucking lie!
5. Read my guides: I wrote several guides about how to achieve this goal. I put very specific clues inside. Some of my guide even contain 12 words from a 1 BTC wallet... that nobody find it in the last 5 years !
6. STOP supporting any business that accept only fiat. Boycott them and use as much as you can those that accept BTC.

### Funny story about how to play with merchants.

Some years ago I was pushing a lot Bitcoin adoption around me. So I went to some local merchants and pushing them to accept BTC. From 3 of them only one was interested. But once he start accepting my sats as payment, I went to the other two and ask: "hey can I pay with BTC?" The answer was "no". So I said: "ok, I will go the one next to you that already accept BTC and also is giving me a discount for paying with BTC".

That really make them intrigued. Next weeks when I went again to the "fiat only" store, I asked: "hey are you considering accepting my sats?" The answer was "OK, but  don't go to the other shop." And I said: "fine, but keep in mind, the other shop is offering me a discount for paying with BTC. I am willing to pay you without discount just to help you get onboard. I will give you all support for free".

I hope this post will help many fiat maxis to change their mind and all other bitcoiners, find the right way to push bitcoin adoption in their local community.

START SMALL, THINK BIG...
Removing myself from a fiat world was not easy !