r/Bitcoin Jul 30 '26

Security Advisory for Coldcard Hardware Wallet

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r/Bitcoin 2h ago

Daily Discussion, September 08, 2026

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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 15h ago

7 miner wallets from the Satoshi-era moved BTC after 16.5 years

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What do you guys think about this?


r/Bitcoin 6h ago

Today i finally decided to embrace the bitcoin religion

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I’ve been reading here for quite some time already. I did my research, and yes, I’m joining you folks!

But I want to keep things as simple as possible, so I’ll just buy every dip and give it at least 5 years before I decide whether to sell some.

I’m definitely not going to sell everything, that’s for sure!

Give me more tips aside from holding your satoshi’s in a cold wallet.

Thank you, folks!


r/Bitcoin 8h ago

😂😂

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r/Bitcoin 14h ago

The hassle to move 50k BTC

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The Dutch moving 27 tonnes of gold from the US to London


r/Bitcoin 18h ago

Bitcoin will overtake: The British pound at $214K. The Japanese yen at $499K. The Euro at $943K. The US dollar at $1.2M. Gold at $1.6M.

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r/Bitcoin 8h ago

Your seed backup isn't a backup until you've restored from it once

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The standard advice stops too early. Write down your seed, store it somewhere safe, done. The step almost nobody does is check that the thing they wrote down actually works.

People find out years later. A missed word, two words swapped, a 6 that was a b. By then there's nothing left to compare against.

Testing costs almost nothing. Use a cheap second hardware wallet or a wiped spare phone. Restore from the written words only, not from anything still sitting on your main device. Then compare the first two or three receive addresses against your real wallet. If they match, the backup is proven. Wipe the test device and you're done.

If your wallet shows a master key fingerprint, usually labelled XFP and shown as 8 characters like A1B2C3D4, that's a faster check. Same seed and passphrase always produce the same fingerprint. One wrong word produces a completely different one. It comes from a public key, so it isn't secret and you can write it next to your backup.

The passphrase deserves its own warning. A wrong passphrase doesn't throw an error. It quietly builds a new empty wallet, so "my coins are gone" and "I typed one character wrong" look identical on screen. If your passphrase only lives in your head, your seed backup on its own recovers nothing. Back it up separately, in a different place to the seed.

Do the test once at setup, and again any time you rewrite or move the backup. Twenty minutes, and it's the only part of self custody you can prove works before you need it.


r/Bitcoin 1h ago

I feel like I’m missing something really obvious about Bitcoin

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Okay, so this might be a slightly embarrassing question, but I’m a woman who has somehow spent the last few nights going down a Bitcoin rabbit hole and I still don’t understand how it actually works 😭
I’ve read articles, watched beginner explanations, and even tried following some of the more technical explanations, but I keep getting to the same point where I understand all the individual words and somehow still don’t understand the actual process.
I understand that there are wallets, private keys, transactions, miners, nodes and the blockchain. What I don’t understand is how those things actually connect.
For example, if I have 0.1 BTC and send 0.05 BTC to someone:
● Where is my Bitcoin actually stored before I send it?
● What exactly happens when I press “send”?
● How does the network know that I’m allowed to spend it?
● Who checks that the transaction is legitimate?
● What actually changes on the blockchain?
● And where does the 0.05 BTC “go” afterwards?
The wallet part especially confuses me. People say your Bitcoin isn’t actually inside your wallet, which makes sense when it’s explained, but then I don’t quite understand what my wallet balance is actually representing.
I know these are probably very basic questions, but I’d rather actually understand the system than pretend I get it because I can repeat the terminology.
If anyone here is good at explaining technical things to someone who isn’t particularly technical, I’d genuinely appreciate it. And if you’re someone who enjoys explaining this stuff and wouldn’t mind answering a few very basic questions privately, I’m completely fine with that too.
Please be gentle with me lol. I promise I’ve tried to do my homework before coming here. 😅


r/Bitcoin 13h ago

If someone had 100k btc how would they sell

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What would be the process to sell it all? obviously you cant just chuck it onto a few exchanges


r/Bitcoin 15h ago

the Liquid "Whitehat"-Hacker keeps 600 bitcoin

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r/Bitcoin 6h ago

I'm sorry. I can't watch you go through this.

