How Bitcoin's UTXO Model Prevents Double Spending
Bitcoin stops double spending without a bank using unspent transaction outputs. Here's the exact mechanism, with a worked example.
№ 254BitcoinHow Hash Functions Prevent Bitcoin Block Malleability
Cryptographic hash functions lock every Bitcoin block into place. Here's the exact mechanism that makes retroactive tampering computationally absurd.
№ 255EthereumWhy Ethereum Validators Miss Attestations Without Ejection
Ethereum validators can skip attestation duties and keep their stake. Here's the exact penalty math and the threshold that actually gets you removed.
№ 256BitcoinHow Taproot Changed Bitcoin Multisig's On-Chain Footprint
Taproot made complex Bitcoin multisig wallets look identical to single-sig on-chain. Here's the exact mechanism, the tradeoffs, and what it means for privacy.
№ 257SecurityWhy Smart Contract Audits Miss Reentrancy Bugs
Single-function reentrancy is well-understood. Cross-function and cross-contract variants still slip through audits. Here's exactly why, and how.
№ 258DeFiHow Decentralized Oracles Reach Consensus Explained
Decentralized oracles solve the blockchain data problem without recreating centralized trust. Here's the exact mechanism, with numbers.
№ 259BitcoinBitcoin Dust Threshold: What Makes a UTXO Unspendable
The Bitcoin dust threshold isn't arbitrary. Here's the exact fee logic that turns a tiny UTXO into an unspendable output — and why it matters.
№ 260EthereumEthereum Beacon Chain Validator Slashing Explained
How Ethereum's Beacon Chain detects and punishes equivocation: the mechanics of slashing, whistleblower rewards, and the correlation penalty explained clearly.
№ 261AnalysisHow MEV Changes Validator Incentives in Proof-of-Stake
MEV reshapes what validators actually optimize for in PoS systems. Here's the concrete mechanics, the real tradeoffs, and what most guides skip.
№ 262SecurityHow zk-SNARKs Stay Small Without Breaking Soundness
zk-SNARKs produce tiny proofs that verify in milliseconds. Here's the exact mechanism that makes them compact without letting cheaters through.
№ 263EthereumWhy Ethereum Gas Prices Spike Unexpectedly
Block space can look half-empty yet gas prices still spike. Here's the precise mechanism behind Ethereum fee surges most guides never explain.
№ 264DeFiWhy Impermanent Loss Beats Fee Revenue in Stable Pairs
Stable pairs seem safe from impermanent loss, but specific conditions flip the math against LPs. Here's exactly when fees stop covering the damage.