Bitcoin SPV Bloom Filters and the Privacy Leak
SPV bloom filters were designed to obscure your addresses from nodes, the intersection attack math shows why they don't, and what actually works instead.
№ 038SecurityBitcoin Peer Discovery and Eclipse Attacks Explained
Bitcoin's peer discovery resists eclipse attacks via randomized bucketing, anchor peers, and subnet limits, but the gaps are real and worth knowing.
№ 039SecurityConfidential Asset Protocols: Hiding Amounts on Chain
Pedersen commitments and range proofs shield transaction amounts on-chain while preserving cryptographically sound audit trails for regulators and investors.
№ 040EthereumValidator Correlation Risk and Slashing in Staking Pools
Why slashing penalties scale with how many validators fail together, and how staking pool design either contains or amplifies that damage.
№ 041BitcoinBitcoin 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.
№ 042SecurityReplay 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.
№ 043EthereumEthereum Weak Subjectivity Checkpoints Explained
Long-range attacks can rewrite proof-of-stake history silently. This is the precise mechanism Ethereum uses to stop them, and what node operators must verify.
№ 044DeFiDeFi Oracle Delays: Manipulation-Resistance by Design
DeFi protocols deliberately lag price feeds to make manipulation costly. The tradeoffs between TWAP windows, latency risk, and liquidation accuracy explained.
№ 045BitcoinBIP-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.
№ 046SecuritySilent Inflation Bugs in Zero-Knowledge Proof Systems
ZK inflation bugs mint tokens from nothing while every proof verifies clean. The mechanism, the failure modes, and what a real detection framework requires.
№ 047EthereumEthereum Validator Withdrawal Credentials Explained
BLS vs execution-layer withdrawal credentials create sharply different exit paths for dormant validators, a gap that compounds quietly and can strand funds.
№ 048SecurityTexas Brothers Plead Guilty in $8M Crypto Robbery
Two Texas brothers admit to a violent crypto robbery that allegedly netted $8 million. Each could serve up to 20 years. What the case signals.