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pls mods. ive only spoken highly of you


r/Bitcoin 11h ago

Gonna DCA btc every week forever

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I swear to dca btc with $50 every monday and more as my pay increases but never gonna stop its the only way, i cant believe ive been in crypto since 2017 and i have nothing to show for it, done it all trading, memecoins, “utility” coins i watched tens of thousands evaporate so many times, im done with ignoring the only true store of value btc is the only thing thats real.


r/Bitcoin 22h ago

I'm tired

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I've been HODLing since 2013. I've sold probably two thirds of my original stack over time. I have been through multiple cycles and halvings and read more books on the subject that I care to remember. I have traded successfully only once and that was by accident. I have no idea where BTC is going and I am exhausted. I am close to cashing out. I'm close to retiring (pension age) and I don't need the volatility. What would you do?

EDIT: specifically, the things that trouble me are: 1. The hassle of getting the cash from an exchange into a UK bank account without friction. 2. The CGT liability - last sale was ~0.33BTC in Dec 2024 and the tax liability was something like £10k. 3. The blind evangelical ramblings in Reddit from people that have been in the market for like 5 minutes.

EDIT #2: Thank you to those that offered advice. It has given me food for thought. I think the answer is probably to log out of Reddit ;-)


r/Bitcoin 3h ago

I have a transaction issue,can I get help here?

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I swapped BTC to cosmos and I haven’t received my cosmos ever since then


r/Bitcoin 11h ago

Am I too late to get into ₿itcoin?

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I remember hearing about Bitcoin years ago and thinking it was a scam. Just internet money with no real future.

I ignored it, watched it grow, and kept telling myself there was still plenty of time.

Now I’m looking at Bitcoin completely differently.

Funny how something you once dismissed can eventually make you wish you had paid attention.


r/Bitcoin 19h ago

The current uncomfortable state of Bitcoin security

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Bitcoin has spent 17 years surviving one of the most adversarial environments in software.

But Bitcoin Core isn’t where most users interact with Bitcoin.

They interact through wallets, hardware devices, Lightning implementations, libraries, exchanges, signing infrastructure and other software built around it.

Over the past few months, I’ve been researching the security of projects across this ecosystem, and the uncomfortable part isn’t that vulnerabilities exist.
It’s how little continuous adversarial security research some important projects actually receive.

An audit is a snapshot. Open source doesn’t mean someone capable has actually reviewed the code. A large number of users doesn’t mean the project has been continuously attacked by security researchers.
And then there’s the incentive problem.

If reporting a vulnerability responsibly means hunting down a contact, waiting weeks for a response, receiving no bounty or recognition, and sometimes being treated as an inconvenience, eventually good researchers spend their time somewhere else.

Blackhats don’t need a disclosure policy.
That leaves us with a strange situation:
Bitcoin teaches us “don’t trust, verify,” while much of the software surrounding Bitcoin is trusted far more than it is independently verified.

I ended up writing a fairly detailed piece about what I’ve seen and why I think this is becoming a real problem.

I’m not linking it here because I’d rather this not turn into self-promotion.

But I’d genuinely like to know whether people working deeper in Bitcoin have noticed the same thing.


r/Bitcoin 1h ago

Introducing BTC PoW Lab Pool: Hybrid Solo rewards and an interactive mining dashboard

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You don’t have to find the block to share in the reward.

BTC PoW Lab Pool combines solo mining with a community reward model:

  • 85% to the block finder.
  • 10% to other eligible miners.
  • 5% to BTC PoW Lab. (supports this ongoing research, testing and development, alongside pool infrastructure and operations.)

Explore the dashboard, review the rules and connect a worker →

If another miner finds a block, your eligible work can still earn a share of the community allocation. The finder is excluded from their own block’s community distribution.

Why join early? A smaller eligible community can mean fewer miners sharing that 10% allocation when a block is found. Your share depends on valid work, tier and pool composition. Community eligibility lasts seven days after your latest accepted share.

There’s active research behind this pool. Operated by Power CM Software, BTC PoW Lab has demonstrated end-to-end mining improvements for PC-based mining and is working to bring those gains to ASIC hardware. Those findings do not yet represent a demonstrated advantage for ASIC miners connected to the pool.

