Whaaaatsuuuup

#Fingerprinting Bitcoin Nodes Through Addr Message Patterns Bitcoin nodes unintentionally leak identity across networks through the way they construct and forward addr messages. Each node maintains a table of known peers and periodically shares these with others. But the selection, ordering, and especially the timestamps embedded in these messages are not uniform. They reflect subtle patterns that are consistent over time. Because timestamps are not randomized and because node address tables (AddrMan) have deterministic behaviors, an observer receiving addr messages from a node over Tor and later over clearnet can correlate the two. This effectively links the two sessions as coming from the same node, even if IP addresses or networks change. The node reveals itself without knowing it. This is not a protocol bug but an emergent privacy weakness in the design of the address relay mechanism. It allows passive observers to fingerprint a node based purely on how it gossips addresses, without needing access to its mempool, block data, or outbound connections. It affects all Bitcoin Core nodes and any implementation using similar address handling logic. Mitigations under discussion include stripping timestamps from shared addresses, introducing randomization in the address selection process, or even limiting the amount of shared peer data. But until those changes are widely adopted, the network remains vulnerable to low-effort, high-precision tracking.

🍔 Bitcoin & the Big Mac: A Juicy Thought Experiment In 2025, a Big Mac costs about $5.15. With Bitcoin around $108,000, one coin buys you roughly 21,000 Big Macs. Fast-forward to 2035. Let’s say fiat loses half its value and a Big Mac now costs $10. Meanwhile, Bitcoin climbs to $500,000. That same coin now buys you 50,000 burgers. The world didn’t get more productive. You’re not eating more because the economy grew. You’re eating more because your money stopped leaking. Bitcoin doesn’t need GDP growth to gain purchasing power. It just needs fiat to keep doing what it does best … melting. When that happens, Bitcoin doesn’t grow. It re-prices everything else. Still measuring value in dollars? Try burgers. They’re harder to fake.

Anyone already also quantum bitcoin mining?

Zapping still around ?

Trust was never optional in fiat. You trust the central bank not to debase. You trust the government not to seize. You trust the system not to collapse. How’s that going?

They said ‘don’t fight the Fed.’ So we left. With Bitcoin.

Ready to go back in time to pick up 10k Bitcoin from Laszlo Hanyecz

„Custodial“ got me blocked

Clarification on the recent Bitcoin Core change: The OP_RETURN size limit was not removed. What changed: transactions can now include multiple OP_RETURN outputs, each still limited to 80 bytes. Example: Previously → 1 OP_RETURN (80 bytes max) Now → 3 OP_RETURN outputs (80 bytes each, same total size rules) This is not a removal of limits just more flexibility within them.

Who knew

When Bitcoin Knots goes to 15%

#Bitkey Not an innovation because it repackages the same server-assisted multisig model already used by wallets like Green. Bitkey uses a 2-of-3 multisig with one key on the mobile app, one on the hardware device, and one held by Block. While users can recover funds without the server if they retain both devices, any loss requires vendor involvement. The open-source client and reproducible builds do not remove the trust dependency on backend services. Unlike Bitkey, Green offers a 2-of-3 setup with an offline backup that allows recovery without contacting the vendor. Bitkey shifts complexity into a user-friendly flow but offers no meaningful

Bitcoin will be fixed Soon seedless yield on spam

Proof of Reserve maximalist but demanding privacy 🤣 LMFAO

Bitcoin is the quietly typed, mathematically enforced way of saying f*** you without raising your voice 🌹

People trusted banks to hold their money and governments to protect its value. Both failed. In 2007, Northern Rock collapsed. Withdrawals were frozen. In 2013, Cyprus seized deposits. In 2022, Canada froze accounts. In the UK and US, central banks printed trillions. Inflation followed. The rules changed. The value dropped. Access was denied. Bitcoin does not change the rules. It does not inflate. It does not freeze. It runs on code. Ownership is defined by keys, not permission. That was the problem. This is the solution.

10,000 BTC for two pizzas might seem expensive now, but without that transaction, we might still be asking if Bitcoin could ever buy anything.