Ethereum Trie Depth and Light Client Proof Costs
Ethereum's Keccak-256 state trie depth sets the floor for light client proof costs. Precise mechanics, worked numbers, and what Verkle tries actually change.
№ 002EthereumEthereum's Sync Committee: Light Client Verification
512 validators, BLS aggregation, and rotating handoffs let Ethereum light clients verify the chain head themselves, no full node, no trusted server required.
№ 003BitcoinBitcoin Compact Filters: Private Light Client Sync
BIP 157/158 compact filters let Bitcoin light clients verify transactions locally without exposing addresses to any full node. The mechanism, plainly explained.