Why 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.
№ 026MiningBitcoin'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.