r/Bitcoin • • 20h ago

This watch mines Bitcoin.

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0 Upvotes

r/Bitcoin • • 17h ago

What makes a bitcoin transaction trustworthy?

0 Upvotes

One thing i find interesting about bitcoin is that transactions can be verified without relying on a central authority.what do you think is the most important part of this system that helps people trust it?


r/Bitcoin • • 11h ago

Should I buy bitcoin?

0 Upvotes

I love the stock market, and trading and stuff that I’ve never bought into bitcoin do you think it’s a good investment? Please let me know what you guys think.


r/Bitcoin • • 14h ago

David Attenborough: Bitcoiners in the wild 🦍🟠₿ In this film, we follow one of the most fascinating and least understood species on planet Earth

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7 Upvotes

r/Bitcoin • • 10h ago

Is this allowed here?

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73 Upvotes

As someone who enjoys bitcoin and excited for WoW forever.


r/Bitcoin • • 16h ago

Me: I'm here for the long term. Also me after 6 red candles: 👀

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35 Upvotes

My portfolio says HODL. My anxiety says check the chart every 5 minutes. 💀


r/Bitcoin • • 23h ago

Is Bitcoin cooked?

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0 Upvotes

Chamath says AI and quantum computing will crack Bitcoin and send it to zero.

Jack breaks down what Chamath gets wrong, where the real risks are, and how Bitcoin can adapt.


r/Bitcoin • • 22h ago

Paid in bitcoin: can your employer follow what you spend?

32 Upvotes

Your employer pays you 0.020 BTC. A few days later, your wallet uses that output to pay a shop.

Your employer knows the output they sent. They can see when it is spent and inspect the new transaction’s outputs and amounts. The blockchain doesn’t label them “shop” and “change,” but output sizes, a round price in local currency or a known address can provide clues.

A fresh address helps avoid address reuse, but the sender still knows the output they created. Moving the whole coin to another wallet may leave a direct one-input, one-output transaction. That shape alone doesn’t prove who owns the destination, but it doesn’t erase the trail.

Combining the salary with a coin from another source in an ordinary transaction can give an observer a reason to associate both inputs. CoinJoin can make the path to later spending harder to follow; combining a resulting coin with an identifiable salary output afterward can create a new link.

I wrote an illustrated article about what an employer can see and how different privacy tools address different parts of the problem:

https://medium.com/@molnardavid84/your-boss-pays-you-in-bitcoin-can-they-see-what-you-buy-2b9b7e00ddf3

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


r/Bitcoin • • 20h ago

Where can you spend Bitcoin in Los Angeles? new Bitcoin Magazine

4 Upvotes

Bitcoin Magazine lists four LA cafés that use Bitcoin regularly.

Café de Leche: Owners Matt and Anya Schodorf run two locations, one on York Boulevard in Highland Park and one at Cal State LA. The campus manager reportedly sees about 15 Bitcoin purchases a week.

Modu Café, Highland Park: Korean-inspired pastries, including a black sesame mochi cake and a perilla lime tart. It accepts Bitcoin on a Square terminal.

Directory: The 425 listings come from BTC Map, a community-maintained survey, so some may be out of date. Two notable mentions: Eco Coffee in Long Beach and Bohemian House in Glendale.

https://bitcoinmagazine.com/news/los-angeles-bitcoin-425


r/Bitcoin • • 19h ago

Shortwave Coffee Bitcoin, dope!

6 Upvotes

bitcoin's pumping and my coffee spot just started taking sats too, feels good man. shoutout shortwave coffee (columbia/st louis/minneapolis/tampa) for turning it on, bitcoin article if anyone wants the full story. green days hit different when you can actually spend the stuff lol

https://bitcoinmagazine.com/culture/shortwave-coffee-bitcoin


r/Bitcoin • • 18h ago

This comment made me laugh. Bro, you can buy those 10k now if you still have 2 btc.

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41 Upvotes

r/Bitcoin • • 19h ago

BTC++ announces Cold Storage conference...in Antarctica.

