Ethereum's Fork Choice Rule: Tie-Breaking in LMD-GHOST
When two Ethereum blocks carry identical attestation weight, a deterministic root-hash rule decides the winner, the mechanic explained, with a worked example.
№ 002EthereumEthereum Gasper: Proposer Slashing Explained
Gasper slashes validators who sign two blocks at the same slot. Mechanism, correlation penalty math, and a concrete worked example.
№ 003AnalysisEconomic Attacks: Proof-of-Stake vs Proof-of-Work
Attack costs in PoS and PoW differ mechanically, not just in scale. A precise breakdown of what attackers spend, risk, and lose in each model.
№ 004AnalysisVRFs and Proof-of-Stake Leader Election Explained
Why proof-of-stake protocols use verifiable random functions to pick block proposers, how the math works, and what breaks without them.
№ 005AnalysisFinality Reversion vs. Reorganization in Proof-of-Stake
A finality reversion breaks a cryptographic guarantee; a reorg is a race condition. The difference determines whether settlement is statistical or binding.
№ 006EthereumEthereum 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.
№ 007EthereumEthereum 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.
№ 008AnalysisEconomic vs Cryptographic Finality in Consensus
Two blockchains can both call a transaction 'final' and mean completely different things. Here's what actually separates the two guarantees.
№ 009EthereumHow Proof-of-Stake Validators Are Selected for Blocks
Proof-of-stake block proposer selection isn't random luck. Here's the precise mechanism that keeps it fair and resistant to centralization.
№ 010EthereumEthereum Proof-of-Stake Finality Explained
Ethereum's PoS finality isn't instant. Here's the exact two-epoch mechanic that determines when a block is truly safe to treat as settled.
№ 011AnalysisProof-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.
№ 012AnalysisHow 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.