Bitcoin Script Has No Loops: Security by Design
Bitcoin Script omits loops entirely, not as a limitation, but as a deliberate defense against Denial-of-Service attacks on every node in the network.
№ 050SecurityReplay Attacks vs Double-Spends on Forked Chains
Replay attacks and double-spends differ mechanically, defensively, and in attacker effort. The distinction shapes real security decisions on forked chains.
№ 051BitcoinBIP-32 HD Wallets: How Key Derivation Actually Works
BIP-32 derives millions of Bitcoin keys from one seed without exposing the root. The exact mechanism, the hardening tradeoff, and where the real risks sit.
№ 052AnalysisWhat Is Cryptocurrency? A Plain-English Guide to How It Actually Works
No jargon. A direct answer to what cryptocurrency really is, whether it counts as money, and how Bitcoin fits into the bigger picture.
№ 053AnalysisHow Does Blockchain Work? A Plain-English Walkthrough
Forget the jargon. Here's a clear, honest explanation of how a blockchain actually keeps records straight across thousands of computers that have never met.
№ 054AnalysisProof of Stake vs Proof of Work: Which Consensus Actually Wins?
Two ways to secure a blockchain, two very different bets. I break down how proof of work and proof of stake really differ, where each one breaks, and which I'd trust with my money.
№ 055AnalysisHas Bitcoin Bottomed? The Cycle Case at $63K
Bitcoin sits near $63,000 after a brutal slide. A cycle-aware reading of the data, plus the regulatory and fraud noise around it. What to watch.
№ 056SecurityFrance Sets 2027 Deadline for Quantum-Safe Encryption
France will stop certifying products without quantum-safe encryption in 2027, just as Bitcoin developers weigh their own post-quantum timeline.
№ 057AnalysisSpot Bitcoin ETFs Quietly Changed Who Sets the Price
The flows tell a different story than the charts. A year in, the marginal buyer of bitcoin looks nothing like the one most analysis still assumes.
№ 058BitcoinPSBT and Bitcoin Multisig: The Offline Signing Format
BIP-174's PSBT format lets distributed signers approve Bitcoin transactions independently, on air-gapped devices, with no shared online session required.
№ 059SecurityPedersen Commitments and Confidential Transactions Explained
Pedersen commitments hide transaction amounts while letting anyone verify no coins were created from nothing. The exact mechanism, step by step.
№ 060BitcoinBitcoin Compact Block Relay: Latency, Numbers, Mechanics
Compact block relay cuts Bitcoin's propagation bandwidth by ~98%. BIP 152 explained with figures, a worked example, and misconceptions addressed.