How 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.
№ 062BitcoinBitcoin 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.
№ 063AnalysisHow 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.
№ 064BitcoinOP_RETURN: How Bitcoin Stores Data On-Chain
OP_RETURN lets anyone embed up to 80 bytes of arbitrary data in a Bitcoin transaction. Here's exactly how it works and what it costs.
№ 065MiningWhy Miners Sometimes Orphan Their Own Blocks
Proof-of-work miners occasionally discard valid blocks they just mined. Here's the exact mechanic, why it happens, and what it reveals about mining incentives.
№ 066BitcoinHow Mempool Congestion Spreads Across Node Clusters
Mempool congestion doesn't hit all nodes at once. Here's how geographic propagation works and why your fee estimate can lag reality by minutes.
№ 067EthereumEthereum Uncle Blocks and Network Security Explained
Uncle blocks shaped Ethereum's proof-of-work security in ways most guides miss. Here's the concrete mechanics, the tradeoffs, and why the Merge ended them.
№ 068MiningBitcoin's Difficulty Adjustment: Why Two Weeks?
Bitcoin recalibrates mining difficulty every 2,016 blocks. Here's the exact mechanic, why Satoshi picked that window, and what it means in practice.