Our public dashboard lets you follow accepted work and inspect the reward model. Want a more interactive experience? Enable rarity events, colours and sounds based on real submitted shares. These features celebrate what your miner submits; they do not predict a block or make the next hash luckier.

The finder’s reward is assigned directly in coinbase. Community rewards follow a separate payout process after maturity, with a 546-sat minimum. Payments depend on actual block finds. There are no guaranteed daily payouts, and estimates before a block are not earned balances.

Put your ASIC to work, follow your contribution, and join the community while it’s still growing.

Explore the dashboard, review the rules and connect a worker →


r/Bitcoin 13h ago

Fidelity for my Bitcoin?

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I have it on Exodus now, wondering if it would be more secure to put it on Fidelity? I have a Jade cold wallet but I don't feel comfortable putting it on there. I feel like I'm going to fuck it up somehow. And now with everything else going on with cold wallets, I feel even less certain.


r/Bitcoin 17h ago

Bitcoin Has Never Seen What’s Coming Next (Bitwise Head of Research)

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On my podcast ‘Bitcoin for Millennials’ I talked with André Dragosch, Head of Research at Bitwise. We discuss Bitcoin’s institutional adoption via BlackRock ETFs and social proof, why understanding bank money creation rewires the Bitcoin thesis, how financial history exposes flawed economic models, what dollar weakness and Treasury stress mean for hard assets and a Bitcoin supercycle, and why proof of work shapes conviction and sovereignty.


r/Bitcoin 21h ago

Whats happened to Bitcoin every time after Gold pumps again...?

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Gold just did something it hasnt done in this size before. Every prior leg up in gold has eventually bled capital into Bitcoin on a lag, not immediately, but reliably.

Look at the marked bottoms on both charts, theyre not lined up by date, theyre lined up by structure. Rounded accumulation, a spring, then the same reversal candle right at the low. Happens on gold first, then BTC does what BTC does, and rips, when the majority think its dead.

What makes this one different is scale. This isnt a normal gold rally, this is the biggest rotation into gold on record, meaning theres more profit sitting there right now than any prior cycle, waiting to get bored or scared or greedy enough to look for the next asymmetric trade. BTC is sitting at the most oversold structural point of its own pattern at the exact moment that pile of capital exists.

Nobody knows the timing. I dont either. But if you zoom out on every rotation golds ever had, the setup on Bitcoin in all cases so far saw more upside in % gains than it currently big brother to the left.

I built a career reading how to profit from patterns like these before they play out live, doesnt mean it guaranteed by any means, but this is one of the cleanest versions Ive seen.


r/Bitcoin 1d ago

Liquid Network appears to have been stalled for 5 hours and had 4,000 BTC moved without authorization.

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r/Bitcoin 23h ago

"There is a massive restructuring of commerce that has to happen, and Bitcoin will be at the center of that."

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r/Bitcoin 18h ago

Expert Security Audit for three bitcoin based projects

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Over the past few months, we’ve been putting our AI security audit agent against real Bitcoin code.

It has already helped us uncover and responsibly report multiple security issues across projects in the Bitcoin ecosystem, including:

Bark, Syscoin, RGB, Ledger, Bitcoin, Bitkey, BDK Wallet, Keystone, Lightning Labs, Lightning implementations, Krux, KTH, BitBox, BCHD, Mostro, ACINQ, LDK, Cake Wallet, BIP32/BIP39 implementations, tiny-secp256k1, Blockstream Jade, Elements and others.

Now we want to go further.

We’re giving 3 Bitcoin projects a security scan at zero cost.

We’ll run our agent against the codebase, manually triage anything interesting, and responsibly disclose confirmed security issues to the maintainers.

We’re particularly interested in serious open-source Bitcoin infrastructure protecting real users or funds.

Maintaining something in the Bitcoin ecosystem? Drop your repo below.


r/Bitcoin 1d ago

10 Years Ago Bitcoin Was $610. Where Will It Be in 2036?

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10 years ago today, Bitcoin was ~$610.

Nobody knew if it would survive.

Today, it’s ~$80,000.

Now imagine someone posting this on September 6, 2036:

“Bitcoin was only $80K back in 2026.”

What do you think the number will be?

$100K? $500K? $1M? $5M?

RemindMe! 10 years. 👀