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21 Upvotes

I saw this on Stacker News this morning and it made me laugh. I've been to a few BTC++ conferences and always enjoyed them. But this has got to be the most awesome conference idea I've ever seen:

Cold storage keeps bitcoin offline. We’re taking the conversation somewhere colder. Bring your curiosity for an expedition of shared exploration, technical discussion, and time together.

Seems more like a vacation than a conference, but then again, isn't that what all bitcoin conferences are?


r/Bitcoin • • 2h ago

Found a neat little nick-nack on Vinted.

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179 Upvotes

$9, probably worth $2. But hey, it's cool and feels good in the hand. What are the odds there's anything on it, ya think?


r/Bitcoin • • 19h ago

I replayed a BTC-backed loan on every day since 2014. Even at 20% LTV, some got liquidated

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65 Upvotes

Many of us have looked at borrowing against our coins instead of selling. The offers show the interest rate. I wanted to know something they don’t show: how often a loan like that would actually have been liquidated.

So I replayed one on real hourly BTC prices (USD), starting a new loan on every day since 1 Jan 2014.

The loan: 12 months, 50% starting LTV, margin call at 70% with 48 hours to top up, liquidation at 80%.

Results

  • 41 of 100 start days ended with the coins sold by the lender.
  • At 20% starting LTV, 4 of 100 one-year loans were still liquidated. No LTV I tested survived every start day.
  • 56 of 100 margin calls came at night or on a weekend (Central European Time).
  • Raising the liquidation LTV from 80% to 90%, or getting 72 hours to top up instead of 48, changed almost nothing. A lower starting LTV and a shorter loan made the real difference.

Caveat: start days close together share the same crashes (2018, 2022...). So there are fewer independent events behind these counts than the numbers suggest.

Why I’m posting

I built a free tool from this, because I wanted to check offers myself: bitcoinloancheck.com

You enter the terms of an offer. It shows the chance of a liquidation before the loan ends, the liquidation price, and what the loan costs compared with selling. Full tables are on the Insights page.

To be upfront about what it is:

  • It’s my own project. I don’t work for a lender, and none is named, ranked or paid on the site. No referral links, no ads.
  • No account, no cookies, no tracking. It runs in your browser and your numbers never leave it.
  • Open source (MIT): github.com/boddenlennart/btc-loan-risk
  • It shows what happened in the past, not what will happen, and it isn’t advice.

I’d honestly like to receive your feedback. If something looks off, or a loan term you’ve seen can’t be entered, tell me in the comments.


r/Bitcoin • • 18h ago

12 years ago people talk about the possibility BTC market cap to hit 2.6 trillion dollars...

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263 Upvotes

ATH market cap in October 2025 was 2.52 trillion.


r/Bitcoin • • 19h ago

Passport Portfolios & Tax Strategy for Americans | Free Oct. 30 Webinar | CitizenX and Verify Wealth

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3 Upvotes

CitizenX and Verify Wealth are hosting a free webinar on Passport Portfolios & Tax Strategy for American bitcoiners this Friday, October 30 at 3:30 PM CDT.

  • How Americans build a passport portfolio and what a second citizenship can (and can’t) do
  • Tax planning under citizenship-based taxation
  • Asset protection options to pair with your Plan B

Includes a live Q&A.


r/Bitcoin • • 2h ago

Your daily reminder to HODL :) Paying 10 Bitcoin for Sushi in 2013 (Now worths 500.000 USD)

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5 Upvotes

r/Bitcoin • • 22h ago

When Bitcoin looks terrible, that's usually when the best accumulation opportunities appear.

185 Upvotes

Every time BTC looks terrible, the gurus turn bearish, and everyone starts predicting lower prices, it often turns out to be one of the best times to accumulate.

The hardest time to buy is often the best time to buy.


r/Bitcoin • • 10h ago

Jade block stream

4 Upvotes

How do you feel about jade as a hardware wallet ? Anything I should know about them ? Any recommended videos ?


r/Bitcoin • • 13h ago

Cedric Dahl

4 Upvotes

What happened to Cedric Dahl? He seemed to have completely dropped off the radar quite a few years ago. He was one my favourite early bitcoin YouTubers. Last time I heard from him I think he was on the Peter mccormac what bitcoin did podcast..... That was years ago.

