ChainFeeds PRO Reviews ePBS, Verifiable UTXO Discovery, and the Limits of RISC-V Instruction Metering
ChainFeeds Research’s latest PRO issue brings together a wide set of protocol and research updates across Ethereum and Bitcoin. The edition highlights Ethereum’s planned introduction of enshrined proposer-builder separation, or ePBS, through EIP-7732 in the Glamsterdam upgrade, arguing that the change could reduce protocol reliance on relays while leaving core MEV market concentration issues unresolved. It also examines two wallet entropy-generation methods designed to reduce dependence on opaque software random number generators, alongside a Bitcoin Optech roundup covering a Core Lightning security release, an opt-in replay protection proposal for potential Bitcoin forks, and the gradual wind-down of Hardware Wallet Interface. On the Ethereum research side, the issue reviews a proposal that combines EIP-8304 with UTXO Proof Tables to let wallets verify UTXO discovery without fully trusting RPC providers, and a RISC-V execution study showing that identical instruction counts can still produce large timing differences across workloads and hardware. The report also notes a post-quantum migration idea for ecrecover, a set of MEV research summaries from Flashbots, and a paper on migration paths to post-quantum cryptography for Bitcoin, Ethereum, and Solana.








