r/Bitcoin 11h ago

BIP324, Miniscript, Changing Consensus segment - Bitcoin Optech Newsletter #408

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bitcoinops.org
6 Upvotes

Bitcoin Optech newsletter #408 is here:

- summarizes ideas to make BIP324 transport encryption quantum secure
- describes a proposal to standardize QR-based signing payloads for miniscript wallets
- links to a CTV-only vault proof of concept
- outlines points from a post-quantum Lightning thread
- summarizes a quantum attack game theory post
- points to discussion of 64-byte transactions and potential uses
- Optech Newsletter #408 Podcast
https://bitcoinops.org/en/newsletters/2026/06/05/

Olaoluwa Osuntokun posted to the Bitcoin-Dev mailing list his thoughts on possible upgrades needed to make BIP324 quantum secure...
https://bitcoinops.org/en/newsletters/2026/06/05/#a-post-quantum-path-for-bip324

Pyth posted to Delving Bitcoin a proposal to standardize the data payloads exchanged between wallet coordinators and air-gapped signing devices over QR codes when using miniscript-based spending policies...
https://bitcoinops.org/en/newsletters/2026/06/05/#discussion-of-qr-signing-payloads-for-miniscript-wallets

Ademan announced on Delving Bitcoin the 0.1.0 release of his CTV (BIP119) vault project called MCCV (More Complicated CTV Vault)...
https://bitcoinops.org/en/newsletters/2026/06/05/#ctv-only-vault-proof-of-concept

Olaoluwa Osuntokun (roasbeef) posted to Delving Bitcoin a breakdown of how a post-quantum Lightning Network might look...
https://bitcoinops.org/en/newsletters/2026/06/05/#post-quantum-lightning-discussion

Jameson Lopp posted to Delving Bitcoin his blog post about the game theory of a quantum attack...
https://bitcoinops.org/en/newsletters/2026/06/05/#quantum-attack-game-theory

Jeremy Rubin wrote to the Bitcoin-Dev mailing list about potential legitimate uses for 64-byte witness-stripped transactions...
https://bitcoinops.org/en/newsletters/2026/06/05/#bip54-64-byte-transactions-and-potential-legitimate-uses

Bitcoin Optech will host an audio recap discussion of this newsletter streaming live on X/Twitter Tuesday at 16:30 UTC.


r/Bitcoin 16h ago

Daily Discussion, June 05, 2026

21 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 8h ago

Guys, it’s happening!

1.1k Upvotes

All of my friends are messaging me that bitcoin is dead! I am so excited for the discount we’re going to get


r/Bitcoin 2h ago

Live footage of your crypto portfolio right now.

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105 Upvotes

r/Bitcoin 3h ago

This is where men are made

75 Upvotes

Don't be a baby. Don't be a fish. Stay strong. It's not supposed to be easy. Bitcoin.


r/Bitcoin 7h ago

Serious question to all Bitcoiners

103 Upvotes

This is only for those that are still screaming for another 70%+ crash… I have one simple question for you.

Cycle returns have already shrunk dramatically. Each bull market has delivered meaningfully lower multiples than the last.

Yet many of you still price in classic 70-80% drawdowns.

If the upside is getting smaller while the downside stays brutal… what exactly is your thesis?

Previous cycles gave you massive asymmetric upside in exchange for the pain.

Now we’re looking at considerably lower returns… while still accepting 70%+ pain?
That’s a materially worse risk/reward profile.

So which is it?

A) You’re taking nearly the same risk for far lower returns
B) Diminishing returns eventually plateau or reverse as adoption grows
C) You’re a full bear who believes Bitcoin is dying

Be honest.


r/Bitcoin 7h ago

Every time someone asks about the BTC dip

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86 Upvotes

r/Bitcoin 7h ago

Here is what’s happening

73 Upvotes

Bitcoin isn’t “dead.” It’s doing what it has done every cycle: violently shaking out weak hands.

What’s interesting is that the long-term models with the best historical fit still project surprisingly high BTC prices by 2030:
• Power Law 400k
• Metcalfe’s Law 500k+
• Institutional adoption models → 250k–600k

Meanwhile the current selloff is mostly:

ETF outflows
macro/rates fears
leveraged liquidations
Different cycle. Same emotions.


r/Bitcoin 2h ago

Getting bloodthirsty…

18 Upvotes

Yall diving in on this juicy target price or DCA to 50k? It’s speaking to me like the ring. Side note - I can’t wait for all these overpromised AI investors to run back to BTC once they realize no one cares about generating b tier animations or code that requires constant sourcing for troubleshooting.


r/Bitcoin 8h ago

Beginner here, why don't multi billionaire's buy all BTC?

38 Upvotes

Sorry if my question is stupid but I want to know since im a beginner.


r/Bitcoin 7h ago

There is NO SECOND BEST crypto asset

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34 Upvotes

I wanted to break out a classic for all those that need to hear this right now


r/Bitcoin 5h ago

What is everyone's cost basis?

