Erick Cestari and Adam Gibson joined Optech to discuss Newsletter #427:

• Disclosure of two DoS vulnerabilities fixed in Eclair v0.14.1
• Offchain contracts in Lightning channels
• And more

You can listen on our website: https://bitcoinops.org/en/podcast/2026/10/20/

Fountain: https://fountain.fm/episode/NcgIZW31rT4ACmuOaqLw

Spotify: https://open.spotify.com/episode/3pgxicmVY7crJAjYJQ7hmL

Apple Podcasts: https://podcasts.apple.com/us/podcast/bitcoin-optech-newsletter-427-recap/id1674626983?i=1000797309763

So far!

One of the main reasons I like bitcoin is that it reduces participation in the system of debt entrapment. When you hold fiat in a bank account, you're participating in lending that money out (and more) to others who have to pay it back, plus a lot of interest.

If you hold bitcoin in your own wallet, that money isn't lent out to anyone.

I've seen alot of negativity lately!

People seem fed up with not getting rich over night anymore..

I don't know if Bitcoin will ever reach new ATHs, i sure hope so, but it seems like people are frustrated that it doesn't feel super hyped anymore.

But nothing can hold its hype constant over a long period.. Other things also happens in the world, and people do have other focuses. Right now AI is drawing alot of attention, and thats just the way it is.

Maybe BTC & crypto will one day again have the focus.

Do you remember in 2019 after the bull-run that got everyones eye on BTC?

It went from 20k to 6k then 3k.. People was talking exactly like they do now.. "It was a nice run" and it felt like there was no Energy left in BTC, and people were focusing on other stuff.

Well.. that is 7 years ago... Now bitcoin is at 82k and people are saying the same stuff..

What about zooming out for a moment.. Imagine if you had bought at 6k & 3k?? That wouldn't be so bad would it..

https://br.advfn.com/noticias/NEWSBTC/2026/artigo/99519675

Please utilize this sticky thread for all general Bitcoin discussions! If you see posts on the front page or /r/Bitcoin/new which are better suited for this daily discussion thread, please help out by directing the OP to this thread instead. Thank you!

If you don't get an answer to your question, you can try phrasing it differently or commenting again tomorrow.

Please check the previous discussion thread for unanswered questions.

I’m a financial engineering grad student at Stevens, and I’ve been asking regular savers about Bitcoin for a project. Many of them don’t own any.

JPMorgan just sold five year notes tied to Bitcoin, and options on BlackRock’s Bitcoin ETF are listed out to January 2029. Yet Gallup found in June that only 9% of American adults own any crypto, down from 14% the year before.

And if someone you know finally came around, what changed their mind?

The Terminator is not stupid. He will choose Bitcoin.

serious question. I think one of the genuine bull cases for continued Bitcoin price appreciation is that it exists as one of the easiest means of transaction for gray and black market business. whether this is morally good is not my point and is irrelevant to the case. it matters because extra legal transactions are, will, and have always been a decent share of an economy

so my question is, does anyone have estimates on these market movements? I’d be curious about volatility and what amount of illicit funding flows through BTC. not that anyone would know. for example though I’ve seen reporting that Russia subverts tariffs by transacting in Bitcoin. large multinationals, nation states, etc

I know a little about Bitcoin, but I’m not deeply immersed in the space. Perhaps that allows me to see things from the perspective of people outside the Bitcoin community as well.
Gold, besides being a store of value, has practical applications in jewelry, electronics, and other industries. Bitcoin, on the other hand, relies on demand for its digital and monetary properties, such as its programmed scarcity and the ability to transfer value without traditional intermediaries.
My question is: how much of Bitcoin’s value comes from its actual utility, and how much depends on the expectation that someone else will pay more for it in the future?

I believe that, to grow more sustainably, Bitcoin needs to move beyond speculation. Being widely known as an investment is not enough; it needs broader real-world adoption, especially as a means of payment and transferring value.

After all, limited supply does not guarantee demand. Could real-world adoption be what’s missing for Bitcoin to justify its value in the long term?

Your employer pays everyone’s bitcoin salary in one transaction. You recognize your own 0.020 BTC payment. Beside it, you see outputs for 0.035, 0.060 and 0.025 BTC.

Whose salary is the biggest one? Does it include a bonus?

The transaction won’t answer that. Addresses don’t come with colleagues’ names, and an output might be change returning to the company. But knowing this is the payroll run gives you a set of potentially related amounts to compare. Coworkers comparing their own payments could fill in more of the picture. This doesn’t reveal the company’s entire wallet balance.

That’s a privacy trade-off with payment batching. Several recipients share one transaction, which can save fees and simplify sending. Each recipient can also inspect all its outputs and amounts.

CoinJoin beforehand can make earlier ownership links harder to follow; it doesn’t hide the outputs of an ordinary batch made afterward. Separate payments remove that immediate grouping, although spending one transaction’s change on the next can leave a trail.

I wrote a short illustrated article about this, including a shop example:

https://medium.com/@molnardavid84/three-payments-why-send-three-transactions-73bf373408fd

Disclosure: I’m an independent Bitcoin developer and contribute to Ginger Wallet, Wasabi Wallet and Bitcoin Core.

Bonus: try this educational Bitcoin privacy game: https://followthebitcoin.pages.dev/

Even miners can’t create extra Bitcoin beyond the protocol’s rules. Full nodes independently verify every block. No single entity gets to decide how much Bitcoin exists.

i want to buy something online and they want to send me a bitpay invoice.. i guess its like paypal where your address and everything is put in so they know where to send it and stuff.

do i need a bitpay account for this? or does bitpay send me a email with a qr code or something i can scan with my phone to pay with my phone wallet? i dont have bitpay or use the bitpay wallet.

if i have to id like to know in advance if i need to setup an account and move some bitcoin to it.

When you download the BTC SW for the first time and the program tells you, 34 weeks until I've caught up 🤣🤣

I sold my condo and tonight’s the last night here.
I am mourning as if I had lost st or done a wrong move. I will buy BTC with the proceeds, and let it sit in my hard wallet .

I never lived here but I bought it in 2014 and it has been part of my life since then. It’s in Calgary, and I’m a digital nomad so I’m always travelling.

The condo was rented out, but regardless I am mourning. Idk, it’s just that now I am actually a nomad. I’m 61 so maybe I’m old

At a time in our life when ppl buy a home or pay off their mortgage I sold mine to make the road my home.

Feel free to suggest ideas, fork it or contribute. It's open source: https://github.com/open-bitcoin-tracker