Anyone know what happened to him and why he dropped off the radar?


r/Bitcoin • • 4h ago

uk purchasing - coinbase or binance

5 Upvotes

Been hodling for a long time but now want to buy some more. looks like fees have changed with coinbase so just curious for alternatives or agreement with coinbase or binance or anything else??


r/Bitcoin • • 13h ago

Charles Stross wrote the first work of fiction to mention bitcoin...and then removed it.

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19 Upvotes

I read a post that said that Charles Stross's Neptune's Brood was the first work of fiction to mention bitcoin. This is confirmed in a 2015 version of the Wikipedia page about bitcoin where it says:

In science fiction novelNeptune's Brood by Charles Stross a modification of bitcoin is used as the universal interstellar payment system. The functioning of the system is a major plot element of the book.

There is also a post on the economics blog, Overcoming Bias, that provides actual quotes where Stross mentions bitcoin in the book.

Slow money is a medium of exchange designed to outlast the rise and fall of civilizations. It is the currency of world-builders, running on an engine of debt that can only be repaid by the formation of new interstellar colonies, passing the liability ever onward into the deep future. … By design the slow money system is permanently balanced on the edge of a liquidity crisis, for every exchange between two beacons must be cryptographically signed by a third party bank in another star system: it take years to settle a transaction. It’s theft-proof too – for each bitcoin is cryptographically signed by the mind of its owner. … Suppose I wish to hire you – in another star system – to loan me a copy of your soul as indentured labor for a decade or two. …

So, you can imagine my excitement when, after a longer than expected wait, this book arrived in the mail and I read it.

First off, I'll say that it's a pretty great read and I highly recommend it. I've read one other book by Stross (Accelerando) and Neptune's Brood is full of the same weird twists and turns of futuristic thinking.

But...my copy doesn't have any bitcoin in it. (see picture)

I have the 2014 Ace mass market edition and every instance of the word bitcoin has been replaced with "cryptocoin" (or in one instance "cryptocurrency").

I've read that Stross is not exactly a fan of bitcoin, but the best explanation I can find is this comment of his from a Hacker News thread:

  1. Neptune's Brood is more heavily based on David Graeber's work on Debt (notably Debt: The First 5000 years).

1a. If you feel inclined to read Neptune's Brood, I've got one big regret: I wrote it circa 2010-11, before BitCoin really took off in the public eye, and used the term "bitcoin" for a not-like-our-BtC-honest cryptocurrency. (If I'd known BtC was going to take off that way the year the book came out, I'd have come up with a different name.)

  1. Paul Krugman is a cool person to go drinking with in a pub :)

I guess he asked his publishers to make the change for the mass market edition (the 2013 Kindle edition may be the only one that actually has the word "bitcoin" -- although I don't know about the 2013 hardcover).


r/Bitcoin • • 4h ago

Daily Discussion, October 28, 2026

6 Upvotes

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.


r/Bitcoin • • 21h ago

Early morning. 15 years of Bitcoin adoption in 4 illustrations.

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88 Upvotes

Growth may look slow on this scale but number of people choosing to hold Bitcoin has grown into the hundreds of millions.

Looking at the world behind the Bitcoin price, there are still roughly 95% of people having yet to experience Bitcoin although it is already likely accessible.

Figures are simplified estimates, intended to illustrate the pattern rather than precision.


r/Bitcoin • • 22h ago

Multiple high-severity vulnerabilities patched in widely used Bitcoin ecosystem libraries

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54 Upvotes

bitcoinjs-lib, bip39, bip32 and tiny-secp256k1 are part of the dependency stack behind wallets, SDKs and Bitcoin infrastructure.

Multiple security issues have been patched. If your project depends on these packages, directly or transitively, check your versions and upgrade to the appropriate patched releases.

Affected projects for just bip39 is 220k with each on avg having ~500k weekly downloads.

Stay secure 🤝