Bitcoin Nonce Exhaustion and Extra-Nonce Mining Explained
Modern ASICs exhaust Bitcoin's 4-billion nonce space in microseconds. This is the exact mechanism pools use to keep miners working.
№ 062EthereumEthereum Withdrawal Credentials: BLS to Execution Migration
How Ethereum validators migrate withdrawal credentials from BLS to execution-layer addresses, what the process does mechanically, and why it's a one-way door.
№ 063BitcoinBitcoin Timelocks: Absolute vs Relative Lock Mechanisms
OP_CLTV and OP_CSV enforce time against different clocks. Conflating them breaks scripts at consensus level, here is the exact distinction.
№ 064EthereumEthereum Blob Pruning and the Fraud Proof Timing Risk
Ethereum deletes blob data after ~18 days, a pruning schedule that creates a concrete asymmetry for anyone challenging a rollup fraud proof.
№ 065BitcoinBitcoin Signet Custom Challenge: Private Consensus Rules
Bitcoin's signetchallenge parameter lets developers run a fully controlled private test network. The mechanism, its real limits, and how to spin one up.
№ 066EthereumEthereum Penalties: Inactivity Leaks vs Slashing Explained
Ethereum punishes validators two very different ways, the mechanics behind inactivity leaks and slashing, and why the math matters for stakers.
№ 067SecurityBitcoin xpub Exposure: One Leaked Key, Whole Wallet at Risk
A leaked Bitcoin extended public key exposes every address in your wallet tree, past and future. The mechanism, the math, and the containment steps.
№ 068BitcoinBitcoin CTV: Trustless Payment Pools Explained
CHECKTEMPLATEVERIFY lets Bitcoin users build trustless payment pools without custodians, the exact mechanic, with a worked three-party example.
№ 069BitcoinBitcoin Replace-by-Fee: Full vs Opt-In Rules Explained
Full RBF and opt-in RBF operate differently at the node level, concrete mechanics, fee-rate thresholds, and what miners actually receive in their mempools.
№ 070BitcoinBitcoin Drivechain: Miner-Secured Sidechain Withdrawals
Drivechain repurposes Bitcoin miners as sidechain withdrawal referees, exact mechanism, real tradeoffs, and what critics in the BIP threads actually argue.
№ 071EthereumEthereum's Gasper Consensus: Fork Choice Explained
Gasper fuses LMD-GHOST and Casper FFG to resolve competing chain heads. A close look at the mechanics behind late attestations and local reorgs.
№ 072EthereumEthereum Blob Fee Market: Rollup Competition Explained
A fixed six-blob cap per block forces rollups into a live auction every twelve seconds. The mechanics, the incentives, and the numbers behind fee spikes.