Bitcoin education that doesn't suck. Learn Bitcoin: The Journey, Rabbit Holes, Glossary. Free. Ad-free. No Tracking. Open source. Bitcoin only. No bullshit.
Joined October 2023
- Tweets810
- Following1
- Followers350
- Likes409
New chapter: Which Coins Does Your Wallet Spend?
Your wallet has no balance. It has a bag of coins, and every payment starts by picking which to spend. What the pick costs now and later, what it tells a chain analyst, and how Bitcoin Core decides.
learnbitcoin.com/rabbit-hole…
We brute-forced two vanity addresses on a laptop CPU this week.
1LearnBTC, any letter case: 46 minutes.
bc1qlearn8tc: 6 hours 1 minute.
Same eight chosen characters. Bech32 has no upper or lower case to lean on, so the average job was 2.7x bigger. Luck did the rest.
Half of the top 20 largest quantum-exposed bitcoin addresses belong to exchanges and custodians, holding ~1.06M BTC learnbitcoin.com/rabbit-hole…
35% of all bitcoin (7.1M BTC) sits where its public key is already visible on-chain.
@drakefjustin's "bunker mode" advice fixes most of it: 5.2M of that is exposed only because an address got reused. Move it to a fresh bc1q address and the key is hidden again.
The other 1.9M is exposed by design: early pay-to-pubkey coins and Taproot.
Bitcoin's entire security model is that rewriting history costs more than anyone can profitably spend.
🤖 Made with AI
The 60-second version, now on YouTube:
youtu.be/5CX5XATmQR4
Alice sends Bob 0.1 BTC. What actually happens between "Send" and "Confirmed"? Forty-eight seconds. Every step.
learnbitcoin.com/journey/usi…
Multisig in 35 seconds.
Three keys. Any two sign.
Lose one. Spend with the other two.
Steal one. Steal nothing.
learnbitcoin.com/glossary/mu…
#Bitcoin
The mempool isn't a queue. Every node has its own. Transactions sort by fee rate, not arrival time. Pay the rate. Or wait. Or rebroadcast.
learnbitcoin.com/rabbit-hole…
#Bitcoin
