Bitcoin's Coinbase Maturity Rule Explained
Bitcoin forces miners to wait 100 blocks before spending a block reward. Here's the exact mechanic, why it exists, and what it prevents.
№ 098BitcoinHow SegWit Changed Bitcoin Transaction ID Calculation
SegWit didn't just shrink fees. It fixed a subtle flaw in how Bitcoin transaction IDs are built. Here's the exact mechanism, explained clearly.
№ 099MiningHash Rate Distribution and Bitcoin Censorship Resistance
How mining pool concentration quietly shapes Bitcoin's ability to resist transaction censorship — and what the numbers actually mean for the network.
№ 100SecuritySybil Attacks on Nakamoto Consensus: The Real Cost
Why flooding a proof-of-work network with fake identities doesn't work: the economic mechanics that make Sybil attacks prohibitively expensive.
№ 101AnalysisProof-of-Stake Slashing Conditions: Ethereum vs Competitors
Slashing rules vary wildly across PoS networks. Here's how Ethereum, Cosmos, Polkadot and Solana handle validator penalties and why the differences matter.
№ 102BitcoinHow 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.
№ 103BitcoinHow 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.
№ 104BitcoinHow 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.
№ 105SecurityWhy 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.
№ 106DeFiHow Decentralized Oracles Reach Consensus Explained
Decentralized oracles solve the blockchain data problem without recreating centralized trust. Here's the exact mechanism, with numbers.
№ 107EthereumEthereum 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.
№ 108RegulationDeFi Compliance Faces a Reckoning on Two Fronts
A $1.34M Raydium exploit and Botanix's layer-2 shutdown show DeFi's compliance and security gaps colliding with thin demand. What regulators watch next.