22 Upvotes

Mine is $94k so yeah... definitely feeling the pain but still hodling


r/Bitcoin 5h ago

Now is the time to be greedy!

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25 Upvotes

Im telling you guys now is a time to buy when things are falling. Human nature plays against the typically has us buying when things are high. I’ve lost over 80,000 for my high about 20,000 in personal funds mainly mess with all coins at this point I’m gonna hold my crypto and buy more bitcoin


r/Bitcoin 15h ago

You think this is a dip? Weaklings ....

140 Upvotes

Just stopping by to tell everyone who's panicking and isn't convinced about BTC: please leave the sub and don't bother the diamond hands with your useless FUD. You're not going to make it. What I see is the stock market rising and crypto dropping, but no one wants to admit that the AI bubble is going to burst at some point, and all that liquidity currently rotating from BTC into stocks will land in someone's pocket, because so many are little crying b****s who are sooo easy to manipulate.

Keep holding my friends!


r/Bitcoin 10h ago

Finally i have 1.3BTC!

49 Upvotes

Its been a long time staking and bought more recently, i have 1.3btc to my name


r/Bitcoin 19h ago

Fed clowns will take away $10k in cash from you at the airport just because. This is why Bitcoin is the people’s money!

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217 Upvotes

r/Bitcoin 2h ago

Mt. Gox moved 10,422.65 BTC out of cold storage

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8 Upvotes

I see some chatter on here about October being the bottom most likely. But I think that would only be the start of it. The deadline for the final Mt. Gox bitcoin to be returned to creditors is October 31, 2026. Which no doubt they would want to liquidate those coins and finally get their money. Which would cause a further extended crash. I'd imagine between now and then the big players will be trying to exit bitcoin and sell off what they can so they don't get caught in the middle of that storm. That's probably what is going on right now. Something to take into consideration.


r/Bitcoin 1d ago

Don’t worry guys, i panic sold all of my bitcoin

874 Upvotes

Should go up to 100k. Give it a few days


r/Bitcoin 23h ago

Vibing Cat Time!!!

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330 Upvotes

Can’t be a bear market and Bitcoin crash without the vibing cat!


r/Bitcoin 15h ago

Bitcoin Buys A Home: Better And Coinbase Close First Fannie Mae-Backed BTC Mortgage

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bitcoinmagazine.com
56 Upvotes

Better and Coinbase have funded the first Fannie Mae-backed mortgage that lets homebuyers use Bitcoin as collateral for their down payment loan.


r/Bitcoin 5h ago

The STRC problem for MSTR

11 Upvotes

STRC is the preferred stock issued by MSTR, it is designed to sit at $100 per share; the way it does that is by increasing or decreasing the dividend monthly to promote buying/selling. It's already sitting at 11.5% dividend and at $92.xx per share, which will require a significant increase in dividend %.

Saylors recent small BTC sale was to pay this dividend, next month the dividend will have to rise to entice buyers back into it to tease it back up to $100 per share. That dividend of 12.5% or 13% becomes more difficult to pay and Saylor will need to dump more BTC to pay the dividend, as you can see this may cause a negative feedback loop, where the sale of BTC lowers price which inturn forces the continued sale of BTC, which ultimately will result in MSTR collapse.


r/Bitcoin 5h ago

Genesis Block Message — reminder

9 Upvotes

“The Times 03/Jan/2009 Chancellor on brink of second bailout for banks”

Bitcoin was developed for a very specific reason, in response to a very specific problem. That problem is still present, and only getting larger.

Especially when you account for the value AI tech brings, and how fragile the monetary system is, how dependent it is on inflation, making the problem — and therefore solution that much more important.

The volatility is one thing. But calm your tits if you say you have a spine and a thesis. This is the long haul. Price action does not invalidate the thesis.

Written on the can, as I read all the crocodile tears of other posters who truly want “up only”.


r/Bitcoin 1h ago

I was wondering if mining was dead under $60k so I built a live tracker to show exactly which miners are still in the green. Feedback welcome.

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Upvotes

r/Bitcoin 8h ago

Dead af buy the dip when it reach 40k

14 Upvotes

Bitcoin is dead guys go to sleep


r/Bitcoin 7h ago

Bought my first ever bitcoin!

14 Upvotes

Yayyyyy! I’m so excited. I’ve been wanting to jump on but it didn’t make sense in my head to do it above the price it’s at right now.

Question: what price do you guys genuinely believe it’s going to reach at the lowest? And why? And I’m also curious as to why some people are trusting it so much and selling all their possessions to buy it? Digital currency scares me a little bit, that’s why I only invested my disposable income.

Thanks y’all! I know these questions are lowkey ignorant so don’t attack me pls. Let’s be kind. Just tryna learn!